Miracle-dz/UniFAR-FTUs huggingface dataset:
Morphologies induites dans les pièces en polyolefine moulées par injection

Des travaux de recherche tentent aujourd’hui de predire les proprietes mecaniques des polymeres semi-cristallins induites par leur mise en forme a l’aide de la mecanique des milieux heterogenes. Mais l’utilisation de ces modeles micromecaniques necessite une description dimensionnelle de la morphologie cristalline, aussi bien au niveau lamellaire qu’a l’echelle superieure des macrostructures cristallines induites. Dans ce contexte scientifique, ce travail de these s’est donne pour objectif de caracteriser finement les differentes morphologies que l’on peut rencontrer dans l’epaisseur des polypropylene et polyethylene lineaire injectes, et de determiner l’influence de certaines conditions de mise en œuvre sur ces morphologies. Les fonctions d’orientation des differents axes cristallographiques ont ete determinees par dichroisme infrarouge et a partir de figures de pole obtenues par WAXS sous anode tournante et sous microfaisceau synchrotron. La repartition des amas lamellaires et leurs dimensions ont ete determinees par SAXS. Finalement, la taille des structures cristallines a ete caracterisee par microscopie optique en lumiere polarisee. L’ensemble des resultats a ete utilise pour generer des modeles morphologiques a travers l’epaisseur des plaques injectees. Des structures morphologiques complexes, induites par la deformation, ont ete mis en evidence : des shish-kebabs avec des lamelles filles qui croissent de facon epitaxiale pour le PP, et avec des lamelles torsadees a droites pour le PEhd. Plus generalement, l’orientation de la phase amorphe est faible et l’anisotropie des proprietes mecaniques des polyolefines est gouvernee par l’orientation elevee de la phase cristalline. L’epaisseur des plaques et la masse molaire du polymere ont une forte influence sur l’orientation moleculaire et les morphologies cristallines obtenues, alors que la vitesse d’injection determine l’epaisseur des differentes couches morphologiques au travers de l’epaisseur, sans modifier sensiblement ni les niveaux d’orientation moleculaire ni les dimensions lamellaires.
The relationship between learners’ academic goal motives and L2 (second language) Willingness to communicate in English language classes: A look at academic goal motives’ orientations

Abstract The current study examined the relationship between academic goal motives and learners’ second language willingness to communicate in an EFL (English as a foreign language) context. It also investigated the potential orientations of students’ academic goal motives. A sample of 372 Iranian students on BA, MA, and Ph.D.s of teaching, translation, and linguistic and literature degrees at an Iranian university participated in the study. The participants completed two questionnaires investigating their academic goal motives and willingness to communicate in English language classrooms. The correlation analysis showed that academic goal motive was positively correlated with learners’ WTC(willingness to communicate) in English classrooms. Moreover, the findings revealed that students are motivated by both intrinsic (mastery, self-presentation, fake goodness, and self-made duty) and extrinsic (future achievement, family, peer, and the teacher) factors.
PHYTOCHEMICAL SCREENING, ISOLATION OF COUMARINS AND EXAMINING BIOACTIVITY OF PRANGOS PLATYCHLAENA BOISS. PLANT IN IRAQ

The Prangos platychlaena Boiss. a wild plant belonging to the Apiaceae family, is a native plant of Kurdistan-Iraq. The roots, leaves, stem and flowers of the plant were collected in the Halgurd mountain of the Kurdistan region of Iraq, and extracted by petroleum ether, ethanol and water to obtain the crude extracts. Our results showed that the plant contains different phytochemicals that are distributed unequally in different parts. The chromatography technique was used for the isolation and purification of three coumarins (5,8-dimethoxy psoralen, 5-methoxy psoralen and 8-methoxy psoralen) from the parts of the flower, all compounds are new among the Prangos species. The extracts of different plant parts and isolated compounds showed anti-oxidant and anti-microbial activities against pathogenic bacteria and yeasts. These findings suggested that this plant, specially their leaves and flowers can be used for the treatment of some diseases in the future.
The Impacts Of Acute Hypoxic Exposure And Other Concomitant Stressors On The Cardiorespiratory Physiology Of Coastal Elasmobranch Fishes

