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https://www.readbyqxmd.com/read/28806626/cryopreservation-of-cynomolgus-macaque-macaca-fascicularis-sperm-with-glycerol-and-ethylene-glycol-and-its-effect-on-sperm-specific-ion-channels-catsper-and-hv1
#1
Bingbing Chen, Shanshan Li, Yaping Yan, Yanchao Duan, Shaohui Chang, Hong Wang, Weizhi Ji, Xin Wu, Wei Si
The cryoprotective agent (CPA) is one of the most important factors that affects the cryosurvival of sperm. The aim of the present study was to compare two different CPAs, glycerol (Gly) and ethylene glycol (EG), on the cryopreservation of cynomolgus macaques sperm and evaluate the effects of cryopreservation on sperm motility, acrosomal integrity, DNA integrity, mitochondrial function and the sperm membrane ion channels CatSper and Hv1. Compared to fresh sperm, cryopreservation with either 0.7 M Gly or EG decreased the sperm motility (79...
August 8, 2017: Theriogenology
https://www.readbyqxmd.com/read/28806545/improvement-of-the-drought-indicators-system-in-the-j%C3%A3%C2%BAcar-river-basin-spain
#2
Tatiana Ortega-Gómez, Miguel A Pérez-Martín, Teodoro Estrela
Droughts are one of the gravest natural threats currently existing in the world and their occurrence and intensity might be exacerbated in the coming years due to climate change. The severe impacts that droughts cause to inland water resources and to the associated socio-economic activities justify the continuous monitoring of the drought. The case study presented shows a practical application of a distributed drought monitoring system implemented in a real river basin district, the Júcar River Basin District (43,000km(2)), where drought periods of marked intensity have occurred historically and the climate ranges from humid in the north to semiarid in the south...
August 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28806375/physics-and-histologic-evaluation-of-rotary-ultrasonic-and-sonic-instruments
#3
Emanuele Ruga, Ettore Amerio, Vincenzo Carbone, Marco Volante, Sergio Gandolfo
Rotary instruments (RIs) are the most commonly used to perform osteotomies in many fields of medicine. Owing to a new interest in performing a minimally invasive surgery, over last fifteen years new devices have been used in oral surgery such as ultrasonic instruments (UIs) and, lately, sonic instruments (SIs). Nowadays, bone preservation and regeneration are paramount in many clinical situations and, consequently, it is crucial to rely upon instruments, which cause the least tissue damage during the surgery...
August 10, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28806057/rational-design-and-multi-biological-profiling-of-novel-donepezil-trolox-hybrids-against-alzheimer-s-disease-with-cholinergic-antioxidant-neuroprotective-and-cognition-enhancing-properties
#4
Pei Cai, Si-Qiang Fang, Xue-Lian Yang, Jia-Jia Wu, Qiao-Hong Liu, Hao Hong, Xiao-Bing Wang, Lingyi Kong
A novel series of donepezil-trolox hybrids were designed, synthesized and evaluated as multifunctional ligands against Alzheimer's disease (AD). Biological assays showed that these derivatives possessed moderate to good inhibitory activities against acetylcholinesterase (AChE) and monoamine oxidase B (MAO-B) as well as remarkable antioxidant effects. The optimal compound 6d exhibited balanced functions with good inhibition against hAChE (IC50 = 0.54 μM) and hMAO-B (IC50 = 4.3 μM), significant antioxidant activity (41...
August 14, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28805781/-surgical-treatment-of-hip-subluxation-and-luxation-in-children-with-spinal-hernia-consequences
#5
S V Ivanov, A G Baindurashvili, V M Kenis
AIM: To determine surgical tactics for hip subluxation and luxation in children with spinal hernia consequences. MATERIAL AND METHODS: The study included 134 patients with hip subluxation and luxation with consequences of cerebrospinal hernias who were examined at the Turner Research Institute for Children's Orthopedics in 2006-2016. The main group consisted of 69 patients who received surgical treatment with hip joint stabilization. The control group included 65 children without surgery...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28805736/artificial-structural-color-pixels-a-review
#6
REVIEW
Yuqian Zhao, Yong Zhao, Sheng Hu, Jiangtao Lv, Yu Ying, Gediminas Gervinskas, Guangyuan Si
Inspired by natural photonic structures (Morpho butterfly, for instance), researchers have demonstrated varying artificial color display devices using different designs. Photonic-crystal/plasmonic color filters have drawn increasing attention most recently. In this review article, we show the developing trend of artificial structural color pixels from photonic crystals to plasmonic nanostructures. Such devices normally utilize the distinctive optical features of photonic/plasmon resonance, resulting in high compatibility with current display and imaging technologies...
