keyword
MENU ▼
Read by QxMD icon Read
search

Volume transmission

keyword
https://www.readbyqxmd.com/read/28727434/ellipsometry-of-colloidal-solutions-new-experimental-setup-and-application-to-metallic-colloids
#1
Yann Battie, Michel Stchakovsky, Aotmane En Naciri, Suzanna Akil, Nouari Chaoui, Laurent Broch
An ellipsometric cell is developed to simultaneously determine the shape distribution, the volume fraction, and the complex refractive index of gold and silver colloids. Simulation reveals that this cell drastically improves the detection limit of ellipsometry. Indeed, Ag and Au nanoparticles (NPs) are detected at the ppmv level. We demonstrate that the NPs shape distribution can be estimated from ellipsometric measurements by analyzing them with a shape distributed effective medium theory (SDEMT). The obtained distributions from ellipsometry are in agreement with those deduced from transmission electron microcopy (TEM)...
July 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28715426/community-effectiveness-of-pyriproxyfen-as-a-dengue-vector-control-method-a-systematic-review
#2
Dorit Maoz, Tara Ward, Moody Samuel, Pie Müller, Silvia Runge-Ranzinger, Joao Toledo, Ross Boyce, Raman Velayudhan, Olaf Horstick
BACKGROUND: Vector control is the only widely utilised method for primary prevention and control of dengue. The use of pyriproxyfen may be promising, and autodissemination approach may reach hard to reach breeding places. It offers a unique mode of action (juvenile hormone mimic) and as an additional tool for the management of insecticide resistance among Aedes vectors. However, evidence of efficacy and community effectiveness (CE) remains limited. OBJECTIVE: The aim of this systematic review is to compile and analyse the existing literature for evidence on the CE of pyriproxyfen as a vector control method for reducing Ae...
July 17, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28712402/-xinfeng-capsule-improves-lung-function-by-regulating-notch-jagged-hes-axis-of-type-ii-alveolar-epithelial-cells-in-adjuvant-arthritis-rats
#3
Lei Wan, Jian Liu, Chuanbing Huang, Wandong Zhang, Yajun Qi, Xiaojun Zhang
Objective To observe the effect of Xinfeng Capsule (XFC) on Notch/Jagged-HES of type II alveolar epithelial cells (AECII). Methods Rats were divided for four groups: normal control (NC) group, model control (MC) group, leflunomide (LEF) group, XFC group, with 10 rats in each group. Complete Freund's adjuvant (CFA) was injected in the right foot plantar skin of each rat except for the NC group. After adjuvant arthritis was successfully induced, LEF group was given LEF (0.5 mg/100 g), and XFC group was treated with XFC (0...
July 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28711480/commissioning-of-small-field-size-radiosurgery-cones-in-a-6-mv-flattening-filter-free-beam
#4
Juan Diego Azcona, Benigno Barbés, Verónica Morán, Javier Burguete
This study aimed to describe the commissioning of small field size radiosurgery cones in a 6-MV flattening filter free (FFF) beam and report our measured values. Four radiosurgery cones of diameters 5, 10, 12.5, and 15 mm supplied by Elekta Medical were commissioned in a 6-MV FFF beam from an Elekta Versa linear accelerator. The extraction of a reference signal for measuring small fields in scanning mode is challenging. A transmission chamber was attached to the lower part of the collimators and used for percentage depth dose (PDD) and profile measurements in scanning mode with a stereotactic diode...
July 12, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28711193/nociceptin-receptors-in-alcohol-use-disorders-a%C3%A2-positron-emission-tomography-study-using-11-c-nop-1a
#5
Rajesh Narendran, Roberto Ciccocioppo, Brian Lopresti, Jennifer Paris, Michael L Himes, N Scott Mason
BACKGROUND: The neuropeptide transmitter nociceptin, which binds to the nociceptin/orphanin FQ peptide (NOP) receptor, is a core component of the brain's antistress system. Nociceptin exerts its antistress effect by counteracting the functions of corticotropin-releasing factor, the primary stress-mediating neuropeptide in the brain. Basic investigations support a role for medications that target nociceptin receptors in the treatment of alcohol use disorders. Thus, it is of high interest to measure the in vivo status of NOP receptors in individuals with alcohol use disorders...
