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Alice Ricardo-Silva, Teresa Cristina Monte Gonçalves, José Francisco Luitgards-Moura, Catarina Macedo Lopes, Silvano Pedrosa da Silva, Amanda Queiroz Bastos, Nathalia Coelho Vargas, Maria-Rosa Goreti Freitas
During a medical entomology course in Boa Vista, Roraima, colonies of Triatoma maculata closely associated with pigeon nests were observed in concrete air-conditioner box located on the external plastered and cemented walls of a modern brick-built apartment block. In only one eight-hole ceramic brick, located inside one air-conditioner box, 127 specimens of T. maculata were collected. T. maculata is a recognised vector of Trypanosoma cruzi in the surrounding area and its domiciliation increases the risk of Chagas disease transmission...
October 13, 2016: Memórias do Instituto Oswaldo Cruz
Pierre-Olivier Barale, Paolo Mora, Marie-Hélène Errera, Raphaëlle Ores, Michel Pâques, José-Alain Sahel
PURPOSE: We discuss a modified surgical procedure for the treatment of macular folds complicating retinal reattachment surgery. METHODS: To facilitate the completion of the macular redetachment and the subsequent unrolling of the fold, we propose the subretinal injection, in addition to the conventional balanced salt solution, of filtered air as an original approach. In the presence of a subretinal air bubble, the action of gravity on the perfluorocarbon liquid in the vitreous cavity combined with an active globe manipulation proved to be very effective for flattening the central retina...
October 18, 2016: Retinal Cases & Brief Reports
Xunzhi Li, Wenchuan Ma, Alexander A Shestopalov
This study describes formation of functional organic monolayers on hard and soft interfaces via a vapor-phase carbene insertion into Si-H and C-H bonds. We demonstrate that functional diazirine molecules can be used to form mono-molecular coatings on silicon, silicon nitride and urethane-acrylate polymers under mild vacuum conditions and exposure to UV light. We investigate the molecular coverage and the long-term stability of the resulting monolayers in air, isopropanol and water. Our results suggest that vapor-phase carbenylation can be used as a complementary technology to the traditional self-assembly, permitting functionalization of various passivated substrates with stable and functional molecular coatings under mild and scalable conditions...
October 19, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
Amanda R Tarullo, Joseph R Isler, Carmen Condon, Kimon Violaris, Peter D Balsam, William P Fifer
Using an eyelid conditioning paradigm modeled after that developed by Little, Lipsitt, and Rovee-Collier (1984), Fifer et al. (2010) demonstrated that newborn infants learn during sleep. This study examined the role of sleep state in neonatal learning. We recorded electroencephalogram (EEG), respiratory, and cardiovascular activity from sleeping full term newborn infants during delay eyelid conditioning. In the experimental group (n = 21), a tone was paired with an air puff to the eye. Consistent with Fifer et al...
November 2016: Developmental Psychobiology
Ying Wang, Yang Wang, Kai Jiang, Qian Zhang, Dong Li
A simple and efficient transition-metal-free oxidative halogenation (Cl, Br) of the C5 C-H bond of 8-aminoquinoline amides has been developed. This method employed low-cost and innoxious sodium halides as halogenation reagents and oxone as an oxidant. The reactions demonstrated air and moisture tolerance, and good functional group compatibility, giving highly selective C5-halogenated products in good to excellent yields.
October 18, 2016: Organic & Biomolecular Chemistry
Nelson Trieu, Ryan Xia, Robert Loneragan, Lloyd Ridley, Joseph Trieu
INTRODUCTION: We report a series of patients who had computed tomography (CT) of their brains which showed an uncommon artefact caused by excess air bubbles in the cooling oil around the X-ray tube. METHODS: In November and December 2015, it was recognised that artefacts appearing on CT brain images acquired at our department were caused by a scanner fault. The test images were reviewed and the service engineer for the CT scanner was questioned about the artefact cause...
October 18, 2016: Journal of Medical Imaging and Radiation Oncology
Wen Zhou, John Thompson, Clifford Leznoff, Daniel Bernard Leznoff
The preparation and structural characterization of a series of chromium phthalocyanine complexes with multiple metal and ring oxidation states was achieved using PcCr(II) (1) (Pc = phthalocyanine) or PcCr(II)(THF)2 (1·THF2) as starting material. The reaction of soluble 1·THF2 with Br2 or I2 gave the PcCr(III) halide complexes PcCrX(THF) (X= I/I3, Br) (3, 4). Treatment of 1 with one-half equivalent of PhIO or air generated the dinuclear [PcCr(THF)]2(μ-O) (5), while the addition of one equivalent of AgSbF6 to 1 resulted in oxidation to THF-solvated octahedral [PcCr(III)(THF)2]SbF6 (6)...
