Results 31 to 40 of about 368,089 (290)

UNIQUE FIXED POINT THEOREMS FOR CONTRACTIVE MAPS TYPE IN T 0 -QUASI-METRIC SPACES [PDF]

, 2014
In [2], Agyingi proved that every generalized contractive mapping defined in a q-spherically complete T 0 -ultra-quasi-metric space has a unique fixed point.
Yae ́ Ulrich Gaba
core   +1 more source

Convexity in quasi-metric spaces [PDF]

, 2012
Includes abstract.Includes bibliographical references.The principal aim of this thesis is to investigate the existence of an injective hull in the categories of T-quasi-metric spaces and of T-ultra-quasi-metric spaces with nonexpansive ...
Otafudu, Olivier Olela
core   +1 more source

Hyperconvexity and endpoints in T₀-quasi-metric spaces [PDF]

, 2013
Over the last decades much progress has been made in the investigation of hyperconvexity in metric spaces. Recently Kemajou and others have published an article concerning hyperconvexity in T₀-quasi-metric spaces.
Haihambo, Paulus
core   +1 more source

Green synchronous spectrofluorimetric method for the simultaneous determination of agomelatine and venlafaxine in human plasma at part per billion levels

Scientific Reports, 2022
A novel sustainable, simple, sensitive, and green spectrofluorimetric method was developed for the concurrent estimation of venlafaxine and agomelatine in pharmaceuticals and biological fluids.
Galal Magdy, Fathalla Belal, Asmaa Kamal El-Deen   +2 more
doaj   +1 more source

GREENNESS AND WHITENESS PROFILES OF UV/VIS PHOTOCHEMICAL VAPOR GENERATION CAPACITIVELY COUPLED PLASMA MICROTORCH OPTICAL EMISSION SPECTROMETRY METHOD FOR MERCURY DETERMINATION AND SPECIATION IN FOOD AND WATER

Studia Universitatis Babes-Bolyai Chemia, 2022
The aim of the study was the evaluation of greenness and whiteness profiles of UV/Vis photo-induced cold vapor generation (UV/Vis-PVG) capacitively coupled plasma microtorch optical emission spectrometry methods for Hg determination and speciation as ...
Eniko COVACI, Tiberiu FRENTIU
doaj   +1 more source

Association Pathways Between Neighborhood Greenspaces and the Physical and Mental Health of Older Adults—A Cross-Sectional Study in Guangzhou, China

Frontiers in Public Health, 2020
According to the United Nations, the proportion of the older population is increasing at a faster rate than all other age groups. Hence, the well-being of older adults is a mounting concern worldwide in the current century. Using a single greenery metric,
Yuquan Zhou, Yuquan Zhou, Yuan Yuan, Yujie Chen, Shulin Lai   +4 more
doaj   +1 more source

Comprehensive metric-based assessment of fabric phase sorptive extraction’s greenness and operational performance in water sample preparation and analysis

Green Analytical Chemistry
Fabric phase sorptive extraction (FPSE) is a sample preparation technique that has gained significant attention due to its operational simplicity, low solvent consumption, and improved sorbent loading relative to traditional extraction techniques.
Augosto Misolas, Mohamad Sleiman, Vasilios Sakkas   +2 more
doaj   +1 more source

Greenness

, 2014
Greenness (measured as mean (Green-Red)/(Green+Red))) of the lizard dorsal area per habitat (I island and M mainland), sex (M male and F female) and location (population)
Anna Runemark (2929635), Erik I. Svensson (74395), Mikkel Brydegaard (785875)   +2 more
core   +1 more source

Comprehensive assessment of greenness of ICP-OES methods for determination of metals

Green Analytical Chemistry
This paper evaluates the greenness of Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) methods for determination metal and metalloid.
Aesha Bhalodia, Sonal Desai
doaj   +1 more source

Application of acidic deep eutectic solvents in green extraction of 5-hydroxymethylfurfural

Scientific Reports, 2022
The extraction of the 5-hydroxymethylfurfural (5-HMF), as building block for many applications, from aqueous solutions has been became an indispensable challenge.
Sabah Karimi, Hemayat Shekaari
doaj   +1 more source