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https://www.readbyqxmd.com/read/28426077/robust-raspberry-like-metallo-dielectric-nanoclusters-of-critical-sizes-as-sers-substrates
#1
A Le Beulze, S Gomez-Graña, H Gehan, S Mornet, S Ravaine, M Correa-Duarte, L Guerrini, R A Alvarez-Puebla, E Duguet, E Pertreux, A Crut, P Maioli, F Vallée, N Del Fatti, O Ersen, M Treguer-Delapierre
Raspberry-like nano-objects made of large plasmonic satellites (>10 nm) covering a central dielectric particle have many potential applications as photonic materials, superlenses and (bio-) sensors, but their synthesis remains challenging. Herein, we show how to build stable and robust raspberry-like nano-systems with close-packed satellites, by combining monodisperse silica particles (80 or 100 nm diameter) and oppositely charged noble metal nanoparticles (Au or Ag) with well-defined sizes (10-50 nm). The spectral characteristics of their associated plasmonic resonances (wavelength, linewidth, extinction cross-section) and the electromagnetic coupling between satellites were observed using the spatial modulation spectroscopy technique and interpreted through a numerical model...
April 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28383375/comparison-of-vaginal-hysterectomy-techniques-and-interventions-for-benign-indications-a-systematic-review
#2
Peter C Jeppson, Sunil Balgobin, David D Rahn, Kristen A Matteson, Alexis A Dieter, David R Ellington, Sarit O Aschkenazi, Cara Grimes, Mamta M Mamik, Ethan M Balk, Miles Murphy
OBJECTIVE: To create evidence-based clinical practice guidelines based on a systematic review of published literature regarding the risks and benefits of available preoperative, intraoperative, and postoperative technical steps and interventions at the time of vaginal hysterectomy for benign indications. DATA SOURCES: We systematically searched the literature to identify studies that compared technical steps or interventions during the preoperative, intraoperative, and postoperative periods surrounding vaginal hysterectomy...
May 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28365814/comparing-the-phenotypic-susceptibility-of-pelibuey-and-katahdin-female-lambs-against-natural-gastrointestinal-nematode-infections-under-hot-humid-tropical-conditions
#3
J G Palomo-Couoh, A J Aguilar-Caballero, J F J Torres-Acosta, R González-Garduño
This study compared the phenotypic susceptibility of Pelibuey and Katahdin female lambs against gastrointestinal nematodes (GINs) under grazing conditions in the hot humid tropics of Mexico. The study was performed during the rainy season (August to October, 2014). It included 27 Pelibuey and 12 Katahdin female lambs from 6 months of age and live weight of 21.0 ± 3.7 and 23.3 ± 3.6 kg, respectively. Lambs were reared free of GIN infection before the study. The study lasted 91 days. Animals were weighed and sampled (blood and feces) on days 0 and 28 and every 7 days onwards...
April 1, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28314357/experimental-study-on-thermal-conductivity-and-hardness-of-cu-and-ni-nanoparticle-packed-bed-for-thermoelectric-application
#4
Zi-Zhen Lin, Cong-Liang Huang, Wen-Kai Zhen, Yan-Hui Feng, Xin-Xin Zhang, Ge Wang
The hot-wire method is applied in this paper to probe the thermal conductivity (TC) of Cu and Ni nanoparticle packed beds (NPBs). A different decrease tendency of TC versus porosity than that currently known is discovered. The relationship between the porosity and nanostructure is investigated to explain this unusual phenomenon. It is found that the porosity dominates the TC of the NPB in large porosities, while the TC depends on the contact area between nanoparticles in small porosities. Meanwhile, the Vickers hardness (HV) of NPBs is also measured...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28257201/synthesis-of-max-phases-in-the-zr-ti-al-c-system
#5
Bensu Tunca, Thomas Lapauw, Olesia M Karakulina, Maria Batuk, Thierry Cabioc'h, Joke Hadermann, Rémi Delville, Konstantina Lambrinou, Jozef Vleugels
This study reports on the synthesis and characterization of MAX phases in the (Zr,Ti)n+1AlCn system. The MAX phases were synthesized by reactive hot pressing and pressureless sintering in the 1350-1700 °C temperature range. The produced ceramics contained large fractions of 211 and 312 (n = 1, 2) MAX phases, while strong evidence of a 413 (n = 3) stacking was found. Moreover, (Zr,Ti)C, ZrAl2, ZrAl3, and Zr2Al3 were present as secondary phases. In general, the lattice parameters of the hexagonal 211 and 312 phases followed Vegard's law over the complete Zr-Ti solid solution range, but the 312 phase showed a non-negligible deviation from Vegard's law around the (Zr0...