xv CHAPTER I — Introduction: Elasmobranch cardiorespiratory physiology and responses to stress . 2 Elasmobranch Fishes . 3 Anthropogenic Stress . 5 Climate Change . 5 Fishing Pressure . 7 Cardiorespiratory Physiology of Fishes . 10 The Elasmobranch Cardiorespiratory System . 14 The Cardiorespiratory Stress Response of Fishes . 17 Dissertation Aims and Structure . 18 References . 22 Figures. 35 CHAPTER II — Combined effects of acute temperature change and elevated pCO2 on the metabolic rates and hypoxia tolerances of clearnose skate (Rostaraja elganteria), summer flounder (Paralichthys dentatus), and thorny skate (Amblyraja radiata) . 38 Abstract . 39. 39 Introduction . 40
Addressing Public Health Emergencies via Facebook Surveys: Advantages, Challenges, and Practical Considerations

Surveys of the general population can provide crucial information for designing effective nonpharmaceutical interventions to tackle public health emergencies, such as the COVID-19 pandemic. Yet, conducting such surveys can be difficult, especially when timely data collection is required. In this viewpoint paper, we discuss our experiences with using targeted Facebook advertising campaigns to address these difficulties in relation to the COVID-19 pandemic. We describe central advantages, challenges, and practical considerations. This includes a discussion of potential sources of bias and how they can be addressed.
Investigation of behavioral aspects stimulating cycling : a Flanders, Belgium case study

o elevate adoption levels various interventions, programs and stimulants are being introduced in developed countries. In Flanders such programs exist but current accidents, lower safety perceptions raise ambivalence over their effectiveness and raise urge to evaluate them. To address this a survey was conducted. Results imply that aging category is more concerned about safety, infrastructure, while younger age groups are more inclined towards measures i.e. stimulants, environment and social outlook. Working age class has a delicate transition from youth to aging category with evolution of social economic circumstances. Older age individuals also rely more on peer support, while relative younger people like more of an individualist approach. Intervention programs aiming to reduce traffic interaction, exposure between weak and strong road users stimulates in reducing risk perception among cyclists. Results shall be treated as a guideline for programs implicating safety perception, reduce determinants which effect cycling and ultimately elevating cycling levels.
More Risk, More Information: How Passive Ownership Can Improve Informational Efficiency

We identify a novel economic mechanism through which passive ownership positively affects informational efficiency in the cross-section of firms. Passive investors’ inelastic demand lowers a firm’s cost-of-capital, inducing it to take more risk. The higher cash flow variance, in turn, incentivizes active investors to acquire more precise private information, pushing up price informativeness for firms with high passive ownership. High passive ownership also implies higher stock prices and higher stock-return variances. An increase in the aggregate size of passive investors amplifies these cross-sectional differences. We also document complementarities in firms’ real investment and investors’ information choices that can cause information crashes.
Strategies to improve Chlamydomonas reinhardtii as a recombinant protein host: from a small growth factor to a complex monoclonal antibody production

Chlamydomonas reinhardtii has emerged as a promising alternative host for recombinant protein expression. Despite its advantageous characteristics and low-cost production, its use is hampered by low expression levels of nuclear transgenes. In this thesis we test several strategies designed to reduce or overcome this limitation. As a result, on the base of a secreted fusion protein comprising a small growth factor and a reporter, the use of regulatory and stabilizing regions resulted in expression levels ranging from 1 to 100 µg /L of culture. We report the expression of a fully-assembled monoclonal antibody in Chlamydomonas nucleus, therefore, validating Chlamydomonas as a host for complex protein production. The cassettes and high throughput screenings developed emerge as innovative tools expanding the molecular toolbox available for Chlamydomonas nucleus. In addition, a scalable purification method to recover the target protein from culture medium has been developed and validated indicating a simple downstream processing for secreted recombinant protein production. Finally, we report that Chlamydomonas secreted components induce proliferation of murine fibroblasts and have a synergistic effect with supplied hEGF, unveiling the potential of extracellular components of Chlamydomonas for a variety of applications.
Map Recovery and Fusion for Collaborative Augment Reality of Multiple Mobile Devices

