Miracle-dz/UniFAR-FTUs huggingface dataset:
Optimization of Process Parameters in Drilling of Short Fiber (KENAF) Composite

The availability of natural fibers and ease of manufacturing have made the researches to replace the expensive and non-renewable synthetic fiber. Natural fibers like kenaf, oil palm, vegetable, bamboo, jute, yepi, sisal, coconut and pineapple leaf , banana and coir has been used, till now as a reinforcement in thermoplastic composite for applications in consumer goods, transportation, aerospace automobile, furniture, low cost housing and civil structures etc. This is due to better mechanical properties like high strength to weight ratio, high stiffness etc. Among all the machining operation, drilling is one of the important machining processes to produce the holes. This paper optimizes the process parameters namely cutting speed, feed, point angle and chisel edge width in drilling of natural fiber composites. Experiments were carried out as per the Taguchi experimental design and an L18 orthogonal array was used to study the influence of various combinations of process parameters in drilling. The results indicate that on Trust force, chisel edge width has more influence followed by point angle, speed and feed and on Torque, speed has more effect followed by feed, point angle and chisel width.
A Model for Collaborative Supply Chain : an Empirical Study of Moroccan Firms

Supply chain collaboration is widely recognized as a strategic way of guarantying a competitive advantage and ensuring business performance. Modelling and investigating the key features of collaborative supply chain and their impact on the performance helps firms to understand and improve their collaborative practices. This paper investigates the direct relationship between the key features of collaboration and collaborative performance attributes, and indirect relationship with process alignment as moderator. Based on data from 98 Moroccan firms from different industries, a structural equation modeling, through partial least squares PLS method, was used to test the hypothesized relationships. The findings suggest the existence of a statistically meaningful relationship between collaboration practices, process alignment and firm performance.
COMPARISONS BETWEEN SEASONAL AND DIURNAL PATTERNS OF SOIL RESPIRATION IN A MONTANE EVERGREEN BROAD-LEAVED FOREST OF AILAO MOUNTAINS,CHINA

Aims Soil respiration may have distinct dynamic patterns at different temporal scales since it is affected by diverse abiotic and biotic factors.Seasonal variation in soil respiration is largely controlled by abiotic factors such as temperature and soil moisture,whereas the regulation of diurnal variation is likely physiological rhythms of plants.Our objectives were to compare seasonal and diurnal patterns of soil respiration and to evaluate relationships between soil respiration and temperature at annual and diurnal scales.Methods We examined seasonal variations of soil respiration using infrared gas analyzers at monthly or bimonthly intervals from April 2004 to March 2005,and diurnal variations in July,September and November 2004 as well as in January,March and May 2005 in a montane evergreen broad-leaved forest in Ailao Mountains,China.Soil temperature,air temperature,soil water content and air humidity were measured at the same time.We evaluated Q10 values of soil respiration and correlations between soil respiration and soil temperature.Important findings Soil respiration fluctuated with distinct seasonal and diurnal patterns.Soil respiration was higher in the wet season(May through October) than in the dry season(November through April). Diurnal patterns of soil respiration varied among seasons.The mean rate of soil respiration was higher in nighttime than in daytime in July,September,January and March,but lower in November and May.On the whole-year basis,soil respiration correlated strongly with soil temperature and soil water content.However,on a diurnal scale,these regressions were not significant.Q10 values were 4.48,7.17 and 2.34 for the whole year,dry season and wet season,and their corresponding soil temperature ranges were 5.9-16.6,5.9-11.0 and 10.3-16.6 ℃,respectively.Our results demonstrate that biotic and abiotic factors have distinct impacts on soil respiration at different temporal scales in the forest.Estimation on daily and annual carbon fluxes based on instantaneous measurements of soil respiration,rather than 24-hour measurements,may cause severe deviation from actual values because of the lack of diurnal correlation between soil respiration and temperature.
Trade openness, financial development and economic growth in North African countries

This contribution investigates the relationships between financial development, trade openness and economic growth on a panel of four North African countries (Tunisia, Morocco, Algeria and Egypt), over a 5-year period from 1992 to 2016. Using system Generalized Method of Moment (GMM) in a panel data analysis, we found strong evidence of a positive link between trade openness and economic growth. We also found that trade openness appears to be working as a complement to financial development and, moreover, that the effect of trade openness is more pronounced in the presence of the financial development variable. The policy implications of this study appeared clear. Improvement efforts need to be driven by local-level reforms to ensure the development of domestic financial system in order to take full advantage of the technology transfer induced by international trade.
Causality in structural vector autoregressions: Science or sorcery?