August 14, 2017: Materials
https://www.readbyqxmd.com/read/28805727/leaf-physiological-and-proteomic-analysis-to-elucidate-silicon-induced-adaptive-response-under-salt-stress-in-rosa-hybrida-rock-fire
#7
Prabhakaran Soundararajan, Abinaya Manivannan, Chung Ho Ko, Sowbiya Muneer, Byoung Ryong Jeong
Beneficial effects of silicon (Si) on growth and development have been witnessed in several plants. Nevertheless, studies on roses are merely reported. Therefore, the present investigation was carried out to illustrate the impact of Si on photosynthesis, antioxidant defense and leaf proteome of rose under salinity stress. In vitro-grown, acclimatized Rosa hybrida 'Rock Fire' were hydroponically treated with four treatments, such as control, Si (1.8 mM), NaCl (50 mM), and Si+NaCl. After 15 days, the consequences of salinity stress and the response of Si addition were analyzed...
August 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28805724/electroless-nickel-deposition-for-front-side-metallization-of-silicon-solar-cells
#8
Shu Huei Hsieh, Jhong Min Hsieh, Wen Jauh Chen, Chia Chih Chuang
In this work, nickel thin films were deposited on texture silicon by electroless plated deposition. The electroless-deposited Ni layers were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive x-ray spectroscopy (EDS), X-ray diffraction analysis (XRD), and sheet resistance measurement. The results indicate that the dominant phase was Ni₂Si and NiSi in samples annealed at 300-800 °C. Sheet resistance values were found to correlate well with the surface morphology obtained by SEM and the results of XRD diffraction...
August 14, 2017: Materials
https://www.readbyqxmd.com/read/28805656/magnetically-tuned-photoelectric-response-observed-in-nanoscale-co-sio2-si-structures
#9
Qian Zhang, Jieqiong Hu, Diyuan Zheng, Anhua Dong, Hui Wang
We report a large magnetically tuned lateral photovoltaic effect (LPE) observed in nanoscale Co-SiO2-Si structures. This tunable effect strongly depends on the location of two electrodes. The change ratio of lateral photovoltage (LPV) can reach up to a considerable value of 94.15% under external magnetic field of 1.77 Teslas. This phenomenon is mainly ascribed to the asymmetric Lorentz force acting on the photo-current in the region of edge area of the nanostructure. It adds a new functionality to the traditional LPE-based devices, and provides a potential prospect for the development of multifunctional high-sensitive photoelectric devices or sensors...
August 14, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28805655/transfer-of-cvd-grown-graphene-for-room-temperature-gas-sensors
#10
Federica Rigoni, Rishi Maiti, Camilla Baratto, Maurizio Donarelli, Jennifer MacLeod, Bahrati Gupta, Mei Lyu, Andrea Ponzoni, Giorgio Sberveglieri, Nunzio Motta, Guido Faglia
An easy transfer procedure to obtain graphene-based gas sensing devices operating at room temperature is presented. Starting from chemical vapor deposition (CVD)-grown graphene on copper foil, we obtained single layer graphene which could be transferred onto arbitrary substrates. In particular, we placed single layer graphene on top of a SiO<sub>2</sub>/Si substrate with pre-patterned Pt electrodes to realize a chemiresistor gas sensor able to operate at room temperature. The responses to ammonia (10, 20, 30 ppm) and nitrogen dioxide (1, 2, 3 ppm) are shown at different values of relative humidity, in dark and under 254 nm UV light...
