Miracle-dz/UniFAR-FTUs huggingface dataset:
THE DEVELOPMENT OF SCIENCE, TECHNOLOGY, ENGINEERING, AND MATHEMATICS (STEM)-BASED MATHEMATICS TEACHING MATERIALS TO INCREASE MATHEMATICAL CONNECTION ABILITY

Abstract: This research is development research that aims to develop mathematics teaching materials related to Science, Technology, Engineering, and Mathematics (STEM). This research uses the stages of Research and Development, including problem and data collection, product design, design validation, product test (practicality test), trial test (pretest and posttest), and final product. The results show that teaching materials are valid, practical, and effective to increase mathematical connection ability. The results of the test indicate that teaching materials are valid to use in learning with a percentage of 94.42%. The practicality test results show that teaching materials are easily practised by students, with a percentage of 87.47%. The analysis of the results of the pretest and posttest showed that there was an effective increase in the mathematical connection ability with the n-gain test results of 0.628 on the medium criteria. Thus, mathematics teaching materials in this research can be used in learning, and the copyright was submitted by the electronic intellectual wealth General Directory. Abstract: Penelitian ini merupakan penelitian pengembangan yang bertujuan untuk mengembangkan bahan ajar matematika yang berhubungan dengan Science, Technology, Engineering, and Mathematics (STEM). Penelitian ini menggunakan tahapan penelitian dan pengembangan, yaitu masalah dan pengumpulan data, desain produk, validasi desain, uji produk (tes kepraktisan), uji coba (pretest dan posttest), dan produk akhir. Hasil penelitian menunjukkan bahwa bahan ajar tersebut valid, praktis, dan efektif untuk meningkatkan kemampuan koneksi matematis. Hasil tes menunjukkan bahwa bahan ajar valid untuk digunakan dalam pembelajaran dengan persentase 94,42%. Hasil tes kepraktisan menunjukkan bahwa bahan ajar mudah digunakan oleh siswa, dengan persentase 87,47%. Analisis hasil pretest dan posttest menunjukkan bahwa ada peningkatan yang efektif dalam kemampuan koneksi matematis dengan hasil tes n-gain dari 0,628 pada kriteria medium. Dengan demikian, materi pengajaran matematika dalam penelitian ini dapat digunakan dalam pembelajaran, dan hak cipta disampaikan oleh kekayaan intelektual elektronik direktori umum.
Responses of grain yield and nutrient accumulation to water and foliar fertilizer management in upland and wetland rice varieties

This study evaluated the effects of water and fertilizer managements on grain yield and nutrient accumulation in upland and wetland rice varieties. The two rice varieties representing upland (KH CMU) and wetland (CNT1) ecotypes were grown in different water conditions and fertilizer managements. The interaction between variety and water condition had significantly affected on grain yield and straw dry weight. The water condition and fertilizer management were also affected on grain nutrient concentrations differently between the two varieties. The difference in responses to grain nutrients between the two rice varieties representing their original ecotypes of wetland and lowland is the key factor with respect to the proper management of water and fertilizers in order to maximize in both grain yield and nutrition. This knowledge is useful for the proper management of water and fertilizers for improving grain yield and nutrient accumulation. However, increasing the number of rice varieties in each upland and wetland ecotypes is needed to confirm the responses to water and fertilizer management in the future study.
Mātauranga Māori: shaping marine and freshwater futures

Mātauranga Māori: shaping marine and freshwater futures Joanne Clapcott (Ngāti Porou) , Jamie Ataria (Rongomaiwahine, Ngāti Kahungunu, Ngati Raukawa), Chris Hepburn, Dan Hikuroa (Ngāti Maniapoto, Tainui, Te Arawa) , Anne-Marie Jackson (Ngāti Whātua, Ngāti Kahu o Whangaroa, Ngāpuhi, Ngāti Wai), Rauru Kirikiri (Te Whānau a Āpanui) and Erica Williams (Ngāti Whakaue, Ngāti Pikiao, Te Whanau a Maruhaeremuri) Cawthron Institute, Nelson, New Zealand; Department of Marine Science, University of Otago, Dunedin, New Zealand; Māori Studies, University of Auckland, Auckland, New Zealand; Te Koronga, University of Otago, Dunedin, New Zealand; RK Associates Limited, Wellington, New Zealand; National Institute of Water and Atmospheric Research Ltd, Wellington, New Zealand
Addressing service failure and initiating service recovery in online platforms: literature review and research agenda

