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https://www.readbyqxmd.com/read/29352394/scarce-evidence-of-ozone-effect-on-recent-health-and-productivity-of-alpine-forests-a-case-study-in-trentino-n-italy
#1
Marco Ferretti, Giovanni Bacaro, Giorgio Brunialti, Mauro Confalonieri, Fabiana Cristofolini, Antonella Cristofori, Luisa Frati, Angelo Finco, Giacomo Gerosa, Simona Maccherini, Elena Gottardini
We investigated the significance of tropospheric ozone as a factor explaining recent tree health (in terms of defoliation) and productivity (in terms of basal area increment, BAI) in 15 ICP Forests level I and one level II plots in alpine forests in Trentino (N. Italy). Mean daily ozone summer concentrations varied between 30 and 72 parts per billion (ppb) leading to large exceedance of concentration-based critical levels set to protect forest trees. Phytoxic ozone dose (POD0) estimated at the level II plot over the period 1996-2009 was 31-61 mmol m-2 projected leaf area (PLA)...
January 20, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29352352/morphology-structure-and-optical-properties-of-semiconductor-films-with-gesisn-nanoislands-and-strained-layers
#2
Vyacheslav Timofeev, Alexandr Nikiforov, Artur Tuktamyshev, Vladimir Mashanov, Michail Yesin, Aleksey Bloshkin
The dependences of the two-dimensional to three-dimensional growth (2D-3D) critical transition thickness on the composition for GeSiSn films with a fixed Ge content and Sn content from 0 to 16% at the growth temperature of 150 °С have been obtained. The phase diagrams of the superstructure change during the epitaxial growth of Sn on Si and on Ge(100) have been built. Using the phase diagram data, it becomes possible to identify the Sn cover on the Si surface and to control the Sn segregation on the superstructure observed on the reflection high-energy electron diffraction (RHEED) pattern...
January 19, 2018: Nanoscale Research Letters
https://www.readbyqxmd.com/read/29352162/a-prolonged-run-in-period-of-standard-subcutaneous-microdialysis-ameliorates-quality-of-interstitial-glucose-signal-in-patients-after-major-cardiac-surgery
#3
Othmar Moser, Julia Münzker, Stefan Korsatko, Christoph Pachler, Karlheinz Smolle, Wolfgang Toller, Thomas Augustin, Johannes Plank, Thomas R Pieber, Julia K Mader, Martin Ellmerer
We evaluated a standard subcutaneous microdialysis technique for glucose monitoring in two critically ill patient populations and tested whether a prolonged run-in period improves the quality of the interstitial glucose signal. 20 surgical patients after major cardiac surgery (APACHE II score: 10.1 ± 3.2) and 10 medical patients with severe sepsis (APACHE II score: 31.1 ± 4.3) were included in this investigation. A microdialysis catheter was inserted in the subcutaneous adipose tissue of the abdominal region...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29351877/rest-a-master-transcriptional-regulator-in-neurodegenerative-disease
#4
REVIEW
Jee-Yeon Hwang, R Suzanne Zukin
The restrictive element-1 silencing transcription factor)/NRSF (neuron-restrictive silencing factor (NRSF) is a transcriptional repressor which acts via epigenetic remodeling to silence target genes. Emerging evidence indicates that REST is a master transcriptional regulator of neuron-specific genes not only in neurogenesis and neuronal differentiation, but also in differentiated neurons during the critical period in postnatal brain development, where it plays a role in fine-tuning of genes involved in synaptic plasticity, and in normal aging, where it promotes neuroprotection by repressing genes involved in oxidative stress and β-amyloid toxicity...
January 16, 2018: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/29351740/population-size-may-shape-the-accumulation-of-functional-mutations-following-domestication
#5
Jianhai Chen, Pan Ni, Xinyun Li, Jianlin Han, Ivan Jakovlić, Chengjun Zhang, Shuhong Zhao
BACKGROUND: Population genetics theory predicts an important role of differences in the effective population size (N e ) among species on shaping the accumulation of functional mutations by regulating the selection efficiency. However, this correlation has never been tested in domesticated animals. RESULTS: Here, we synthesized 62 whole genome data in eight domesticated species (cat, dog, pig, goat, sheep, chicken, cattle and horse) and compared domesticates with their wild (or ancient) relatives...
