Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| a model for emmetropization: predicting the progression of ametropia. | the response of a second-order feedback system is used to describe the controlling process that regulates the refraction of the human eye to achieve optimal visual acuity over the years (emmetropization). from data collected in past refractions, the equation of the feedback system has been derived for individual eyes and used to predict changes in their refraction with age with an accuracy of 0.50 diopters for 89.1% of the eyes tested. if the model is applied to other populations, the root mean ... | 1987 | 3614846 |
| cartilage disorders: comparison of spin-echo, chess, and flash sequence mr images. | magnetic resonance (mr) imaging is known to be a suitable modality for the visualization of the hyaline cartilage and the fibrocartilage joint structures. to compare standard spin-echo (se) images with water images obtained with the chemical shift selective (chess) sequence and with the fast low angle shot (flash) sequence, examinations were performed with all three sequences in eight volunteers and 28 patients with inflammatory degenerative and traumatic alterations of the knee, hip, and sacroi ... | 1987 | 3615875 |
| [hygienic evaluation of the changes in work capacity of young chess players during training]. | 1987 | 2887487 | |
| tempests in a test tube: two new studies ask why scientists cheat. | 1987 | 11649813 | |
| darwinian evolution in games with perfect information. | we consider a model of darwinian evolution in games with perfect information like chess or checkers. the evolution is viewed as a sequence of strategies, each of which wins over its immediate predecessor. we argue that the intelligence level of strategies need not necessarily increase during this type of evolution. | 1987 | 3828402 |
| terminal distributions along a 'knight's line' for a stochastic epidemic. | the model under consideration relates to the spread of a disease in a finite population where removal of infectives is allowed to occur. it is equivalent to a restricted random walk over a discrete grid of points interior to a trapezium. we consider an artificial barrier on the grid at which the epidemic ceases. the barrier is a semi-diagonal resembling the path of the knight in chess and allows some simplification of the analysis. in particular, we investigate the probability distribution along ... | 1987 | 3503088 |
| [psychotherapy. intelligence will cheat for the benefit of feelings. interview by mette-marie davidsen]. | 1988 | 3394044 | |
| the role of theories of cognitive aging: comment on salthouse. | cognitive models of aging ought, minimally, to simulate age effects for a broad range of tasks, and their underlying assumptions ought to be constrained by existing data on cognitive mechanisms. salthouse's model (and other parallel distributed-processing network models) meets the first criterion better than it meets the second. another weakness is in its inability to account for goal-directed behavior. thus, models like that of salthouse seem best suited to the description of automatic informat ... | 1988 | 3268238 |
| rcn expected to meet with health secretary. | as nursing standard went to press on monday the complex political chess-game involving the health care unions and the government took a critical turn. | 1988 | 27415491 |
| standardized clinical evaluation of depressive and anxious symptomatology. | the main standardized instruments for clinical assessment of depression and anxiety are diagnostic criteria, rating scales, and mental tests, mainly questionnaires. the systematic use of rigorous diagnostic criteria is useful in recruiting sufficiently homogeneous patient groups for clinical research. the polydiagnostic system represents, in this perspective, a stimulating trend of research, as it is not linked to a sole nosographic reference system. some rating scales have recently been develop ... | 1988 | 3180118 |
| trends in temperament research. | the paper focuses on current concepts of temperament that has led to different approaches within the field of temperament research. the concept of temperament has interested scholars from ancient greece until modern european and american research teams. also in soviet psychology temperament is getting attention. in finland temperament research has advanced on two different lines. there is widespread agreement that temperament is a group of related traits and not just one trait attributed to the ... | 1988 | 3067510 |
| a comparison of selective saturation and selective echo chemical shift imaging techniques. | we report on a comparative study of two methods of chemical shift imaging which can be used to selectively image fat and water in vivo. both methods require a b0 field sufficiently homogenous to resolve the methylene and water spectral lines. one method, called chess, uses a chemically selective pulse to saturate the unwanted spectral line. the other method, called secsi, achieves chemical selectivity by using a soft 180 degree rf pulse in forming a spin echo image. both methods require that the ... | 1988 | 3185136 |
| localized high-resolution proton nmr spectroscopy using stimulated echoes: initial applications to human brain in vivo. | water-suppressed localized proton nmr spectroscopy using stimulated echoes has been successfully applied to detect metabolites in the human brain in vivo. the steam spectroscopy sequence allows single-step localization by exciting three intersecting slices. water suppression is achieved by preceding chemical-shift-selective (chess) rf pulses. high-resolution (0.05 ppm) proton nmr spectra of healthy volunteers have been high-resolution (0.05 ppm) proton nmr spectra of healthy volunteers have been ... | 1989 | 2540396 |
| model of respiratory sinus arrhythmia in man. | the first section of the model delineates the parasympathetic signal as a function of the interaction between the respiratory and the vagal neurones of the common brainstem network. the second section is a version of chess and calaresu's description of the vagus/heart period system in the sympathetically blocked cat. the sympathetic influence is introduced in the third section, taking into account the autonomic effects on the transmembrane potential of the sinoatrial pacemaker as found in the ra ... | 1989 | 2601447 |
| temperament and individuality: a study of malay children. | malay parents of 40 infants and preschool children were interviewed using translations of temperament questionnaires by thomas and chess, and by carey. similarities and differences between malay children and previously studied american children are discussed, and relationships suggested among temperament ratings and malay child-rearing practices and values. | 1989 | 2764073 |
