Miracle-dz/UniFAR-FTUs huggingface dataset:
The Small World of Material Handling Research

Using data from 88 journals over an 8 year period, we investigate the relationships among researchers in material handling. We apply social network analysis to measure many attributes of the network, including papers published each year, papers published per author, number of collaborators per author, strength of collaboration between authors, and how influential an author is in the network. We observe that collaboration patterns in material handling follow a scale-free structure in the presence of some hub-like researchers. According to social network theory, these hub researchers facilitate rapid dissemination of knowledge in the network. We conclude that the scientific community in material handling indeed forms a “small world,” yet the level of connectedness is lower than in other scientific networks. We hope these findings will inspire new and increasing levels of collaboration in the discipline.
Sufficient Conditions for Graphs to Be k -Connected, Maximally Connected, and Super-Connected

<jats:p>Let <jats:inline-formula> <math xmlns="http://www.w3. org/1998/Math/MathML" id="M2"> <mi>G</mi> </math> </jats:inline-formula> be a connected graph with minimum degree <jats:inline-formula> <math xmlns="http://www.w3. org/1998/Math/MathML" id="M3"> <mi>δ</mi> <mfenced open="(" close=")" separators="|"> <mrow> <mi>G</mi> </mrow> </mfenced> </math> </jats:inline-formula> and vertex-connectivity <jats:inline-formula> <math xmlns="http://www.w3. org/1998/Math/MathML" id="M4"> <mi>κ</mi> <mfenced open="(" close=")" separators="|"> <mrow> <mi>G</mi> </mrow> </mfenced> </math> </jats:inline-formula>. The graph <jats:inline-formula> <math xmlns="http://www.w3. org/1998/Math/MathML" id="M5"> <mi>G</mi> </math> </jats:inline-formula> is <jats:inline-formula> <math xmlns="http://www.w3. org/1998/Math/MathML" id="M6"> <mi>k</mi> </math> </jats:inline-formula>-connected if <jats:inline-formula> <math xmlns="http://www.w3. org/1998/Math/MathML" id="M7"> <mi>κ</mi> <mfenced open="(" close=")" separators="|"> <mrow> <mi>G</mi> </mrow> </mfenced> <mo>≥</mo> <mi>k</mi> </math> </jats:inline-formula>, maximally connected if <jats:inline-formula> <math xmlns="http://www.w3. org/1998/Math/MathML" id="M8"> <mi>κ</mi> <mfenced open="(" close=")" separators="|"> <mrow> <mi>G</mi> </mrow> </mfenced> <mo>=</mo> <mi>δ</mi> <mfenced open="(" close=")" separators="|"> <mrow> <mi>G</mi> </mrow> </mfenced> </math> </jats:inline-formula>, and super-connected if every minimum vertex-cut isolates a vertex of minimum degree. In this paper, we present sufficient conditions for a graph with given minimum degree to be <jats:inline-formula> <math xmlns="http://www.w3. org/1998/Math/MathML" id="M9"> <mi>k</mi> </math> </jats:inline-formula>-connected, maximally connected, or super-connected in terms of the number of edges, the spectral radius of the graph, and its complement, respectively. Analogous results for triangle-free graphs with given minimum degree to be <jats:inline-formula> <math xmlns="http://www.w3. org/1998/Math/MathML" id="M10"> <mi>k</mi> </math> </jats:inline-formula>-connected, maximally connected, or super-connected are also presented. </jats:p>
Enterprise Grid Computing : A Potential IT Infrastructure for Small Business Enterprises 1

Journal of Management and Social Sciences Vol. 6, No. 1, (Spring 2010) 44-51 The material presented by the author does not necessarily portray the viewpoint of the editors and the management of the Institute of Business & Technology (BIZTEK) or Institute of Development Administration, Bangkok, Thailand. JMSS is published by the Institute of Business and Technology (BIZTEK). Main Ibrahim Hydri Road, Korangi Creek, Karachi-75190, Pakistan. * C Enterprise Grid Computing: A Potential IT Infrastructure for Small Business Enterprises
Measurement of temperature-sensitive electrical parameters of a high-power 4.5 kV IGBT module

