Miracle-dz/UniFAR-FTUs huggingface dataset:
Mediastinal germ cell tumors: a narrative review of their traits and aggressiveness features.

Objective Mediastinal extragonadal germ-cell tumors (MEGCTs) are rare neoplasms with a multifaceted clinical behavior. This paper is devoted to review their main characteristics, including histological patterns and different factors of aggressiveness in MEGCTs. Proper understanding of the latter can help to better stratify patients' prognoses and improve clinical management. Background Different theories exist on the origin of MEGCTs, including primordial germ cells deposition during embryogenesis. MEGCTs predominantly affects young males and aggressiveness follows the ability of local and systemic spread of each germ-cell neoplasia subtype, as well as their distinct responsiveness to therapy. Indeed, non-seminomatous MEGCTs have a worse prognosis. Unfortunately, they are also more frequent than seminomas in the mediastinum. Regardless of histological type, local aggressiveness can follow tumoral expansion with compression on or infiltration of mediastinal structures. Chemotherapy can be effective in reducing neoplastic volume, but different levels of sensitivity can be found in different MGCTs. In particular, a chemo-resistant teratoma component of a mixed MEGCTs can undergo a paradoxical enlargement after chemotherapy, while other components of the tumor regress. This is reflected by a concomitant normalization of serum tumoral markers and cardiopulmonary deterioration due to compression. Such clinical phenomenon, called growing-teratoma syndrome (GTS), requires a prompt surgical approach. Methods A literature research of pertinent epidemiological, pathological and clinical articles was conducted. Conclusion The mediastinum can harbor different kinds of neoplasia, including GCTs. The full spectrum of MEGCTs includes a variety of tumors with different clinical behaviors. Aggressiveness follows the inherent ability of local and systemic spread of each neoplastic type, as well as their distinct responsiveness to therapy.
Silk fibroin nanofibers loaded with hydroxytyrosol from hydrolysis of oleuropein in olive leaf extract

The purpose of this study was to prepare antimicrobial silk fibroin nanofibers from the aqueous formic acid solutions of silk fibroin and hydroxytyrosol with the in situ hydrolysis of oleouropein present in olive leaf extract using electrospinning method. With the use of aqueous formic acid solution of olive leaf extract and silk fibroin resulted in more uniform and beadless nanofibers. Morphological properties of electrospun nanofibers were investigated using Scanning Electron Microscope (SEM). The diameter of electrospun nanofibers ranged between 70 nm to 150 nm. The nanofiber diameter did not changed much with increasing concentration of olive leaf extract added into silk fibroin solution to be used in electrospinning process. The increase in olive leaf extract concentration resulted in beadless and uniform nanofiber structures. The average diameter of the nanofibers prepared with fibroin solution having 10 % olive leaf extract was determined as 85 ± 10 nm. Results revealing the formation of smoother and uniform nanofibers was attributed to the crosslinking effect of oleuropein and polyphenols present in olive leaf extract with certain functional groups in silk fibroin structure. Antibacterial properties of hydroxytyrosol loaded nanofibers against Staphylococcus epidermidis (Gram +) and Escherichia coli (Gram -) were confirmed with the clear inhibition zones observed in disc diffusion tests. Silk Fibroin nanofibers loaded with hydroxytyrosol may offer a new alternative biomaterial to be used in wound dressing or medical textile applications.
Examining drivers affecting E-learning system quality during COVID-19

Due to COVID-19 global crisis, schools and universities worldwide were closed to contain its spread (UNESCO, 2020). E-learning systems have been massively adopted to facilitate the continuity of education. Accordingly, investigating the key determinants of e-learning systems success is vital to deliver effective education service to mitigate the negative lockdown impacts. Seventeen hypotheses were formulated. The findings showed positive relationships among system quality, system features, content quality, and perceived usefulness. Additionally, system features, computer experience, self-efficacy, and college support positively affect the perceived ease of use. Perceived enjoyment has strong influences on perceived usefulness, perceived ease of use, and attitude towards the e-learning system. Furthermore, attitude towards e-learning was proved to be positively influenced by perceived usefulness, perceived ease of use, perceived enjoyment, instructor quality, and college support. Finally, attitude towards e-learning has a strong effect on behavioural intention to use the e-learning system. Conclusion and practical implications were developed.
The Problems of The Marriage Age Changing in Indonesia in the Perspectives of Muslim Jurists and Gender Equality