| [the prognosis of the visual results of treating children with congenital cataracts based on visual evoked potentials]. | examination of visual induced potentials on reversible chess-pattern in 46 children with bilateral congenital zonular cataracts before and after surgical intervention has revealed correlation between these potentials and degree of lens opacification. after cataract extraction, positive dynamics of the potentials was observed in case of slightly opacified lenses and was absent in intensive lens opacification. the authors consider it reasonable to use visual induced potentials for prognosticating ... | 1989 | 2797668 |
| reconstruction of postburn sequelae with expanded flaps. | the reconstruction of important skin shortages can only be done with local tissue after expansion has provided the skin demanded by the procedure. none the less, it is pointed out that the most important commitment is the planning of all the steps in the reconstruction, like a chess game, and the management of the expanded skin in the classical way as rotation, transposition, and advancement flaps. nineteen patients with extensive alopecia and three patients with deformities of body contour and ... | 1989 | 2624699 |
| efficacy of tianeptine in anxious-depressed patients: results of a controlled multicenter trial versus amitriptyline. | 265 adult outpatients with dysthymic disorder (dsm-iii) associated with clinically manifest anxiety (according to fda criteria) were included in a multicenter, randomized double-blind study. the trial consisted of three phases: placebo pretreatment phase and inclusion in the trial, treatment phase, placebo posttreatment phase. patients were treated in monotherapy for 42 days with a mean dosage of 3 tablets per day corresponding to 37.5 mg/day of tianeptine or 75 mg/day of amitriptyline respectiv ... | 1989 | 2700774 |
| isolated cyclovertical muscle palsy: a simplified algorithm for interpreting the three-step test. | a simplified algorithm is presented for determining the palsied cyclovertical muscle, once the three-step test is completed. the examiner is required only to remember the three-step test characteristics of two muscles (right superior oblique, left inferior oblique) and the knight's move in chess. | 1989 | 2631301 |
| type a behavior, competitive achievement-striving, and cheating among college students. | the present study examined the cheating behavior in competitive and noncompetitive situations of 40 college students classified as type a (16 women, 24 men) and 40 as type b (19 women, 21 men). type a-scoring students were more likely to cheat than type b-scoring students irrespective of competition. the results suggest that in some situations, especially where expectations for success cannot be met, type a-scoring students may cheat to achieve success. | 1990 | 2349335 |
| to challenge the chess master. | 1990 | 2309016 | |
| [the use of a new plastic method for consolidating a preternatural anus as prevention in paracolostomy hernias]. | once the stage of extraperitoneal evasion of the sigmoid has been achieved for definitive preternatural anus, transsection is made of the aponeurosis of m. obliqu. ext. abdominis along its tendon fibers at a length of 5-6 cm. then an aperture is made along the muscle fibers with the same length on m. obliqu. int. abdominis and m. transversus abdominis as well and finally f. transversalis is transsected. the peritoneum is intra-abdominally detached from the fascia beneath and alongside the apertu ... | 1990 | 2204750 |
| the effects of noise on vision efficiency. | the aim of this study was to determine the relationship between intensity, noise duration and non-auditory effect represented by changes both in visual acuity and the near point of accommodation. changes in vision efficiency determined by a black and white chess board were monitored during and after 1 h exposure to 4 levels of noise: 90 db-a, 93 db-a, 96 db-a or 99 db-a and 2 h exposure to 96 db-a. results indicated that vision impairment can be attributed to a complex relationship between the i ... | 1990 | 2130868 |
| cns and pns effects of nimodipine. | calcium ions play a decisive role in a large number of processes dealing with development, regeneration after damage, and aging of elements of the nervous system. nimodipine, a member of the 1,4-dihydropyridine chess of calcium-channel blockers, has proved to influence the calcium metabolism of neurons. this review focuses on the results of recent studies on the role of nimodipine in both the central and peripheral nervous system, during or after events that threaten the integrity or function of ... | 1990 | 2074438 |
| [the impact of psychological stress on somatic and biochemical parameters in an atypical sports discipline]. | the subject of our interest was to investigate the response of the organism to mental strain in an atypical sports discipline. to this end we examined 10 chess players. we assessed their pulse rate at rest, before a contest, immediately after the contest and after 5 mins. recovery. statistical evaluation revealed an increased heart rate before the contest, as compared with rest at a level of significance of 0.01; after the contest as compared with the status before the contest at a level of 0.02 ... | 1990 | 2289280 |
| rook's tour representation of the genetic code. | disconnected recurrences of the stop signal, serine and arginine appear in the original representation of the genetic code, and of the stop signal, arginine, serine and leucine in the codon ring representation. to achieve connectedness along with structural continuity, a rook's tour representation is presented here. on the basis of structural similarities and disparities in their side groups, each of the 20 amino acids is associated with a domain comprised of from one to six contiguous squares o ... | 1991 | 1958894 |
| cognitive advantage in sport: the nature of perceptual structures. | to extend and clarify the nature of the perceptual processes used by sport experts to perceive schematic sport information, two experiments used schematic football diagrams that varied in structure (structured vs. unstructured) and complexity (complex vs. easy). the primary objective was to examine and characterize the nature of the perceptual structures (chunks) that are initially encoded, stored, and subsequently retrieved. in experiment 1, compared with nonexperts, experts recalled larger per ... | 1991 | 1862820 |
