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https://www.readbyqxmd.com/read/29046547/mapping-the-global-potential-for-marine-aquaculture
#1
Rebecca R Gentry, Halley E Froehlich, Dietmar Grimm, Peter Kareiva, Michael Parke, Michael Rust, Steven D Gaines, Benjamin S Halpern
Marine aquaculture presents an opportunity for increasing seafood production in the face of growing demand for marine protein and limited scope for expanding wild fishery harvests. However, the global capacity for increased aquaculture production from the ocean and the relative productivity potential across countries are unknown. Here, we map the biological production potential for marine aquaculture across the globe using an innovative approach that draws from physiology, allometry and growth theory. Even after applying substantial constraints based on existing ocean uses and limitations, we find vast areas in nearly every coastal country that are suitable for aquaculture...
September 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/29045874/dynamic-scaling-analysis-of-molecular-motion-within-the-lat-grb2-sos-protein-network-on%C3%A2-membranes
#2
William Y C Huang, Han-Kuei Chiang, Jay T Groves
Biochemical signaling pathways often involve proteins with multiple, modular interaction domains. Signaling activates binding sites, such as by tyrosine phosphorylation, which enables protein recruitment and growth of networked protein assemblies. Although widely observed, the physical properties of the assemblies, as well as the mechanisms by which they function, remain largely unknown. Here we examine molecular mobility within LAT:Grb2:SOS assemblies on supported membranes by single-molecule tracking. Trajectory analysis reveals a discrete temporal transition to subdiffusive motion below a characteristic timescale, indicating that the LAT:Grb2:SOS assembly has the dynamical structure of a loosely entangled polymer...
October 17, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/29042517/control-of-growth-and-gut-maturation-by-hoxd-genes-and-the-associated-lncrna-haglr
#3
Jozsef Zakany, Fabrice Darbellay, Bénédicte Mascrez, Anamaria Necsulea, Denis Duboule
During embryonic development, Hox genes participate in the building of a functional digestive system in metazoans, and genetic conditions involving these genes lead to important, sometimes lethal, growth retardation. Recently, this phenotype was obtained after deletion of Haglr, the Hoxd antisense growth-associated long noncoding RNA (lncRNA) located between Hoxd1 and Hoxd3 In this study, we have analyzed the function of Hoxd genes in delayed growth trajectories by looking at several nested targeted deficiencies of the mouse HoxD cluster...
October 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29042181/opposing-roles-of-pgd2-in-gbm
#4
Matthew Thomas Ferreira, Renata Nascimento Gomes, Alexandros Theodoros Panagopoulos, Fernando Gonçalves de Almeida, José Carlos Esteves Veiga, Alison Colquhoun
BACKGROUND: The World Health Organization classifies glioblastoma (GBM) as a grade IV astrocytoma. Despite the advances in chemotherapy, surgery, and radiation treatments that improve a patient's length of survival, the overall trajectory of the disease remains unchanged. GBM cells produce significant levels of various types of bioactive lipids. Prostaglandin D2 (PGD2) influences both pro- and anti-tumorigenic activities in the cell; however, its role in GBM is unclear. Therefore, this study aimed to identify the impact of PGD2 on GBM cell activities in vitro...
October 14, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/29040503/the-role-of-early-life-growth-development-the-fto-gene-and-exclusive-breastfeeding-on-child-bmi-trajectories
#5
Yan Yan Wu, Stephen Lye, Laurent Briollais
Background: Recent studies have implicated the FTO gene in child and adult obesity. A longer duration of exclusive breastfeeding (EXBF) has been shown to reduce body mass index (BMI) and the risk of being overweight in the general population and among FTO gene carriers. However, it remains unclear whether the preventive effect of EXBF could be explained by its impact on early life growth development, e.g. ages at adiposity peak (AP) and adiposity rebound (AR) and BMI velocities in the first years of life, which are major determinants of overweight and obesity later in life...