March 3, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28231158/irradiation-maintains-functional-components-of-dry-hot-peppers-capsicum-annuum-l-under-ambient-storage
#6
Qumer Iqbal, Muhammad Amjad, Muhammad Rafique Asi, Aamir Nawaz, Samiya Mahmood Khan, Agustin Ariño, Tanveer Ahmad
Hot peppers used as natural flavoring and coloring agents are usually irradiated in prepacked form for decontamination. The effects of gamma radiation on the stability of functional components such as capsaicinoids and antioxidant compounds (carotenoids, ascorbic acid and total phenolics) were investigated in hot peppers (Capsicum annuum). Whole dried peppers packed in polyethylene bags were gamma irradiated at 0 (control), 2, 4, and 6 kGy and subsequently stored at 25 °C for 90 days. The irradiation dose did not substantially affect the initial contents of capsaicinoids, ascorbic acid and total phenolics, though the concentration of carotenoids declined by 8% from the control (76...
September 12, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28217358/crystal-structure-of-chlorido-bis-1-2-5-6-%C3%AE-cyclo-octa-1-5-diene-iridium-i
#7
A K Fazlur Rahman, Miles Wilklow-Marnell, William W Brennessel, William D Jones
The title complex, [IrCl(C8H12)2], was synthesized directly from the reaction of IrCl3·3H2O with a large excess of cod (cod = cyclo-octa-1,5-diene) in alcoholic solvent. Large yellow needles were obtained by the slow cooling of a hot solution. Based on the positions of the chloride ligand and the mid-points of the four C=C bonds, the mol-ecule adopts a five-coordinate geometry that is midway between square pyramidal and trigonal bipyramidal. The material crystallizes in the ortho-rhom-bic space group Pbca with one mol-ecule per asymmetric unit in a general position and shows no significant inter-molecular inter-actions...
February 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28216719/diagnosis-and-management-of-chronic-pruritus-an-expert-consensus-review
#8
REVIEW
Murlidhar Rajagopalan, Abir Saraswat, Kiran Godse, D S Krupa Shankar, Sanjiv Kandhari, Shrutakirthi D Shenoi, Sushil Tahiliani, V Vijay Zawar
The aim of this study is to formulate the best clinical practice in the diagnosis and management of chronic pruritus (CP). We searched PubMed, EMBASE, Scopus, Web of Science, and the WHO's regional databases, for studies on "Diagnosis and management of chronic pruritus" from January 1, 2014, to July 31, 2015. We included programmatic reports and hand-searched references of published reviews and articles. Two independent reviewers screened articles and extracted data. We screened 87 of 95 studies that contained qualitative data...
January 2017: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/28195970/reduction-of-physiological-strain-under-a-hot-and-humid-environment-by-a-hybrid-cooling-vest
#9
Albert P C Chan, Y Yang, Francis K W Wong, Michael C H Yam, Del P Wong, W F Song
Cooling treatment is regarded as one of good practices to provide safe training conditions to athletic trainers in the hot environment. The present study aimed to investigate whether wearing a commercial lightweight and portable hybrid cooling vest that combines air ventilation fans with frozen gel packs was an effective means to reduce participants' body heat strain. In this within-subject repeated measures study, 10 male volunteers participated in two heat-stress trials (one with the cooling vest - COOL condition, and another without - CON condition, in a randomized order) inside a climatic chamber with a controlled ambient temperature 33 °C and relative humidity (RH) 75% on an experimental day...
February 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28102755/anionic-lipids-and-the-maintenance-of-membrane-electrostatics-in-eukaryotes
#10
Matthieu Pierre Platre, Yvon Jaillais
A wide range of signaling processes occurs at the cell surface through the reversible association of proteins from the cytosol to the plasma membrane. Some low abundant lipids are enriched at the membrane of specific compartments and thereby contribute to the identity of cell organelles by acting as biochemical landmarks. Lipids also influence membrane biophysical properties, which emerge as an important feature in specifying cellular territories. Such parameters are crucial for signal transduction and include lipid packing, membrane curvature and electrostatics...
