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https://www.readbyqxmd.com/read/28821123/interfacial-modification-on-polyhydroxyalkanoates-starch-blend-by-grafting-%C3%A2-in-situ
#1
Pengwu Xu, Qingtao Zeng, Ying Cao, Piming Ma, Weifu Dong, Mingqing Chen
The interfacial adhesion between polyhydroxyalkanoates (PHAs) and native starch is poor. To improve the interfacial adhesion, PHAs were in-situ grafted onto starch using dicumyl peroxide (DCP) as a free radical initiator. The grafting reaction was carefully characterized and confirmed by gel analysis and Fourier transform infrared spectroscopy (FT-IR). The gel yield of the PHAs/starch/DCP blend increased with the DCP concentration up to 2wt%. Meanwhile, obvious plastic deformation (stretched fibrils) was observed at the interface in the PHAs/starch/DCP blend in comparison with complete interfacial debonding in the PHAs/starch physical blend...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28821094/decoration-of-open-pore-network-in-polyvinylidene-fluoride-mwcnts-with-chitosan-for-the-removal-of-reactive-orange-16-dye
#2
Maria Wasim, Sadia Sagar, Aneela Sabir, Muhammad Shafiq, Tahir Jamil
Inspired by the hydrophilic, biocompatible, adsorbent properties of chitosan. A simple, adaptable, green synthesis method was developed to prepare a thin film composite membranes using chitosan as a pore decorating material for the removal of anionic dye-Reactive orange 16 (RO-16). The hydrophilic chitosan was used to fill up the porous hydrophobic PVDF substrate, modified by MWCNTs. The dye rejection was carried out through the formation of a strong electrostatic interaction between the cationic group of chitosan surface and the anionic group of RO-16 dye...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28820989/permanganate-bisulfite-pm-bs-conditioning-horizontal-electro-dewatering-hed-of-activated-sludge-effect-of-reactive-mn-iii-species
#3
Xinxin Guo, Yili Wang, Dongsheng Wang
A novel activated sludge (AS) conditioning method through permanganate/bisulfate (PM/BS) process was proposed. The method involved a new conditioner of reactive Mn(III) intermediate. Moreover, a Mn(III) conditioning-horizontal electro-dewatering (Mn(III) C-HED) process was established to improve AS dewatering performance. Underlying mechanisms were unraveled by investigating changes in physicochemical characteristics, scanning electron microscope (SEM) morphology, and transformation of water and organic matters...
August 11, 2017: Water Research
https://www.readbyqxmd.com/read/28820949/association-between-patient-factors-and-outcome-of-synthetic-cartilage-implant-hemiarthroplasty-vs-first-metatarsophalangeal-joint-arthrodesis-in-advanced-hallux-rigidus
#4
Andy Goldberg, Dishan Singh, Mark Glazebrook, Chris M Blundell, Gwyneth De Vries, Ian L D Le, Dominic Nielsen, M Elizabeth Pedersen, Anthony Sakellariou, Matthew Solan, Alastair S E Younger, Timothy R Daniels, Judith F Baumhauer
BACKGROUND: We evaluated data from a clinical trial of first metatarsophalangeal joint (MTPJ1) implant hemiarthroplasty and arthrodesis to determine the association between patient factors and clinical outcomes. METHODS: Patients ≥18 years with hallux rigidus grade 2, 3, or 4 were treated with synthetic cartilage implant MTPJ1 hemiarthroplasty or arthrodesis. Pain visual analog scale (VAS), Foot and Ankle Ability Measure (FAAM) sports and activities of daily living (ADL) scores, and Short Form-36 Physical Function (SF-36 PF) subscore were obtained preoperatively, and at 2, 6, 12, 24, 52, and 104 weeks postoperatively...
August 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28820909/dose-of-physical-activity-physical-functioning-and-disability-risk-in-mobility-limited-older-adults-results-from-the-life-study-randomized-trial
#5
Roger A Fielding, Jack M Guralnik, Abby C King, Marco Pahor, Mary M McDermott, Catrine Tudor-Locke, Todd M Manini, Nancy W Glynn, Anthony P Marsh, Robert S Axtell, Fang-Chi Hsu, W Jack Rejeski
Understanding the minimal dose of physical activity required to achieve improvement in physical functioning and reductions in disability risk is necessary to inform public health recommendations. To examine the effect of physical activity dose on changes in physical functioning and the onset of major mobility disability in The Lifestyle Interventions and Independence for Elders (LIFE) Study. We conducted a multicenter single masked randomized controlled trial that enrolled participants in 2010 and 2011 and followed them for an average of 2...