ABSTRACT Academic research has given considerable attention to service failure and subsequent recovery efforts in an online environment. Nevertheless, existing research examining the effectiveness of recovery interventions in this context is relatively inconclusive, and the results reported are found to be conflicting in nature. This poses a threat to domain expansion and managerial understanding. Hence, we systematically analyse the extant literature on online service recovery, and categorises the studies in this domain into seven themes following a concept-centric approach and provided a synthesised framework. This review consolidated and synthesized the prior literary works based on the methodologies executed, theories used, type of online service recovery, the role of platform of recovery, recovery perspective, speed, source, and magnitude of recovery, and the recovery outcomes. In this review, we present many compelling research gaps, follow-up research questions, and critical insights into managerial practice for the efficacious execution of service recovery intervention in online platforms.
Acute ischemic stroke in a patient with gastrointestinal complaints of COVID-19 infection

The most important pandemic in the last century triggered by SARS-CoV-2 infection is ongoing, and long-term implications are still unknown. We report the case of a 65-year old man, who presented with sudden onset of right-sided limb weakness, facial asymmetry, and dysarthria, accompanied by vomiting and headache. The initial neurological exam suggested acute stroke, although the cerebral CT-scan was not relevant neither recent ischemic, nor haemorrhage findings. According to the therapeutic protocol, intravenous thrombolytic therapy was timely administered, with a neurofluctuating course. The infusion was premature interrupted due to the sudden hematemesis, following by concurrent diarrhoea, abdominal cramps and recurrent vomiting. The new cerebral imaging confirmed the acute ischemic stroke in the vertebrobasilar territory and the abdominal CT-exam displayed an inflammatory aspect inflammation surrounding the right kidney and the proxi-mal colon, minimal right pleural effusion and hypo-ventilated areas in the pulmonary bases. The laboratory work-up revealed mild leukocytosis with neutrophilia, increased levels of D-dimers, altered renal function. Considering the epidemic COVID-19, a RT-PCR test for SARS-CoV-2 have been request and, surprisingly, it was positive. Previous unknown paroxysmal atrial fibrillation was found at admission by electrocardiography, suggesting the cardioembolic nature of the ischemic stroke, while a favouring role of infection is possible. The subsequent evolution was positive, following by the secondary prevention with oral anticoagulation, along with hypotensive and statin medication. Apart from the respiratory affection, COVID-19 infection can be present in patients with other major medical emergencies, including acute stroke, with no apparent sign of infection. Additional signs of gastrointestinal affection, along with attentive evaluation of abdominal CT-scan represent important hints for concomitant SARS-CoV-2 infection. © 2020, Amaltea Medical Publishing House. All rights reserved.
Genetic analysis of production traits in turbot (Scophthalmus maximus) using random regression models based on molecular relatedness

Funding information Bundesanstalt für Landwirtschaft und Ernährung, Grant/Award Number: 2817301810; German Federal Office for Agriculture and Food; H. Wilhelm Schaumann Stiftung Abstract Reliable estimates of genetic parameters for growth traits as a trajectory of age are needed to optimize existing turbot breeding programmes. To evaluate the potential of early selection strategies, the use of biometric body measurements, length (L), width (W) and area (A), at early ages as alternative indicators for the selection trait at harvest was explored. Random regression model (RRM) based on molecular relatedness (MR) was used to analyse the trajectory of genetic parameters for growth traits in turbot from 162 to 756 days posthatch (dph). Heritability estimates for body weight (BW) ranged from 0.34 to 0.54. Heritability estimates for W, A and L were also moderate to high ranging from 0.18 to 0.43. Estimates for L and W declined with age, while those for A increased towards harvest age. Genetic (rG) and phenotypic (rP) correlations between BW and the three morphometric traits L, A and W were estimated using simple bivariate animal models at young (AC1), medium (AC2) and old (AC3) age classes. Correlations between BW and morphometric body traits were high, ranging from 0.7 to 0.9 in all three age groups. Genetic correlations between traits were highest (>0.9) in AC3. To explore the potential for early selection, genetic correlations were derived from the RRM between all days of measurement for all traits separately. From dph 300 onwards, intratrait estimates of rG were moderate to high (above 0.7 for dph 410 and higher ages for traits BW, L and A). Results showed that genetic selection for BW, L and A is promising and that A and L could be successfully used as alternative indicator traits if measurements of BW are not available. Large BW and A at harvest could be achieved as a correlated response to early selection for these traits at around 500 dph.
Resilience to shocks and food insecurity: Determinants, and the impact of smallholder jatropha curcas cultivation in Southern Malawi

