1,103 research outputs found
The intention to share: professionals’ knowledge sharing behaviors in online communities
No full textSince the 1990s, the rise of some online communities as well as the decline of others has caught the attention of academia as well as of practice. One assumption for the decline of some online communities is the lack of the rich knowledge content that is believed to be the source of competitiveness and sustainability of any online community. Online communities are increasingly acknowledging the value of knowledge and the knowledge sharing processes required for online communities to build and sustain their identity in this competitive and constantly changing online environment. This research aims to provide an understanding of knowledge sharing behavior through the adaptation of two major theories imported from Social Psychology: the Theory of Reasoned Action (TRA) and the Theory of Planned Behavior (TpB). Exploring knowledge sharing from a social psychological perspective provides an understanding of the process an individual goes through to make the decision to share his/her knowledge with others as well as the different psychological factors facilitating or hindering knowledge sharing behavior. Research findings are based on a web-survey of 158 group members, and an observation of interactions of eight active groups in one online community of professional educators. Proposing an extended theoretical model of knowledge sharing behavior in an online community, this research found that normative pressures, including subjective norms and descriptive norms, had a strong influence on the formation of the individual’s intention to share in the online community. Knowledge sharing self-efficacy also was found to significantly account for explaining the individual’s motivation to share his/her knowledge with other members. Attitude and controllability were not found to have significant impacts on the formation of intention. The qualitative analysis of the interactions of members of eight active groups revealed that there were other implicit factors that motivated individuals to engage in online activities. The observation of 24 online sessions had generated beliefs related to knowledge sharing behavior. Those beliefs were related to normative beliefs and the pressure created by the expectations of others, control beliefs and the confidence of the individual’s ability to behave, and finally, behavioral beliefs and individual outcome expectations.Ph.D.Includes bibliographical referencesIncludes vitaby Bibi M. Alajm
Benefits and Hazards of Electromagnetic waves; Telecommunication, Physical and Biomedical: a Review
No full textBenefits and hazards of electromagnetic waves, telecommunication, physical and biomedical: A review
No full textOBJECTIVE: The aim of this paper is to review the current literature on electromagnetic radiation (EMR): physical, biophysical, and telecommunication. The widespread application of EMR in modern technologies requires telecommunication and healthcare professionals to possess some knowledge of its physical and biological properties. In this review article, we will discuss biophysical principles of EMR, its interactions with living organisms and its application in clinical practices. We will discuss here beneficial as well as hazardous effects of EMR. We will also discuss the safety guidelines
Perivascular Adipose Tissue and Vascular Smooth Muscle Tone: Friends or Foes?
No full textPerivascular adipose tissue (PVAT) is a specialized type of adipose tissue that surrounds most mammalian blood vessels. PVAT is a metabolically active, endocrine organ capable of regulating blood vessel tone, endothelium function, vascular smooth muscle cell growth and proliferation, and contributing critically to cardiovascular disease onset and progression. In the context of vascular tone regulation, under physiological conditions, PVAT exerts a potent anticontractile effect by releasing a plethora of vasoactive substances, including NO, H2S, H2O2, prostacyclin, palmitic acid methyl ester, angiotensin 1-7, adiponectin, leptin, and omentin. However, under certain pathophysiological conditions, PVAT exerts pro-contractile effects by decreasing the production of anticontractile and increasing that of pro-contractile factors, including superoxide anion, angiotensin II, catecholamines, prostaglandins, chemerin, resistin, and visfatin. The present review discusses the regulatory effect of PVAT on vascular tone and the factors involved. In this scenario, dissecting the precise role of PVAT is a prerequisite to the development of PVAT-targeted therapies
