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https://www.readbyqxmd.com/read/28346313/population-pharmacokinetics-of-gemcitabine-and-dfdu-in-pancreatic-cancer-patients-using-an-optimal-design-sparse-sampling-approach
#1
Cindy Serdjebi, Florence Gattacceca, Jean-François Seitz, Francine Fein, Johan Gagnière, Eric François, Abakar Abakar-Mahamat, Gael Deplanque, Madani Rachid, Bruno Lacarelle, Joseph Ciccolini, Laetitia Dahan
BACKGROUND: Gemcitabine remains a pillar in pancreatic cancer treatment. However, toxicities are frequently observed. Dose adjustment based on therapeutic drug monitoring might help decrease the occurrence of toxicities. In this context, this work aims at describing the pharmacokinetics (PK) of gemcitabine and its metabolite dFdU in pancreatic cancer patients and at identifying the main sources of their PK variability using a population pharmacokinetics approach, despite a sparse sampled-population and heterogeneous administration and sampling protocols...
March 24, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28346118/social-and-contextual-constraints-on-embodied-perception
#2
Simone Schnall
A number of papers have challenged research on physiological and psychological influences on perception by claiming to show that such findings can be explained by nonperceptual factors such as demand characteristics. Relatedly, calls for separating perception from judgment have been issued. However, such efforts fail to consider key processes known to shape judgment processes: people's inability to report accurately on their judgments, conversational dynamics of experimental research contexts, and misattribution and discounting processes...
March 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
https://www.readbyqxmd.com/read/28346013/the-physiology-of-blood-loss-and-shock-new-insights-from-a-human-laboratory-model-of-hemorrhage
#3
Alicia M Schiller, Jeffrey T Howard, Victor A Convertino
The ability to quickly diagnose hemorrhagic shock is critical for favorable patient outcomes. Therefore, it is important to understand the time course and involvement of the various physiological mechanisms that are active during volume loss and that have the ability to stave off hemodynamic collapse. This review provides new insights about the physiology that underlies blood loss and shock in humans through the development of a simulated model of hemorrhage using lower body negative pressure. In this review, we present controlled experimental results through utilization of the lower body negative pressure human hemorrhage model that provide novel insights on the integration of physiological mechanisms critical to the compensation for volume loss...
April 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28345686/-effectiveness-of-physical-activity-intervention-at-workplace
#4
REVIEW
Marzena Malińska
A physical activity is a key factor contributing to the improvement and maintenance of one's general health. Although this issue is by no means limited to the workplace, it is precisely the work environment that can provide the basis for keeping and reinforcing more health-conscious attitudes and lifestyles, including programs promoting a physical activity. The paper presents an analysis of the literature on the effectiveness of physical activity intervention at the workplace. Particular attention is paid to the impact of the physical activity programs on musculoskeletal disorders, absenteeism, work ability, physical capacity and body weight of the participants...
March 24, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/28345536/tuning-the-work-function-of-stepped-metal-surfaces-by-adsorption-of-organic-molecules
#5
Yingda Jiang, Jingtai Li, Guirong Su, Nicola Ferri, Wei Liu, Alexandre Tkatchenko
Understanding the binding mechanisms for aromatic molecules on transition-metal surfaces, especially with defects such as vacancies, steps, and kinks, is a major challenge in designing functional interfaces for organic devices. One important parameter in the performance of organic/inorganic devices is the barrier of charge carrier injection. In case of a metallic electrode, tuning the electronic interface potential or the work function for electronic level alignment is crucial. Here, we use density-functional theory (DFT) calculations with van der Waals (vdW) interactions treated with both screened pairwise and many-body dispersion (MBD) methods, to systematically study the interactions of benzene with a variety of stepped surfaces...
March 27, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28345535/photoactivated-processes-in-optical-fibers-generation-and-conversion-mechanisms-of-twofold-coordinated-si-and-ge-atoms
#6
Luigi Giacomazzi, Layla Martin-Samos, Aziz Boukenter, Youcef Ouerdane, Sylvain Girard, Antonino Alessi, Nicolas Richard, Stefano de Gironcoli
In this work we present an extensive investigation of nanoscale physical phenomena related to oxygen-deficient centers (ODC) in silica and Ge-doped silica by means of first-principles calculations, including nudged-elastic band (NEB), electron paramagnetic resonance (EPR) parameters calculations, and many-body perturbation theory (GW and Bethe-Salpeter Equation) techniques. We show that by neutralizing positively charged oxygen monovacancies we can obtain model structures of twofold Si and Ge defects of which the calculated absorption spectra and singlet-to-triplet transitions are in excellent agreement with the experimental optical absorption and photo-luminescence data...
March 27, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28345371/ewma-document-negative-pressure-wound-therapy
#7
Jan Apelqvist, Christian Willy, Ann-Mari Fagerdahl, Marco Fraccalvieri, Malin Malmsjö, Alberto Piaggesi, Astrid Probst, Peter Vowden
1. Introduction Since its introduction in clinical practice in the early 1990's negative pressure wounds therapy (NPWT) has become widely used in the management of complex wounds in both inpatient and outpatient care.(1) NPWT has been described as a effective treatment for wounds of many different aetiologies(2,3) and suggested as a gold standard for treatment of wounds such as open abdominal wounds,(4-6) dehisced sternal wounds following cardiac surgery(7,8) and as a valuable agent in complex non-healing wounds...