This paper offers a simple presentation of structural vector autoregressions (SVARs) for estimating causal effects in applied economics. We emphasize connections between SVARs and instrumental variables (IV), both of which aim to extract exogenous variation from endogenous variables. We show that the population analogue of the Wald IV estimator is identical to the ratio of two impulse responses from an SVAR. We then present an SVAR analysis of Roberts and Schlenker (2013), which employed IV to estimate supply and demand of agricultural commodities. The SVAR reveals additional insights beyond IV. We highlight the assumptions required to gain these insights.
Polymorphisms of MBL1 gene intron 1 and exon 2 and its association with mastitis and milk quality in Chinese Holstein cattle.

【Objective】 The polymorphisms of MBL1 gene intron1 and exon2 and their correlation to mastitis and milk quality in Chinese Holstein cattle were investigated for the purpose of providing molecular maker information to facilitate the breeding efficiency of high-quality resistant cow. 【Method】 Sequencing,PCR-RFLP and CRS-PCR were applied to analyze the polymorphisms of three loci in MBL1 gene intron1 and exon2 in 596 Chinese Holstein cattle.Linkage disequilibrium and haplotype were analyzed using SHEsis Software. 【Result】 One SNP in the intron1 G855A and two SNPs in the exon2 G2651A (Val24Ile),T2686C (Ala35Ala) were found.At locus G2651A,the cows with genotype AA showed higher somatic cell score than those with genotypes GG and GA (P0.05),but there were no correlation between the SNP G855A,T2686C and somatic cell score,fat rate,protein rate and 305 d milk yield.Eight haplotype and 19 haplotype combinations were found in 596 Chinese Holstein cattle.The cows with haplotype combination H2H2 had the highest protein rate and somatic cell score.Haplotype combination H3H7 had the lowest somatic cell score.The cows with haplotype combinations H4H4 had the highest 305 d milk yield. 【Conclusion】 Considering the distribution frequencies of haplotype combinations,MBL1 gene H3H7 is a favorable haplotype combinations to the mastitis resistance selection and H4H4 can be chosen as the molecular markers for choosing high milk yield.
MORPHOLOGIC AND MORPHOMETRIC ANALYSIS OF ARTERIES IN MEDICOLEGAL AUTOPSIES

Objective morphologic and morphometric indices. Study was also undertaken to correlate morphological grades with morphometric Material medicolegal coronary, left coronary, left anterior descending and left circumflex artery was done for evidence of infarction and atherosclerosis respectively. All the four arterie numerical grades as per the American Heart Association criteria. Thickness of intima, thickness of media, diameter of lumen and diameter internal to the MICAPS software. Two morphome media thickness ratio (IMTR) were evaluated for severity of atherosclerosis. Result atheromas were seen atherosclerosis. Both parameters were directly proportional to the grades of atherosclerosis in all the four coronary arteries. Myocardial infarction was predominantly observed in Conclusion a reliable tool to assess the severity of atherosclerosis.
Induced Spawning of Giant Trevally, Caranx ignobilis (Forsskål, 1775) using Human Chorionic Gonadotropin (hCG) and Luteinising Hormone-releasing Hormone Analogue (LHRHa)