May 31, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28711187/development-of-an-in-vitro-diaphragm-motion-reproduction-system
#6
Ai-Ho Liao, Ho-Chiao Chuang, Ming-Chih Shih, Hsiao-Yu Hsu, Der-Chi Tien, Chia-Chun Kuo, Shiu-Chen Jeng, Jeng-Fong Chiou
This study developed an in vitro diaphragm motion reproduction system (IVDMRS) based on noninvasive and real-time ultrasound imaging to track the internal displacement of the human diaphragm and diaphragm phantoms with a respiration simulation system (RSS). An ultrasound image tracking algorithm (UITA) was used to retrieve the displacement data of the tracking target and reproduce the diaphragm motion in real time using a red laser to irradiate the diaphragm phantom in vitro. This study also recorded the respiration patterns in 10 volunteers...
July 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28710834/ultrastructure-of-skeletal-muscles-in-mice-lacking-muscle-specific-vegf-expression
#7
Oliver Baum, Lena Jentsch, Adolfo Odriozola, Stefan A Tschanz, I Mark Olfert
Vascular endothelial growth factor-A (VEGF) influences several physiological processes including endothelial cell function and maintenance of organ/tissue capillarity. While the functional aspects of VEGF were vigorously investigated, only little detail is known on structural integrity of skeletal muscle fibers and capillaries in mice lacking VEGF expression in their muscles. Therefore, we assessed systematically the architecture of the glycolytic plantaris and the oxidative soleus muscles obtained from muscle-specific VEGF knockout (mVEGF-KO, n=7) mice and their wild-type (WT, n=7) littermates by morphometry after transmission electron microscopy...
July 15, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28708378/synthesis-of-highly-conductive-uniformly-silver-coated-carbon-nanofibers-by-electroless-deposition
#8
Xavier Cauchy, Jolanta Ewa Klemberg-Sapieha, Daniel Therriault
Noble metal coated carbon-based nanoparticles when used as electrically conductive fillers have the potential to provide excellent conductivity without the high weight and cost normally associated with metals such as silver and gold. To this effect, many attempts were made to deposit uniform layers of metals on core nanoparticles with an emphasis on silver for its high conductivity. The results so far were disheartening with the metal morphology being better described as a decoration than a coating with small effects on the electrical conductivity of the bulk particles...
July 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28708015/relationship-between-ppar%C3%AE-mrna-expression-and-mitochondrial-respiratory-function-and-ultrastructure-of-the-skeletal-muscle-of-patients-with-copd
#9
Jian-Qing Zhang, Xiang-Yu Long, Yu Xie, Zhi-Huan Zhao, Li-Zhou Fang, Ling Liu, Wei-Ping Fu, Jing-Kui Shu, Jiang-Hai Wu, Lu-Ming Dai
Peripheral muscle dysfunction is an important complication in patients with chronic obstructive pulmonary disease (COPD). The objective of this study was to explore the relationship between the levels of peroxisome proliferator-activated receptor α (PPARα) mRNA expression and the respiratory function and ultrastructure of mitochondria in the vastus lateralis of patients with COPD. Vastus lateralis biopsies were performed on 14 patients with COPD and 6 control subjects with normal lung function. PPARα mRNA levels in the muscle tissue were detected by real-time PCR...
July 14, 2017: Bioengineered
https://www.readbyqxmd.com/read/28705695/modeling-extracellular-fields-for-a-three-dimensional-network-of-cells-using-neuron
#10
Shailesh Appukuttan, Keith L Brain, Rohit Manchanda
BACKGROUND: Computational modeling of biological cells usually ignores their extracellular fields, assuming them to be inconsequential. Though such an assumption might be justified in certain cases, it is debatable for networks of tightly packed cells, such as in the central nervous system and the syncytial tissues of cardiac and smooth muscle. NEW METHOD: In the present work, we demonstrate a technique to couple the extracellular fields of individual cells within the NEURON simulation environment...