The map recovery and fusion is a key issue in the application of large scale and long-term augmented reality (AR) scenarios. However, they are still not addressed well in an efficient and precise way, especially for complex industrial environments. In this article, we propose a map recovery and fusion strategy based on vision-inertial simultaneous localization and mapping. We first develop a heuristic strategy that can fast search and match map points among multiple maps, and can be used for efficient map fusion. For map recovery, we leverage the inertial sensors for short time motion estimation, and transform the previous lost map to the current map. Based on this strategy, a novel framework for collaborative AR is implemented and can parallelly run in multiple mobile devices in real time. Extensive experiments have been carried out on a public data set, and the results show that the proposed method can recovery and fuse multiple maps with high completeness and precision.
Physiological quality of pelleted Cubiu (Solanum sessiliflorum Dunal) seeds

Abstract The objective of this study was to evaluate the effect of different coating materials on the physiological quality of cubiu seeds. This was evaluated with three agglomerate materials (manioc starch, inert talc and dolomitic limestone) and two binder polymers (polyvinyl acetate and gum arabic) with 30% concentration, and artificial dye finishing. The experimental design was completely randomized, in factorial scheme 3 (agglomerates) x 2 (binders), and additional treatment (bare seeds/control), containing four replicates and experimental units of fifty seeds/pellets. The seeds were evaluated for: yield; seed/pellet diameter; thousand seed weight; number of seeds per pellets; germination; germination speed index; mean germination time, seedling length; fresh and dry mass of the seedling and emergence. In general, pelletizing increased the weight and diameter of the propagation unit. The physical barrier applied to the seeds by pelletizing did not influence the germination, but delayed the germination rate concerning to bare seeds, and this effect was not observed in emergence seedling. The coating with dolomitic limestone and polyvinyl acetate presented the best results of germination and vigor.
Positive Development on Campus: Investigating the Psychometric Properties of the College Assets Measurement Profile for Undergraduate Students

Abstract:We introduce and evaluate the College Assets Measurement Profile for Undergraduate Students (CAMPUS), an assessment instrument for resilience factors in college-enrolled emerging adults. Developmental assets, its focus, are constructs proposed to protect against psychopathology, floundering, and riskiness, while also bolstering the likelihood of success, growth, and thriving. Literature reviewed covers emerging adulthood, unique challenges of college life, the developmental assets framework, and young adult resilience assessment. Research goals involved evaluating 3 indicators of the reliability of CAMPUS (internal consistency, temporal consistency, and item–total relationships) and 3 indicators of validity (factor structure, criterion relationships with symptomatology, and criterion relationships with life satisfaction). The sample consisted of 526 emerging adult university students with a subsample of 66 for test-retest analyses. Results indicated that the 120-item CAMPUS is reliable and valid for its intended population. Utility of the developmental assets framework for emerging adults is discussed. There is strong support for adopting CAMPUS for resilience assessment in college students.
Millimeter-Wave Magneto-Electric Dipole Antenna Array With a Self-Supporting Geometry for Time-Saving Metallic 3-D Printing

A specially designed millimeter-wave high-gain wideband magneto-electric (ME) dipole antenna array based on metallic 3-D printing technology is presented. In order to shorten the printing duration of the array that is related to the fabrication costs, components with novel self-supporting geometries in the printing process, including a waveguide-fed ME-dipole radiating element, a 1-to-4 power divider acting as the subarray feed, and a full-corporate E-plane waveguide feed network, are investigated. Benefitted from these components, the entire array configuration can be fulfilled by employing a time-saving printing scheme, which leads to a 15% reduction in the printing duration for an <inline-formula> <tex-math notation="LaTeX">$8 \times 8$ </tex-math></inline-formula> array, and the reduction can be further increased to 40% for a <inline-formula> <tex-math notation="LaTeX">$16 \times 16$ </tex-math></inline-formula> design in comparison with the reported 3-D printed Ka-band arrays with same sizes that were fabricated by using the traditional printing scheme. Simultaneously, excellent operating characteristics, including a wide bandwidth of 32.4%, a maximum gain of 27.1 dBi, and stable unidirectional radiation, are also confirmed experimentally by an <inline-formula> <tex-math notation="LaTeX">$8 \times 8$ </tex-math></inline-formula> prototype of the proposed array. This work offers a method to effectively reduce the printing time of the 3-D printed large-size antenna arrays with attractive performance, which would be of importance to the practical cost-effective large-scale applications in the emerging millimeter-wave wireless communications.
Is the NEM broken? Policy discontinuity and the 2017-2020 investment megacycle