June 20, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29039261/one-year-follow-up-of-the-capo-kids-trial-are-physical-benefits-maintained
#6
Rossana C Nogueira, Benjamin K Weeks, Belinda Beck
PURPOSE: To determine the 12-month maintenance of a 9-month, thrice-weekly, 10-minute high-intensity exercise program, delivered in schools, on bone and other health-related performance variables in prepubertal children. METHODS: All participants (N = 311) of the CAPO kids trial (testing times T1-T2) were contacted to undergo retesting (T3) of all original measures-including weight, standing and sitting height, calcaneal broadband ultrasound attenuation (Achilles, GE), and stiffness index (Achilles, GE)-waist circumference, resting heart rate, blood pressure, vertical jump, and aerobic capacity...
October 17, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/29036483/a-decade-of-war-prospective-trajectories-of-post-traumatic-stress-disorder-symptoms-among-deployed-us-military-personnel-and-the-influence-of-combat-exposure
#7
Carrie J Donoho, George A Bonanno, Ben Porter, Lauren Kearney, Teresa M Powell
Post-traumatic stress disorder (PTSD) is a common psychiatric disorder among service members and veterans. The clinical course of PTSD varies across individuals, and patterns of symptom development have yet to be clearly delineated. Previous studies have been limited by convenience sampling, short follow-up periods, and inability to account for combat-related trauma. To determine the trajectories of PTSD symptoms among deployed military personnel with and without combat exposure, we used data from a population-based representative sample of 8,178 US service members participating in the Millennium Cohort Study from 2001-2011...
September 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29034337/new-biomarkers-of-post-settlement-growth-in-the-sea-urchin-strongylocentrotus-purpuratus
#8
Alyaa Elsaid Abdelaziz Fadl, Magdy Elsayed Mahfouz, Mona Mabrouk Taha El-Gamal, Andreas Heyland
Some sea urchins, including the purple sea urchin Strongylocentrotus purpuratus, have been successfully used in aquaculture, but their slow growth and late reproduction are challenging to overcome when developing efficient aquaculture production techniques. S. purpuratus develops via an indirect life history that is characterized by a drastic settlement process at the end of a larval period that lasts for several weeks. During this transition, the bilateral larva is transformed into a pentaradial juvenile, which will start feeding and growing in the benthic habitat...
October 2017: Heliyon
https://www.readbyqxmd.com/read/29034135/heterogeneity-in-trajectories-of-depression-in-response-to-divorce-is-associated-with-differential-risk-for-mortality
#9
Matteo Malgaroli, Isaac R Galatzer-Levy, George A Bonanno
Divorce is a common stressful event associated with both increased rates of depression and mortality. Given evidence of significant individual differences in depression following major life stressors, we examined if heterogeneous depression responses confer differential risk for mortality. Data from a population based longitudinal study was utilized to identify individuals who experienced divorce (n=559). Prospective trajectories of depression severity from before to after divorce were identified using latent growth mixture modeling, and rates of mortality between trajectories were compared as a distal outcome...
September 2017: Clinical Psychological Science
https://www.readbyqxmd.com/read/29032950/trajectories-of-fasting-plasma-glucose-variability-and-mortality-in-type-2-diabetes
#10
Chia-Lin Lee, Wayne Huey-Herng Sheu, I-Te Lee, Shih-Yi Lin, Wen-Miin Liang, Jun-Sing Wang, Yu-Fen Li
AIM: To investigate the effect of changes in fasting plasma glucose (FPG) variability, as assessed by 2-year trajectories of FPG variability, on mortality risk in patients with type 2 diabetes (T2D). METHODS: From 2009 to 2012, outpatients with T2D, aged>18 years, were enrolled from a medical centre. FPG was measured every 3 months for 2 years in 3569 people. For each of the eight 3-month intervals, FPG variability and means were calculated, with variability defined as the coefficient of variation of FPG...