| factor structure of temperament in the third year of life. | the hypothesis that the nine dimensions of temperament defined by chess and thomas (1984) would emerge in a principal components analysis of maternal descriptions of 763 two-year-olds in a longitudinal study was not confirmed. the only component that bore any resemblance to the a priori dimensions of temperament proposed by chess and thomas was the sixth component--defining rhythmicity--in a promax rotation. a higher order rotation to a two-factor solution produced components representing sociab ... | 1991 | 1757784 |
| combined chemical-shift and phase-selective imaging for fat suppression: theory and initial clinical experience. | incomplete fat suppression with a chemical-shift-selective (chess) or phase-selective (dixon) technique is partially due to the olefinic fat component, which precesses at the same frequency as water. the authors developed a new method of fat suppression--the opposed-fat saturation (op-es) sequence--that combines both techniques to obtain superior fat saturation. fat suppression was verified in phantom studies, which showed that the chess portion can eliminate most of the aliphatic fat signal exc ... | 1991 | 1887054 |
| the 'sicilian gambit'. a new approach to the classification of antiarrhythmic drugs based on their actions on arrhythmogenic mechanisms. the task force of the working group on arrhythmias of the european society of cardiology. | the queen's gambit is an opening move in chess that provides a variety of aggressive options to the player electing it. this report represents a similar gambit (the 'sicilian gambit') on the part of a group of basic and clinical investigators who met in taormina, sicily, to consider the classification of antiarrhythmic drugs. paramount to their considerations were (1) dissatisfaction with the options offered by existing classification systems for inspiring and directing research, development and ... | 1991 | 1723682 |
| the sicilian gambit. a new approach to the classification of antiarrhythmic drugs based on their actions on arrhythmogenic mechanisms. task force of the working group on arrhythmias of the european society of cardiology. | the queen's gambit is an opening move in chess that provides a variety of aggressive options to the player electing it. this report represents a similar gambit (the sicilian gambit) on the part of a group of basic and clinical investigators who met in taormina, sicily to consider the classification of antiarrhythmic drugs. paramount to their considerations were 1) dissatisfaction with the options offered by existing classification systems for inspiring and directing research, development, and th ... | 1991 | 1717173 |
| aspects of skilled imagery in blindfold chess. | blindfold chess is a very good task environment to study skill-based mental images or skilled imagery. seven experiments providing information on different aspects of skilled imagery in blindfold chess were made. in all experiments very clear skill-related differences in the operation of chess-specific materials could be found. it will also be argued that chess-specific patterns or chunks are important in skilled subjects' construction of images and the operation of these images relies on the co ... | 1991 | 1950637 |
| the canadian hospital executive simulation system (chess). | the canadian hospital executive simulation system (chess) is a computer-based management decision-making game designed specifically for canadian hospital managers. the paper begins with an introduction on the development of business and health services industry-specific simulation games. an overview of chess is provided, along with a description of its development and a discussion of its educational benefits. | 1991 | 10109530 |
| structure of bovine prothrombin fragment 1 refined at 2.25 a resolution. | the structure of bovine prothrombin fragment 1 has been refined at 2.25 a resolution using high resolution measurements made with the synchrotron beam at chess. the synchrotron data were collected photographically by oscillation methods (r-merge = 0.08). these were combined with lower order diffractometer data for refinement purposes. the structure was refined using restrained least-squares methods with the program prolsq to a crystallographic r-value of 0.175. the structure includes 105 water m ... | 1991 | 1856869 |
| structure of the oxidized long-chain flavodoxin from anabaena 7120 at 2 a resolution. | the structure of the long-chain flavodoxin from the photosynthetic cyanobacterium anabaena 7120 has been determined at 2 a resolution by the molecular replacement method using the atomic coordinates of the long-chain flavodoxin from anacystis nidulans. the structure of a third long-chain flavodoxin from chondrus crispus has recently been reported. crystals of oxidized a. 7120 flavodoxin belong to the monoclinic space group p2(1) with a = 48.0, b = 32.0, c = 51.6 a, and beta = 92 degrees, and one ... | 1992 | 1303762 |
| chess: a computer-based system for providing information, referrals, decision support and social support to people facing medical and other health-related crises. | chess (the comprehensive health enhancement support system) is an interactive, computer-based system to support people facing health-related crises or concerns. chess provides information, referral to service providers, support in making tough decisions and networking to experts and others facing the same concerns. chess will improve access to health and human services for people who would otherwise face psychological, social, economic or geographic barriers to receiving services. chess has deve ... | 1992 | 1482860 |
| carbon-13 chemical shift imaging of [1-13c] glucose under metabolism in the rat head in vivo. | carbon-13 chemical shift images (metabolic maps) of [1-13c] glucose in the heads of rats were obtained and compared with proton images of the same rats in terms of signal allocation. wistar rats were kept awake or anesthetized. [1-13c] glucose was injected intravenously in a dose of 1 g per kg of body weight. the head of the wistar rat was placed on or into circular coils. carbon-13 images were obtained using a 7.05 tesla system. a simple spin echo sequence was used with a chemical shift selecti ... | 1992 | 1509107 |
| hemispheric specialization for skilled perceptual organization by chessmasters. | the right cerebral hemisphere may be relatively specialized for parsing simple visual stimuli according to default rules, such as the gestalt laws of perceptual organization, whereas the left cerebral hemisphere may be relatively specialized for overriding such default rules. we extend this model to 'semantically rich domains' by performing a divided-visual-field experiment on 16 chessmasters. such subjects are able to recall and recognize complex chess positions by chunking the basic elements o ... | 1992 | 1738469 |