March 1, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/28344846/beating-obesity-factors-associated-with-interest-in-workplace-weight-management-assistance-in-the-mining-industry
#8
Tamara D Street, Drew L Thomas
BACKGROUND: Rates of overweight and obese Australians are high and continue to rise, putting a large proportion of the population at risk of chronic illness. Examining characteristics associated with preference for a work-based weight-loss program will enable employers to better target programs to increase enrolment and benefit employees' health and fitness for work. METHODS: A cross-sectional survey was undertaken at two Australian mining sites. The survey collected information on employee demographics, health characteristics, work characteristics, stages of behavior change, and preference for workplace assistance with reaching a healthy weight...
March 2017: Safety and Health At Work
https://www.readbyqxmd.com/read/28344839/associations-between-body-fat-percentage-and-fitness-among-police-officers-a-statewide-study
#9
John M Violanti, Claudia C Ma, Desta Fekedulegn, Michael E Andrew, Ja K Gu, Tara A Hartley, Luenda E Charles, Cecil M Burchfiel
BACKGROUND: Police work is generally sedentary although there may be situations that require physical endurance and strength, such as foot chases and arresting suspects. Factors such as excessive body fat can impede an officer's physical ability to deal with such occurrences. Our objective was to examine associations between officers' body fat percentage (BF%) and performance on a standardized fitness protocol. METHODS: Data were obtained from fitness screening among 1,826 male and 115 female officers in a large US police agency...
March 2017: Safety and Health At Work
https://www.readbyqxmd.com/read/28344742/psychophysiological-tracking-of-a-female-physique-competitor-through-competition-preparation
#10
Brandon J Rohrig, Robert W Pettitt, Cherie D Pettitt, Todd L Kanzenbach
Natural physique competitions are based on subjective judgments of how a competitor appears on show day. Prior to competition, there is a prolonged dieting phase referred to as contest preparation. The primary goal is to reduce body fat levels while maintaining skeletal muscle mass. The study tracked the physiological and psychological changes for a 24 year old female preparing for a physique competition. PURPOSE: The study was conducted to describe the physiological and psychological changes of a female physique competitor who engages in long-term contest preparation...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28343713/workplace-violence-against-women-nurses-working-in-two-public-sector-hospitals-of-lahore-pakistan
#11
Sara Rizvi Jafree
BACKGROUND: Cultural and structural forces help sustain workplace violence (WPV) against feminized professions like nursing in Pakistan. PURPOSE: The purpose of this study was to identify the prevalence and patterns of workplace violence (WPV) against women nurses (more than 95% of entire nursing population) in two hospitals of Pakistan. METHODS: A standardized international survey developed by the World Health Organization was used to collect cross-sectional data...
January 19, 2017: Nursing Outlook
https://www.readbyqxmd.com/read/28343279/the-independent-influences-of-heat-strain-and-dehydration-upon-cognition
#12
Anne M J van den Heuvel, Benjamin J Haberley, David J R Hoyle, Nigel A S Taylor, Rodney J Croft
PURPOSE: Many researchers have addressed the potential effects of hyperthermia and dehydration on cognition, often revealing contradictory outcomes. A possible reason for this inconsistency is that experiments may have been inadequately designed for such effects. In this study, the impact of hyperthermia, dehydration and their combination on cognition were evaluated in eight young males, after accounting for a range of experimental limitations. METHODS: Passive heating and thermal clamping at two mean body temperatures (36...
March 25, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28343269/neophobia-is-negatively-related-to-reversal-learning-ability-in-females-of-a-generalist-bird-of-prey-the-chimango-caracara-milvago-chimango
#13
Jorgelina María Guido, Laura Marina Biondi, Aldo Ivan Vasallo, Rubén Nestor Muzio
In an ever-changing environment, the ability to adapt choices to new conditions is essential for daily living and ultimately, for survival. Behavioural flexibility allows animals to maximise survival and reproduction in novel settings by adjusting their behaviour based on specific information and feedback acquired in their current environments. However, a growing body of evidence indicates that an individual's personality type can limit the extent to which the individual might behave flexibly, by influencing the way an individual pays attention to novelty and how much information it collects and stores, which in turn affects the individual's decision-making and learning process...