October 9, 2017: Diabetes & Metabolism
https://www.readbyqxmd.com/read/29031516/growth-of-adult-spinal-cord-in-knifefish-development-and-parametrization-of-a-distributed-model
#11
Iulian Ilieş, Rifat Sipahi, Günther K H Zupanc
The study of indeterminate-growing organisms such as teleost fish presents a unique opportunity for improving our understanding of central nervous tissue growth during adulthood. Integrating the existing experimental data associated with this process into a theoretical framework through mathematical or computational modeling provides further research avenues through sensitivity analysis and optimization. While this type of approach has been used extensively in investigations of tumor growth, wound healing, and bone regeneration, the development of nervous tissue has been rarely studied within a modeling framework...
October 12, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29029215/child-sexual-abuse-and-depression-in-late-life-for-men-a-population-based-longitudinal-analysis
#12
Scott D Easton, Jooyoung Kong, Matt C Gregas, Ce Shen, Kevin Shafer
Objective: Research investigating long-term effects of childhood sexual abuse (CSA) on mental health for men is vastly underdeveloped. This study strengthened the knowledge base by examining: (a) long-term trajectories of depressive symptoms for men with and without a history of CSA, and (b) moderating effects of social support over time. Method: We analyzed multiple waves of data from the Wisconsin Longitudinal Study. The sample (N = 2,451) consisted of men with histories of CSA and a stratified, randomly sampled comparison group...
September 27, 2017: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/29027003/explaining-long-term-inter-individual-growth-variation-in-plant-populations-persistence-of-abiotic-factors-matters
#13
Merel Jansen, Niels P R Anten, Frans Bongers, Miguel Martínez-Ramos, Mayra E Gavito, Pieter A Zuidema
An unanswered question in ecology is whether the environmental factors driving short-term performance also determine the often observed long-term performance differences among individuals. Here, we analyze the extent to which temporal persistence of spatial heterogeneity in environmental factors can contribute to long-term inter-individual variation in stem length growth. For a natural population of a long-lived understorey palm, we first quantified the effect of several environmental factors on stem length growth and survival...
October 12, 2017: Oecologia
https://www.readbyqxmd.com/read/29026488/a-longitudinal-study-on-the-effects-of-negative-rearing-experiences-on-adolescents-social-withdrawal-and-aggression
#14
Kyung-Suk Lee, Ok-Joo Choi, Joon-Ho Kim
BACKGROUND: Children who have experienced negative rearing behaviors show a lack of self-confidence due to emotional instability and are reserved in interpersonal relationships. This can lead to failure in social adaptation and a high risk of depression, suicide, criminal acts, and anti-social behaviors. Therefore, this study aims to analyze the effects of experiencing negative parental rearing behaviors, such as neglect and abuse, on adolescents' social withdrawal and aggression, by utilizing multivariate latent growth models...
September 2017: Korean Journal of Family Medicine
https://www.readbyqxmd.com/read/29024584/computational-prediction-of-rate-constant-for-reactions-involved-in-al-clustering
#15
Ning Ning, Lénaïc Couedel, Cécile Arnas, Sergey Khrapak
Aluminium (Al) clustering processes via three types of association reactions are herein studied using classical molecular dynamics trajectory calculations. The simulations were carried out under realistic experimental conditions. The dependence of rate constants on temperature and cluster size was obtained. The association reactions have a very small activation barrier, and the activation energy increases with increasing temperatures. Our prediction of reaction rate constants can be of interest for the study of Al nanoparticle growth using kinetic models...
