Results 41 to 50 of about 245,363 (260)

Evaluation of microbiological variants of sputum processing and concentration of mycobacteria to optimize the microscopic and imaging diagnosis of tuberculosis

International Journal of Mycobacteriology, 2019
Background: Direct sputum smear is still the first-choice tool for screening of tuberculosis worldwide. Variants of this technique, to improve the sensitivity are desired.
Jorge E Coronel, Christian C Del Carpio, Erwin J Dianderas, Edgar A Florentini, Guillermo L Kemper, Patricia Sheen, Mirko J Zimic   +6 more
doaj   +1 more source

Novel 3D printable powered air purifying respirator for emergency use during PPE shortage of the COVID-19 pandemic: a study protocol and device safety analysis

BMJ Open, 2021
Objectives To design a low-cost 3D printable powered air-purifying respirator (PAPR) that meets National Institute for Occupational Safety and Health (NIOSH) standard for flow rate and Occupational Safety and Health Administration (OSHA) standard for ...
Jorge Nagel, Catherine Gilbert, Juan Duchesne   +2 more
doaj   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

FEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang, Hyo Been Jin, Chang Min Kim, So Yeon Lee, Hyun Ho Park   +4 more
wiley   +1 more source

Experimental study on filtration behavior and control methods of pre-pad CO2 fracturing fluids in shale oil reservoirs

Shiyou shiyan dizhi
To investigate the filtration behavior and control mechanisms of novel carbon dioxide (CO2) fracturingfluid systems suitable for shale reservoirs, systematic comparative experiments were conducted under simulated formation conditions using natural shale ...
Hui CHEN, Xiaopeng CAO, Hongxin ZHANG, Jianhui DUAN, Fei FAN, Junping BEI, Dehui CHEN   +6 more
doaj   +1 more source

Study on the Relationship Between Structure Parameters and Filtration Performance of Polypropylene Meltblown Nonwovens

AUTEX Research Journal, 2020
In this study, polypropylene meltblown nonwoven fabrics with different structure parameters such as fiber diameter, pore size, and areal density were prepared by the industrial production line. The morphology of meltblown nonwoven fibers was evaluated by
Xiao Yuanxiang, Sakib Nazmus, Yue Zhonghua, Wang Yan, Cheng Si, You Jianmin, Militky Jiri, Venkataraman Mohanapriya, Zhu Guocheng   +8 more
doaj   +1 more source

Effect of Temperature on the Structure and Filtration Performance of Polypropylene Melt-Blown Nonwovens

AUTEX Research Journal, 2021
By applying the simultaneous corona-temperature treatment, the effect of electret temperature on the structure and filtration properties of melt-blown nonwovens was investigated. Fiber diameter, pore size, thickness, areal weight, porosity, crystallinity,
Cheng Si, Muhaiminul Alam S. M., Yue Zhonghua, Wang Yan, Xiao Yuanxiang, Militky Jiri, Prasad Mohanapriya, Zhu Guocheng   +7 more
doaj   +1 more source

Identification of the plant mitochondrial OrfX protein: A mass spectrometry approach

FEBS Letters, EarlyView.
The mitochondrial genome of plants contains an open reading frame, orfx, which encodes a rare protein that has so far escaped mass spectrometric detection. The protein resembles the c‐subunit of bacterial twin‐arginine‐motif‐dependent protein translocases (TatC).
Matthias Döring, Jan de Jonge, Hans‐Peter Braun, Nils Rugen   +3 more
wiley   +1 more source

ABOUT MODELING OF PRESSURE-FREE PRESSURE FILTRATION OF WATER IN URBAN CONSTRUCTION

Вестник СибАДИ, 2017
The methodology of modeling pressure-free pressure filtration of water in urban construction is considered. A feature of this process is the presence of a creeping boundary of the free surface of water in a fractured porous medium if real nonstationary ...
V. I. Sologaev
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch, Isabel Vogel, Sina Nokodian, Johanna Moeller, Antonia Blechschmidt, Vicky Hecht, Vanessa Kuentzel, Katharina Thiedig, Melissa Schwab, Oliver Schilling, Holger Bronger, Marion Kiechle, Viktor Magdolen, Tobias Dreyer   +13 more
wiley   +1 more source