The recent history of Australia’s National Electricity Market (NEM) from 2012-2017 has been problematic with sudden coal plant closures, a tight domestic gas market and sharply rising electricity prices. The supply-side response that followed from 2017-2020 was an investment megacycle – 12000MW of plant commitments comprising $20+ billion across 105 projects – most of them Variable Renewables. Problems emerged including entry lags, connection delays, system Frequency careering outside normal bands, failing system strength, rising Frequency Control Ancillary Service costs and increasing Operator interventions in the security-constrained dispatch process. Market institutions were caught out. Yet instead of identifying and addressing urgent problems, a suite of market redesign proposals emerged which focus on future investment and Resource Adequacy. In this article, we analyse recent NEM performance and find all pressing issues relate to realtime power system security, not Resource Adequacy, and reflect a Rate of Change problem stemming from record levels of simultaneous (asynchronous) new entry. Resolution requires establishment of ‘missing markets’ to restore power system resilience. Fundamental market redesign is a distraction – it may well become necessary but there is no united agreement as to why this is the case nor when it is required. As it stands, no reform proposal comes even close to resolving the NEM’s existing, and pressing, problems.
Effects of Methanolic Leaf Extracts of Azadirachta indica and Spondias mombin on the Kidneys Histology of Zidovudine Stress Induced Wistar Rats

The kidneys play a role in the maintenance of homeostasis by ensuring the excreton of waste and toxic substances from the body. Oxidative stress could be defined as an imbalance between the production of reactive oxygen species and an inability of the body system to scavenge the presence of free radicals. Intake of certain drugs and toxic substances exposes the kidneys to oxidative stress effects and this may lead to impairment of homeostasis and malfunctioning of the kidney. This study was carried out to access the efficacy in administration of single herbal extracts of either Azadirachta indica or Spondias mombin when compared to the combination of both herbal extracts in ameliorating the effects of oxidative stress in wistar rats kidney. The study was carried out using 25 male adult wistar rats of weight 180-200 g, the animals were randomly selected and Original Research Article Ubah et al.; JOCAMR, 7(1): 1-6, 2019; Article no.JOCAMR. 46169 2 were designated into groups A (Negative control group that received Rat chow and water, group B is the positive control group that received the administration of 450 mg/kg body weight of zidovudine drug, group C is the A. indica group that received 450 mg weight of zidovudine drug and 500 mg/kg body weight of methanoic leaf extract /kg body, group D is the S. mombin group that received 450 mg/kg body weight of zidovudine drug and 500mg/kg body weight of methanolic leaf extract and group E received a 450 mg/kg body weight of zidovudine and a combination of 500 mg/kg body weight of both methanolic leaf extracts of A. indica and S. mombin leaf. T administration was carried out once a day using orogastric tube for a period 21 days. At the end of the admnistration, the rats were sacrificed using chloroform inhalation technique and the kidney was fixed in 10% neutral buffered formal saline. Light mcroscopic evaluation of the kidney showed normal histological appearance of the kidney in group A as witnessed by the presence of glomerulus, proximal convoluted tubule (PCT), distal convoluted tubule (DCT), bowmans space (BS), while group B witnessed alterations in the histology of the liver as shown by the presence of haemorrhage in the glomerulus, shrinkage in the proximal and distal convoluted tubule and shrinkage of the bowmans space, group C and D witnesseed a restoration of the kidneys histology as evidenced by a reduction of haemorrhage in the glomerulus and shrinkage PCT and DCT. Group E showed an enlargement of the Bowmans space and shrinkage of the PCT and DCT. Hence the results proved the efficacy of single administration of herbal extracts in ameliorating the effects of oxidative stress when compared with the combination of the herbal extracts.
ANALYSIS OF QODIRIYAH NAQSYABANDIYAH'S ZIKIR TARIQAT AS A THERAPY FOR DRUG RECOVERY IN MALAYSIA