The rules regarding the age limit for marriage as contained in Article 7 of Law no. 1 of 1974, which states that the minimum age of marriage for men is 19 years and for women is 16 years. These rules were amended through law no. 16 of 2019, which stipulates that the age limit for marriage, both for men and women, are in the same age, 19 years old. This change is intended to bring benefits of marriage minimizes the conflict in the household. But in fact, the changing age limit for marriage still creates some problems; for example, not a few Muslims view that in Islam, there are no provisions regarding age limits and there are dispensations for those forced to marry under a predetermined age. This research aims to find out the problematics of the law on changing the age limit for marriage. The research approach used qualitative with descriptive analysis methods and literature review. The results of the study indicate that there are several problems regarding the age limit between First, Islamic law does not stipulate a minimum age for marriage, so that some people do not heed the provision; Second, there are some rules regarding dispensation for those who want to get married at the age of 19 by putting forward to the court. This is an opportunity to violate the regulations; Third, changes to the law that have raised the age limit for marriage, in reality, in society, have not been able to stop the rate of early-age marriage.
Systematic Comparison on Convective Heat Transfer Characteristics of Several Pin Fins for Turbine Cooling

This paper is focused on the heat transfer augment ability and friction factor of different cross-section pin fins. An experimental study is conducted in a wide rectangular channel. The steady-state thermochromic liquid crystals (TLC) method is applied to measure the tested surface temperature. Nine sets of pin fins are employed in the experiment. The nominal diameter of all pin fins is the same value. Nine sets of pin fins have three roundness shapes (Circle, Ellipse and Oblong), three streamline shapes (Dropform, NACA and Lancet) and three quadrangle shapes (Diamond, Diamond-s and Square), respectively. The arrangement parameters of all nine shapes are kept the same. As they have the same nominal diameter and arrangement, the channel blockage ratio is the same for each pin fin set. Reynolds numbers range from 10,000 to 60,000. The pressure losses of pin fin arrays are measured to obtain friction factor. Meanwhile, the overall thermal performances of all nine sets are also considered and compared. The results show heat transfer enhancement abilities of quadrangle shape pin fins are relatively higher than the roundness and streamline shapes. Diamond-s pin fins present the largest averaged Nusselt number and overall thermal performance on the endwall for all the nine pin fins under different Re. Concerning overall thermal performance, the traditional Circle pin fin is the second best. The pressure loss of streamline shape pin fins is the lowest in these three shape types. Moreover, the characteristic of local heat transfer distribution varies substantially for different pin shapes at low Re.
Changes in the antioxidant and glyoxalase enzyme activities in leaves of two Moroccan sorghum ecotypes with differential tolerance to nitrogen stress

Nitrogen stress as well as other stresses can negatively impact the plant development and metabolism. Generally, stress factors increase the reactive oxygen species (ROS) and methylglyoxal (MG) production, which may, in the absence of effective protective mechanisms, induce irreparable metabolic dysfunction and death. The effect of different amounts (from deficiency to excess) of nitrate, ammonium or nitrate combined to ammonium, on enzyme activities of antioxidant and methylglyoxal detoxification systems of two sorghum ecotypes (3P4 and 4P11) was studied. The N supply was performed per pot during the sowing step using potassium nitrate and/or ammonium sulfate. Six N treatments were applied using 120, 240 and 480 Kg ha-1 of ammonium or nitrate and three other treatments were applied using 120 kg ha-1 nitrate combined to 120, 240 and 480 kg ha-1of ammonium. The specific activities of superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), glutathione reductase (GR), glyoxalase I (Gly I) and glyoxalase II (Gly II) were investigated. Results showed that, ammonium excess and N-deficient conditions increased the contents of malondialdehyde (MDA), and induced the enzyme activities of ROS and MG detoxification systems, supporting the sorghum’s ability to counteract the negative effect of N stress (deficit and excess). We have also shown that the SOD, CAT, GR and Gly I enzyme activities were higher in the 4P11 ecotype compared to the 3P4 ecotype. These results indicate that sorghum ecotypes exhibit differential tolerance to N stress and suggest that the 4P11 ecotype has higher capacity to cope with N stress.
Isolasi dan Identifikasi Bakteri Pendegradasi Logam Timbal (Pb) yang Bersumber dari Danau Tempe Kabupaten Wajo Sulawesi Selatan

