Detecting Factors Effective in Knowledge Sharing Model Among Educational Staff

One of the effective organs in implementing economic, social and cultural development policies in each country is the Ministry of Education, which trains specialized and experienced manpower as the basis for the comprehensive development of countries, production of knowledge and research knowledge, and the provision of specialized services by universities and higher education centers. Accordingly, it facilitates sharing knowledge and identifying factors affecting it in the education organization, especially among employees who are the most important elements in any organization. Because it can create an atmosphere full of trust and interaction, the employees can share their knowledge and experiences with each other; hence, it can be an important strength for the education organization as well as society. In this regard, the present study aimed to identify the factors affecting the knowledge sharing model in individual, organizational, environmental, and extra-environmental dimensions among educational staff. The study revealed that the main individual dimension includes enjoyment of knowledge sharing, organizational commitment, specific organizational knowledge, trust, motivation, value of knowledge, and individual and group interactions. Organizational dimension also encompasses organizational culture, documentation development, in-house planning and organizational rewards. The environmental dimension includes technical knowledge, information technology context, knowledge memory upgrading, and economic and social factors. The trans-environmental dimension consists of political and legal factors and international interactions. This descriptive-analytical research used a library technique

Polycaprolactone-templated reduced-graphene oxide liquid crystal nanofibers towards biomedical applications

Here, we report a facile method to generate electrically conductive nanofibers by coating and subsequently chemically reducing graphene oxide (GO) liquid crystals on a polycaprolactone (PCL) mat.</p

Post-Traumatic Pulmonary Pseudocyst following Blunt Chest Trauma; a Case Report

Traumatic pulmonary pseudocyst is a rare complication of chest trauma that has been poorly documented and usually resolves without specific treatment. Here, we present a case of pulmonary pseudocyst in a child with chest trauma without obvious symptoms. It is important to consider this diagnosis in patients with chest trauma to avoid unnecessary invasive procedures

Determination of Sulfonation Conditions of HAB as a By-product of Linear Alkylbenzene Production

Heavy alkylated benzene (HAB), which is a by-product in linear alkylbenzene (LAB) production by UOP process, is separated by distillation from LAB and consists of a range of components such as polyalkylbenzenes, diphenylalkanes, alkyl tetralins, and alkylindans. The products of sulfonation of HAB or its distillation cuts are of wide industrial applications such as emulsifiers, dispersants in lubricating oils, anionic surfactants, and aqueous phase stable waterflooding. The sulfonation of the HAB mixture using oleum as the sulfonating agent has been carried out and optimum reaction conditions have been defined based on the highest degree of sulfonation. Some light, average, and heavy distillation cuts were then sulfonated under optimum conditions. The degree of sulfonation of the fractions was found to be dependent on the composition of the mixture. 1HNMR spectroscopy was used to investigate the relationship between the ratio of aliphatic to aromatic protons of the compounds and the trend in sulfonation. </span

DETC2005-84822 NONLINEAR DYNAMIC ANALYSIS AND CHAOTIC BEHAVIOR IN ATOMIC FORCE MICROSCOPY

ABSTRACT The atomic force microscope (AFM) system has evolved into a useful tool for direct measurements of intermolecular forces with atomic-resolution characterization that can be employed in a broad spectrum of applications. In this paper, the nonlinear dynamical behavior of the AFM is studied. This is achieved by modeling the microcantilever as a single mode approximation (lumped-parameters model) and considering the interaction between the sample and cantilever in the form of van der Waals potential. The resultant nonlinear system is then analyzed using Melnikov method, which predicts the regions in which only periodic and quasi-periodic motions exist, and also predicts the regions that chaotic motion is possible. Numerical simulations are used to verify the presence of such chaotic invariant sets determined by Melnikov theory. Finally, the amplitude of vibration in which chaos is appeared is investigated and such irregular motion is proven by several methods including Poincare maps, Fourier transform, autocorrelation function and Lyapunov exponents

Tumor necrosis factor‑α in systemic lupus erythematosus: Structure, function and therapeutic implications (Review)