The giant trevally, Caranx ignobilis (Forsskål, 1775) was induced spawned at the National Fisheries Research and Development Institute, Taal, Batangas, Philippines to assess the possibility of captive breeding. Caranx ignobilis captive broodstock, six to eight-year-old (4.83 kg mean wt) were injected with: (a) 1,000 IU human chorionic gonadotrophin (hCG). kg-1; (b) 100 μg luteinising hormone-releasing hormone analogue (LHRHa). kg-1; (c) 5 mg carp pituitary extract (CPE). kg-1; and (d) No injection (Control). Ripe female fish was given two sequence intramuscular injections at 0600 to 0700 h and 1800 to 1900 h while male fish was given half dose injection at 1800 to 1900 h. One breeding set (1 female: 2 males) were released to spawn spontaneously in each of the four units of 40-ton circular tanks, done in five replications. Successful spawning was achieved in LHRHaand hCG-injected fish at 28–30 g.L-1 salinity and 27.6–29.25 °C in March to April of 2011 and 2012. Spawning occurred 24–52 h after 2nd injection and eggs hatched in 11–17 h. Fertilisation rate was significantly higher (P < 0.05) in LHRHa treatment (60.88 %) than hCG treatment (30.53 %). Mean spawned eggs, hatching rate and mean larvae produced were not statistically different (P > 0.05) between hCG (223,068 eggs.kg-1 breeder, 43.06 % and 41,547 larvae.kg-1 breeder, respectively) and LHRHa treatment (176,524 eggs.kg-1 breeder, 71.07 % and 56,040 larvae.kg-1 breeder, respectively). This is the first recorded captive breeding of C. ignobilis in the Philippines and an initial step towards developing the seed production technology for this new aquaculture species.
The Challenges Facing Masters Students in the College of Education in Dammam

This study aims to identify the challenges faced by masters students at the College of Education at Imam Abdulrahman bin Faisal University in Dammam, from the students’ point of view. The study population, from which the study sample was chosen, comprises all 220 masters students in the College of Education in Dammam. A random sample of 69 male and female students was chosen to achieve the goal of the study. The researcher used the descriptive survey method and designed a 47-item questionnaire focused on four dimensions: administrative challenges, technical challenges, financial challenges and academic challenges. The results indicate that participants’ average responses on the study dimensions ranged between 3.22 and 4.50, indicating a medium to high degree of agreement; financial challenges ranked highest, followed by academic challenges, administrative challenges and finally technical challenges. The results show no statistically significant differences due to gender, academic level or scientific department between the arithmetic means for the challenges facing masters students, in all fields of study, from their point of view.
Rotating Disk to Apply Wall Shear Stress on Cell Culture at Microscopic Observation

An experimental system of the Couette type flow with a rotating disk has been designed to apply wall shear stresses on the cell culture at the microscopic observation in vitro. The shear stress on the wall is calculated with an estimated Couette type of the velocity profile between the rotating disk and the culture plate. The constant rotational speed (lower than 100 rpm) produces the wall shear stress smaller than 3 Pa. The rotating disk system is mounted on the stage of an inverted phase contrast microscope to observe the behavior of cells adhered on the plate under the shear flow. The medium is refreshed at a slow speed by a syringe pump. The system is placed in an incubator, where temperature and CO2 content are kept 310 K and 5 percent, respectively. The experimental system allows observation of cells during incubation under the wall shear stress. The designed system is useful to apply wall shear stresses quantitatively on cell culture.
Where the Law of the Invisible Hand fails: applying the perspectives of an Economic Tourist as he ventures into the heart of Antediluvian Economics

Value is subjective. Pricing structures are assumed to be an expression of value, but the problem is that they do not really express a universal value. While tourists may be armed with a bundle of local currency and a supply of sunscreen to protect themselves from the elements of nature, it’s really the established institutions within the territory that pose the real threat to the sanity of the decision maker. This paper examines the role of ‘Information’ in an institutional framework with the aim of exploring the challenges that an economic tourist would be confronted with when attempting to determine the value of a commodity. This within a market which cannot be determined using typical market fundamentals. While an archetypal tourist would be capable of following a road map that may confirm his belief in the markets. However, his own interpretation of the information on that map will be challenged as he ventures further into the world of an antediluvian market where low levels of competition exist and the interaction between supply and demand would best be described as unstable. The problems that modern day economic tourists would face is greatly increased as they are confronted by new and unpredictable institutional information. This information has been developed over centuries within a culturally biased informational context regarding commodities and products in different markets. The real value of a product in an antediluvian economy is determined by the ‘value of Information’ held by the institution within that economy which would serve as a regulator of ‘value’. While value is subjective, the price set within the antediluvian economy may echo issues such as political, social and economic conditions, not reflected in the price, and thus create a flood of misperception to the aspiring tourists.
Linking Entrepreneurial Orientation to Export Performance