Penelitian ini bertujuan untuk mengisolasi bakteri yang mampu mendegradasi logam timbal (Pb) sehingga dapat menjadi alternatif dalam mengatasi masalah pencemaran. Metode yang digunakan adalah menginokulasikan sampel sedimen pada media Zobell 2216 E, kemudian bakteri yang tumbuh dimurnikan pada media NA. Setelah itu bakteri diidentifikasi dan dilakukan uji kemampuan degradasi Pb dengan menggunakan alat spektrofotometer serapan atom (SSA). Dari penelitian diperoleh bakteri jenis Pseudomonas aeruginosa dengan kemampuan menurunkan konsentrasi logam timbal (Pb) dari 1 ppm menjadi 0,45 ppm.
Synthetic Inertia Control of Grid-Connected Inverter Considering the Synchronization Dynamics

The increasing penetration of renewable energy resources facilitates the carbon footprint reduction process yet reduces the power system inertia. As a result, the grid frequency and the rate of change of frequency (RoCoF) might probably go beyond the normal range, resulting in unexpected load shedding, generator tripping, and even frequency instability. To address this problem, grid-connected inverters are designed to participate in frequency regulation and provide the equivalent inertial support. Nevertheless, the inertia emulation effect is affected by the inverter synchronization dynamic and high RoCoF events may occur as the result of poor synchronization dynamics. In view of this limitation, a synthetic inertia control is developed in this article considering the synchronization dynamics. The synthetic inertia principles and control design guideline are explicitly provided. Finally, hardware experimental results of a scaled-down power system prototype are provided to validate the effectiveness of the proposed approach.
Determination of Tetracycline Residues in Milk by High Performance Liquid Chromatography

Milk is an important constituent of human diet. It is consumed by all age groups particularly children and elderly people. India is the first ranker in milk production in the world with a total annual production of 146.3 million tonnes (18.5%) and per capita availability 337 g/day (NDDB, 2016). The per capita availability of milk in Haryana is 835 g/day (DAHD, 2016). It is therefore important to provide due attention to the quality of milk produced and distributed to the consumers.
What Stops the Internationalization of Emerging Market Multinational Corporation (EMNCs): Designing a Strategic Framework for Global Business

The aim of the study is to formulate strategic guidelines for organizations to achieve successful globalization. The study is mainly focused on organizations for emerging markets or underdeveloped economies that have the capacity to grow globally and capture international market share. In order to achieve the objectives of the study, a questionnaire has been adopted and data was collected from a business market. Regression analysis, Pearson correlation, and descriptive analysis have been applied to collected data. Results of the study reveal that all of the three variables Foreign Regulations (FR), Institution support (IS), and Corporate Strengths and Competencies (CSC) have a positive and significant relationship with corporate globalization. Results of the study may be used for the strategy formulations process for globalization and companies may adopt the results for strategic decision-making.
Facilitating sporting and non-sporting career goals of elite athletes through mentoring programmes

