Results 71 to 80 of about 178,598 (302)

The ecology of exercise: mechanisms underlying Individual variation in behavior, activity, and performance: an introduction to symposium [PDF]

open access: yes, 2017
Wild animals often engage in intense physical activity while performing tasks vital for their survival and reproduction associated with foraging, avoiding predators, fighting, providing parental care, and migrating.
Auer   +116 more
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

open access: yesAdvanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm   +5 more
wiley   +1 more source

The sequel to COVID-19: the antithesis to life

open access: yesJournal of Ideas in Health, 2020
The pandemic of COVID-19 has afflicted every individual and has initiated a cascade of directly or indirectly involved events in precipitating mental health issues.
Sudhir Bhandari   +7 more
doaj   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

open access: yesAdvanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du   +4 more
wiley   +1 more source

Master athletes are extending the limits of human endurance

open access: yesFrontiers in Physiology, 2016
The increased participation of master athletes (i.e. > 40 years old) in endurance and ultra-endurance events (> 6h duration) over the past few decades has been accompanied by an improvement in their performances at a much faster rate than their younger ...
Romuald Lepers, Paul James STAPLEY
doaj   +1 more source

Łódź as an Arena of Grand Sports Events: Selected Examples [PDF]

open access: yes, 2016
The paper presents Łódź as a city where major sports events are held. Several sports facilities are featured which make it possible to organize various kinds of events, including international ones.
Włodarczyk, Bogdan
core   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

فاعلیة الألعاب الصغیرة المائیة واثرھا على تعلم السباحة الحرة على عینة من طالبات المرحلة الرابعة

open access: yesالرياضة المعاصرة, 2014
The importance of research in reliance on scientific concepts to motor learningand see the impact of some of the water sports to achieve educational goals. These methods relying on the principle of the investment of time and effort as a result of follow
مواهب حميد نعمان
doaj  

The Linkages between Real Estate Tourism and Urban Sprawl in Majorca (Balearic Islands, Spain)

open access: yesLand, 2013
Financial capitalism has driven profound changes in urban land use patterns in Majorca, at the Balearic Islands (Spain). This archipelago is a major tourist destination located in the Mediterranean basin, with 4,492 km2 of surface area, 1,113,114 ...
Angela Hof, Macià Blázquez-Salom
doaj   +1 more source

Home - About - Disclaimer - Privacy