Miracle-dz/UniFAR-FTUs huggingface dataset:
Chemical Profile, In Vitro Antioxidant, Pancreatic Lipase, and Alpha-Amylase Inhibition Assays of the Aqueous Extract of Elettaria cardamomum L. Fruits

Phytochemical and pharmacological investigations of Elettaria cardamomum L. were mostly focused on its essential oil and organic crude extracts with little attention on its aqueous extracts. Therefore, the current study aimed to investigate the phytochemical profile, in vitro antiobesity, and antidiabetic activities of the aqueous extract of Elettaria cardamomum L. family Zingiberaceae. UPLC-ESI-MS/MS analysis is used for the aqueous extract characterization in both ionization modes. The analysis revealed the tentative identification of forty-seven compounds based on their MS/MS fragmentation pattern and comparison with the reported data. The identified compounds include eight flavones, thirteen phenolic and nonphenolic acids, one coumarin, and nineteen anthocyanins. Moreover, the in vitro antiobesity and antidiabetic activities were also studied. The results showed that E. cardamomum L. aqueous extract inhibits pancreatic lipase and α-amylase enzyme in a concentration-dependent manner, as 1 mg/mL extract was able to inhibit pancreatic lipase and α-amylase by 62.25% ± 0.58 (IC50 = 288.75 ± 1.3 µg/mL) and 70.42% ± 1.5 (IC50 = 220.5 ± 1.3 µg/mL), respectively. Conclusively, the current study indicated that the investigated biological activities of Elettaria cardamomum aqueous extract were attributed to the existence of biologically active metabolites such as flavones, phenolic and nonphenolic acids, coumarins, and anthocyanins. Moreover, it proposed that the aqueous cardamom extract can be used as a natural potential source in different pharmaceutical preparations to protect against variable chronic disorders, especially obesity and diabetes. Deeper in vivo investigations, isolation, purification, and structural elucidation of the major active metabolites from cardamom are recommended.
Chiavennite revisited: a high-temperature in situ single-crystal X-ray diffraction study

Chiavennite (CaMnBeSi 5 O 13 (OH) 2 · 2H 2 O, Z = 4) is a rare Be-bearing zeolite mineral with an interrupted framework of four-connected [SiO 4 ] and three-connected [BeO 4 ] tetrahedra. A sample from the type locality in the Rhetic Alps of Italy has been re-investigated at room temperature in order to clarify the space-group ambiguity discussed in the literature and to explore the system of hydrogen bonds. In addition, the thermal stability of this zeolite was tracked by in situ single-crystal X-ray diffraction between 25°C and 425°C. In spite of the pseudo-orthorhombic cell dimension, the new data indicate that at room temperature chiavennite is truly monoclinic P 2 1 / c (β ≈ 90°) and twinned as recently shown for the new mineral ferrochiavennite. The dehydration experiments under dry conditions at different temperatures showed that chiavennite continuously released water up to at least 425°C without topological modification. The loss of more than one H 2 O molecule at 250°C decreases the Ca coordination from eight- to seven-fold. After release of the first H 2 O molecule, and strong dynamic disorder of the remaining H 2 O, chiavennite evolves into orthorhombic symmetry of space group Pbcn . The continuous monoclinic–orthorhombic transition from space group P 2 1 / c to Pbcn upon dehydration is attributed to loosening of the system of hydrogen bonds with extraframework H 2 O as donor and oxygen at the cavity walls as acceptor.
Analysis of Demotivating Factors Affecting Students’ Willingness to Speak English

The hesitation to speak English in the class was the crucial problem that occurred in semester seven students of the English Department of Timor University. This study figured out the discouraging points that influence the students' eagerness to speak English in the class, the most dispiriting factors, and the attempt that they executed to overcome their problem. The subject of the study was 30 semester seven students of the English Department of Timor University. The qualitative method was employed to analyze the data in this study. Interview and questionnaire were applied as the instruments to obtain the data. The result of the study pinpointed that there were internal and external factors that affect discouraging students in the classroom. The finding also revealed that the most demotivating factors which affected the students' willingness to communicate in English were motivation and confidence. The students also performed a few things to overcome their problems. The conclusion required the students to prompt themselves and be prompted by other people to pursue a good interaction in English. Keywords : demotivating, students, willingness
Test–retest reliability and concurrent validity of the South African Early Learning Outcomes Measure (ELOM)