Extended Jensen's Functional for Diamond Integral via Hermite Polynomial
No full textIn this paper, with the help of Hermite interpolating polynomial, extension of Jensen's functional for n-convex function is deduced from Jensen's inequality involving diamond integrals. Special Hermite conditions, including Taylor two-point formula and Lagrange's interpolation, are also deployed to find further extensions of Jensen's functional. The paper also includes discussion on bounds for Grüss-type inequality, Ostrowski-type inequality, and Čebyšev functional associated with newly defined Jensen's functional. © 2021 Rabia Bibi et al
اردو لغت (تاریخی اصول پر)‘‘ کے اندراجات کی معنوی وضاحت کا تجزیہ’’
No full textAnalysis of explanations of meanings in Urdu Lughat: Tareekhi Usool Par
By Ameena Bibi, Assistant Prof, Department of Urdu, International Islamic University, Islamabad
Urdu Dictionary Board (UDB) has compiled and published Urdu’s most comprehensive dictionary, titled Urdu Lughat: Tareekhi Usool Par (Urdu Dictionary: on historical principles). While appreciating the monumental work, the author of this paper has pointed out certain lacuna in the way many of the entries in Urdu Lughat published by UDB are explained. The author has also compared the explanatory wordings in UDB’s dictionary with some other dictionaries of Urdu and has explained what and which is correct and what errors have been committed by UDB editors. Although she is all-praise for the work, she has objectively evaluated some portions of UDB’s dictionary in the light of lexicographic rules
4-Nitrophenyl 2-methylbenzoate
No full textThe title compound, C14H11NO4, crystallizes with two molecules in the asymmetric unit. The major conformational difference between these two molecules is the dihedral angle between the aromatic rings, namely 36.99 (5) and 55.04 (5)°. The nitro groups are coplanar with the phenyl rings to which they are attached, the O—N—C—C torsion angles being -1.9 (3) and 1.0 (3)° in the two molecules
When is Economic Growth Pro-Poor? Evidence from Tunisia
No full textMany empirical studies have shown that economic growth generally leads to a drop in poverty. These studies have also pointed out that a given growth rate is compatible with a large range of outcomes in terms of poverty reduction. This means that growth is more pro-poor in certain cases than in others. Using complete and partial poverty orderings, this paper suggests a measure which captures the extent to which economic growth is pro-poor. This measure decomposes poverty changes into two components: the relative variation in the average income of the poor and the relative variation in the overall inequality within the poor. Evidence from Tunisia shows that economic growth was to a large extent pro-poor during the last two decades.Poverty measurement, robustness analysis, economic growth, Tunisia
Bibi Gavroche : chansonnette comique créée par Francis Dufor [illustration Louis Damaré]
No full textBibi Gavroche : chansonnette comique créée par Francis Dufor à l’Eldorado ; illustration Louis Damaré (série Damaré Dufor mégot) ; (en-tête) “Répertoire Francis Dufor” ; paroles de F. Dufor & Boud’nor ; musique de Georges Krier ; Répertoire Dufor [éditeur], en dépôt Société anonyme, 1 rue d’Enghien, Paris ; imprimerie Crevel ; [intérieur : sans cotage ; imprimerie Crevel] ; verso “Répertoire des œuvres et créations réalistes en dépôt Société anonyme (id. pour les titres et différent pour dépôt medihal-01558003) ; incipit “Vous devinez à ma tournure / Que je n’ suis pas un aristo” ; datation par BNF 1905
Bibi Gavroche : chansonnette comique créée par Francis Dufor [illustration Louis Damaré]
No full textBibi Gavroche : chansonnette comique créée par Francis Dufor à l’Eldorado ; illustration Louis Damaré (série Damaré Dufor mégot) ; (en-tête) “Répertoire Francis Dufor” ; paroles de F. Dufor & Boud’nor ; musique de Georges Krier ; Répertoire Dufor [éditeur], en dépôt Société anonyme, 1 rue d’Enghien, Paris ; imprimerie Crevel ; [intérieur : sans cotage ; imprimerie Crevel] ; verso “Répertoire des œuvres et créations réalistes en dépôt Société anonyme (id. pour les titres et différent pour dépôt medihal-01558003) ; incipit “Vous devinez à ma tournure / Que je n’ suis pas un aristo” ; datation par BNF 1905
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