Condition monitoring of power converters by way of sensorless temperature measurement is desired in order to optimize maintenance or increase performance. To date, there have been few investigations in this area for high-voltage IGBTs. This paper presents extensive measurements of temperature sensitive electrical parameters for a high-power 4.5 kV, 1.2 kA IGBT module. These parameters were extracted from switching transients in double pulse tests. The dependencies regarding collector current, collector-emitter voltage, and junction temperature were evaluated. Each parameter is rated regarding the suitability for online junction temperature estimation. The results showed that, since most parameters depend strongly on current and voltage in addition to temperature, the most suitable parameters were the quasi-static threshold voltage and maximum current and voltage rate of change during device turn-on.
Prevalence of Enteropathogenic Escherichia coli in Maize (Zea mays) or Millet (Pennicetum glaucum) Flours and Porridges

1 Department of Food Science and Technology, Laboratory of Biotechnology and Food Microbiology, University of Nangui Abrogoua, 02 BP 801 Abidjan 02, Côte d‟Ivoire 2 Laboratory of Molecular pathology and biotechnology / National Center of Agronomic Research, Abidjan, Côte d‟Ivoire, 3 Department of Food Science and Technology, Laboratory of Nutrition and Food security, University of Nangui Abrogoua, 02 BP 801 Abidjan 02, Côte d‟Ivoire *Corresponding author
Compassion Fatigue and Adopted Coping Strategies of Mental Health Service Providers Working in A Regional Psychiatric Hospital in Nigeria

Background: Mental health service providers sometimes suffer burden resulting from their care of mentally ill individuals, and this burden could be modulated by the coping mechanisms they adopt. Objective: This study aimed to investigate the relationships between gender, coping strategy and compassion fatigue of mental health service providers in a mental health facility in Nigeria Method: This was a cross-sectional study which recruited 234 mental health service providers working in a mental health facility in Nigeria, and they completed questionnaires (the Coping Strategy Inventory modified by Addison, Campbell-Jenkins & Sarpong and the Compassion Fatigue subscale of the Professional Quality of Life developed by Stamms. Results: majority of the mental health service providers surveyed were at risk of compassion fatigue (75.2%), gender did not significantly impact on compassion fatigue (t =-0.111; p>0.05), and coping strategies jointly predicted compassion fatigue (F = 11.927; p<0.05; r=0.417). However, when analyzed separately, only the subgroup of emotional focused engagement coping and emotional focused disengagement coping strategies independently predicted compassion fatigue, (β =0.246, t= 3.3.511, p<0.05) and (β =0.226, t= 3.698, p<0.05) respectively. Conclusion; Mental health service providers have high risk of compassion fatigue and the emotional based coping strategies are associated with this. Measures are suggested to mitigate compassion fatigue among this professionals, to reduce the effect on them and their patients. DOI : 10.14302/issn2474-9273.jbtm-16-1195 Corresponding Author: Omoaregba Joyce, Federal Neuropsychiatric Hospital, Benin city, Nigeria, Email: jomoaregba@yahoo.com
ZVS Flyback Converter With Isolated And Non-isolated Outputs

The advancement of semiconductor technology lead to the requirement of multi-output dc-dc converter. The basic principle, analysis and design of a new topology dc-dc converter having isolated and non isolated outputs are presented in this paper. The circuit comprises of two non-isolated outputs having same ground and one isolated output on a second secondary. The switching pattern for the converter devices is generated using TMS320F28335 digital controller. The voltage stress on the primary switches of this converter is low and the regulation switch for auxiliary output is used for achieving zero voltage switching (ZVS) over the entire load range. The validity of the proposed topology is confirmed by the simulation results, carried out using PSIM software, obtained for three outputs with 12V,100mA; 6.6V,0.7A; and 5V,1.2A for set top box application.
Effects of CD 2-associated protein deficiency on amyloid-β in neuroblastoma cells and in an APP transgenic mouse model