Drug addiction is a dangerous problem that continues to haunt the country to this day. Recurring without a noticable end even though the government has introduced various treatment methods and programs to curb the issue. This study is presented as an effort to highlight in addition to conventional methiods the best treatments based on spiritual therapy to aid the process of drug rehabilitation in Malaysia. The study examines the concept of remembrance from the perspective of the Qodiriyah Naqsyabandiyah Zikir Tariqat as a therapy for drug rehabilitation in Malaysia. This is a qualitative study which incorporates the method of interpretation to unravel the remembrance method as a therapy for drug addicts. Data collection was made through library research by examining key works related to TQN and concept of remembrance. The descriptive textual analysis method was used to analyze TQN concept and remembrance as a psychospiritual approach to drug addicts in Malaysia. The findings of this study found that the TQN remembrance method practiced by addicts at selected drug rehabilitation centers has a positive impact on drug rehabilitation. The implications of this study can fundamentally enhance and harmonize existing methods of drug rehabilitation in Malaysia. This is because the principle of zikir therapy is proven to improve oneÂs spiritual and mental health, besides helping addicts recover completely from this problem.
Capitalising new knowledge through R&D alliances: evidence from Catalan technology centres

: Science-industry R&D alliances have been a longstanding object of analysis in the literature as they are reinforced by the changing global economy and the fast-moving nature of technological research. In order to advance knowledge on how these alliances should be designed and managed, this paper examines whether the factors most valued by technology centres to engage in science-industry R&D alliances have an impact on the success of the alliance: planning, partner profile, trustworthiness, IPR protection issues and communication channels. The empirical application considers 58 technology centres located in the Spanish region of Catalonia from which data were collected. First, using factor analysis, we validate that items included in the survey are indeed grouped into the five factors identified in the literature review. Second, we use qualitative comparative analysis to explore which combination of factors best explains successful R&D alliances.
Multi-Objective Optimal Fuzzy Energy Management for Grid-Connected Microgrid

This paper proposes a fuzzy logic based energy management system (FEMS) for a grid-connected microgrid with renewable energy sources (RES) and energy storage system (ESS). The objectives of the FEMS are reducing the average peak load (APL) and operating cost through arbitrage operation of the ESS. These objectives are achieved by controlling the charge and discharge rate of the ESS based on the state-of-charge of ESS, the power difference between load and RES, and electricity market price. The effectiveness of the fuzzy logic greatly depends on the membership functions. The fuzzy membership functions of the FEMS are optimized offline using a Pareto based multi-objective evolutionary algorithm, nondominated sorting genetic algorithm (NSGA-II). The best compromise solution is selected as the final solution and implemented in the fuzzy logic controller.
Mol-7B-an 18-pin bundle operating 200 days beyond breach

Until now, experience with the consequences of longer operation of failed mixed oxide fuel pins in liquid-metal fast breeder reactor has not been available. Mol-7B, an 18-pin bundle, was originally specified and fabricated to test the SNR-300-Mk-Ia concept under extreme operating conditions, especially with a cladding temperature of 973 K. Because of larger uncertainties of flux distribution in the BR-2 reactor in Mol, Belgium, this bundle was irradiated with a rod power that was 20% higher as expected. As a consequence, 17 of the 18 pins failed during the irradiation campaign. The main reason was mechanical interaction of the fuel with the embrittled and corroded cladding and excessive fission gas pressure. Cladding opening was followed by chemical reaction between sodium coolant and the fuel. A partial blockage occurred from the buildup of the reaction product Na/sub 3/MO/sub 4/ and from the diameter increase due to uranate swelling. In spite of these severe failures and large fuel release to the coolant, the bundle could be operated with a high nominal rod power without cladding melting and more severe consequences on bundle integrity and on reactor safety.