October 17, 2016: Chemistry: a European Journal
Monika M K Stojek, Marian Tanofsky-Kraff, Lauren B Shomaker, Nichole R Kelly, Katherine A Thompson, Rim D Mehari, Shannon E Marwitz, Andrew P Demidowich, Ovidiu A Galescu, Sheila M Brady, Susan Z Yanovski, Jack A Yanovski
OBJECTIVE: Adolescent emotional-eating, referring to eating in response to negative affective states, is frequently reported by those with loss of control (LOC) eating. Although LOC eating has been shown to predict exacerbated disordered eating and excess weight/adiposity gain, the extent to which emotional-eating, either alone or in combination with LOC, predicts adverse outcomes has not been determined. Thus, we examined associations of baseline emotional-eating with changes in disordered eating, BMI, and adiposity over 1-year, and to what degree the presence or absence of baseline LOC moderated these associations...
October 18, 2016: International Journal of Eating Disorders
Ulvi K Gursoy, Mervi Gursoy, Eija Könönen, Herman O Sintim, Veli-Jukka Uitto, Stina Syrjänen
In construction of epithelial cells as multilayers, the cells are grown submerged to confluence on fibroblast-embedded collagen gels and, then, lifted to air to promote their stratification. We recently demonstrated that gingival epithelial cells form uniform monolayers on semi-permeable nitrocellulose membranes, supported with a semi-solid growth medium, which allows the cells to grow at an air-liquid-solid interface from the beginning of the culturing protocol. In this study, the aim was to further develop our previous model to form a multilayered gingival epithelial culture model...
October 17, 2016: Cytotechnology
John M Frostad, Daniele Tammaro, Luciano Santollani, Simone Bochner de Araujo, Gerald G Fuller
Understanding and enabling the control of the properties of foams is important for a variety of commercial processes and consumer products. In these systems, the role of surface active compounds has been the subject of many investigations using a wide range of techniques. The study of their influence on simplified geometries such as two bubbles in a liquid or a thin film of solution (such as in the well-known Scheludko cell), has yielded important fundamental understanding. Similarly, in this work an interferometric technique is used to study the dynamic evolution of the film formed by a single bubble being pressed against a planar air-liquid interface...
October 18, 2016: Soft Matter
Guang-Lin Zhang, Sheng Wang, Jin-Le Hou, Chong-Jiao Mo, Chen-Jie Que, Qin-Yu Zhu, Jie Dai
Although a lot of titanium oxo-clusters (TOCs) have been synthesized and characterized, research studies on their application properties are still limited. The work described here is not only aimed at the synthesis and crystal structures of the TOCs, but also aimed at exploration of their potential applications in molecule based fluorescence labelling and photocatalysis. Three heterometallic TOC compounds with lanthanide (Ln) elements Sm(iii) (1), Eu(iii) (2) and Gd(iii) (3) are prepared and their cluster structures are characterized as LnTi11 cages...
October 18, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
Soo Won Ko, Jong Seok Lee, Han Sung Choi, Young Gwan Ko, Hoon Pyo Hong
The use of high-pressure air instruments has become more common. Consequently, there have been a number of cases of orbital emphysema caused by contact with high-pressure air. In this case, a 62-year-old male patient visited an emergency medical center after his left eye was shot by an air compressor gun that was used to wash cars. Lacerations were observed in the upper and lower eyelids of his left eye. Radiological examinations revealed orbital emphysema, optic nerve transection, pneumocephalus, and subcutaneous emphysema in the face, neck, shoulder, and mediastinum...
September 2016: Clin Exp Emerg Med
Young Yong Kim, Gu Hyun Kang, Won Hee Kim, Hyun Young Choi, Yong Soo Jang, Young Jae Lee, Jae Guk Kim, Hyeongtae Kim, Gyoung Yong Kim
OBJECTIVE: This study aimed to compare intubation performance between blind intubation through supraglottic airway devices and direct laryngoscopy by novices under manikin simulation. We hypothesized that the intubation time by novices using supraglottic airway devices was superior to that with the Macintosh laryngoscope (MCL). METHODS: A prospective, randomized crossover study was conducted with 95 participants, to evaluate i-gel, air-Q, LMA Fastrach, and MCL devices...
June 2016: Clin Exp Emerg Med
So Ra Kwon, Sang Ook Ha, Young Taeck Oh, You Dong Sohn
The typical presentation of intussusception includes intermittent severe abdominal pain, vomiting, rectal bleeding, and the presence of an abdominal mass. We present a case of intussusception after abdominal blunt trauma along with a literature review. A 4-year-old girl was admitted to the emergency department after a bicycle accident. She complained of progressively worsening abdominal pain, but there was no vomiting, fever, bloody stool, or abdominal mass. She was finally diagnosed with traumatic intussusception by ultrasonography and treated with air reduction...