This paper studied household resilience to food insecurity, its determinants, and the impact of shocks on welfare in Southern Malawi. The resilience concept is evolving. A crucial issue in scholarly and policy space is how it is measured. This paper proposed an aggregated index measure and empirically tested it to study determinants as well as the impact of jatropha cultivation on resilience to food insecurity. The study used a unique cross-sectional dataset of 298 smallholders which included 100 jatropha cultivating farmers, collected using purposive and random sampling strategies. The resilience index was a good predictor of household welfare. Empirical evidence showed that shocks, various capital assets and institutional factors were significant determinants of resilience to food security. Jatropha cultivating farmers had less resilience capacity to food insecurity than their counterparts. The study did not find any evidence to support the notion that jatropha cultivation significantly influenced resilience to food insecurity.
Mitotic phosphorylation by Nek6 and Nek7 reduces microtubule affinity of EML4 to alter spindle dynamics and promote chromosome congression

EML4 is a microtubule-associated protein that promotes microtubule stability. We show here that EML4 is distributed as punctate foci along the microtubule lattice in interphase but exhibits reduced association with spindle microtubules in mitosis. Microtubule sedimentation and cryo-electron microscopy and 3D reconstruction reveal that EML4 binds via its basic N-terminal domain to the acidic C-terminal tails of α- and β-tubulin on the microtubule surface. The mitotic kinases Nek6 and Nek7 can phosphorylate EML4 N-terminal domain at S144 and S146 in vitro, and depletion of these kinases leads to increased EML4 binding to microtubules in mitosis. An S144A-S146A double mutant not only binds inappropriately to mitotic microtubules but also interferes with chromosome congression. Meanwhile, constitutive activation of Nek6 or Nek7 reduces EML4 association with interphase microtubules. Together, these data support a model in which Nek6 and Nek7-dependent phosphorylation promotes dissociation of EML4 from microtubules in mitosis thereby altering microtubule dynamics to enable chromosome congression.
A Survey of Junior and Senior High School Teachers’ Perceptions and Perceived Skills of ICT Integration in Teaching and Learning of Mathematics

Aim: The study sought to investigate the mathematics teachers’ perceptions and perceived skills of ICT in the teaching and learning of mathematics in some selected junior and senior high schools in Ghana. Study Design: This study used descriptive cross-sectional survey research design. Methodology: The main instrument used for the study was questionnaire. The sample size for the study comprised both JHS and SHS mathematics teachers. In this study, cluster sampling and simple random techniques were used to select one hundred and twenty (120) teachers in junior and senior high schools in the keta municipality of the Volta region of which 76 were males and 29 were females. Out of the one hundred and twenty (120) teachers selected, one hundred and five (105) teachers presented back the questionnaire for analysis, 42 were J.H. S teachers and 63 were S.H. S teachers. Results: The respondents agreed that using ICT in teaching and learning of mathematics is good, indicating positive perception among teachers. Again, the respondents showed that they possess some level of skills in using ICT in teaching and learning of mathematics. Conclusions: Most mathematics teachers in the J.H. S and S.H. S have positive perception and skills to support the view that the integration of ICT in the teaching and learning of mathematics is useful and can improve teaching and learning in the mathematics classroom.
Effects of two equine digestive aid supplements on hindgut health1