August 14, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28805652/alloy-multilayers-and-ternary-nanostructures-by-direct-write-approach
#11
Fabrizio Porrati, Roland Sachser, Gian Carlo Gazzadi, Stefano Frabboni, Andreas Terfort, Michael Huth
The fabrication of nanopatterned multilayers, as used in optical and magnetic applications, is usually achieved by two independent steps, which consist in the preparation of multilayer films and in the successive patterning by means of lithography and etching processes. Here we show that multilayer nanostructures can be fabricated by using focused electron beam induced deposition (FEBID), which allows the direct writing of nanostructures of any desired shape with nanoscale resolution. In particular, [Co2Fe=Si]n multilayers are prepared by the alternating deposition from the metal carbonyl precursors, HFeCo3(CO)12 and Fe(CO)5, and neopentasilane, Si5H12...
August 14, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28805041/direct-microrolling-processing-on-a-silicon-wafer
#12
Kanna Aoki, Keita Ishiguro, Masaki Denokami, Yuya Tanahashi, Kentaro Furusawa, Norihiko Sekine, Tadafumi Adschiri, Minoru Fujii
Although, varieties of micro- to nanoscale fabrication technologies have been invented and refined for silicon (Si) processing because Si is the basic material of integrated circuits, the layouts are based on layer-by-layer approaches, making it difficult to realize three-dimensional (3D) structures with complicated shapes normal to the planar surface (along the out-of-plane direction) of the wafers used. Here, a novel and direct Si-processing technology that enables to bend thin layers of Si surfaces into various 3D curved structures at the micrometer scale is introduced...
August 14, 2017: Small
https://www.readbyqxmd.com/read/28804799/ti2au2c-and-ti3au2c2-formed-by-solid-state-reaction-of-gold-with-ti2alc-and-ti3alc2
#13
H Fashandi, C-C Lai, M Dahlqvist, J Lu, J Rosen, L Hultman, G Greczynski, M Andersson, A Lloyd Spetz, P Eklund
Incorporation of layers of noble metals in non-van der Waals layered materials may be used to form novel layered compounds. Recently, we demonstrated a high-temperature-induced exchange process of Au with Si in the layered phase Ti3SiC2, resulting in the formation of Ti3AuC2 and Ti3Au2C2. Here, we generalize this technique showing that Au/Ti2AlC and Au/Ti3AlC2 undergo an exchange reaction at 650 °C to form Ti2Au2C and Ti3Au2C2 and determine their structures by electron microscopy, X-ray diffraction, and ab initio calculations...
August 14, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28804611/antimalarial-evaluation-of-selected-medicinal-plant-extracts-used-in-iranian-traditional-medicine
#14
Mohammad Hossein Feiz Haddad, Hamidreza Mahbodfar, Zahra Zamani, Ali Ramazani
OBJECTIVES: In an attempt to discover new natural active extracts against malaria parasites, the present study evaluated the antiplasmodial properties of selected plants based on Iranian traditional medicine. MATERIALS AND METHODS: Ten plant species found in Iran were selected and collected based on the available literature about the Iranian traditional medicine. The methanolic extracts of these plants were investigated for in vitro antimalarial properties against chloroquine-sensitive (3D7) and multi-drug resistant (K1) strains of Plasmodium falciparum...
April 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28804566/microrna-93-inhibits-apoptosis-and-promotes-proliferation-invasion-and-migration-of-renal-cell-carcinoma-achn-cells-via-the-tgf-%C3%AE-smad-signaling-pathway-by-targeting-runx3
#15
Li-Jie Liu, Jian-Jun Yu, Xiao-Lin Xu
We investigated the ability of microRNA-93 (miR-93) to influence proliferation, invasion, migration, and apoptosisofrenal cell carcinoma (RCC) cells via transforming growth factor-β/solvated metal atom dispersed (TGF-β/Smad) signaling by targeting runt-related transcription factor 3 (RUNX3). RCC tissues with corresponding adjacent normal tissues were collected from 249 RCC patients. And normal renal tissues were collected from patients without RCC who received nephrectomy. The RCC cell line ACHN was treated with miR-93 mimic, mimic-negative control (NC), miR-93 inhibitor, inhibitor-NC, and miR-93 inhibitor + small interfering RNA (siRNA) against RUNX3 (si-RUNX3)...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28804525/mdts-automatic-complex-materials-design-using-monte-carlo-tree-search
#16
Thaer M Dieb, Shenghong Ju, Kazuki Yoshizoe, Zhufeng Hou, Junichiro Shiomi, Koji Tsuda
Complex materials design is often represented as a black-box combinatorial optimization problem. In this paper, we present a novel python library called MDTS (Materials Design using Tree Search). Our algorithm employs a Monte Carlo tree search approach, which has shown exceptional performance in computer Go game. Unlike evolutionary algorithms that require user intervention to set parameters appropriately, MDTS has no tuning parameters and works autonomously in various problems. In comparison to a Bayesian optimization package, our algorithm showed competitive search efficiency and superior scalability...
