Results 61 to 70 of about 548,983 (334)

Waist of the sphere for maps to manifolds

, 2011
We generalize the sphere waist theorem of Gromov and the Borsuk--Ulam type measure partition lemma of Gromov--Memarian for maps to ...
Bredon, Conner, Dold, Gromov, Haefliger, Hung, Karasev, Karasev, Mann, May, Memarian, Nakaoka, Nakaoka, Sklyarenko, Steenrod, Vasilʼev, Venkov, Volovikov, Yang   +18 more
core   +1 more source

Direct Photocurrent Detection of Optical Vortex Based on the Orbital Photo Galvanic Effect: Progress, Challenge, and Perspective

Advanced Science, EarlyView.
Direct orbital angular momentum (OAM) detection through the orbital photogalvanic effect offers a scalable route for integrated optoelectronics. This perspective evaluates symmetry‐driven material selection and demonstrates how electrode matrices enable the resolution of complex, mixed OAM modes.
Jinluo Cheng, Dehong Yang, Weiming Wang, Chang Xu, Zipu Fan, Dong Sun   +5 more
wiley   +1 more source

Waist of balls in hyperbolic and spherical spaces

, 2018
In this paper we find a tight estimate for Gromov's waist of the balls in spaces of constant curvature, deduce the estimates for the balls in Riemannian manifolds with upper bounds on the curvature ($\mathrm{CAT}(\kappa)$-spaces), and establish similar ...
Akopyan, Arseniy, Karasev, Roman
core   +1 more source

Extralevator Abdominoperineal Excision Improves Overall Survival Compared to Standard Abdominoperineal Excision: A Systematic Review and Meta‐Analysis

Annals of Gastroenterological Surgery, EarlyView.
This systematic review and meta‐analysis of 38 studies, encompassing over 5000 patients, compared extralevator abdominoperineal excision (ELAPE) with standard abdominoperineal excision (APE) in patients with advanced low rectal cancer. ELAPE was associated with significantly improved overall and disease‐free survival, reduced intraoperative perforation
Sarolta Beáta Kávási, Diana‐Elena Floria, Anett Rancz, Dániel Sándor Veres, Nándor Faluhelyi, Pál Miheller, Péter Hegyi, Szabolcs Ábrahám   +7 more
wiley   +1 more source

Relationship between waist–to-height ratio and blood pressure among adolescents

Payesh, 2016
Objective (s): Recent increases in pediatric abdominal obesity suggest that children and adolescents should be assessed anthropometrically as a step toward managing their long-term cardiovascular risk status.
Fatemeh Abbaszadeh, Saeideh Nasiri, Mahboobeh Kafaei Atrian, Nahid Sarafraz, Azam Bagheri   +4 more
doaj  

Waist circumference and waist-to-height ratio of Hong Kong Chinese children

BMC Public Health, 2008
Background Central body fat is a better predictor than overall body fat for cardiovascular (CV) risk factors in both adults and children. Waist circumference (WC) has been used as a proxy measure of central body fat.
Kwok Charlotte WL, Yin Jane AT, Li Albert M, Nelson Edmund AS, Choi Kai-Chow, So Hung-Kwan, Sung Rita YT, Ng Pak-Cheung, Fok Tai-Fai   +8 more
doaj   +1 more source

Markers of adiposity in HIV/AIDS patients: Agreement between waist circumference, waist-to-hip ratio, waist-to-height ratio and body mass index. [PDF]

PLoS ONE, 2018
Waist circumference (WC), waist-to-hip ratio (WHR) and waist-to-height ratio (WHtR) are all independent predictors of cardio-metabolic risk and therefore important in HIV/AIDS patients on antiretroviral therapy at risk of increased visceral adiposity ...
Christian Akem Dimala, Roland Cheofor Ngu, Benjamin Momo Kadia, Frank-Leonel Tianyi, Simeon Pierre Choukem   +4 more
doaj   +1 more source

Why is low waist-to-chest ratio attractive in males? The mediating roles of perceived dominance, fitness, and protection ability [PDF]

, 2014
Past research suggests that a lower waist-to-chest ratio (WCR) in men (i.e., narrower waist and broader chest) is viewed as attractive by women. However, little work has directly examined why low WCRs are preferred.
Anthony E. Coy, Braun, Brown, Bryan, Buhrmester, Buss, Buss, Darling-Wolf, Dixson, Eagly, Eagly, Field, Finkel, Fletcher, Frederick, Gangestad, Grammer, Hargreaves, Heron-Delaney, Horvath, Jeffrey D. Green, Langlois, Leit, Li, Li, Little, Locker, Lucas, Lukaszewski, Luther, Maisey, Michael E. Price, Mishkind, Muthén, Pawlowski, Petrie, Pope, Price, Price, Provost, Puts, Ridgeway, Roney, Schwarz, Shelton, Spitzer, Steinfeldt, Sugiyama, Swami, Swami, Swami, Swami, Tiggemann, Tiggemann, Tomaskovic-Devey, Wood   +55 more
core   +2 more sources

Context Awareness and Human–Robot Interaction Optimization for Museum Intelligent Guide Robot

Advanced Intelligent Systems, EarlyView.
This study presents a context‐aware human–robot interaction framework designed for intelligent museum guide robots. The system features a three‐layer architecture—perception, understanding, and behavior execution—that enables adaptive and meaningful interactions with museum visitors.
Anna Zou, Yue Meng, Shijing Tong
wiley   +1 more source

Waist circumference, waist-hip ratio and waist-height ratio percentiles and central obesity among Pakistani children aged five to twelve years

BMC Pediatrics, 2011
Background Central obesity has been associated with the risk of cardiovascular and metabolic disease in children and anthropometric indices predictive of central obesity include waist circumference (WC), waist-hip ratio (WHR) and waist-height ratio (WHtR)
Mushtaq Muhammad Umair, Gull Sibgha, Abdullah Hussain Muhammad, Shahid Ubeera, Shad Mushtaq Ahmad, Akram Javed   +5 more
doaj   +1 more source