Abstract Gastrointestinal disease is the number one killer of horses. Little is known about the maintenance of microbes in the equine hindgut and how to distinguish a healthy gut in a live horse. Utilization of internal and external digestibility markers and starch fermentation has been extensively studied in ruminants and is the basis for research conducted on horses. The aims of this study were to investigate the effects of two equine feed digestive aid supplements on hindgut health (HGH) as reflected in fecal pH and digestibility and to compare and validate DM digestibility measurements through the use of internal and external markers such as chromium oxide (CR), lignin (Lig), indigestible ADF (iADF), indigestible NDF (iNDF), and indigestible lignin (iLig). Nine mature Quarter horses (six geldings, three mares) were used in a crossover design, three feeding periods of 17 d (51 d total), using three treatments: control, no feed additive (CON), Smartpak (SP; Plymouth, MA), or Platinum Performance (PP; Buellton, CA). Both SP and PP contained a strain of Lactobacillus, whereas SP further supplied mannanoligosaccharides (MOS) and fructooligosaccharides (FOS) and PP supplied Saccharomyces boulardii. Within the 17-d period, horses were offered orchard grass hay and sweet cob grain and the assigned treatment daily and four CR cookies to deliver 8 g/d of CR for the last 7 d of each period. Total feces were collected from 15 to 17 d. Feed and fecal samples were dried, ground, and sent to ANALAB (Fulton, IL) for nutrient analysis. Duplicate samples of feed and feces were placed in ruminally cannulated cows for in situ determination of iADF, iNDF, and iLig to estimate digestibility. Estimated CR fecal output, CR DMI, and DM digestibilities were evaluated using the root mean square prediction error percentage of the observed mean (RMSPE), concordance correlation coefficient (CCC), and Nash–Sutcliffe efficiency methods. Marker predictive ability tests showed iADF to have the least amount of bias with the smallest RMSPE (4%), largest CCC (0.43), and the largest amount of random bias (error of dispersion = 0.45). Supplementation of PP decreased CR DM digestibility (P < 0.02). Smartpak increased fecal pH (P < 0.09), but PP had no effect on fecal pH. Therefore, SP had a beneficial effect on HGH that is believed to be due to MOS and FOS.
Crystal structure of the N112A mutant of the light-driven sodium pump KR2 in the pentameric form, pH 8.0

The light-driven sodium pump KR2, found in 2013 in the marine bacteria Krokinobacter eikastus, serves as a model protein for the studies of the sodium-pumping microbial rhodopsins (NaRs). KR2 possesses a unique NDQ (N112, D116, and Q123) set of the amino acid residues in the functionally relevant positions, named the NDQ motif. The N112 was shown to determine the Na+/H+ selectivity and pumping efficiency of the protein. Thus, N112A mutation converts KR2 into an outward proton pump. However, no structural data on the functional conversions of the light-driven sodium pumps are available at the moment. Here we present the crystal structure of the N112A mutant of KR2 in the ground state at the resolution of 2.4 Å. The structure revealed a minor deflection in the central part of the helix C and a double conformation of the L74 residue in the mutant. The organization of the retinal Schiff base and neighboring water molecules is preserved in the ground state of KR2-N112A. The presented data provide structural insights into the effects of the alterations of the characteristic NDQ motif of NaRs. Our findings also demonstrate that for the rational design of the KR2 variants with modified ion selectivity for optogenetic applications, the structures of the intermediate states of both the protein and its functional variants are required.
The impact of music training on inhibition control, phonological processing, and motor skills in kindergarteners: a randomized control trial

ABSTRACT This study explores how music training impacts the development of inhibition control, phonological processing, and gross and fine motor skills in preschoolers. In a randomized controlled trial, 160 kindergarteners in a music programme, a motor programme, or a control group were examined. Children in the two experimental conditions took part in 19 weekly 40-minute sessions. At pretest and post-test, inhibition control and phonological processing were measured with two subtests from the NEPSY-II. Gross and fine motricity were assessed with the BOT-2 Short Form. Post-test results showed that children in the music condition improved significantly on automatic response inhibition. Phonological processing skills did not differ significantly between the two experimental conditions, but the music condition produced significant improvements over control. These findings corroborate previous evidence that music training contributes substantially to develop executive function and phonological awareness in preschoolers.
Respiratory symptoms and associated factors among women exposed to biomass fuel smoke in Sri Lanka: cross sectional study