Background: CD2-associated protein (CD2AP) is an SH3-containing scaffold adaptor protein which regulates the actin cytoskeleton. Recently, CD2AP was identified as a genetic risk factor for Alzheimer’s disease (AD) by several genome-wide association studies. One of the hallmarks of AD is the accumulation of aggregated forms of Amyloid-β (Aβ) in the brain. In humans, CD2AP AD susceptibility locus (rs9349407) is associated with an increased plaque burden. Aβ production is highly regulated by endocytosis and is influenced by lysosomal function. Lysosomal trafficking is influenced by CD2AP. In this study, we decreased CD2AP levels in N2a neuroblastoma cultures and PS1APP mice and analyzed Aβ levels and plaque burden. Results: Our data show that suppressing CD2AP expression using shRNA in N2a-APP695 cells results in decreased cell membrane amyloid precursor protein, decreased Aβ release and a lower Aβ42/Aβ40 ratio. CD2AP protein is expressed in the brain as detected by western blot, and the expression level is dependent on gene dosage. In 1-month old PS1APP mice, complete loss of CD2AP in brain resulted in a decreased Aβ42/Aβ40 ratio in brain tissue lysates while there was no effect on Aβ deposition or accumulation in PS1APP mice expressing one copy of CD2AP. Conclusion: CD2-Associated Protein affects Aβ levels and Aβ42/Aβ40 ratio in vitro. The effect of CD2-Associated Protein on Aβ metabolism is subtle in vivo.
Parametric Analysis of Solid Oxide Fuel Cell Using Lattice Boltzmann Method

The present paper deals with a numerical simulation of temperature field inside a solid oxide fuel cell (SOFC) components. The temperature distribution is investigated using a coflow planar SOFC comprising the air and fuel channel and twoceramic electrodes, anode and cathode, separated by a dense ceramic electrolyte. The Lattice Boltzmann method (LBM) is used for the numerical simulation of the physical problem. The effects of inlet temperature, anode thermal conductivity and current density on temperature distribution are discussed. It was found that temperature distribution is very sensitive to the inlet temperature and the current density. Keywords—Solid oxide fuel cell, Heat sources, temperature, Lattice Boltzmann method.
A Modeling Study of Direct and Indirect N2O Emissions From a Representative Catchment in the U.S. Corn Belt

Indirect nitrous oxide (N2O) emissions from drainage ditches and headwater streams are poorly constrained. Few studies have monitored stream N2O emissions and fewer modeling studies have been conducted to simulate stream N2O emissions. In this study, we developed direct and indirect N2O emission modules and a corresponding calibration module for use in the Soil and Water Assessment Tool (SWAT) model, and implemented the expanded SWAT model (termed SWAT‐N2O) to a representative fourth‐stream‐order catchment (210 km2) and six first‐order stream catchments (0.22–1.83 km2) in southeastern Minnesota. We simulated the spatial and temporal fluctuations of the indirect emissions from streams, identified emission “hot spots” and “hot moments,” and diagnosed the correlations between direct and indirect emissions. We showed that zero‐order streams and first‐order streams could contribute 0.034–0.066 and 0.011 nmol N2O m−2 s−1 (expressed on the basis of unit catchment area) to the total surface emissions, respectively. Emissions from zero‐order and first‐order streams equal 24–41% of direct emissions from soil, which may explain the emission gap between calculations using top‐down and bottom‐up methods. Clear spatial patterns were identified for both direct and indirect emissions and their spatial variations were negatively correlated. Our results suggest that the IPCC N2O emission factor for streams in the Corn Belt should be increased by 3.2–5.7 times. Increasing precipitation and streamflow in the Corn Belt may potentially increase frequencies of soil anoxic conditions and nitrate leaching to streams, and subsequently increase N2O emissions from both soils and streams.
Stairway Step Dimensions

This paper reports a replication of a prior measurement system study. The earlier study examined the nosing-to-nosing measurement system for measuring steps in a stairway to determine uniformity. In each study, two individuals measured six flights of stairs on two separate occasions. The difference in the first and second study was the different measurers. Step attributes used to define uniformity are riser height and tread depth. The measurers in each study obtained 744 values of riser height and 672 values of tread depth. The ANOVA for each study indicated that less than 4% of the variance in these attributes was due to the measurers; the remainder of variability was due to physical differences in the steps. ANOVA results of this replication led to essentially the same conclusion as the initial study—that the nosing-to-nosing measurement system is acceptable for measuring step dimensions.
Simulation-Based Analysis and Intuitive Visualization of the Cutting Edge Load in Micromilling of Hardened Steel