February 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28096331/one-step-design-of-a-stable-variant-of-the-malaria-invasion-protein-rh5-for-use-as-a-vaccine-immunogen
#11
Ivan Campeotto, Adi Goldenzweig, Jack Davey, Lea Barfod, Jennifer M Marshall, Sarah E Silk, Katherine E Wright, Simon J Draper, Matthew K Higgins, Sarel J Fleishman
Many promising vaccine candidates from pathogenic viruses, bacteria, and parasites are unstable and cannot be produced cheaply for clinical use. For instance, Plasmodium falciparum reticulocyte-binding protein homolog 5 (PfRH5) is essential for erythrocyte invasion, is highly conserved among field isolates, and elicits antibodies that neutralize in vitro and protect in an animal model, making it a leading malaria vaccine candidate. However, functional RH5 is only expressible in eukaryotic systems and exhibits moderate temperature tolerance, limiting its usefulness in hot and low-income countries where malaria prevails...
January 31, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28073977/the-effects-of-a-modified-hot-water-treatment-on-anastrepha-ludens-diptera-tephritidae-infested-mango
#12
Emilio Hernández, Marysol Aceituno-Medina, Jorge Toledo, Bigail Bravo, José Caro-Corrales, Pablo Montoya, Robert Mangan
The Mexican fruit fly, Anastrepha ludens (Loew), is a quarantine pest in mango (Mangifera indica L.) that can be controlled by using a hot water treatment (HWT). This treatment is normally followed by a 30-min hydrocooling (HYC) process that reduces the negative effects that the treatment has on fruit quality. However, if hot water-treated fruits are immediately immersed in water at 21 °C, the survival rate of third-instar A. ludens may be increased. The current approved treatment protocol states that if HYC is used, then treated fruit should undergo an additional 10-min HWT or on platform for 30 min before HYC...
April 1, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28071844/a-vesicle-to-worm-transition-provides-a-new-high-temperature-oil-thickening-mechanism
#13
Matthew J Derry, Oleksandr O Mykhaylyk, Steven P Armes
Diblock copolymer vesicles are prepared via RAFT dispersion polymerization directly in mineral oil. Such vesicles undergo a vesicle-to-worm transition on heating to 150 °C, as judged by TEM and SAXS. Variable-temperature (1) H NMR spectroscopy indicates that this transition is the result of surface plasticization of the membrane-forming block by hot solvent, effectively increasing the volume fraction of the stabilizer block and so reducing the packing parameter for the copolymer chains. The rheological behavior of a 10 % w/w copolymer dispersion in mineral oil is strongly temperature-dependent: the storage modulus increases by five orders of magnitude on heating above the critical gelation temperature of 135 °C, as the non-interacting vesicles are converted into weakly interacting worms...
January 10, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28058480/everyman-s-prostate-phantom-kiwi-fruit-substitute-for-human-prostates-at-magnetic-resonance-imaging-diffusion-weighted-imaging-and-magnetic-resonance-spectroscopy
#14
Ullrich G Mueller-Lisse, Sophie Murer, Ulrike L Mueller-Lisse, Marissa Kuhn, Juergen Scheidler, Michael Scherr
OBJECTIVES: To apply an easy-to-assemble phantom substitute for human prostates in T2-weighted magnetic resonance imaging (T2WI), diffusion-weighted imaging (DWI) and 3D magnetic resonance spectroscopy (MRS). METHODS: Kiwi fruit were fixed with gel hot and cold compress packs on two plastic nursery pots, separated by a plastic plate, and submerged in tap water inside a 1-L open-spout plastic watering can for T2WI (TR/TE 7500/101 ms), DWI (5500/61 ms, ADC b50-800 s/mm(2) map) and MRS (940/145 ms) at 3...
January 5, 2017: European Radiology
https://www.readbyqxmd.com/read/28051342/effects-of-thermal-agent-and-physical-activity-on-muscle-tendon-stiffness-and-effects-combined-with-static-stretching
#15
Kosuke Fujita, Masatoshi Nakamura, Hiroki Umegaki, Takuya Kobayashi, Satoru Nishishita, Hiroki Tanaka, Satoko Ibuki, Noriaki Ichihashi
CONTEXT: A recent review or article reported that thermal agents (TA) or physical activity (PA) can increase range of motion (ROM), and that the combination of TA with stretching is superior to performing stretching only. However, since ROM is affected by the participants' psychological factors, it is questionable whether these studies measured the effect of these intervention on muscle flexibility. By measuring muscle stiffness, we attempted to evaluate the effect these intervention on muscle flexibility...