| "chess-board pattern" spatial modulation of magnetization. assessment of myocardial function. | heart motion is a complex combination of translation, rotation, and concentric contraction. evaluation of these complex motions has been difficult using conventional slice-selective methods. noninvasive tagging of the heart has been obtained by the use of slice-selective radiofrequency pulses. through spatial modulation of the magnetization the entire image can be labeled in different patterns. two new pulse sequences are presented, giving a chess-board like spatial modulation. these pulse seque ... | 1992 | 1731837 |
| children and chess expertise: the role of calibration. | three studies of calibration are reported. calibration refers to the accuracy with which one can predict one's own performance. in the first study child chess players, non-chess playing parents, and statistics students were asked to predict chances of winning chess games against hypothetical opponents. these subjective probabilities were compared to the actual probabilities, based on the elo rating system. better players' predictions were better calibrated. confidence and ratings are negatively ... | 1992 | 1603888 |
| learned helplessness in chess players: the importance of task similarity and the role of skill. | the effects of noncontingency between subjects' responses and outcomes were examined with respect to treatment-and-posttest similarity and skill in the task. the experimental design consisted of three groups. the first group had to solve chess problems with objective solutions and received veridical feedback; each member of the second group faced problems with no objective solutions, and received the same feedback as the member of the first group he was yoked with, but without any control on it; ... | 1992 | 1603887 |
| error in chess: the apperception-restructuring view. | five protocol-analysis experiments with tactical, endgame, and strategic positions were conducted to study cognitive errors in chess players' thinking. it will be argued that chess players' errors can be only partially explained in terms of unspecified working-memory overload, because the working-memory loads caused by the solution paths are usually small. it is therefore necessary to consider apperceptive mechanisms also, as these control information intake. subjects fail either because they ar ... | 1992 | 1603886 |
| the council for health and environmental safety of soils. | the council for health and environmental safety of soils (chess) was organized in 1987 to develop a consensus soil risk assessment methodology to be used as a framework for establishing standards for soil contamination to protect the environment and public health. the wide range of contaminating substances of possible health concern in soil is affecting land use and development, causing excessive economic expenditures, and the regulatory approaches for control are disperse. the international soc ... | 1992 | 1293644 |
| guess who made me a medicare cheat. | 1992 | 10121558 | |
| why cheat? | 1992 | 1614520 | |
| memory recall in a process control system: a measure of expertise and display effectiveness. | previous research has shown that memory-recall performance is correlated with domain expertise. in this study, a process control system was selected as a vehicle for conducting research on memory recall. the primary purposes of the present work were to determine if the classic expertise effects originally obtained in chess generalize to this novel domain and to evaluate the validity of memory recall as a measure of display effectiveness. experts and novices viewed dynamic event sequences showing ... | 1992 | 1495398 |
| cloning and expression of an embryo-specific mrna up-regulated in hydrated dormant seeds. | dormant seeds do not germinate when imbibed in water even when conditions are favorable for germination. these hydrated seeds remain viable, but growth-arrested for weeks due to unknown restrictions within the embryo. as a model system for the study of the molecular processes occurring in dormant seeds, we have chosen to examine gene expression in bromus secalinas, a grass species that produces seeds with high levels of embryonic dormancy. using differential screening for mrnas present in hydrat ... | 1992 | 1377965 |
| the general intelligence and spatial abilities of gifted young belgian chess players. | thirty-three tournament-level young belgian chess players aged 8 to 13 were tested with the french wisc (wechsler intelligence scale for children). the mean full scale iq = 121, verbal iq = 109 and performance iq = 129. the results suggest that a high level of general intelligence and of spatial ability are necessary to achieve a high standard of play in chess. the high spatial ability of these young chess players suggested by the high performance iqs may go some way towards explaining why males ... | 1992 | 1611410 |
| working memory. | the term working memory refers to a brain system that provides temporary storage and manipulation of the information necessary for such complex cognitive tasks as language comprehension, learning, and reasoning. this definition has evolved from the concept of a unitary short-term memory system. working memory has been found to require the simultaneous storage and processing of information. it can be divided into the following three subcomponents: (i) the central executive, which is assumed to be ... | 1992 | 1736359 |
| fat suppression with an improved selective presaturation pulse. | chemical shift selective (chess) imaging is an efficient and easily implemented technique for suppression of the fat component in clinical images. a gaussian pulse is widely used as the selective presaturation pulse in the chess technique. however, a gaussian pulse hardly performs well even if the magnetic field is very carefully shimmed. in clinical applications, the fat and water peaks are always inhomogeneously broadened. we have analyzed the performance of the gaussian pulse in the presence ... | 1992 | 1545681 |
| chess expertise and memory for chess positions in children and adults. | this paper presents a replication and extension of chi's (1978) classic study on chess expertise. a major outcome of chi's research was that although adult novices had a better memory span than child experts, the children showed better memory for chess positions than the adults. the major goal of this study was to explore the effects of the following task characteristics on memory performance: (1) familiarity with the constellation of chess pieces (i.e., meaningful versus random positions) and ( ... | 1993 | 8301242 |