October 12, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29024128/foetal-development-of-skeletal-muscle-in-bovines-as-a-function-of-maternal-nutrition-foetal-sex-and-gestational-age
#16
T R S Gionbelli, C M Veloso, P P Rotta, S C Valadares Filho, B C Carvalho, M I Marcondes, C S Cunha, M A S Novaes, L D Prezotto, M S Duarte, M P Gionbelli
To determine the effects of maternal nutrition on modifications of foetal development of the skeletal muscle and possible increase in the potential of skeletal muscle growth in cattle, gestating cows were either fed 190% NRC recommendations (overnourished; ON) or 100% NRC recommendation (control; CO). Interaction between maternal nutrition (MN) and the foetal sex (FS) was also investigated. Foetuses were necropsied at four different time points throughout gestation (139, 199, 241 and 268 days of gestation) to assess the mRNA expression of myogenic, adipogenic and fibrogenic markers in skeletal muscle...
October 10, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29022139/the-longitudinal-bidirectional-relationships-between-parent-reports-of-child-secondhand-smoke-exposure-and-child-smoking-trajectories
#17
Ashley H Clawson, Elizabeth L McQuaid, Shira Dunsiger, Kiera Bartlett, Belinda Borrelli
This study examines the longitudinal relationships between child smoking and secondhand smoke exposure (SHSe). Participants were 222 parent-child dyads. The parents smoked, had a child with (48%) or without asthma, and were enrolled in a smoking/health intervention. Parent-reported child SHSe was measured at baseline and 4, 6, and 12-month follow-ups; self-reported child smoking was assessed at these points and at 2-months. A parallel process growth model was used. Baseline child SHSe and smoking were correlated (r = 0...
October 11, 2017: Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/29019302/education-and-successful-aging-trajectories-a-longitudinal-population-based-latent-variable-modelling-analysis
#18
Theodore D Cosco, Blossom C M Stephan, Carol Brayne, Graciela Muniz
As the population ages, interest is increasing in studying aging well. However, more refined means of examining predictors of biopsychosocial conceptualizations of successful aging (SA) are required. Existing evidence of the relationship between early-life education and later-life SA is unclear. The Successful Aging Index (SAI) was mapped onto the Cognitive Function and Aging Study (CFAS), a longitudinal population-based cohort (n = 1,141). SAI scores were examined using growth mixture modelling (GMM) to identify SA trajectories...
October 11, 2017: Canadian Journal on Aging, la Revue Canadienne du Vieillissement
https://www.readbyqxmd.com/read/29017729/fungal-community-dynamics-during-a-marine-dinoflagellate-noctiluca-scintillans-bloom
#19
Jing-Yun Sun, Yu Song, Zhi-Ping Ma, Huai-Jing Zhang, Zhong-Duo Yang, Zhong-Hua Cai, Jin Zhou
Contamination and eutrophication have caused serious ecological events (such as algal bloom) in coastal area. During this ecological process, microbial community structure is critical for algal bloom succession. The diversity and composition of bacteria and archaea communities in algal blooms have been widely investigated; however, those of fungi are poorly understood. To fill this gap, we used pyrosequencing and correlation approaches to assess fungal patterns and associations during a dinoflagellate (Noctiluca scintillans) bloom...
October 4, 2017: Marine Environmental Research
https://www.readbyqxmd.com/read/29017480/longitudinal-assessment-of-daily-activity-patterns-on-weight-change-after-involuntary-job-loss-the-adapt-study-protocol
#20
Patricia L Haynes, Graciela E Silva, George W Howe, Cynthia A Thomson, Emily A Butler, Stuart F Quan, Duane Sherrill, Molly Scanlon, Darlynn M Rojo-Wissar, Devan N Gengler, David A Glickenstein
BACKGROUND: The World Health Organization has identified obesity as one of the most visible and neglected public health problems worldwide. Meta-analytic studies suggest that insufficient sleep increases the risk of developing obesity and related serious medical conditions. Unfortunately, the nationwide average sleep duration has steadily declined over the last two decades with 25% of U.S. adults reporting insufficient sleep. Stress is also an important indirect factor in obesity, and chronic stress and laboratory-induced stress negatively impact sleep...
October 10, 2017: BMC Public Health
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