January 4, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27942126/availability-usage-and-factors-affecting-usage-of-electrophysical-agents-by-physical-therapists-a-regional-cross-sectional-survey
#16
Yuichi Abe, Ah-Cheng Goh, Kei Miyoshi
[Purpose] The aim of this study was to investigate the availability, usage, and factors affecting usage of electrophysical agents by physical therapists in Nagano Prefecture, Japan. [Subjects and Methods] Questionnaires were sent to all 1,571 physical therapists working in 245 institutions within Nagano Prefecture. A total of 1,110 questionnaires were returned, out of which 1,099 (70%) questionnaires containing valid responses were analyzed. Frequencies and percentages were calculated for 22 modalities with regards to availability, usage, rate of usage, and confidence level in usage...
November 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27925258/ohmic-heating-of-an-electrically-conductive-food-package
#17
Kanyawee Kanogchaipramot, Kullanart Tongkhao, Tanaboon Sajjaanantakul, Pitiya Kamonpatana
Ohmic heating through an electrically conductive food package is a new approach to heat the food and its package as a whole after packing to avoid post-process contamination and to serve consumer needs for convenience. This process has been successfully completed using polymer film integrated with an electrically conductive film to form a conductive package. Orange juice packed in the conductive package surrounded with a conductive medium was pasteurized in an ohmic heater. A mathematical model was developed to simulate the temperature distribution within the package and its surroundings...
December 2016: Journal of Food Science
https://www.readbyqxmd.com/read/27898256/comparative-study-of-the-physiotherapeutic-and-drug-protocol-and-low-level-laser-irradiation-in-the-treatment-of-pain-associated-with-temporomandibular-dysfunction
#18
Marcos Fernando Xisto Braga Cavalcanti, Uoston Holder Silva, Ernesto Cesar Pinto Leal-Junior, Rodrigo A B Lopes-Martins, Rodrigo Labat Marcos, Rodney Capp Pallotta, Francesca Diomede, Oriana Trubiani, Natalia De Isla, Lucio Frigo
BACKGROUND: The temporomandibular joint (TMJ) is a structure of the craniofacial complex affected by neurological diseases. Orthopedic and musculoskeletal changes can also cause temporomandibular disorders (TMD) and pain. Low-level laser (LLL) therapy has been studied in the treatment of temporomandibular jaw (TMJ) dysfunction, and controversial results were obtained. OBJECTIVE: The objective of this work was comparing the physiotherapeutic and drug protocol (PDP) to LLL therapy in the treatment of pain associated with TMD...
December 2016: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/27886641/comparison-of-hot-versus-cold-boning-of-beef-carcasses-on-bacterial-growth-and-the-risk-of-blown-pack-spoilage
#19
Rachael Reid, Séamus Fanning, Paul Whyte, Joe Kerry, Declan Bolton
Primals were prepared from beef Longissimus thoracis et lumborum (LTL), psoas major (PM), quadriceps femoris (QF) and semitendinosus (S) muscles from cold and hot boned carcasses, vacuum-packaged and stored for 42 or 100days at 2°C and 7°C. Storage temperature, carcass or primal surface temperature, pH and aw were monitored. Samples were taken periodically and tested for total viable count mesophilic (TVCm), TVC psychrophilic (TVCp), total Enterobacteriaceae count (TEC), presumptive Pseudomonas spp., lactic acid bacteria (LAB), Clostridium spp...
March 2017: Meat Science
https://www.readbyqxmd.com/read/27870027/hunting-on-a-hot-day-effects-of-temperature-on-interactions-between-african-wild-dogs-and-their-prey
#20
Scott Creel, Nancy M Creel, Andrea M Creel, Bridget M Creel
As global temperatures increase, interactions between species are affected by changes in distribution, abundance and phenology, but also by changes in behavior. The heat dissipation limitation hypothesis suggests that the ability to dissipate heat commonly limits the activity of endotherms, a problem that should be particularly acute for cursorial predators and their prey in equatorial ecosystems. Allometric relationships suggest that heat dissipation should be a stronger constraint for larger species, so that (smaller) predators should be less affected than (larger) prey...
November 2016: Ecology
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