2017: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/28804504/efficacy-of-auricular-acupressure-for-chronic-low-back-pain-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#17
REVIEW
Li-Hua Yang, Pei-Bei Duan, Qing-Mei Hou, Shi-Zheng Du, Jin-Fang Sun, Si-Juan Mei, Xiao-Qing Wang
OBJECTIVES: To identify the efficacy of auricular acupressure on pain and disability for chronic LBP by systematic review. METHODS: A search of randomized controlled trials was conducted in four English medical electronic databases and three Chinese databases. Two reviewers independently retrieved related studies, assessed the methodological quality, and extracted data with a standardized data form. Meta-analyses were performed using all time-points meta-analysis...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28803879/pathway-profiles-based-on-gene-set-enrichment-analysis-in-the-honey-bee-apis-mellifera-under-brood-rearing-suppressed-conditions
#18
Kyungmun Kim, Ju Hyeon Kim, Young Ho Kim, Seong-Eui Hong, Si Hyeock Lee
Perturbation of normal behaviors in honey bee colonies by any external factor can immediately reduce the colony's capacity for brood rearing, which can eventually lead to colony collapse. To investigate the effects of brood-rearing suppression on the biology of honey bee workers, gene-set enrichment analysis of the transcriptomes of worker bees with or without suppressed brood rearing was performed. When brood rearing was suppressed, pathways associated with both protein degradation and synthesis were simultaneously over-represented in both nurses and foragers, and their overall pathway representation profiles resembled those of normal foragers and nurses, respectively...
August 10, 2017: Genomics
https://www.readbyqxmd.com/read/28803516/well-defined-protein-immobilization-on-photo-responsive-phosphorylcholine-polymer-surfaces
#19
Masako Tanaka, Shugo Kawai, Yasuhiko Iwasaki
In this study, we propose a new polymer substrate that is able to covalently couple intended proteins and reduce nonspecific protein fouling. Poly[2-methacryloyloxyethyl phosphorylcholine (MPC)-ran-N-methacryloyl-(L)-tyrosinemethylester (MAT)] [P(MPC/MAT)] was synthesized by free-radical polymerization. The photooxidation of the MAT unit in the copolymer was observed under ultraviolet (UV) light at 254 nm. P(MPC/MAT) was spin-coated on silicon (Si) and gold substrates. Without UV irradiation of the polymer-coated surface, P(MPC/MAT) physisorbed on the substrates, and the thickness of the polymer layer was less than 10 nm, regardless of the polymer concentration in the coating solution...
August 14, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28803178/treatment-of-unstable-thoracolumbar-fractures-does-fracture-level-fixation-accelerate-the-bone-healing
#20
Zühtü Özbek, Emre Özkara, Hasan Önner, Gültekin Baş, İpek Canan Erman, Hülya Özen, Emre Entok, Ali Arslantaş
OBJECTIVE: This study aimed to investigate the effect of fusion on short segment including fractured level (SSIFL) and long segment (LS) transpedicular fixation after acute thoracolumbar junction (TLJ) burst fractures. The two-year clinical and radiological follow-up results of the two groups were also compared. METHODS: Seventy-four patients were randomized into one of two groups: SSIFL (n: 39) or LS (n: 35). The SSIFL group included one level above and one level below, including the fracture level, while the LS group included two levels above and two levels below, excluding the fracture level, for the transpedicular fixation...
August 9, 2017: World Neurosurgery
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