ABSTRACT Research question Many elite athletes pursue higher education or professional employment alongside their sport career. Formal mentoring relationships help athletes to balance the demands of a dual career. Thus, the purpose of this study is to investigate the interrelationship between mentoring, values conveyed in mentoring, and the satisfaction with sporting and non-sporting career goals from a mentee and mentor perspective. This research contributes to the existing literature by examining how mentoring can help athletes attain their dual career goals from a holistic perspective. Research method Elite athletes (i.e. competing in international competitions; n = 105) and business professionals who function as mentors (n = 101) are surveyed regarding their satisfaction with the mentoring relationship and career goals. Logistic regression analyses assessed the proposed interrelationships. Results and Findings The career development function and conveying performance are positively associated with mentees’ multiple sporting and non-sporting career goals. Greater investment into mentees’ career development and the conveyance of performance and trust is positively associated with mentors’ satisfaction (i.e. supporting the mentee and achieving personal career benefits). Implications Conveying performance as value is crucial for increased positive outcomes for mentees, such as easy integration into the workplace and society. A mentor investing more time and consideration into the mentoring relationship increases the mentor and mentee’s satisfaction. A mentoring relationship founded on trust is precious for the mentor.
Backstepping control for stochastic nonlinear strict-feedback systems based on observer with incomplete measurements

In this paper, the control problem for a class of stochastic nonlinear systems with incomplete measurements is investigated based on Luenberger-like nonlinear state observer. The systems are described as strict-feedback cyber-physical systems, in which the communication between the control centre and the physical system is subjected to disturbances. The disturbances, such as information packet losing or transmission medium saturation, cause state variables to be unavailable or distorted, which results in incomplete measurements. To solve these problems, two state estimators are designed for different transmission cases, based on which two backstepping control approaches are adopted. The stability conditions of the state estimators and closed-loop system are derived. It is proved that the control methods can guarantee that all the signals of the closed-loop system are uniformly ultimately bounded in mean square. The effectiveness of the proposed methods is confirmed by simulation examples.
Zn‐Vacancy Engineered S‐Scheme ZnCdS/ZnS Photocatalyst for Highly Efficient Photocatalytic H2 Evolution

Vacancy defects engineering is a valid strategy to enhance the separation efficiency of photo‐generated charges. Herein, a zinc vacancy mediated S‐scheme ZnCdS/ZnS composite derived from ZnCdS/MOF‐5 was constructed in‐situ through the sacrificial reagent of Na2S/Na2SO3 aqueous solution in visible‐light irradiation. The MOF‐5 converted to ZnS (ZnS−VZn) with abundant zinc vacancies which were proved by the XPS and PL results. ZnS−VZn has two‐photon absorption performance, which immensely enhanced the visible light absorption capacity for the photocatalysts. The photo‐generated electrons of ZnS−VZn on the Zn‐vacancy defect would regroup with the holes in the valence band (VB) of ZnCdS via ohmic contact which is induced by Zn‐vacancy defects. Therefore, the photoexciton of ZnCdS can be able to separate effectively and eliminate the useless electrons and holes. The ZnCdS/ZnS(20) sample revealed an outstanding photocatalytic hydrogen generation rate of 12.31 mmol h−1g−1 with a turnover number (TON) of 64.61, which is about 82.06 and 21.98 times greater than that of neat ZnS−VZn and ZnCdS. This work gives an insight into the design of the zinc vacancy‐engineered S‐scheme photocatalyst of ZnCdS/ZnS for highly efficient photocatalysis.
Complex Dynamics Analysis of Closed-Loop Supply Chain considering CSR and Fairness Concerns

This paper constructs a supply chain model composed of a manufacturer and a recycler. The manufacturer’s CSR and the recycler’s fairness concerns are introduced to the benchmark model in turn, and the optimal decision-making problems under different models are studied and compared. The findings show that the manufacturer’s utility will increase and the recycler’s utility will decrease when the manufacturer undertakes CSR within a reasonable range. The optimal utility of manufacturers does not change, and the utility of the recycler is affected by the proportion of CSR undertaken by the manufacturer when the recycler considers fairness concerns. Based on the CSR and fairness model, this paper constructs a dynamic decision system of production quantity and eco-innovation effort. We analyze the influence of adjustment speed on the dynamic decision system and obtain the conditions required to maintain system stability. The research conclusion indicates that with the increase of adjusting parameters, the system gradually appears chaotic state from a stable state and the chaotic state of the system has a negative impact on the utility of manufacturer and recycler. In order to avoid chaos in the system, this paper uses the delayed feedback method to control the system.
BUSINESS INTELLIGENCE ON SUPPLY CHAIN RESPONSIVENESS AND AGILE PERFORMANCE: EMPIRICAL EVIDENCE FROM MALAYSIAN LOGISTICS INDUSTRY