July 10, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28705217/monitoring-clinical-and-microbiological-evolution-of-a-cystic-fibrosis-patient-over-26%C3%A2-years-experience-of-a-brazilian-cf-centre
#11
Cassiana da Costa Ferreira Leite, Tania Wrobel Folescu, Mônica de Cássia Firmida, Renata Wrobel Folescu Cohen, Robson Souza Leão, Flávia Alvim Dutra de Freitas, Rodolpho Mattos Albano, Claudia Henrique da Costa, Elizabeth Andrade Marques
BACKGROUND: Burkholderia cepacia complex is a group of opportunistic pathogens in cystic fibrosis (CF) patients believed to be associated with poor prognosis and patient-to-patient transmissibility. Little is known about clinical outcomes after B. vietnamiensis chronic colonization/infection. CASE PRESENTATION: A 33 yo male patient had diagnosis of CF by 7 yo, after recurrent pneumonia during infancy and lobectomy (left upper lobe) at 6 yo. Burkholderia cepacia complex (Bcc) was first isolated by 13 yo, and the patient fulfilled the criteria for chronic colonization by 15 yo...
July 14, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28705148/correlates-of-facility-delivery-for-rural-hiv-positive-pregnant-women-enrolled-in-the-moment-nigeria-prospective-cohort-study
#12
Nadia A Sam-Agudu, Christopher Isah, Chinenye Fan-Osuala, Salome Erekaha, Habib O Ramadhani, Udochisom Anaba, Olusegun A Adeyemi, Grace Manji-Obadiah, Daniel Lee, Llewellyn J Cornelius, Manhattan Charurat
BACKGROUND: Low rates of maternal healthcare service utilization, including facility delivery, may impede progress in the prevention of mother-to-child transmission of HIV (PMTCT) and in reducing maternal and infant mortality. The MoMent (Mother Mentor) study investigated the impact of structured peer support on early infant diagnosis presentation and postpartum maternal retention in PMTCT care in rural Nigeria. This paper describes baseline characteristics and correlates of facility delivery among MoMent study participants...
July 14, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28696350/synthesis-and-study-of-fe-doped-bi%C3%A2-s%C3%A2-semimagnetic-nanocrystals-embedded-in-a-glass-matrix
#13
Ricardo S Silva, Hanna D Mikhail, Eder V Guimarães, Elis R Gonçalves, Nilo F Cano, Noelio O Dantas
Iron-doped bismuth sulphide (Bi2-xFexS₃) nanocrystals have been successfully synthesized in a glass matrix using the fusion method. Transmission electron microscopy images and energy dispersive spectroscopy data clearly show that nanocrystals are formed with an average diameter of 7-9 nm, depending on the thermic treatment time, and contain Fe in their chemical composition. Magnetic force microscopy measurements show magnetic phase contrast patterns, providing further evidence of Fe incorporation in the nanocrystal structure...
July 11, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28693425/cyclic-pao2-oscillations-assessed-in-the-renal-microcirculation-correlation-with-tidal-volume-in-a-porcine-model-of-lung-lavage
#14
Rainer Thomas, Christian Möllmann, Alexander Ziebart, Tanghua Liu, Matthias David, Erik K Hartmann
BACKGROUND: Oscillations of the arterial partial pressure of oxygen induced by varying shunt fractions occur during cyclic alveolar recruitment within the injured lung. Recently, these were proposed as a pathomechanism that may be relevant for remote organ injury following acute respiratory distress syndrome. This study examines the transmission of oxygen oscillations to the renal tissue and their tidal volume dependency. METHODS: Lung injury was induced by repetitive bronchoalveolar lavage in eight anaesthetized pigs...
July 11, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28691435/clinical-and-public-health-implications-of-acute-and-early-hiv-detection-and-treatment-a-scoping-review
#15
Sarah E Rutstein, Jintanat Ananworanich, Sarah Fidler, Cheryl Johnson, Eduard J Sanders, Omar Sued, Asier Saez-Cirion, Christopher D Pilcher, Christophe Fraser, Myron S Cohen, Marco Vitoria, Meg Doherty, Joseph D Tucker
INTRODUCTION: The unchanged global HIV incidence may be related to ignoring acute HIV infection (AHI). This scoping review examines diagnostic, clinical, and public health implications of identifying and treating persons with AHI. METHODS: We searched PubMed, in addition to hand-review of key journals identifying research pertaining to AHI detection and treatment. We focused on the relative contribution of AHI to transmission and the diagnostic, clinical, and public health implications...