| crystal structure of tgf-beta 2 refined at 1.8 a resolution. | the crystal structure of tgf-beta 2 has been refined using data collected with synchrotron radiation (chess) to 1.8 a resolution with a residual r (= sigma magnitude of fo-magnitude of fc/sigma magnitude of fo) factor of 17.3%. the model consists of 890 protein atoms from all 112 residues and 59 water molecules. the monomer of tgf-beta 2 assumes a rather extended conformation and lacks a well-defined hydrophobic core. surface accessibility calculations show only 44% of the nonpolar surface is bu ... | 1993 | 8265565 |
| a multiparametric data analysis showing the potential of localized proton mr spectroscopy of the brain in the metabolic characterization of neurological diseases. | we conducted an extended clinical evaluation of localized proton magnetic resonance spectroscopy (mrs) of the brain, performed on various brain diseases using short stimulated echo times. pathologies studied were mainly multiple sclerosis, stroke, leukoaraiosis, aids-related leukoencephalopathies and glial tumors. other miscellaneous pathologies were also studied. magnetic resonance examination of the brain was conducted on a siemens magnetom sp63 (equipped with a 1.5 t magnet). localized proton ... | 1993 | 8229060 |
| facultative non-mutualistic behaviour by an "obligate" mutualist: "cheating" by yucca moths. | the interaction between yucca moths (tegeticula spp., incurvariidae) and yuccas (yucca spp., agavaceae) is an obligate pollination/seed predation mutualism in which adult female yucca moths pollinate yuccas, and yucca moth larvae feed on yucca seeds. in this paper we document that individual yucca moths, which are capable of acting as mutualists, facultatively "cheat" by ovipositing in yucca pistils without attempting to transfer pollen. additionally, a high proportion of flowers are unlikely to ... | 1993 | 28314029 |
| reconstructive remembering of the scientific literature. | in this paper we investigate the role of reconstructive memory in citation errors that occur in the scientific literature. we focus on the case of de groot's (1946) studies of the memory for chess positions by chess experts. previous work has shown that this research is very often cited incorrectly. in experiment 1 we show that free recall of this work by research psychologists replicates most of the errors found in the published literature. experiment 2 shows that undergraduates reading a corre ... | 1993 | 8432092 |
| seizures induced by music. | musicogenic epilepsy is a rare disorder. much remains to be learned about the electroclinical features. this report describes a patient who has been followed at our institution for 17 years, and was investigated with long-term telemetered simultaneous video-eeg recordings. she began to have seizures at the age of 10 years. she experienced complex partial seizures, often preceded by elementary auditory hallucination and complex auditory illusion. the seizures occurred in relation to singing, list ... | 1993 | 24487138 |
| towards the measurement of ideal data for macromolecular crystallography using synchrotron sources. | synchrotron radiation has been used extensively to overcome a variety of technical challenges involved in data collection from macromolecular crystals. the next generation of such sources offer a higher brilliance at much shorter wavelengths than hitherto available. hence, the quality of x-ray diffraction data from crystals of biological macromolecules will be further improved in terms of reduced systematic and random errors, in conjunction with a very high degree of completeness of, and multipl ... | 1993 | 15299553 |
| [temperament, psychological development and psychopathology. correlations, explanatory models and forms of intervention]. | a return to temperamental concepts characterizes contemporary child psychology in the united states. the word "temperament" refers to early developing differences in reactivity and behavioral style. temperament research focuses on the origins, the stability, the dimensionality and the psychopathological significance of such differences. this article especially emphasizes the latter. associations between temperament and psychopathology are noted. chess' and thomas' goodness of fit-model is presen ... | 1993 | 8511953 |
| [physician satire and patient scorn in hans sachs' old nürnberg and the physicians]. | among the best poems of hans sachs quite a few describe patient-physician relationships in 16th century nuremberg. these poems offer a vivid impression of the technical aspects as well as of the social context of medical treatment at the time. hans sachs ridiculed the doctors and their patients, implying that everybody attempted to cheat the other side, and he provides evidence of a great influence of charlatans on the country population. the poems of hans sachs are extraordinary pieces or art; ... | 1993 | 8310473 |
| selective 19f mr imaging of 5-fluorouracil and alpha-fluoro-beta-alanine. | a 19f mr chemical shift imaging (csi) technique is presented which enables selective imaging of the antineoplastic drug 5-fluorouracil (5-fu) and its major catabolite alpha-fluoro-beta-alanine (fbal). the csi sequence employs a chemical shift selective (chess) saturation pulse to suppress either the 5-fu or the fbal resonance before the other component of the two-line 19f mr spectrum is measured. because the transmitter frequency can always be set to the larmor frequency of the 19f resonance to ... | 1993 | 8271906 |
| human immunodeficiency virus. playing chess with reverse transcriptase. | 1993 | 7679776 | |
| conversion of galnac beta(1-4)glcnac beta-ome into galnac beta (1-4)-[fuc alpha(1-3)]glcnac beta-ome using human milk alpha 3/4-fucosyltransferase. synthesis of a novel terminal element in glycoprotein glycans. | incubation of galnac beta(1-4)glcnac beta-ome with gdp-fuc in the presence of human milk alpha 3/4-fucosyltransferase resulted in the formation of galnac beta(1-4)[fuc alpha(1-3)]glcnac beta-ome. under conditions that led to complete alpha 3-fucosylation of gal beta(1-4)glcnac beta-oet, galnac beta(1-4)glcnac beta-ome was fucosylated for more than 85%. for the identification of the isolated fucosylated products one- and two-dimensional 1h-nmr spectroscopy was applied. in vacuo molecular dynamics ... | 1993 | 7901053 |
| [the effect of the in-vitro interaction of antibacterial preparations on brucella melitensis]. | the character of drug interaction in 18 various combinations of sisomicin, amikacin, gentamicin, cefotaxime, doxycycline, trimethoprim and nitroxaline was studied by the chess board method with respect to 25 strains of brucella melitensis. the synergistic effect with respect to the majority of the cultures was observed with the use of the combinations of gentamicin, amikacin or sisomicin with doxycycline. the combinations of the aminoglycosides with cefotaxime and sisomicin or gentamicin with ri ... | 1993 | 8085903 |