March 25, 2017: Animal Cognition
https://www.readbyqxmd.com/read/28343212/suicide-case-with-multiple-injuries-with-sharp-objects
#14
Валентина В Черняк, Александр Е Девяткин, Галия М Мустафина, Артём Г Никифоров
The work of forensic - medical expert examination of the corpse at the place of its discovery and further research in the morgue often there are certain difficulties associated with the solution of a number of issues, including the establishment of a kind of death. Bringing the case demonstrates that, during the initial examination of the corpse to the place of its discovery the presence of multiple injuries on the body of a different nature, as a rule, initially suggest investigators to suspect that the murder occurred...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343140/sequence-encoded-material-properties-dictate-the-structure-and-function-of-nuclear-bodies
#15
REVIEW
Stephanie C Weber
Concomitant with packaging the genome, the cell nucleus must also spatially organize the nucleoplasm. This complex mixture of proteins and nucleic acids partitions into a variety of phase-separated, membraneless organelles called nuclear bodies. Significant progress has been made in understanding the relationship between the material properties of nuclear bodies and their structural and functional consequences. Furthermore, the molecular basis of these condensed phases is beginning to emerge. Here, I review the latest work in this exciting field, highlighting recent advances and new challenges...
March 23, 2017: Current Opinion in Cell Biology
https://www.readbyqxmd.com/read/28343116/health-and-weight-gender-specific-linkages-under-heterogeneity-interdependence-and-resilience-factors
#16
Olaf Hübler
Many studies have shown that obesity is a serious health problem for our society. Empirical analyses often neglect a number of methodological issues and relevant influences on health. This paper investigates empirically whether neglecting these items leads to systematically different estimates. Based on data from the German Socio-Economic Panel, this study derives the following results. (1) Many combinations of weight and height lead to the same health status. (2) The relationship between health and body mass index is nonlinear...
March 11, 2017: Economics and Human Biology
https://www.readbyqxmd.com/read/28342618/a-realist-synthesis-of-social-connectivity-interventions-during-transition-to-parenthood-the-value-of-relationships
#17
Claudine T Bennett, Judy L Buchan, Nicole Letourneau, Stuart G Shanker, Anne Fenwick, Brenda Smith-Chant, Cyndi Gilmer
BACKGROUND: Social connections are important during the transition to parenthood. A wide body of literature suggests that these connections enhance health and contribute to wellbeing. In the case of parents and families, social connections can influence child development. Nurses and public health agencies are in a unique position to advocate for resources and approaches to enhance social connectivity for parents during this important life transition. OBJECTIVES: The aim of this review was to identify the universal social connectivity interventions that work, and the conditions that foster social connections for parents and enhance child development...
April 2017: Applied Nursing Research: ANR
https://www.readbyqxmd.com/read/28342454/fate-of-micronuclei-and-micronucleated-cells
#18
REVIEW
Henning Hintzsche, Ulrike Hemmann, Albrecht Poth, Dietmar Utesch, Jasmin Lott, Helga Stopper
The present review describes available evidence about the fate of micronuclei and micronucleated cells. Micronuclei are small, extranuclear chromatin bodies surrounded by a nuclear envelope. The mechanisms underlying the formation of micronuclei are well understood but not much is known about the potential fate of micronuclei and micronucleated cells. Many studies with different experimental approaches addressed the various aspects of the post-mitotic fate of micronuclei and micronucleated cells. These studies are reviewed here considering four basic possibilities for potential fates of micronuclei: degradation of the micronucleus or the micronucleated cell, reincorporation into the main nucleus, extrusion from the cell, and persistence in the cytoplasm...
January 2017: Mutation Research
https://www.readbyqxmd.com/read/28342209/from-somatic-pain-to-psychic-pain-the-body-in-the-psychoanalytic-field
#19
Thomas Hartung, Michael Steinbrecher
The integration of psyche and soma begins with a baby's earliest contact with his or her parents. With the help of maternal empathy and reverie, β-elements are transformed into α-elements. While we understand this to be the case, we would like to enquire what actually happens to those parts of the affect which have not been transformed? For the most part they may be dealt with by evacuation, but they can also remain within the body, subsequently contributing to psychosomatic symptoms. This paper describes how the body serves as an intermediate store between the psychic (inner) and outer reality...
March 24, 2017: International Journal of Psycho-analysis
https://www.readbyqxmd.com/read/28342193/metabolism-of-the-tryptamine-derived-new-psychoactive-substances-5-meo-2-me-dalt-5-meo-2-me-alcht-and-5-meo-2-me-dipt-and-their-detectability-in-urine-studied-by-gc-ms-lc-ms-n-and-lc-hr-ms-ms
#20
Achim T Caspar, Jonas B Gaab, Julian A Michely, Simon D Brandt, Markus R Meyer, Hans H Maurer
Many N,N-dialkylated tryptamines show psychoactive properties and were encountered as new psychoactive substances. The aims of the presented work were to study the phase I and II metabolism and the detectability in standard urine screening approaches (SUSA) of 5-methoxy-2-methyl-N,N-diallyltryptamine (5-MeO-2-Me-DALT), 5-methoxy-2-methyl-N-allyl-N-cyclohexyltryptamine (5-MeO-2-Me-ALCHT), and 5-methoxy-2-methyl-N,N-diisopropyltryptamine (5-MeO-2-Me-DIPT) using GC-MS, LC-MS(n) , and LC-HR-MS/MS. For metabolism studies, urine was collected over a 24-h period after administration of the compounds to male Wistar rats at 20 mg/kg body weight (BW)...
March 24, 2017: Drug Testing and Analysis
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