Results 31 to 40 of about 4,847,627 (305)

Perception of neighborhood crime and drugs Increases cardiometabolic risk in Chilean adolescents [PDF]

, 2014
PURPOSE: Studies report an association between neighborhood risk and both obesity and cardiometabolic risk factors (CMR) among adolescents. Here we describe the effect of perceived neighborhood risk on adiposity and CMR among Chilean adolescents ...
Blanco, Estela, Burrows, Raquel, Delva, Jorge, Gahagan, Sheila, Lozoff, Betsy, Martinez, Suzanna M., Reyes, Marcela   +6 more
core   +2 more sources

Optimal Design of Elliptical Beam Cassegrain Antenna

IEEE Access, 2021
An optimal design method of elliptical beam Cassegrain antenna based on differential evolution with global and local neighborhoods algorithm is proposed to achieve high efficiency, low sidelobe, and low profile at Ku/Ka dual band.
Xinglong Liu, Biao Du, Jianzhai Zhou, Lei Xie   +3 more
doaj   +1 more source

Low-Profile Planar Inverted-F Antenna for Ultrawideband Applications [PDF]

, 2016
In this paper, a low-profile planar inverted-F antenna (PIFA) for ultrawideband (UWB) applications is proposed. The antenna con-sists of a PIFA and a ground plane with a slot.
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core   +1 more source

A Novel Planar Dual Circularly Polarized Endfire Antenna

IEEE Access, 2019
In this paper, a novel planar dual circularly polarized (CP) endfire antenna composed of a magnetic dipole Yagi element (MDYE) and electric dipole Yagi element (EDYE) is presented for 5.8-GHz WLAN application.
Ankang Wang, Lin Yang, Yu Zhang, Xi Li, Xiangjie Yi, Gengming Wei   +5 more
doaj   +1 more source

A Broadband Planar Spiral Antenna Design for Electromagnetic Signal Monitoring

IEEE Access, 2020
In order to meet the wide-band full-space radio monitoring task, the design of a circular-polarized planar dual-arm composite spiral antenna is presented in this paper.
Daifu Chen, Hongxin Zhang, Jun Xu
doaj   +1 more source

Portable low profile antenna at X-band [PDF]

, 2011
An antenna which has been conceived as a portable system for satellite communications based on the recommendations ITU-R S.580-6 and ITU-R S.465-5 for small antennas, i.e., with a diameter lower than 50 wavelengths, is introduced.
Fernández González, José Manuel, García Aguilar, Andrés, Inclán Alonso, José Manuel, Sanmartin Jara, J., Sierra Pérez, Manuel, Sierra Pérez, Manuel, Vigil Herrero, Lucía   +6 more
core   +1 more source

Carcinomas and Carcinoid Tumors of the Lungs and Bronchi in Children and Adolescents: The EXPeRT Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele, Calogero Virgone, Michaela Kuhlen, Sabine Irtan, Yves Reguerre, Malgorzata Krawczyk, Ewa Bien, Tal Ben‐Ami, Maja Cesen, Ricardo Lopez‐Almaraz, Andrea Ferrari, Gianni Bisogno, Dominik T. Schneider, Abbas Agaimy, Constantin Lapa, Hubert Ducou le Pointe, Rainer Claus, Catherine Daniel, Ines B. Brecht, Daniel Orbach   +19 more
wiley   +1 more source

A Wideband Single-Fed, Circularly-Polarized Patch Antenna With Enhanced Axial Ratio Bandwidth for UHF RFID Reader Applications

IEEE Access, 2018
A wideband single-fed, circularly-polarized patch antenna with enhanced axial ratio bandwidth for RFID reader application is proposed. The antenna consists of a modified half E-shaped patch, a near-field resonant parasitic (NFRP) patch, and four rotated ...
Junlong Li, Hui Liu, Shuai Zhang, Miaohui Luo, Yuan Zhang, Sailing He   +5 more
doaj   +1 more source

Design standards for low-profile flanges [PDF]

, 1974
Analysis of low-profile flange is based on thin shell theory and simple ring theory. Program produces comprehensive design procedure with subsequent stress and deformation analysis.
Prasthofer, W. P.
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source