| will hiv-positive people use an interactive computer system for information and support? a study of chess in two communities. | a study of use of an interactive computer system (chess--comprehensive health enhancement support system) by hiv-positive people was conducted in madison and milwaukee during fall 1992 and winter 1993. computers were placed in homes, and use monitored by the computer. results showed that the system was used heavily by both samples, and that gender (women used it more) age, (younger used it more), living arrangements (those living alone used it more), and need for health care information (those w ... | 1993 | 8130465 |
| [chlorhexidine digluconate/chlorocresol combination. in vitro study of interactions observed against potential cutaneous strains]. | the interaction type of chlorhexidine digluconate/chlorocresol association (foaming solution dc 102/1, laboratoires pierre fabre médicament) have been studied according to the chess-board method, on microplate, by determining mbc (minimal bactericidal concentrations) (or mfc (minimal fungicidal concentrations)) adjusted to t 72-150 afnor norm (dilution-neutralization, contact 5 mn) and computation of fbc (or ffc) index. trials were carried out against 18 hospital strains (staphylococcus epidermi ... | 1993 | 8233635 |
| in vivo 1h chemical shift imaging of silicone implants. | in order to study the aging process (i.e., silicone migration, fat infiltration) of silicone (polydimethylsiloxane, pdms) based biomaterials in living subjects by nmr imaging, a hybrid 1h selective excitation and saturation chemical shift imaging technique (ir/chess-csse) has been developed. this sequence allows selective mapping of the distribution of silicone protons in vivo, while suppressing the contributions of fat and water. our results indicate that a combined inversion recovery and chess ... | 1993 | 8505902 |
| treatment of septic shock with human monoclonal antibody ha-1a. a randomized, double-blind, placebo-controlled trial. chess trial study group. | to compare the effectiveness of 100 mg of ha-1a and placebo in reducing the 14-day all-cause mortality rate in patients with septic shock and gram-negative bacteremia in the centocor: ha-1a efficacy in septic shock (chess) trial, and to assess the safety of 100 mg of ha-1a given to patients with septic shock who did not have gram-negative bacteremia. | 1994 | 8198341 |
| the use and impact of a computer-based support system for people living with aids and hiv infection. | chess (the comprehensive health enhancement support system) is an interactive, computer-based system to support people facing aids/hiv infection and other health-related crises or concerns. chess provides information, referral to service providers, support in making tough decisions and networking to experts and others facing the same concerns. chess is designed to improve access to health and human services for people who would otherwise face psychological, social, economic or geographic barrier ... | 1994 | 7949999 |
| [words]. | society and our modern world are changing, and so does our language and its words, those carriers of our different trains of thought. heavy or lightweight, last but not least, simple or pompous, easygoing or sophisticated, words can fail and cheat us, we can play with them or simply use them, they live their own life but we cannot live without them. they disappear or reappear, they sometimes don't have the same meaning for our patients as for us, and we have to strive and hear what they say and ... | 1994 | 7827641 |
| x-ray diffraction measurements of the extensibility of actin and myosin filaments in contracting muscle. | we have used a small angle scattering system assembled on the high flux multipole wiggler beam line at chess (cornell) to make very accurate spacing measurements of certain meridional and layer-line reflections from contracting muscles. during isometric contraction, the actin 27.3 a reflection increases in spacing from its resting value by approximately 0.3%, and other actin reflections, including the 59 and 51 a off-meridional reflections, show corresponding changes in spacing. when tension is ... | 1994 | 7696481 |
| mapping of abscisic acid responsive genes and vp1 to chromosomes in wheat and lophopyrum elongatum. | the plant hormone abscisic acid (aba) affects developmental and physiological processes that can impact crop production. these processes include germination, environmental stress responses in vegetative tissue, embryo maturation, and dormancy. identification and molecular tagging of aba-responsive genes, as well as the vp1 gene, required for aba sensitivity, may be valuable in developing breeding strategies designed for manipulating aba-regulated traits. using aneuploid genetic stocks and alien ... | 1994 | 18470064 |
| chess: an interactive computer system for women with breast cancer piloted with an under-served population. | the comprehensive health enhancement support system (chess) is an interactive computer system containing information, social support and problem solving tools. it was developed with intensive input from potential users through needs-assessment surveys and field testing. chess had previously been used by women in the middle and upper socio-economic classes with high school and college education. this article reports on the results of a pilot study involving eight african-american women with breas ... | 1994 | 7949998 |
| changes in the treatment of abused children: a retrospective review of a practice. | using the population of sexually abused children from three periods of my practice, i have described changes in my practice of play therapy over the past 30 years. these changes have come about in part due to the pioneering work of psychiatrists specializing in studies of development in children not designated as emotionally disturbed or mentally ill (chess and thomas, 1986; greenspan, 1981; winnicott, 1953, 1965, 1971) as well those who have described treatment techniques and theoretical constr ... | 1994 | 7844026 |
| psychometric properties of the children's eating attitudes test. | as interest in eating disorders has grown, there has been an increased need for psychometrically sound measures of young children's eating attitudes and behaviors. the present report examines one promising measure, the children's version of the eating attitudes test (cheat; (maloney, mcguire, & daniels. [1988]. journal of the american academy of child and adolescent psychiatry, 5, 541-543; maloney, mcguire, daniels & specker. [1989]. pediatrics, 84, 482-489). like the eat-26, (garfinkel & garner ... | 1994 | 7833961 |