Background: The Early Learning Outcomes Measure (ELOM) assesses early learning programme outcomes in children aged 50-69 months. ELOM assesses gross motor development (GMD), fine motor coordination and visual motor integration (FMC & VMI), emergent numeracy and mathematics (ENM), cognition and executive functioning (CEF), and emergent literacy and language (ELL). Content and construct validity, reliability and cross-cultural fairness have been established. Aim: To establish the test-retest reliability and concurrent validity of the ELOM. Setting: Low income preschool and Grade R children. Methods: In study one, Test-retest reliability was investigated in a convenience sample of 49 English and isiXhosa speaking preschool children (Mean age = 60.77 months, SD = 3.70) tested and retested one week apart. In study two, concurrent validity was investigated in a convenience sample of 62 children (Mean age = 75.05 months, SD = .75). ELOM performance was compared with that on the Wechsler Preschool and Primary Scale of Intelligence Fourth Edition (WPPSI-IV). Results: Test-retest reliability was established for ELOM Total score ( r = .90, p < .001). The concurrent validity of ELOM Total and the WPPSI-IV Full Scale Composite scores was established ( r = .64, p < .001). FMC & VMI, CEF, and ELL domains correlated significantly with their corresponding WPPSI-IV indices: visual spatial, fluid reasoning, processing speed, working memory, and verbal comprehension. Conclusion: The findings of both psychometric studies contribute further to the reliability and validity of the ELOM.
The influence of corporate networks on competitive advantage: the mediating effect of ambidextrous innovation

ABSTRACT Corporate networksare important channels through which external resources can be acquired, but the effect of corporate networks on competitive advantage remainsunclear. Therefore, weuse a structural equation model to examinethe relationship betweencorporate networks, ambidextrous innovation, and competitive advantage with a sample of 384 high-tech enterprises gathered from Zhongguancunin Beijing and Shenzhen High-tech Industrial Development Zone. The results show that both corporate networks and ambidextrous innovationhadpositive effects on competitive advantage; moreover, the relationship between corporate networks and competitive advantage was mediated only by ambidextrous combination. The results of the multi-group analysis also show corporate networks had a stronger effect on manufacturers’ competitive advantage andambidextrous combinationthan that of service enterprises; while the ambidextrous combination had a greater effect on competitive advantages of service enterprises. These findings suggest that enterprise executives should pay more attention toambidextrous combinationsto increase the efficiency of corporate networks,and alsosuggest that the Chinese Government should use manufacturing companies in pilot schemes for innovative reform due to their resource advantage.
Solanum aethiopicum: The Nutrient-Rich Vegetable Crop with Great Economic, Genetic Biodiversity and Pharmaceutical Potential

Solanum aethiopicum is a very important vegetable for both rural and urban communities in Africa. The crop is rich in both macro- and micronutrients compared with other vegetables and is suitable for ensuring food and nutritional security. It also possesses several medicinal properties and is currently employed in the treatment of high blood pressure, diabetes, cholera, uterine complaints as well as skin infections in humans. The crop is predominantly cultivated by traditional farmers and plays an important role in the subsistence and economy of poor farmers and consumers throughout the developing world. It also holds potential for dietary diversification, greater genetic biodiversity and sustainable production in Africa. Despite the numerous benefits the crop presents, it remains neglected and underutilized due to the world’s over-dependence on a few plant species, as well as the little attention in research and development it has received over the years. This review highlights the importance of S. aethiopicum, its role in crop diversification, reducing hidden hunger, the potential for nutritive and medicinal benefits, agricultural sustainability and future thrusts for breeding and genetic improvement of the plant species.
Parâmetros bioclimáticos e respostas da canola ao ambiente físico