January 19, 2018: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/29351496/implementation-of-a-prehospital-protocol-change-for-asthmatic-children
#6
Anriada Nassif, Daniel G Ostermayer, Kim B Hoang, Mary K Claiborne, Elizabeth A Camp, Manish I Shah
BACKGROUND: Respiratory distress due to asthma is a common reason for pediatric emergency medical services (EMS) transports. Timely initiation of asthma treatment, including glucocorticoids, improves hospital outcomes. The impact of EMS-administered glucocorticoids on hospital-based outcomes for pediatric asthma patients is unknown. OBJECTIVE: The objective of this study was to evaluate the effect of an evidence-based pediatric EMS asthma protocol update, inclusive of oral glucocorticoid administration, on time to hospital discharge...
January 19, 2018: Prehospital Emergency Care
https://www.readbyqxmd.com/read/29351308/skin-transcriptome-reveals-the-dynamic-changes-in-the-wnt-pathway-during-integument-morphogenesis-of-chick-embryos
#7
Husile Gong, Hong Wang, YueXing Wang, Xue Bai, Bin Liu, JinFeng He, JiangHong Wu, WangMei Qi, WenGuang Zhang
Avian species have a unique integument covered with feathers. Skin morphogenesis is a successive and complex process. To date, most studies have focused on a single developmental point or stage. Fewer studies have focused on whole transcriptomes based on the time-course of embryo integument development. To analyze the global changes in gene expression profiles, we sequenced the transcriptome of chicken embryo skin samples from day 6 to day 21 of incubation and identified 5830 differentially expressed genes (DEGs)...
2018: PloS One
https://www.readbyqxmd.com/read/29351020/a-dynamic-state-model-of-migratory-behavior-and-physiology-to-assess-the-consequences-of-environmental-variation-and-anthropogenic-disturbance-on-marine-vertebrates
#8
Enrico Pirotta, Marc Mangel, Daniel P Costa, Bruce Mate, Jeremy A Goldbogen, Daniel M Palacios, Luis A Hückstädt, Elizabeth A McHuron, Lisa Schwarz, Leslie New
Integrating behavior and physiology is critical to formulating new hypotheses on the evolution of animal life-history strategies. Migratory capital breeders acquire most of the energy they need to sustain migration, gestation, and lactation before parturition. Therefore, when predicting the impact of environmental variation on such species, a mechanistic understanding of the physiology of their migratory behavior is required. Using baleen whales as a model system, we developed a dynamic state variable model that captures the interplay among behavioral decisions, energy, reproductive needs, and the environment...
February 2018: American Naturalist
https://www.readbyqxmd.com/read/29350776/the-existential-experience-of-everyday-life-with-systemic-lupus-erythematosus
#9
Janni Lisander Larsen, Elisabeth O C Hall, Søren Jacobsen, Regner Birkelund
AIM: To explore, from the perspective of women the nature of basic existential conditions while living with systemic lupus erythematosus. BACKGROUND: Systemic lupus erythematosus has an unpredictable disease course and is documented to cause an existential rearrangement of life. The significance of changes in existential conditions and related experiences are unclear in the context of nursing and women with systemic lupus erythematosus. DESIGN: A qualitative design guided by Van Manen's hermeneutic phenomenological methodology...
January 19, 2018: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/29350672/rebounds-after-discharge-from-the-emergency-department-for-community-acquired-pneumonia-focus-on-the-usefulness-of-severity-scoring-systems
#10
Rodolfo Ferrari, Pierluigi Viale, Paolo Muratori, Fabrizio Giostra, Daniela Agostinelli, Roberto Lazzari, Riccardo Voza, Mario Cavazza
BACKGROUND: Community-acquired pneumonia (CAP) is common cause of hospital admission and leading cause of morbidity and mortality. Severity scoring systems are used to predict risk profile, outcome and mortality, and to help decisions about management strategies. Aim of the work and Methods: To critically analyze pneumonia "rebound" cases, once discharged from the emergency department (ED) and afterwards admitted. We conducted an observational clinical study in the acute setting of a university teaching hospital, prospectively analyzing, in a 1 year period, demographic, medical, clinical and laboratory data, and the outcome...