2017: PloS One
https://www.readbyqxmd.com/read/28820847/effectiveness-of-a-16-week-high-intensity-cardioresistance-training-program-in-adults
#6
Tina A Greenlee, Daniel R Greene, Nathan J Ward, Ginger E Reeser, Courtney M Allen, Nicholas W Baumgartner, Neal J Cohen, Arthur F Kramer, Charles H Hillman, Aron K Barbey
Greenlee, TA, Greene, DR, Ward, NJ, Reeser, GE, Allen, CM, Baumgartner, NW, Cohen, NJ, Kramer, AF, Hillman, CH, and Barbey, AK. Effectiveness of a 16-week high-intensity cardioresistance training program in adults. J Strength Cond Res 31(9): 2528-2541, 2017-The purpose of this study was to determine the efficacy of a novel, 16-week high-intensity cardioresistance training (HICRT) program on measures of aerobic fitness, agility, aerobic power, muscular endurance, lower-body explosive power, and self-reported activity level...
September 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28820846/noninvasive-assessment-of-skeletal-muscle-myosin-heavy-chain-expression-in-trained-and-untrained-men
#7
Andrew C Fry, Terry J Housh, Joel B Cramer, Joseph P Weir, Travis W Beck, Brian K Schilling, Jonathan D Miller, Justin X Nicoll
Fry, AC, Housh, TJ, Cramer, JB, Weir, JP, Beck, TW, Schilling, BK, Miller, JD, and Nicoll, JX. Noninvasive assessment of skeletal muscle myosin heavy chain expression in trained and untrained men. J Strength Cond Res 31(9): 2355-2362, 2017-Numerous conditions and types of physical activity (e.g., exercise, aging, and muscle-related diseases) can influence muscle fiber types and the proteins expressed. To date, muscle fibers can only be characterized by actually obtaining a tissue sample using the invasive muscle biopsy procedure...
September 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28820787/the-relationship-between-parental-and-child-physical-activity-in-a-rural-community
#8
Heath Larsen, Danae Dinkel, Shane Warehime, Kris Berg
This study examined the relationship between parental and child physical activity (PA) in a rural community. Forty-one children and at least 1 parent wore pedometers to measure step count over the course of 4 days. Parents also completed a PA survey assessing parental support for PA, parental enjoyment for PA, perceived importance of PA, and their own PA levels. Parental PA level and mothers' support for PA were moderately associated with their child's PA levels. Thus, future PA promotion efforts could focus on encouraging parents, primarily mothers, to be more active to help improve their child's PA levels...
October 2017: Family & Community Health
https://www.readbyqxmd.com/read/28820785/collective-efficacy-physical-activity-and-health-outcomes-among-mothers
#9
Deirdre Dlugonski, Bhibha M Das, Tiesha R Martin, Autumn Palmer
Motherhood is associated with low rates of physical activity that increase disease risk. Most theory-based approaches to increasing physical activity focus on personal rather than social factors. The purpose of this study was to examine the associations among perceptions of community collective efficacy and objectively measured physical activity, self-efficacy, social support, and health. Mothers completed questionnaires and wore a pedometer for 7 days. There was a significant, positive association between physical activity and collective efficacy-social cohesion subscale...
October 2017: Family & Community Health
https://www.readbyqxmd.com/read/28820602/intricate-resonant-raman-response-in-anisotropic-res2
#10
Amber McCreary, Jeffrey R Simpson, Yuanxi Wang, Daniel Rhodes, Kazunori Fujisawa, Luis Balicas, Madan Dubey, Vincent H Crespi, Mauricio Terrones, Angela R Hight Walker
The strong in-plane anisotropy of rhenium disulfide (ReS2) offers an additional physical parameter that can be tuned for advanced applications such as logic circuits, thin-film polarizers, and polarization-sensitive photodetectors. ReS2 also presents advantages for optoelectronics, as it is both a direct-gap semiconductor for few-layer thicknesses (unlike MoS2 or WS2) and stable in air (unlike black phosphorus). Raman spectroscopy is one of the most powerful characterization techniques to non-destructively and sensitively probe the fundamental photo-physics of a 2D material...