March 2016: Clin Exp Emerg Med
Lauren C Tabor, Karen M Rosado, Raele Robison, Karen Hegland, Ianessa A Humbert, Emily K Plowman
We examined the impact of expiratory muscle strength training on maximum expiratory pressure, cough spirometry, and disease progression in a 71-year-old male with amyotrophic lateral sclerosis. Maximum expiratory pressure declined 9% over an 8-week sham training period, but subsequently improved by 102% following 8 weeks of expiratory muscle strength training. Improvements in cough spirometry and mitigated disease progression were also observed post expiratory muscle strength training. Improvements in maximum expiratory pressures were maintained 6 months following expiratory muscle strength training and were 79% higher than baseline data obtained 301 days prior...
October 2016: Annals of Clinical and Translational Neurology
Maya B Mathur, Michael Gould, Nayer Khazeni
Background: Direct-to-consumer (DTC) prescription drug advertisements are thought to induce "boomerang effects," meaning they reduce the perceived effectiveness of a potential alternative option: non-pharmaceutical treatment via lifestyle change. Past research has observed such effects using artificially created, text-only advertisements that may not adequate capture the complex, conflicting portrayal of lifestyle change in real television advertisements. In other risk domains, individual "problem status" often moderates boomerang effects, such that subjects who currently engage in the risky behavior exhibit the strongest boomerang effects...
2016: Frontiers in Psychology
Bin Zhang, Jinzhu Zhao, Rong Yang, Zhengmin Qian, Shengwen Liang, Bryan A Bassig, Yiming Zhang, Ke Hu, Shunqing Xu, Guanghui Dong, Tongzhang Zheng, Shaoping Yang
The objective of this study was to evaluate whether high levels of maternal exposure to O3, SO2, NO2, CO are related to increased risk of congenital heart defects (CHDs) in Wuhan, China. The study included mothers living in the central districts of Wuhan during pregnancy over the two-year period from June 10, 2011 to June 9, 2013. For each study participant, we assigned 1-month averages of O3, SO2, NO2 and CO exposure based on measurements obtained from the nearest exposure monitor to the living residence of mothers during their early pregnancy period...
October 18, 2016: Scientific Reports
Mitchell K Monninger, Chrystal A Nguessan, Candace D Blancett, Kathleen A Kuehl, Cynthia A Rossi, Scott P Olschner, Priscilla L Williams, Steven L Goodman, Mei G Sun
Transmission electron microscopy can be used to observe the ultrastructure of viruses and other microbial pathogens with nanometer resolution. In a transmission electron microscope (TEM), the image is created by passing an electron beam through a specimen with contrast generated by electron scattering from dense elements in the specimen. Viruses do not normally contain dense elements, so a negative stain that places dense heavy metal salts around the sample is added to create a dark border. To prepare a virus sample for a negative stain transmission electron microscopy, a virus suspension is applied to a TEM grid specimen support, which is a 3mm diameter fragile specimen screen coated with a few nanometers of plastic film...
October 14, 2016: Journal of Virological Methods
Wan Gao, Jia-Wen Hu, Fang Xu, Can-Jing Wei, Meng-Jiao Shi, Jun Zhao, Jia-Jia Wang, Bo Zhen, Teng-Fei Ji, Jian-Guo Xing, Zheng-Yi Gu, Fang Xu
Four new polyisoprenylated benzoylphloroglucinol derivatives, hyperscabrones J-M (1-4), were isolated from the air-dried aerial parts of Hypericum scabrum. Their structures were elucidated by spectroscopic methods and were subsequently confirmed by comparing with data of known compounds. The absolute configuration of the bicyclo[3.3.1]nonane-2,4,9-trione core was defined by the experimental and calculated electronic circular dichroism (ECD) spectra. The evaluation of their hepatoprotective activities against paracetamol-induced HepG2 cell damage showed that compounds 2 and 4 exhibited significant hepatoprotection at 10μM...
October 14, 2016: Fitoterapia
Natalia D Magnani, Timoteo Marchini, Mariana Garcés, Andrea Mebert, Lourdes Cáceres, Luis Diaz, Martín Desimone, Pablo A Evelson
Several epidemiological studies have shown a positive correlation between daily increases in airborne particulate matter (PM) concentration and the occurrence of respiratory and cardiovascular diseases. Transition metals present in air PM were associated with adverse health effects after PM exposure. The aim of this work was to study lung O2 metabolism after an acute exposure to transition metal-coated nanoparticles (NPs). Female Swiss mice (25g) were intranasally instilled with a suspension of silica NP containing Ni (II), Cd (II), Fe (III), or Cr (VI) at 0, 0...
October 14, 2016: International Journal of Biochemistry & Cell Biology
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