January 16, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350296/use-of-biotechnological-devices-in-the-quantification-of-psychophysiological-workload-of-professional-chess-players
#11
Juan P Fuentes, Santos Villafaina, Daniel Collado-Mateo, Ricardo de la Vega, Narcis Gusi, Vicente Javier Clemente-Suárez
Psychophysiological requirements of chess players are poorly understood, and periodization of training is often made without any empirical basis. For this reason, the aim of the present study was to investigate the psychophysiological response and quantify the player internal load during, and after playing a chess game. The participant was an elite 33 year-old male chess player ranked among the 300 best chess players in the world. Thus, cortical arousal by critical flicker fusion threshold, electroencephalogram by the theta Fz/alpha Pz ratio and autonomic modulation by heart rate variability were analyzed...
January 19, 2018: Journal of Medical Systems
https://www.readbyqxmd.com/read/29349978/-correlation-of-medial-compartmental-joint-line-elevation-with-femorotibial-angle-correction-and-clinical-function-after-unicompartmental-arthroplasty
#12
Zhan-Feng Zhang, Dan Wang, Ji-Kang Min
OBJECTIVE: To study the correlation of postoperative femorotibial angle with medial compartmental joint line elevation after unicompartmental arthroplasty(UKA), as well as the correlation of joint line elevation with the clinical function by measuring radiological joint line. METHODS: A retrospective study of 56 patients from July 2012 to August 2015 was performed. The mean body mass index (BMI) was 23.5 (ranged, 18.3 to 30.1). The standing anteroposterior radiographs of these patients were assessed both pre-and post-operatively, and the knee function was evaluated according to HSS grading...
April 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29349794/adolescents-reward-related-neural-activation-links-to-thoughts-of-nonsuicidal-self-injury
#13
Jennifer A Poon, James C Thompson, Erika E Forbes, Tara M Chaplin
Adolescence is a critical developmental period marked by an increase in risk behaviors, including nonsuicidal self-injury (NSSI). Heightened reward-related brain activation and relatively limited recruitment of prefrontal regions contribute to the initiation of risky behaviors in adolescence. However, neural reward processing has not been examined among adolescents who are at risk for future engagement for NSSI specifically, but who have yet to actually engage in this behavior. In the current fMRI study (N = 71), we hypothesized that altered reward processing would be associated with adolescents' thoughts of NSSI...
January 19, 2018: Suicide & Life-threatening Behavior
https://www.readbyqxmd.com/read/29349711/impact-of-an-embedded-genetic-counselor-on-breast-cancer-treatment
#14
Holly J Pederson, Najaah Hussain, Ryan Noss, Courtney Yanda, Colin O'Rourke, Charis Eng, Stephen R Grobmyer
BACKGROUND: We predicted that embedding a genetic counselor within our breast practice would improve identification of high-risk individuals, timeliness of care, and appropriateness of surgical decision making. The aim of this study is to compare cancer care between 2012 and 2014, prior to embedding a genetic counselor in the breast center and following the intervention, respectively. METHODS: A retrospective review of patients diagnosed with breast cancer in 2012 (n = 471) and 2014 (n = 440) was performed to assess patterns of medical genetics referral, compliance with referral, genetic testing findings, and impact on treatment...
January 18, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29348076/association-between-serum-arsenic-levels-and-gestational-diabetes-mellitus-a-population-based-birth-cohort-study
#15
Xun Xia, Chunmei Liang, Jie Sheng, Shuangqin Yan, Kun Huang, Zhijuan Li, Weijun Pan, Ruiwen Tao, Jiahu Hao, Beibei Zhu, Shilu Tong, Fangbiao Tao
Gestational diabetes mellitus (GDM) is a common obstetric complication with adverse effects on both mothers and their children. Previous studies revealed the link between Arsenic (As) exposure and incidence of diabetes mellitus (DM), but the data on the association between maternal As exposure and GDM is scarce. We examined this association among a population-based birth cohort. As concentrations were determined at multiple time points during pregnancy by ICP-MS. The association between As levels and GDM prevalence was examined using logistic regression model after adjustment for confounders...