August 18, 2017: Nano Letters
https://www.readbyqxmd.com/read/28820462/wettability-investigations-and-wet-transfer-enhancement-of-large-area-cvd-graphene-on-aluminum-nitride
#11
Marius Knapp, René Hoffmann, Volker Cimalla, Oliver Ambacher
The two-dimensional and virtually massless character of graphene attracts great interest for radio frequency devices, such as surface and bulk acoustic wave resonators. Due to its good electric conductivity, graphene might be an alternative as a virtually massless electrode by improving resonator performance regarding mass-loading effects. We report on an optimization of the commonly used wet transfer technique for large-area graphene, grown via chemical vapor deposition, onto aluminum nitride (AlN), which is mainly used as an active, piezoelectric material for acoustic devices...
August 18, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28820271/cam-deformities-and-limited-hip-range-of-motion-are-associated-with-early-osteoarthritic-changes-in-adolescent-athletes-a-prospective-matched-cohort-study
#12
Cody C Wyles, Germán A Norambuena, Benjamin M Howe, Dirk R Larson, Bruce A Levy, Brandon J Yuan, Robert T Trousdale, Rafael J Sierra
BACKGROUND: The natural history of femoroacetabular impingement (FAI) remains incompletely understood. In particular, there is limited documentation of joint damage in adolescent patients with limited range of motion (LROM) of the hip, which is commonly associated with FAI. PURPOSE: To evaluate changes in magnetic resonance imaging (MRI), radiographs, and clinical examinations over 5 years in a group of athletes from a wide variety of sports with asymptomatic LROM of the hip compared with matched controls...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28820247/dft-study-on-c-f-bond-activation-by-group-14-dialkylamino-metalylenes-a-competition-between-oxidative-additions-versus-substitution-reactions
#13
Totan Mondal, Sriman De, Debasis Koley
The C-F bond activation of pentafluoropyridine (PFP) by group 14 dialkylamino metalylenes has been studied employing DFT calculations. Emphasis is placed on the group 14 central atom (M = Si(II), Ge(II), and Sn(II)) and substituents (-NMe2, -N(i)Pr2, -Cl, -NH2, and -PH2) dependent switching of oxidative addition to the metathesis/substitution reaction route, using state-of-the-art theoretical methods (M062X/def2-QZVP(SMD)//M062X/def2-TZVP) to provide a systematic classification of the individual mode of reactions...
August 18, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28820184/age-related-macular-degeneration-and-mortality-the-melbourne-collaborative-cohort-study
#14
M B McGuinness, R P Finger, A Karahalios, R H Guymer, D R English, E W Chong, A M Hodge, L D Robman, G G Giles, J A Simpson
AimsTo assess associations between features of age-related macular degeneration (AMD) and mortality.MethodsA total of 21 129 participants from the Melbourne Collaborative Cohort Study aged 47-85 years (60% female) were assessed for AMD (2003-2007). Mortality data to December 31, 2012 were obtained through linkage with the National Death Index. Associations were assessed using Cox regression, adjusting for age, sex, smoking, region of birth, education, physical activity, diet and alcohol.ResultsLate AMD was identified in 122 (0...
August 18, 2017: Eye
https://www.readbyqxmd.com/read/28820080/diet-quality-and-its-implications-on-the-cardio-metabolic-physical-and-general-health-of-older-men-the-concord-health-and-ageing-in-men-project-champ
#15
Rosilene V Ribeiro, Vasant Hirani, Alistair M Senior, Alison K Gosby, Robert G Cumming, Fiona M Blyth, Vasi Naganathan, Louise M Waite, David J Handelsman, Hal Kendig, Markus J Seibel, Stephen J Simpson, Fiona Stanaway, Margaret Allman-Farinelli, David G Le Couteur
The revised Dietary Guideline Index (DGI-2013) scores individuals' diets according to their compliance with the Australian Dietary Guideline (ADG). This cross-sectional study assesses the diet quality of 794 community-dwelling men aged 74 years and older, living in Sydney, Australia participating in the Concord Health and Ageing in Men Project; it also examines sociodemographic and lifestyle factors associated with DGI-2013 scores; it studies associations between DGI-2103 scores and the following measures: homoeostasis model assessment - insulin resistance, LDL-cholesterol, HDL-cholesterol, TAG, blood pressure, waist:hip ratio, BMI, number of co-morbidities and medications and frailty status while also accounting for the effect of ethnicity in these relationships...