Purpose: This study examine how BIS implementation affects the agile efficiency of the supply chain with the logistics industry's supply chain responsiveness. As a variable for assessing the relationship and effect on agile efficiency, business intelligence competence (managerial competence, technological competence and cultural competence) and supply chain responsiveness will be investigated. Methodology: A survey questionnaire comprised of 39 questions using the purposive method of sampling used to select the target group and replied to the survey with the outcome of a total of 50 respondents, via SPSS, the data was further analysed to examine the relationship between all variables. Findings: The study finds that (1) business intelligence competence has a significant positive impact on the response to the supply chain, (2) business intelligence competence has a significant positive impact on the supply chain's agile performance, (3) responsiveness to the supply chain has a significant positive impact on agile performance. Unique contribution to theory, practice and policy: This study contributes to enhancing the quality and effectiveness of the business operation of the 3PL service provider, government customs and port department.
Kinetics on Thermal Decomposition of Iron(III) Complexes of 1,2-Bis(Imino-4’-Antipyrinyl)Ethane with Varying Counter Anions

A comparative thermal decomposition kinetic investigation on Fe(III) complexes of a antipyrine Schiff base ligand, 1,2-Bis(imino-4’-antipyrinyl)ethane (GA)), with varying counter anions viz. CIO4-, NO3-, SCN-, Cl-, and Br-, has been done by thermogravimetric analysis by using Coats-Redfern equation. The kinetic parameters like activation energy (E), pre-exponential factor (A) and entropy of activation (ΔS) were quantified. On comparing the various kinetic parameters, lower activation energy was observed in second stage as compared to first thermal decomposition stage. The same trend has been observed for pre-exponential factor (A) and entropy of activation (ΔS). The present results show that the starting materials having higher activation energy (E), are more stable than the intermediate products, however; the intermediate products possess well-ordered chemical structure due to their highly negative entropy of activation (ΔS) values. The present investigation proves that the counter anions play an important role on the thermal decomposition kinetics of the complexes.
Differences in the Ice Particle Shattering Impact on the CIP Measurements in the Stratiform Cloud Region and the Embedded Convection Region

Stratiform clouds with embedded convective cells is an important precipitation system. Precise knowledge of the cloud’s microphysical structure can be useful for the development of a numerical weather prediction model and precipitation enhancement. Airborne measurement is one of the important ways for determining the microphysical structure of clouds. However, cloud particle shattering during measurement poses a serious problem to the measured microphysical characterization of clouds. In order to study the different influences of the shattered ice particles on the standard cloud imaging probe (CIP) measurement in the stratiform cloud region and the convective cloud region, a time-variant threshold method to identify the shattered fragments is presented. After application of this algorithm, the shattered fragments were recognized and their impacts on the particle size distribution (PSD), particle number concentration and ice water content measurement were analyzed. It was found that the shattering effect on the PSD decreases with the increasing size of less than 400 μm, fluctuates between 400 μm and 1000 μm and slightly increases with the increasing size of larger than 1000 μm on average in a stratiform region and a convective region. However, the average ratio of PSD uncorrected to that corrected for shattering events using the presented algorithm in convective clouds is larger than that in the stratiform regions in the whole size, and nearly twice that in the size of less than 1000 μm. The measured number concentration can be overestimated by up to a factor of 3.9 on average in a stratiform region, while in a convective region, it is 7.7, nearly twice that of a stratiform region. The ice water content in a stratiform region can be overestimated by 29.5% on average, but by 60.7% in a convective region. These findings can be helpful for the cloud physics community to use the airborne CIP measurement data for numerical weather and climate models.