| toward a structure of preschool temperament: factor structure of the temperament assessment battery for children. | much of the research and thinking in the area of childhood temperament has been guided by the structural and measurement model of thomas, chess, and colleagues. recently, researchers have called into question this structural conception and have explored the factor structure of the instruments based on the thomas and chess model. a review of the literature indicates that there are few studies at any one age level, and that much of the research is limited by small samples. the results of a large s ... | 1994 | 7965566 |
| how i learned to play chess. | 1994 | 7799267 | |
| checkmate for chess historians. | 1994 | 17787570 | |
| attitudes to food, eating and dieting behaviour in 11 and 14-year-old swedish children. | all students in grades 5 and 8 of three randomly chosen schools in uppsala (n = 236) were eligible, and 197 participated. the survey included a swedish version of the children's eating attitudes test (cheat) and a demographic and dieting questionnaire. in total, 47% of the children (girls 70%, boys 25%) wanted to be thinner and 25% had tried to lose weight. in the 5th grade, 49% of the girls reported that they wanted to be thinner and in the 8th grade 83%. fifty-three percent of the girls in the ... | 1994 | 7919751 |
| brain activity in chess playing. | 1994 | 8183339 | |
| transcripts encoding an oleosin and a dormancy-related protein are present in both the aleurone layer and the embryo of developing barley (hordeum vulgare l.) seeds. | in cereal seeds, the aleurone layer and the embryo share several characteristics, including synthesis and accumulation of lipid bodies, desiccation tolerance and dormancy. a number of balem transcripts present in both the barley aleurone layer and the embryo have been cloned by differential screening of a cdna library from aleurone layers of immature barley grains. the balem clones constitute two subgroups, one for which the transcripts are detectable in aleurone layers and embryos of developing ... | 1994 | 8180622 |
| the comprehensive health enhancement support system. | this article describes the process of using needs assessment data to develop an interactive information technology specifically designed to support patients in a health-related crisis. the comprehensive health enhancement support system (chess) is an interactive information, social support, and problem-solving system that was developed by a team at the university of wisconsin. this article looks at the program developed for breast cancer patients and their families. | 1994 | 10137606 |
| adaptive silicon monochromators for high-power insertion devices. tests at chess, esrf and hasylab. | x-ray wigglers which produce tens of kilowatts of photon power within the white beam will soon become available at third-generation sources of synchrotron radiation. insertion devices that produce several kilowatts already exist and we have used those at chess, esrf and hasylab to test adaptive 111 silicon water-jet-cooled monochromators at up to 2 kw total incident beam power. this development from earlier work at the brookhaven national synchrotron light source (nsls) uses the pressure in the ... | 1995 | 16714779 |
| [elite or cheat research units?]. | 1995 | 8681856 | |
| dieting behavior and eating attitudes in israeli children. | using an israeli school-age group, this study replicates and extends the age group of maloney et al.'s (pediatrics, 84, 482-489, 1989) study of american schoolchildren's abnormal eating attitudes and behaviors. maloney's children's eating attitudes test (cheat) and a demographic and dieting questionnaire (ddq) were given to 186 students from grades 3 to 6 and to 290 students from grades 7 to 11. in grades 3-11, 54% of students expressed a desire to lose weight and 41.6% showed behaviors aimed to ... | 1995 | 7894455 |
| chess classification of bladder-outflow obstruction. a consequence in the discussion of current concepts. | the present discussion on the natural history, growth rate pathophysiology, morbidity, and possible treatment of benign prostatic hyperplasia (bph) reinforces the need to objectify mechanical bph-induced obstruction with pressure-flow study. different methods for the quantification of bph-induced obstruction exist and the grade of simplification depends on their working mechanism. to review the limitations of the current concepts, 118 bph patients were selected for computerized pressure-flow dat ... | 1995 | 7539680 |
| chess (comprehensive health enhancement support system): an interactive computer system for women with breast cancer piloted with an underserved population. | the comprehensive health enhancement support system (chess) is an interactive computer system containing information, social support, and problem-solving tools. it was developed with intensive input from potential users through needs-assessment surveys and field testing. chess had previously been used by women in the middle and upper socioeconomic classes with high school and college education. this article reports on the results of a pilot study involving eight african-american women with breas ... | 1995 | 10143478 |
| 1h mr spectroscopy in patients with metastatic brain tumors: a multicenter study. | in a cooperative study involving six clinical mr centers, localized 1h mr spectroscopy was used to characterize untreated metastatic brain tumors (40 cases, 45 lesions). cubic volumes (3.4 or 8 cm3) filled for more than 50% by metastatic brain tissue were examined by single-voxel double spin echo mrs, by using chemical shift selective imaging (chess) pulses for water suppression and te = 135 ms. choline (cho), creatine (cr) and n-acetyl aspartate (naa) levels in brain metastases of mammary carci ... | 1995 | 7651119 |
| changes over time in academic dishonesty at the collegiate level. | recent assertions that collegiate cheating has risen dramatically have increased in frequency. we examine the possibility that these assertions are based on comparisons of studies of different behaviors with varied methodologies, and different opportunities to cheat. to assess the increase in cheating we identified a cheating behavior which had been empirically studied consistently from the early 1900s. when the percentages of students who cheated in these studies were compared across time perio ... | 1995 | 7568587 |