Although the expansion of rapeseed crops is expressive in Southern Brazil, there are few studies on phenology and growth of plants, aiming to amplify knowledge on the elaboration of the grain yield, in response to the physical environment. This study aimed to evaluate the phenology and growth of rapeseed plants, aiming to adjust bioclimatic parameters and to evaluate crop responses to variations in the physical environment. Field experiments were conducted in 2009, 2010 and 2011, with different genotypes of rapeseeds sown from April to July, in a randomized complete blocks design. The following variables were evaluated: dates of the main phenological stages, leaf area index, dry matter of stems, leaves, flowers, seedpods and grains, grain yield and its components, and interception parameters of photosynthetically active radiation (PAR). From daily meteorological data, climate water balances and thermal requirements of the crop (degree-days) were calculated, for each year and sowing date. The thermal requirements varied during the crop cycle and sub-periods for different genotypes and sowing dates. The lower leaf area index occurred when the crop was sown in April and May, but the longevity of the leaf area index was higher than in the latest sowing dates (June and July). Most of the incident photosynthetically active radiation was intercepted by stems, flowers and seedpods, after the occurrence of the maximum leaf area index. The extinction coefficient of the crop for RFA was 0.98. The use efficiency of photosynthetically active radiation ranged from 1.9 to 2.8 g MJ, being higher in environments with low water excesses, in which the crop also expressed the highest grain yields. The accumulation of aboveground biomass of plants, throughout the crop cycle, did not limit the grain yields. The hybrid Hyola 61 had higher and more stable grain yields than the Hyola 432, for different environments. The earliest sowing dates, in April and May, promoted the greatest grain yield, compared to the latest ones, held in June and July. 1 Doctoral thesis in Agronomy, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil. (136 p.) July, 2013. vi
Effect of Antimicrobial Peptides on the Growth and Immunity of Swamp Eels

This study aimed to investigate the effect of different levels of antimicrobial peptides (AMPs) supplementation in the diet feed on growth performance, survival rate, biochemical parameters in swamp eels. Healthy fishes were randomly assigned to five groups feeding with different supplementation of AMPs (0, 200, 400, 600, or 800 mg/kg) in diets for 68 days. Results showed that relative weight gain, feed coefficient and survival rate were significantly (p<0.05) increased by supplementation of AMPs in feed. Level of protein (TP), triglyceride TG, alanine transaminase (ALT), alkaline phosphate (ALP), acid phosphate (ACP), superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT) in the serum were significantly (p<0.05) improved in all AMPs treatments, while no significant difference was found between the control and AMPs 200 mg/kg. AMPs supplementation significantly enhanced (p<0.05) the survival rate and immune protection in swamp eels after challenged with Aeromonas hydrophila compared to the control group and eels fed with AMPs 800 mg/kg had the highest survival rate and immune protection (32.50 and 85.71%, respectively). The diets containing AMPs enhanced the survival rate, immune ability, and antioxidant capacity in swamp eels, indicate that an appropriate dosage of AMPs can be used as a potential alternative to antibiotics in swamp eels.
When being oneself is socially rewarded: Social identification qualifies the effect of authentic behavior at work

Is “be yourself” always the best advice? We suggest that interpersonal consequences of behaving authentically depend on the extent to which individuals identify with the social environment where they behave authentically. Bridging the research on authenticity, social identity, and conflict, we propose that for high identifiers, authentic behavior reveals how similar they are to others, thereby reducing dyadic relationship conflict. When social identification is low, behaving authentically increases the salience of how different the individual is from others, increasing relationship conflict. In a multi-source time-lag sample of professional work teams (Study 1), we found that authentic behavior indeed reduced relationship conflict and enhanced task performance for high identifiers, but had an inverse, detrimental effect for low identifiers. In a sample of student teams (Study 2), we only found an attenuating effect of authentic behavior on relationship conflict for high identifiers, and no effect for low identifiers. These results suggest that the advice “to be yourself” applies in educational contexts involving younger adults, but has to be prescribed with care in professional work contexts. Our findings emphasize the importance of social context for the consequences of authentic behavior, and call for more research on the contextual effects of authenticity.
Atmospheric Blocking Drives Recent Albedo Change Across the Western Greenland Ice Sheet Percolation Zone

