Results 11 to 20 of about 13,318,066 (293)

A Primary Care Nurse-Delivered Walking Intervention in Older Adults: PACE (Pedometer Accelerometer Consultation Evaluation)-Lift Cluster Randomised Controlled Trial. [PDF]

open access: yes, 2015
Background: Brisk walking in older people can increase step-counts and moderate to vigorous intensity physical activity (MVPA) in ≥10-minute bouts, as advised in World Health Organization guidelines.
Adams, F   +14 more
core   +7 more sources

How Polymers Behave as Viscosity Index Improvers in Lubricating Oils

open access: yes, 2015
One of the requirements of engine lubricating oil is that it must have a low enough viscosity at low temperatures to assist in cold starting and a high enough viscosity at high temperatures to maintain its load-bearing characteristics.
M. Covitch, Kieran Trickett
semanticscholar   +1 more source

An Improved VI-CFAR Detector Based on GOS [PDF]

open access: yesMATEC Web of Conferences, 2016
In combination with the advantages of CA-CFAR, GO-CFAR and SO-CFAR algorithm, the VI-CFAR has strong adaptability both in homogeneous and non-homogeneous environment. However, if the interfering targets are present in both the halves of the reference sliding windows, the use of the window with the smallest mean is affected by them and therefore results
Zhao Likai, Li Sen, Hu Guangzhao
openaire   +2 more sources

Advances in Sorptive Removal of Hexavalent Chromium (Cr(VI)) in Aqueous Solutions Using Polymeric Materials

open access: yesPolymers, 2023
Sorptive removal of hexavalent chromium (Cr(VI)) bears the advantages of simple operation and easy construction. Customized polymeric materials are the attracting adsorbents due to their selectivity, chemical and mechanical stabilities.
Xiaoqing Yuan   +4 more
semanticscholar   +1 more source

Identification et étude du comportement de quelques additifs des huiles moteurs à base minérale par spectrophotométries IR intégrale et différentielle Identification and Study of the Behavior of Several Additives for Mineral-Bass Motor Oils by Differential and Integral Ir Spectrophotometry

open access: yesOil & Gas Science and Technology, 2006
L'utilisation d'additifs dans les huiles moteurs est un facteur déterminant pour la longévité et les performances des moteurs. On présente dans cet article quelques procédés d'identification de certains additifs (améliorant d'indice de viscosité ...
Subran C.
doaj   +1 more source

Changes in Clinical Pain in Fibromyalgia Patients Correlate with Changes in Brain Activation in the Cingulate Cortex in a Response Inhibition Task [PDF]

open access: yes, 2014
Objective The primary symptom of fibromyalgia is chronic, widespread pain; however, patients report additional symptoms including decreased concentration and memory.
Barjola, Paloma   +9 more
core   +1 more source

Preparation of Modified Biochar and Its Adsorption of Cr(VI) in Aqueous Solution

open access: yesCoatings, 2023
In recent years, wastewater containing heavy metal chromium has been discharged into water bodies. Metal chromium not only destroys the water environment but also poses a threat to human life and health.
Jinlong Zuo   +6 more
semanticscholar   +1 more source

Potentiel et limites d'utilisation, aux températures élevées, des lubrifiants liquides dans les moteurs Potential and Limitations of Use of Liquid Lubricants in Engines At High Temperatures

open access: yesOil & Gas Science and Technology, 2006
Cet article examine les possibilités de réponse de la formulation des lubrifiants à une élévation des températures dans les moteurs automobiles de la prochaine décennie; l'accroissement des puissances spécifiques des moteurs, et la réduction de leurs ...
Toulhoat H.
doaj   +1 more source

Vi serology in screening of typhoid carriers: improved specificity by detection of Vi antibodies by counterimmunoelectrophoresis [PDF]

open access: yesJournal of Hygiene, 1982
SUMMARYA purified soluble Vi antigen was used in counterimmunoelectrophoresis (CIE), passive haemagglutination (HA) and solid phase radio-immunoassay (SPRIA) for detection of serum Vi antibody. Serum Vi antibody was detected in 13 of 14 chronic typhoid carriers by both CIE and HA.
P Y, Chau, R S, Tsang
openaire   +2 more sources

Building Optimisation Vis-À-Vis Solar Shading for Improved Comfort and Energy Efficiency in Classrooms

open access: yesDIMENSI (Journal of Architecture and Built Environment), 2023
Excessive solar radiation negatively affects classroom occupants' perfor­mance and thermal comfort, especially in buildings with West and East-facing glazed openings. This study utilises fixed external shading devices and triple-glazed low-emissivity windows to optimise a classroom building in Nigeria.
Mark Alegbe   +3 more
openaire   +2 more sources

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