| adaptive silicon monochromators for high-power wigglers; design, finite-element analysis and laboratory tests. | multipole wigglers in storage rings already produce x-ray power in the range up to a few kilowatts and planned devices at third-generation facilities promise up to 30 kw. although the power density at the monochromator position is an order of magnitude lower than that from undulators, the thermal strain field in the beam footprint can still cause severe loss of performance in x-ray optical systems. for an optimized adaptive design, the results of finite-element analysis are compared with double- ... | 1995 | 16714802 |
| chemical shift imaging from simultaneous acquisition of a primary and a stimulated echo. | an imaging method is presented for obtaining chemical shift images from only one acquisition. images are acquired with the same spatial resolution as in regular spin-echo imaging. the sequence is based on the simultaneous acquisition of a spin echo and a stimulated echo in a single pass. the use of 90 degrees radiofrequency pulse flip angles results in the same proton density, t2 and t1 weighting for the two echoes. application of this sequence to chemical shift imaging is discussed for three fa ... | 1995 | 7596273 |
| long-term working memory. | to account for the large demands on working memory during text comprehension and expert performance, the traditional models of working memory involving temporary storage must be extended to include working memory based on storage in long-term memory. in the proposed theoretical framework cognitive processes are viewed as a sequence of stable states representing end products of processing. in skilled activities, acquired memory skills allow these end products to be stored in long-term memory and ... | 1995 | 7740089 |
| non-dominant dorsal-prefrontal activation during chess problem solution evidenced by single photon emission computerized tomography (spect). | expert chess players can recall meaningful chess positions with extraordinary precision in comparison with inexperienced players. we hypothesized, therefore, that their mental performance during chess deliberation could be an appropriate target for single photon emission computerized tomography (spect) studies. we studied cerebral activation with 1110 mbq 99mtc-bicisate spect in five expert male chess players during mental solution of a complex chess problem. region of interest (roi) analysis, i ... | 1995 | 8552313 |
| development and psychometric validation of the mental, physical, and spiritual well-being scale. | due to the growing interest in holistic health and well-being, the mental, physical, and spiritual well-being scale was developed. this well-being scale has 30 items and incorporates mental, physical, and spiritual subscales. an initial set of items was developed and 186 university students responded to these. an exploratory factor analysis was conducted using principal components analysis with varimax rotation (n=100) to reduce the number of items in the scale. three factors were extracted base ... | 1995 | 8559898 |
| the answer is, "no! chess for fun". | 1995 | 7476828 | |
| cleaning symbiosis as an evolutionary game: to cheat or not to cheat? | cleaning symbiosis is an apparently mutualistic relationship, occurring in diverse taxa, in which cleaners remove ectoparasites from the body of their clients. here its evolution is explored with a simple game theory model in which both participants play against each other using either honest or cheating strategies. honest clients pose for cleaners and have their ectoparasites removed, cheating clients eat the cleaners. honest cleaners eat their clients' ectoparasites, cheating cleaners feed mai ... | 1995 | 9441815 |
| controlled comparison of the effects and abrupt discontinuation of buspirone and lorazepam. | 1. the purpose of this study was to compare the effects and abrupt discontinuation of buspirone 15 or 20 mg tid and lorazepam 3 or 4 mg tid following 8 weeks of treatment. a total of 43 outpatients with generalized anxiety disorder were included in the study and 39 entered the withdrawal phase. 2. clinical assessments were performed at baseline, 2, 4, 6 and 8 weeks (active phase) and after 9 and 10 weeks (withdrawal phase). these included the hamilton anxiety scale, the visual analogue scale, th ... | 1995 | 8588056 |
| mapping the biodistribution and catabolism of 5-fluorouracil in tumor-bearing rats by chemical-shift selective 19f mr imaging. | a chemical-shift selective (chess) 19f mr imaging technique was used to map selectively the antineoplastic drug 5-fluorouracil (5-fu) and its major catabolite alpha-fluoro-beta-alanine (fbal) in tumor-bearing rats. the pulse sequence employed a chess rf saturation pulse to suppress either the 5-fu or the fbal resonance before the other component in the two-line 19f mr spectra was measured. selective 5-fu and fbal images with a spatial resolution of 10 x 10 x 15 mm3 (1.5 ml) were obtained in 40 m ... | 1995 | 7500866 |
| fat suppression at 7t using a surface coil: application of an adiabatic half-passage chemical shift selective radiofrequency pulse. | the selective suppression of fat using chemical shift selective (chess) sinc, gaussian presaturation, or binomial radiofrequency pulses are widely implemented techniques in magnetic resonance imaging. for applications wherein transmitter coils that generate inhomogeneous magnetic (b1), fields are used (e.g., surface coils), adiabatic radiofrequency pulses that are less susceptible to spatial variations in b1 amplitude will improve the spatial homogeneity of spin excitation angle. herein, we desc ... | 1995 | 8748500 |
| recall of random and distorted chess positions: implications for the theory of expertise. | this paper explores the question, important to the theory of expert performance, of the nature and number of chunks that chess experts hold in memory. it examines how memory contents determine players' abilities to reconstruct (1) positions from games, (2) positions distorted in various ways, and (3) random positions. comparison of a computer simulation with a human experiment supports the usual estimate that chess masters store some 50,000 chunks in memory. the observed impairment of recall whe ... | 1996 | 8757497 |
| [reflex epilepsy with seizures induced by mental calculation, playing chess and scrabble]. | reflex seizures induced by higher mental activity is rare. we report the case of a young man with myoclonic jerks and generalized tonico-clonic convulsion precipitated by calculation, playing chess and scrabble. routine eeg, including hyperventilation and photic stimulation, showed no abnormality. tests stimulation procedures, including spatial tasks, induced focal and generalized eeg spike-wave complex and myoclonic jerks. valproate was effective in reducing epileptic seizures during a follow-u ... | 1996 | 8761618 |