Greenland Ice Sheet (GrIS) albedo has decreased over recent decades, contributing to enhanced surface melt and mass loss. However, it remains unclear whether GrIS darkening is due to snow grain size increases, higher concentrations of light‐absorbing impurities (LAIs), or a combination. Here, we assess albedo controls in the western GrIS percolation zone using in situ albedo, LAI, and grain size measurements. We find a significant correlation between albedo and snow grain size (p < 0.01), but not with LAIs. Modeling corroborates that LAI concentrations are too low to significantly reduce albedo, but larger grain sizes could reduce albedo by at least ∼3%. Strong atmospheric blocking increases grain sizes and reduces albedo through increased surface temperature, fewer storms, and higher incoming shortwave radiation. These findings clarify the mechanisms by which anomalously strong blocking contributed to recent GrIS albedo decline and mass loss, highlighting the importance of improving projections of future blocking.
Polyimide and Imide Compound Exhibiting Bright Red Fluorescence with Very Large Stokes Shifts via Excited-State Intramolecular Proton Transfer

A novel polyimide (PI) emitting a prominent red fluorescence was prepared based on 3,6-dihydroxypyromellitic dianhydride (P2HDA) and 4,4′-diaminocyclohexylmethane (DCHM). In order to investigate the fluorescence properties of the PI, an imide model compound, N,N′-dicyclohexyl-3,6-dihydroxypyromellitimide (P2H-Ch), corresponding to one repeating unit of the PI, was also synthesized. The UV–vis absorption and fluorescence spectra of P2H-Ch in CHCl3 and the solid PI film demonstrated intense red fluorescence at around 640 nm with a very large Stokes shift (ν) of 7655 and 8994 cm–1, respectively, via the excited-state intramolecular proton transfer (ESIPT). Moreover, the corresponding monoanion and dianion species were formed in basic conditions with an organic base (DBU) and basic salt (NaOH), which were characterized by highly visible halochromism. The introduction of −OH groups into the pyromellitic moiety of imide compounds or PIs at their para positions led to the long-wavelength fluorescent emission as .
Hubungan Stres Dengan Motivasi Belajar Pada Mahasiswa Fakultas Kedokteran Universitas Malahayati Angkatan 2018

ABSTRACT: THE CORRELATION OF STRESS WITH LEARNING MOTIVATION ON STUDENTS IN THE MEDICAL FACULTY OF MALAHAYATI UNIVERSITY CLASS OF 2018 Background: Medical students must have high learning motivation to participate in lecture activities properly and are required to be able to learn a lot of material in a short time to match expectations. There are several factors that can affect learning motivation, namely intrinsic and extrinsic factors, while extrinsic factors can be related to learning motivation . Objective: This study aims to determine the relationship between stress and learning motivation in students of the Faculty of Medicine, Malahayati University class of 2018. Method: This research is an analytic survey with a cross-sectional approach with a total sampling type of sampling technique. The subjects in this study were all 119 students of the Faculty of Medicine, Malahayati University Bandar Lampung, in 2018. Retrieval of data using a questionnaire. The data obtained were analyzed statistically with the chi-square test. Results : Most of the subjects of this study were female, 73.9%, aged 20 years 35,%, had a high motivation level of 45.4%, a moderate stress level of 45.5%. Conclusion: There is a significant relationship between stress and learning motivation . Keyword: Stress, Learning Motivation INTISARI: HUBUNGAN STRES DENGAN MOTIVASI BELAJAR PADA MAHASISWA FAKULTAS KEDOKTERAN UNIVERSITAS MALAHAYATI ANGKATAN TAHUN 2018 Latar Belakang: Mahasiswa kedokteran harus memiliki motivasi belajar yang tinggi untuk mengikuti kegiatan perkuliahan dengan baik dan dituntut untuk dapat mempelajari materi yang banyak dalam waktu singkat agar sesuai dengan harapan. Terdapat beberapa faktor yang dapat mempengaruhi motivasi belajar, adalah faktor intrinsik dan ekstrinsik sedangakn faktor ektrinsik yang dapat berhubunagn dengan motivasi belajar . Tujuan: Penelitian ini bertujuan untuk mengetahui hubungan antara stress dengan motivasi belajar pada mahasiswa Fakultas Kedokteran Universitas Malahayati angkatan 2018. Metode: Penelitian ini bersifat survei analitik dengan pendekatan cross sectional dengan teknik pengambilan sampel jenis total sampling . Subjek dalam penelitian ini adalah seluruh mahasiswa Fakultas Kedokteran Universitas Malahayati Bandar Lampung Angkatan tahun 2018 sebanyak 119 responden. Pengambilan data dengan menggunakan kuesioner. Data yang diperoleh dianalisis secara statistik dengan uji chi-square . Hasil: Sebagian besar subjek penelitian ini berjenis kelamin perempuan 73,9%, berusia 20 tahun 35,%, memiliki tingkat motivasi tinggi 45,4%, tingkat stress sedang 45,5%. Kesimpulan: Terdapat hubungan yang signifikan antara hubungan stress dengan motivasi belajar Kata Kunci : Stress, Motivasi Belajar
Overlay Journals: Overlooked or Emergent?