Currently, Portuguese companies are in a complex, dynamic and globalized context. It is essential to recognize strategic variables that influence and enhance growth in foreign markets and contribute to improving medium and long term performance. Thereby, analysing strategic variables, together with the knowledge of microeconomic reality, contributes to more aware and efficient measures taken by economic agents that meet the challenges of constant change, bolder competitors and demanding consumers. Abstract
Forecasting VaR in Spot and Futures Equity Markets

The goal of this paper is threefold. First, we present evidence for the validity of the ARMAGARCH model with tempered stable innovations to estimate one-day-ahead VaR in the cash and futures markets for three stock indices — S&P 500, DAX 30, and Nikkei 225 — for the period December 14, 2004 to December 31, 2008. This is the first time that testing of this model has been done for equity futures. Second, based on the vast theoretical and empirical literature suggesting its strong link with volatility, we test for the first time whether adding trading volume to the classical tempered stable model improves the forecasting ability of the model. Finally, we compare the number of times that the market data drop below the corresponding one-day-ahead VaR estimations for both spot and futures equity markets in CTS with and without models including trading volume. JEL classification: G12; G14; G17
Monitoring the morphological and functional state of students during the transition from middle to high school during the physical education process

Background: This study substantiates and defines organizational and methodological conditions to ensure the continuity of the physical education process during the transition from middle to high school. Materials and methods: The purpose of this study was to develop organizational and methodological conditions to ensure the continuity of physical education of schoolchildren during the transition from middle to high school by taking into account the results of pedagogical control of their physical condition. To achieve set goals and objectives and to obtain accurate research results, the following research methods were applied: theoretical analysis, survey, anthropometric and physiological methods, methods for determining the physical performance level, method for estimating somatic health, pedagogical methods of research, and methods of mathematical statistics. Results of the study: On the basis of holistic scientific analysis and to adequately plan educational materials, the main approaches for the differentiation of physical education tools were identified according to the functional capabilities of students during the transition from middle to high school. It was established that after a long period of rest (i.e., summer vacation) there was a decrease in the indicators of the functional state of respiratory system (e.g., vital capacity of lungs and duration of breath-holding on inhalation and exhalation), physical qualities (strength, speed, endurance, speed-strength), and physical performance of schoolchildren. Therefore, it is necessary to improve the content and structure of physical education during the transition from educational (middle school) to the terminative stage of specific orientation (high school). Conclusions: A slowdown in agerelated growth was revealed; in some cases, a decrease in absolute values was observed compared to previous measurements after winter and summer holidays.
The Correlation between Writing Interest and Vocabulary Mastery with Writing Argumentation Ability of Students at V Grade Elementary School 02 Ciputat South of Tangerang, Indonesia 2015

The objective of this research was to find out the correlation between writing interest and writing argumentation ability; to find out the correlation mastery of vocabulary and writing argumentation ability; and to find out the correlation between writing interest and mastery of vocabulary with writing argumentation ability. The research was conducted on January until March 2015 with the survey method and correlation techniques. The main subjects of the research are the students of grade V elementary school 02 Ciputat South Tangerang, Indonesia, random sampling technique with a sample of 50 students of 260 students. Research instrument development techniques are the test techniques, then the data results were analyzed quantitatively with the analysis of descriptive and inferential analysis. The results showed that:(1) the correlation of writing interest (X1) and writing argumentation ability (Y) has a correlation coefficient of 0.9798, significant at level α= 0.05 and α=0.01,96% strength of the correlation(2) the correlation mastery of vocabulary(X2) with writing argumentation ability (Y) has a correlation coefficient of 0.9781, significant at level α= 0.05 and α=0.01,the strength of association of 95.7%; (3) the correlation of writing interest X1) and mastery of vocabulary (X2) with writing argumentation ability (Y) has a correlation coefficient of 0.9853, significant at level α= 0.05 and α=0,01, the strength of the correlation 97.1%. The research findings are (1) there is a positive correlation between writing interest and writing argumentation ability, (2) there is a positive correlation between mastery of vocabulary and writing argumentation ability, (3) there is a positive correlation between writing interest and mastery of vocabulary with writing argumentation ability. Based on the findings above, it is concluded that writing argumentation ability can be increased by upgrading the writing interest and mastery of vocabulary.
Induction of lineage and differentiation of adult human neuroepithelial progenitors in vitro.