January 15, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29347982/emergency-department-hyperoxia-is-associated-with-increased-mortality-in-mechanically-ventilated-patients-a-cohort-study
#16
David Page, Enyo Ablordeppey, Brian T Wessman, Nicholas M Mohr, Stephen Trzeciak, Marin H Kollef, Brian W Roberts, Brian M Fuller
BACKGROUND: Providing supplemental oxygen is fundamental in the management of mechanically ventilated patients. Increasing amounts of data show worse clinical outcomes associated with hyperoxia. However, these previous data in the critically ill have not focused on outcomes associated with brief hyperoxia exposure immediately after endotracheal intubation. Therefore, the objectives of this study were to evaluate the impact of isolated early hyperoxia exposure in the emergency department (ED) on clinical outcomes among mechanically ventilated patients with subsequent normoxia in the intensive care unit (ICU)...
January 18, 2018: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29347924/causes-of-death-in-hospitalized-children-younger-than-12%C3%A2-years-of-age-in-a-chinese-hospital-a-10%C3%A2-year-study
#17
Yueniu Zhu, Xiaodong Zhu, Mengyan Deng, Hongxia Wei, Mingjun Zhang
BACKGROUND: In China, the majority (77%) of urban children die in hospitals. Hospital-based review could provide insight leading to improvements in clinical practice and increase the survival of critically ill children. The aim of the present study is to identify the trends of immediate causes and chronic underlying diseases associated with deaths of children at one of the largest teaching hospitals in China over a period of 10 years (2006-2015). METHODS: A retrospective analysis of data of all children aged 1 month to 11 years who died at Xinhua Hospital between 2006 and 2015...
January 18, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29347828/change-in-hiv-related-stigma-in-south-africa-between-2004-and-2016-a-cross-sectional-community-study
#18
Maretha J Visser
A critical component of an AIDS-free generation is to reduce HIV-related stigma. Previous research predicted that stigma would decline over time with increased contact with PLWH, understanding of the disease and availability of treatment. The aim of the research was to explore change in stigma over a 12-year period, by comparing data collected from two large cross-sectional samples from South African communities in 2004 (before the roll-out of antiretroviral treatment (ART)) and in 2016. Students recruited respondents according to criteria related to age, gender, race and area of living...
January 18, 2018: AIDS Care
https://www.readbyqxmd.com/read/29347572/multichain-models-of-conserved-lattice-gas
#19
Arijit Chatterjee, P K Mohanty
Conserved lattice-gas models in one dimension exhibit absorbing state phase transition (APT) with simple integer exponents β=1=ν=η, whereas the same on a ladder belong to directed percolation (DP) universality. We conjecture that additional stochasticity in particle transfer is a relevant perturbation and its presence on a ladder forces the APT to be in the DP class. To substantiate this we introduce a class of restricted conserved lattice-gas models on a multichain system (M×L square lattice with periodic boundary condition in both directions), where particles which have exactly one vacant neighbor are active and they move deterministically to the neighboring vacant site...
October 2017: Physical Review. E
https://www.readbyqxmd.com/read/29347461/strongly-nonlinear-theory-of-rapid-solidification-near-absolute-stability
#20
Katarzyna N Kowal, Anthony L Altieri, Stephen H Davis
We investigate the nonlinear evolution of the morphological deformation of a solid-liquid interface of a binary melt under rapid solidification conditions near two absolute stability limits. The first of these involves the complete stabilization of the system to cellular instabilities as a result of large enough surface energy. We derive nonlinear evolution equations in several limits in this scenario and investigate the effect of interfacial disequilibrium on the nonlinear deformations that arise. In contrast to the morphological stability problem in equilibrium, in which only cellular instabilities appear and only one absolute stability boundary exists, in disequilibrium the system is prone to oscillatory instabilities and a second absolute stability boundary involving attachment kinetics arises...
October 2017: Physical Review. E
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