June 28, 2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/28690036/hev-and-transfusion-recipient-risk
#16
J Izopet, S Lhomme, S Chapuy-Regaud, J-M Mansuy, N Kamar, F Abravanel
HEV infections are mainly food- and water-borne but transfusion-transmission has occurred in both developing and developed countries. The infection is usually asymptomatic but it can lead to fulminant hepatitis in patients with underlying liver disease and pregnant women living in developing countries. It also causes chronic hepatitis E, with progressive fibrosis and cirrhosis, in approximately 60% of immunocompromised patients infected with HEV genotype 3. The risk of a transfusion-transmitted HEV infection is linked to the frequency of viremia in blood donors, the donor virus load and the volume of plasma in the final transfused blood component...
July 6, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28689313/-137-cs-transmission-imaging-and-segmented-attenuation-corrections-in-a-small-animal-pet-scanner
#17
Ying-Hwey Nai, Takayuki Ose, Miho Shidahara, Hiroshi Watabe
Attenuation correction (AC) is required for accurate quantitative evaluation of small animal PET data. Our objective was to compare three AC methods in the small animal Clairvivo-PET scanner. The three AC methods involve applying attenuation coefficient maps generated by simulating a cylindrical map (SAC), segmenting the emission data (ESAC), and segmenting the transmission data (TSAC), imaged using a (137)Cs single-photon source. Investigation was carried out using a 65 mm uniform cylinder and an NEMA NU4 2008 mouse phantom, filled with water or tungsten liquid, to mimic bone...
July 8, 2017: Radiological Physics and Technology
https://www.readbyqxmd.com/read/28685470/construction-of-0-15-tesla-overhauser-enhanced-mri
#18
Yuumi Tokunaga, Motonao Nakao, Tatsuya Naganuma, Kazuhiro Ichikawa
Overhauser enhanced MRI (OMRI) is one of the free radical imaging technologies and has been used in biomedical research such as for partial oxygen measurements in tumor, and redox status in acute oxidative diseases. The external magnetic field of OMRI is frequently in the range of 5-10 mTesla to ensure microwave penetration into small animals, and the S/N ratio is limited. In this study, a 0.15 Tesla OMRI was constructed and tested to improve the S/N ratio for a small sample, or skin measurement. Specification of the main magnet was as follows: 0...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28683113/impact-of-the-three-gorges-project-on-ecological-environment-changes-and-snail-distribution-in-dongting-lake-area
#19
Feiyue Li, Shujuan Ma, Yiyi Li, Hongzhuan Tan, Xunya Hou, Guanghui Ren, Kaiping Cai
BACKGROUND: The Three Gorges Dam (TGD) is a remarkable, far-reaching project in China. This study was conducted to assess the impact of TGD on changes in the ecological environment, snail distribution and schistosomiasis transmission in Dongting Lake area. METHODS: Hydrological data were collected from 12 monitoring sites in Hunan section of Yangtze River before and after TGD was established. Data on snail distribution and human schistosomiasis infection were also collected...
July 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28682057/self-assembled-framework-formed-during-lithiation-of-sns2-nanoplates-revealed-by-in-situ-electron-microscopy
#20
Kuibo Yin, Minghao Zhang, Zachary D Hood, Jie Pan, Ying Shirley Meng, Miaofang Chi
Lithium-ion batteries (LIBs) commercially dominate portable energy storage and have been extended to hybrid/electric vehicles by utilizing electrode materials with enhanced energy density. However, the energy density and cycling life of LIBs must extend beyond the current reach of commercial electrodes to meet the performance requirements for transportation applications. Carbon-based anodes, serving as the main negative electrodes in LIBs, have an intrinsic capacity limitation due to the intercalation mechanism...
July 6, 2017: Accounts of Chemical Research
keyword
keyword
24249
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"