INDUCTION OF LINEAGE AND DIFFERENTIATION OF ADULT HUMAN NEUROEPITHELIAL PROGENITORS IN VITRO Xiaodong Zhang April 26, 2005 Neurosphere forming cells (NSFCs) have been derived from cultures of adult olfactory neuroepithelium obtained from patients and cadavers in serum rich medium. These neural progenitors remain undifferentiated when maintained in serum rich medium but have the potential to differentiate along glial or neuronal lineages. A totally defined medium (DM) was employed to examine their proliferation, lineage restriction and differentiation. None of the neurotrophic factors evaluated increased NSFCs viability or lineage restriction under the defined experimental conditions. Few of NSFCs ever express mature neuronal or glial markers in DM. To evaluate the potential of NSFCs to form oligodendrocytes, transcription factors, Olig2, Nkx2.2, and Sox10, were introduced into NSFCs to determine if their expression is sufficient for oligodendrocyte differentiation. Simultaneous transfection of Olig2-Nkx2.2, or Nkx2.2-Sox10 cDNA produced characteristic oligodendrocyte morphology and antigenicity including myelin basic protein. Furthermore, a population of Olig2-expressing NSFCs also expressed Sox10. Coculture of NSFCs
Dung beetle (Coleoptera: Scarabaeidae) assemblages across a natural forest-cerrado ecotone in Minas Gerais, Brazil

Variations in assemblage attributes across ecotones provides clear examples on how organisms perceive and respond to environmental changes, even at small scales. Dung beetles (Scarabaeidae) have been used as bioindicators of habitat quality due to their sensitivity to environmental changes. Dung beetles were sampled across a natural forest-cerrado ecotone in Brazil, and associated changes in assemblage structure were examined. Edge effects, here defined as consistent changes in assemblage parameters in relation to the distance to the forest-cerrado border, were also examined. Density of individuals and species were higher in the forest than in the cerrado, but overall richness was similar between habitats after controlling for sample sizes. Species composition differed greatly between habitats, and shared species were consistently more abundant in one or another habitat. Edge effects were not detected on richness nor species composition, and only weak effects were observed on abundance. It is concluded that the effect of the habitat (forest vs. cerrado) has a much stronger effect on the assemblage structure than the presence of the edge: dung beetles responded strongly to change in habitats, but weakly to the proximity of the edge between these habitats.
Effects of Ten Chinese Herbal Medicinal Ingredients on Proliferation and Resisting NDV Infection of CEF

Ten Chinese herbal medicinal ingredients, astragalus polysaccharide(APS), Chinese angelica polysaccharide(CAPS), epimedium polysaccharide(EPS), isatis root polysaccharide(IRPS), propolis polysaccharide (PPS), astragalus flavone (AF), epimedium flavone (EF), propolis flavone (PF), astragalosides (AS) and ginsenosides (GS), were added into chick embryo fibroblast (CEF), which were cultured for 24 hours, at five concentration respectively. After 12 hours, the cell was inoculated with Newcastle disease virus (NDV). At 72 hours after inoculation, the cellular activity was tested by Neutral Red Assay to evaluate the effects of the ten ingredients on proliferation and antiviral infection of the cell. The results showed that all of the ten could promote the cell proliferation and resisting the virus infection in different degrees. The better was AF,APS,IRPS,PF and GS in proliferation-promoting and GS and IRPS in antiviral infection. Some ingredients had their stronger one in two actions. There were certain dose-effect relationships in these actions.