: Tumor necrosis factor‑α (TNF‑α) is a pleiotropic pro‑inflammatory cytokine that contributes to the pathophysiology of several autoimmune diseases, such as multiple sclerosis, inflammatory bowel disease, rheumatoid arthritis, psoriatic arthritis and systemic lupus erythematosus (SLE). The specific role of TNF‑α in autoimmunity is not yet fully understood however, partially, in a complex disease such as SLE. Through the engagement of the TNF receptor&nbsp;1 (TNFR1) and TNF receptor&nbsp;2 (TNFR2), both the two variants, soluble and transmembrane TNF‑α, can exert multiple biological effects according to different settings. They can either function as immune regulators, impacting B‑, T‑ and dendritic cell activity, modulating the autoimmune response, or as pro‑inflammatory mediators, regulating the induction and maintenance of inflammatory processes in SLE. The present study reviews the dual role of TNF‑α, focusing on the different effects that TNF‑α may have on the pathogenesis of SLE. In addition, the efficacy and safety of anti‑TNF‑α therapies in preclinical and clinical trials SLE are discussed

Development of a triboelectric nanogenerator for joining of silver nanorods

On account of their excellent properties, 2D nanostructures beyond graphene, such as MoS2, have extensive applications. Given their quantum confinement effects, MoS2 monolayers could efficiently trap electrons as an intermediate layer between friction and electrode in triboelectric nanogenerators (TENGs) and successfully hinder their recombination and air breakdown, increasing their output. With the help of this phenomenon, a TENG called PS+PS/MoS2-AHSG (PPMA) TENG is fabricated with an open-circuit voltage of ≈1200V and a short-circuit current of 0.74mA, and a maximum power of 11.27mW. PPMA TENG consists of transparent polystyrene (PS) and PS/MoS2 as negative contact and storage layers. Also, the positive layer is a novel Alyssum homolocarpum seed gum (AHSG) layer, which is a natural polymer. This TENG could successfully light up 115 commercial light-emitting diodes. PPMA TENG exhibits exceptional mechanical robustness so that after a decrease in its outputs, heating would activate the self-healing mechanism, and the surface charge density could reach from 0.428 to 0.874 µC m−2, which is 82% of the initial value. To demonstrate the practical applications of PPMA TENG as a high-voltage sustainable power source, it is successfully employed to perform a dielectrophoretic assisted welding of silver nanorods

Stem Cell Therapy and Its Products Such as Exosomes: Modern Regenerative Medicine Approach

Regenerative Medicine is a developing and multidisciplinary field of science that uses tissue engineering, biology, and cell or cell-free therapy to regenerate cells, tissues, and organs to restore their impaired or lost function. Regenerative medicine uses a new element linked to stem cells, which call exosomes, introduces it to the healthcare market. Exosomes are present in almost all body fluids, such as synovial fluid and blood. Exosomes and microvesicles are very efficient mediators of cell-to-cell communication by transferring their specific cargo to recipient cells. Furthermore, the modification of extracellular vesicles is possible that can become an excellent choice for drug delivery systems and vaccines. Isolation of exosomes for their use as therapeutic, research, or diagnostic agents for a specific type of disease is of particular importance. Five techniques have been used to isolate exosomes from different sources, including ultracentrifugation-based, size-based, immunoassay, exosome sedimentation, and microfluidic techniques. The use of exosomes in medicine has many applications, including in Bone and cartilage, dental, immune system, liver, kidney, skeletal muscle, nervous, heart systems, skin and wound, microbial and infectious, and also in cancers. This chapter focuses on stem cells, especially exosomes, as novel approaches in disease treatment and regenerative medicine

Glot500: Scaling Multilingual Corpora and Language Models to 500 Languages

The NLP community has mainly focused on scaling Large Language Models (LLMs) vertically, i.e., making them better for about 100 languages. We instead scale LLMs horizontally: we create, through continued pretraining, Glot500-m, an LLM that covers 511 predominantly low-resource languages. An important part of this effort is to collect and clean Glot500-c, a corpus that covers these 511 languages and allows us to train Glot500-m. We evaluate Glot500-m on five diverse tasks across these languages. We observe large improvements for both high-resource and low-resource languages compared to an XLM-R baseline. Our analysis shows that no single factor explains the quality of multilingual LLM representations. Rather, a combination of factors determines quality including corpus size, script, “help” from related languages and the total capacity of the model. Our work addresses an important goal of NLP research: we should notlimit NLP to a small fraction of the world’s languages and instead strive to support as many languages as possible to bring the benefits of NLP technology to all languages and cultures. Code, data and models are available at https://github.com/cisnlp/Glot500