July 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28820051/bisthiourea-derivatives-of-dipeptide-conjugated-benzo-d-isoxazole-as-a-new-class-of-therapeutics-synthesis-and-molecular-docking-studies
#16
H K Kumara, D M Suyoga Vardhan, J Shiva Kumar, D Channe Gowda
We have synthesized a series of bisthiourea derivatives of dipeptides (Lys/lys-Asp and Lys/lys-Trp) conjugated benzo[d]isoxazole and the structures of synthesized compounds were confirmed by correlating their physical and spectroscopic data with earlier data. The molecules 1-24 were examined for their in vitro anti-inflammatory activity by employing human erythrocyte suspension test and it was found that the IC50 values of 9, 12, 21 and 24 were lower than the IC50 of standard references indomethacin and ibuprofen...
August 16, 2017: Anti-inflammatory & Anti-allergy Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28819746/the-effects-of-resistance-exercise-training-on-anxiety-a-meta-analysis-and-meta-regression-analysis-of-randomized-controlled-trials
#17
REVIEW
Brett R Gordon, Cillian P McDowell, Mark Lyons, Matthew P Herring
BACKGROUND: The salutary effects of resistance exercise training (RET) are well established, including increased strength and function; however, less is known regarding the effects of RET on mental health outcomes. Aerobic exercise has well-documented positive effects on anxiety, but a quantitative synthesis of RET effects on anxiety is needed. OBJECTIVES: To estimate the population effect size for resistance exercise training (RET) effects on anxiety and to determine whether variables of logical, theoretical, and/or prior empirical relation to anxiety moderate the overall effect...
August 17, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28819350/understanding-sarcopenia-development-a-role-for-healthy-behaviors
#18
Justin P Hardee, James A Carson
For decades the biomedical community has documented the accelerated loss of muscle mass that occurs with advancing aging, termed sarcopenia. The timely review article ("Attenuation of Adverse Effects of Aging on Skeletal Muscle by Regular Exercise and Nutritional Support") by Arthur Leon presents our current state of knowledge on the biological processes responsible for age-induced loss of muscle mass and function. This loss of skeletal muscle has critical health implications as it can negatively affect morbidity and mortality...
January 2017: American Journal of Lifestyle Medicine
https://www.readbyqxmd.com/read/28819293/effects-of-temporal-correlations-in-social-multiplex-networks
#19
Michele Starnini, Andrea Baronchelli, Romualdo Pastor-Satorras
Multi-layered networks represent a major advance in the description of natural complex systems, and their study has shed light on new physical phenomena. Despite its importance, however, the role of the temporal dimension in their structure and function has not been investigated in much detail so far. Here we study the temporal correlations between layers exhibited by real social multiplex networks. At a basic level, the presence of such correlations implies a certain degree of predictability in the contact pattern, as we quantify by an extension of the entropy and mutual information analyses proposed for the single-layer case...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819051/the-effects-of-8-weeks-voluntary-wheel-running-on-the-contractile-performance-of-isolated-locomotory-soleus-and-respiratory-diaphragm-skeletal-muscle-during-early-ageing
#20
Jason Tallis, Matthew F Higgins, Frank Seebacher, Val M Cox, Michael J Duncan, Rob S James
Decreased skeletal muscle performance with increasing age is strongly associated with reduced mobility and quality of life. Increased physical activity is a widely prescribed method of reducing the detrimental effects of ageing on skeletal muscle contractility. The present study uses isometric and work loop testing protocols to uniquely investigate the effects of 8 weeks of voluntary wheel running on the contractile performance of isolated dynapenic soleus and diaphragm muscles of 38 week old CD1 mice. When compared to untrained controls, voluntary wheel running induced significant improvements in maximal isometric stress and work loop power, a reduced resistance to fatigue, but greater cumulative work during fatiguing work loop contractions in isolated muscle...
August 17, 2017: Journal of Experimental Biology
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