The precise micromanufacturing of complex dies with small structures for sheet-bulk metal forming is a challenge due to the high hardness of the materials to be machined. Experiments have shown that micromilling of these difficult-to-machine materials is possible despite of their high hardness. Nevertheless, the higher wear of the tools plays a decisive role. When implementing the machining task as five-axis process, it is possible to control the wear distribution by tilting the milling tools. In this paper, a simulation system is presented which determines the loads acting on the cut- ting edge with regard to different criteria, e.g., the machined material or the effective impulse. Based on this knowledge, it is possible to design the milling process to minimize the tool wear and thereby to increase the lifetime of the milling tools. In order to show the applicability of the simulation system, test workpieces were machined and the experimental results are compared to the simulation data.
Matters of practice

It is obvious that the lives of things and practices are mutually constituted and densely interwoven. It is also obvious that really significant trends like the massive increase in CO2 emissions over the last few decades are outcomes of what Schatzki (2010a) describes as ‘practice-arrangement’ nexuses. Situated in the space between these two opening sentences, the purpose of this chapter is to develop a practice theoretically compatible account of material relations that helps conceptualise rapid increases in per capita energy demand.
PVT1 regulates inflammation and cardiac function via the MAPK/NF-κB pathway in a sepsis model

The aim of the present study was to investigate the role of plasmacytoma variant translocation gene 1 (PVT1) in the occurrence and development of sepsis-induced inflammation and cardiac dysfunction and its underlying mechanism. A sepsis rat model was first established by cecal ligation and puncture. The mRNA levels of PVT1 and microRNA-143 in the myocardial tissues of rats were detected by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) analysis. Cardiac function, levels of myocardial injury markers and inflammatory indicators were detected following PVT1 knockdown. The regulatory effect of microRNA-143 on PVT1 was assessed using a luciferase reporter gene assay and RT-qPCR analysis. The specific role of PVT1 in regulating the mitogen-activated protein kinase (MAPK)/nuclear factor (NF)-κB pathway was detected using western blot analysis. PVT1 was downregulated and microRNA-143 was upregulated in the myocardial tissues of sepsis rats. The left ventricular peak pressure was markedly decreased in the sepsis rats. By contrast, the left ventricular end diastolic pressure, levels of inflammatory indicators, myocardial injury markers and complement proteins of C5 and C5a were increased in the sepsis rats. The above changes were reversed by PVT1 knockdown or the upregulation of microRNA-143. MicroRNA-143 was confirmed as being bound to PVT1 using the luciferase reporter gene assay and RT-qPCR analysis. Upregulated PVT1 was capable of activating the MAPK/NF-κB pathway. Taken together, PVT1 was upregulated in the myocardial tissues of sepsis rats, which inhibited cardiac function and promoted the secretion of inflammatory factors; and the mechanism was associated with the MAPK/NF-κB pathway.
Sleep problems, behavioral problems, and neurocognitive functioning in snoring school-aged children

Purpose The aim of this study was to assess the sleep problems, behavioral problems, and neurocognitive functioning in snoring school-aged children (6-10 years old). Methods Twenty-seven snoring children and 35 nonsnoring children attended the study. The parents completed the Sleep Disturbance Scale for Children (SDSC), an instrument assessing the frequency of sleep problems and snoring. Behavioral problems were assessed by parents with the Child Behavior Checklist (CBCL) and the Conners’ Parent Rating Scale-Revised (CPRS-R) and by teachers with the Teacher Report Form (TRF) and the Conners’ Teacher Rating Scale-Revised (CTRS-R). The neurocognitive functioning of the two groups was compared with the Wechsler Intelligence Scale for Children (WISC-III) and the Developmental Neuropsychological Assessment (NEPSY). Results The snoring children had more sleep breathing disorders (p < .001), they had more problems in sleep-wake transition (p < .01), they were sleepier (p < .05), and they had more nighttime sweating (p < .05) than the nonsnoring peers. On the CBCL, the snoring children had more internalizing problems (p < .05) and total problems (p < .01) than the nonsnoring children, especially symptoms of anxious/depressed (p < .01), withdrawn/depressed (p < .01), and thought problems (p < .01). On the CPRS-R, the snoring children had more social problems (p < .01), they were more anxious and shy (p < .01), and they had more psychosomatic symptoms (p < .05) than the nonsnoring peers. Several associations between sleep quality parameters and behavior were found. Contrary to parents, teachers did not report any behavioral problems in snoring children. No differences were found between the two groups in the neurocognitive assessments. Conclusions Snoring school-aged children are at risk for internalizing problems, thought problems, and social problems. Children with habitual snoring, sleep-related symptoms, and daytime problems should be referred to diagnostic assessment and possible treatment.
On Controlling Wind Power Transmission to the Grid via AC and DC Connections