Overlay journals are not a new concept but have been experiencing a recent resurgence because of the increase in the number of preprint servers and the increase in the number of preprints on coronavirus disease 2019 (COVID-19) related topics. This study examines overlay journals at various stages of maturity for unique characteristics, including whether the authors submitted their article to the journal and whether the reviews of the article are published by the overlay journal. Whether they are considered overlooked or emergent, overlay journals are becoming an important contribution to scholarly communication.
Stability and Sensitivity Analysis of Dengue-Malaria Co-Infection Model in Endemic Stage

In this study, a deterministic co-infection model of dengue virus and malaria fever is proposed. The disease free equilibrium point (DFEP) and the Basic Reproduction Number is derived using the next generation matrix method. Local and global stability of DFEP is analyzed. The result show that the DFEP is locally stable if R0dm < 1 but may not be asymptotically stable. The value of R0dm calculated is 19.70 greater than unity; this implies that dengue virus and malaria fever are endemic in the region. To identify the dominant parameter for the spread and control of the diseases and their co-infection, sensitivity analysis is investigated. From the numerical simulation, increase in the rate of recovery for co-infected individual contributes greatly in reducing dengue and malaria infections in the region. Decreasing either dengue or malaria contact rate also play a significant role in controlling the co-infection of dengue and malaria in the population. Therefore, the center for disease control and policy makers are expected to set out preventive measures in reducing the spread of both diseases and increase the approach of recovery for the co-infected individuals.
Effect of Curcuma longa L. extract as a natural antioxidant in soybean oil

RESUMO: O trabalho teve como objetivo avaliar o potencial antioxidante do extrato de Curcuma longa L. na estabilidade oxidativa do oleo de soja. Para isso, os tratamentos Controle (oleo de soja), TBHQ100 (oleo de soja com 100 mg de TBHQ/kg), Extrato100 (oleo de soja com 100 mg de β-caroteno de extrato/kg) e TBHQ50+Extrato50 (oleo de soja com 50 mg de TBHQ/kg de oleo de soja + 50 mg de β-caroteno de extrato/kg) foram submetidos ao teste acelerado em estufa (60 oC/20 dias). O extrato apresentou 51,17% de atividade antioxidante pelo metodo DPPH• e 98,74 μM Trolox.g-1 pelo FRAP, alem de 457,9 μg β-caroteno.g-1. Embora, inicialmente, todos os tratamentos tenham apresentado baixos valores de indice de peroxidos (0,55-0,65 meq.kg-1), em 20 dias, o Controle mostrou maior degradacao oxidativa, 46,15 meq.kg-1. O TBHQ100 e TBHQ50+Extrato50 apresentaram os menores valores de p-anisidina. Apesar do TBHQ100 ter apresentado maior estabilidade oxidativa (8,25 h), o TBHQ50+Extrato50 (6,41 h) mostrou maior estabilidade que o Controle (3,86 h). Todos os tratamentos apresentaram elevadas concentracoes do isomero γ-tocoferol. O antioxidante sintetico provou ser mais eficiente na prevencao da reacao de oxidacao do que o antioxidante natural, visto que possui elevado grau de pureza. Entretanto, o TBHQ50+Extrato50 apresentou resultados satisfatorios, sendo o segundo melhor tratamento capaz de reduzir as alteracoes do oleo de soja, possibilitando a aplicacao para a reducao da concentracao do antioxidante sintetico. PALAVRAS-CHAVE: Atividade antioxidante, Carotenoides, Tocoferois.