In modern power grids, large renewable energy sources dominated by wind turbine (WT) installations are highly penetrated in a dispersed geographically area. The challenging issue of effectively controlling the power transmission from WTs to the ac grid is considered in this paper. Since long distance lines may be necessary for this connection, the stiffness of the ac grid becomes an essential parameter which is taken into account for the system and control performance. A comprehensive review of the doubly-fed induction generator (DFIG)-based WT system integration via ac or dc transmission is considered and examined in view of a novel, generic, cascaded type control scheme. As expected and shown by extensive simulations, especially for the case of weak ac grids, the controlled de connected WT system response is superior to that of the direct ac connection. Also, in all cases the dc link connection provides an effective and independent power or voltage regulation caused from the fact of relaxing the DFIG operation from other control tasks related to the ac grid characteristics.
A PROPAGATION MODEL FOR MOBILE ENVIRONMENT IN CAIRO CITY

In this work, a propagation model is developed to predict the path loss in mobile environment for Cairo City. This model is a modification of Lee model that makes it suitable for both macrocells and microcells. The model is based on the basic propagation equations and the practical results measured in crowded area in Nasrcity, Cairo.
1 BANK LENDING , FINANCING CONSTRAINTS AND SME INVESTMENT

SME investment opportunities depend on the level of financing constraints that firms face. Earlier research has mainly focused on the controversial argument that cash flow-investment correlations increase with the level of these constraints. We focus on bank loans rather than cash flow. Our results show that investment is sensitive to bank loans for unconstrained firms but not for constrained firms, and trade credit predicts investment, but only for constrained firms. We also find that unconstrained firms use bank loans to finance trade credit provided to other firms. Our results illustrate alternative mechanisms that firms employ both as borrowers and lenders (100 words).
Preparation, characterization, and drug‐release properties of poly(N‐isopropylacrylamide) microspheres having poly(itaconic acid) graft chains

An inverse suspension polymerization method for the preparation of thermoresponsive hydrogel microspheres based on N-isopropylacrylamide was described in this article. The polymerization reaction was carried out at 200 rpm stirring rate and the microspheres obtained were in the size range of 71–500 μm in the swollen states. The particles were sieved by using ASTM sieves. The selected fraction (180–250 μm) of poly(N-isopropylacrylamide) (PNIPAAm) microspheres was used for radiation-induced modification with itaconic acid (IA) to obtain PNIPAAm/poly(itaconic acid) graft copolymer. Viagra and lidocaine were used as model drugs for the investigation of controlled-release behavior of the microspheres. Incorporation of IA graft chains onto microspheres enhanced significantly the uptake of both drugs and further controlled release at specific pH values. The release studies showed that some of the basic parameters affecting the drug-loading and -release behavior of the microspheres were pH, temperature, particle size, and chemical nature of drug. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 97: 1115–1124, 2005
Comparison of maximum muscle torque values of extensors and flexors of the knee joint in kickboxing and taekwondo athletes

In martial arts the key element of the initial preparation is shaping specific coordination skills – appropriate reactions to the opponent’s actions, optimal use of their own technical skills [1-3]. Nonetheless, motor training constitutes an important link of the training process. As proven by studies athletes who achieve the highest sports results are characterized by a similar level of fitness [4-7]. An essential element of rational motor training is diagnostics of its effects. Each training reduces exercise capacity of the body. It is restored only after some time, and then if training was conducted properly, exceeding of the initial values takes place – supercompensation [8]. Simple and objective assessment methods of training effects include the methods of assessing muscular force moments. They are used under static and isokinetic conditions. They provide various information regarding a given muscle group [9-11]. In martial arts competition involves a clash of two sportsmen in a form of impacting the opponent’s body in order to document own advantage. Kickboxing and taekwondo are sports disciplines in which the form of clash of competing athletes includes strikes using arms and legs. In both disciplines harsh measures of impact on the opponent’s body are used. It can be stated that kickboxing and taekwondo have numerous common features [12]. The main cognitive objective of the article was to compare muscular force moment values of extensors and flexors of the knee joint measured under static and isokinetic conditions in kickboxing and ITF taekwondo athletes.