Biomass fuel (BMF) is a domestic source of cooking energy. Biological materials such as wood, charcoal, crop residues and animal dung are collectively called as ‘biomass fuel’. Nearly 3 billion people worldwide use BMF for cooking. Most people using BMF live in low and middle income countries. Use of BMF in Sri Lanka was 78% in 2012. BMF smoke is a known leading cause of indoor air pollution. World Health Organization estimated that indoor air pollution is responsible for about 3.8 billion annual deaths. Some of the main respiratory diseases contributing to this mortality are, pneumonia 27%, chronic obstructive pulmonary disease 20% and lung cancer 8%. Thus, indoor air pollution caused by BMF smoke is a substantial contributor for the global disease burden. Many studies have shown an association ABSTRACT
Volume of cells on trays influences hydroponic lettuce production

ABSTRACT Lettuce seedlings used on hydroponic cultivation (NFT) are usually produced in trays with small volume, requiring two transplants: from tray to nursery and then to the definitive place. The aim of this study was to verify lettuce performance under NFT system, using seedlings produced in trays with several cell volumes (50, 40, 35, 31, 30, 29, 27, 20 and 10 cm³ cell-1). The tray volumes are considered treatments. The experimental design was completely randomized blocks, with four replicates. Seedlings were transplanted directly to the definitive profile, except those ones produced in 10 cm³ cell-1. Two harvests were performed, at 22 and 29 days after transplant (DAT). We evaluated number of senescent leaves, total number of leaves, shoot fresh mass, root fresh mass, shoot dry mass, stem length and productivity. The best performance was obtained using seedlings produced in trays with higher volume per cell. The nursery phase was not necessary and it was possible to obtain reduction from two to one transplant, corresponding to trays of 20 to 50 cm³ cell-1. Seedlings produced in trays with 40 and 50 cm³ cell-1 made the early harvest possible, at 22 DAT of cultivation under hydroponic NFT system.
Relationship between Indoor Daytime Light Exposure and Circadian Phase Response under Laboratory Free-Living Conditions

ABSTRACT In this study, we measured the physical quantity of light (irradiance) in several wavelength bands at eye and wrist level for 8 h under laboratory conditions simulating daily life. Twenty-two healthy male participants (mean age ± SD, 29.95 ± 8.13 years) were able to move freely, and eye-level data were compared with irradiance data obtained at the wrist. We estimated circadian phase shift from the differences of DLMO before and after light exposure while considering natural drift. In addition, we investigated the influence of activities and body positions on light exposure and validated the effect of irradiance on circadian phase response. We found lower average irradiance at eye level compared with wrist level in all three RGB bands. The blue light irradiance measured at eye level was significantly correlated with circadian phase shift, possibly because the irradiance at eye level more accurately reflected its effect on the biological clock than did the measurement at the wrist. It follows that quantitative measurements of wavelength spectra at eye level are necessary to assess the effect of ambient light on the human biological clock.
Microwave-Assisted Catalytic Fast Pyrolysis of Biomass for Hydrocarbon Production with Physically Mixed MCM-41 and ZSM-5

To delve into the law of hydrocarbon production in microwave-assisted catalytic fast pyrolysis (MACFP) of corn straw, physical mixed Mesoporous Crystalline Material-41 (MCM-41) and Zeolite Socony Mobile-5 (ZSM-5) catalyst prototypes were exploited in this study. Besides, the effects exerted by temperature of reaction and MCM-41/ZSM-5 mass ratio were explored. As revealed from the results, carbon outputs of hydrocarbons rose initially as the temperature of MACFP rose and reached the maximal data at 550 °C; subsequently, it declined as reaction temperature rose. Moreover, the MCM-41/ZSM-5 mass ratio of 1:2 was second-to-none for hydrocarbon formation in the course of biomass MACFP. It was reported that adding MCM-41 can hinder coke formation on ZSM-5. Furthermore, MCM-41/ZSM-5 mixture exhibited more significant catalytic activity than ZSM-5/MCM-41 composite, demonstrating that hydrocarbon producing process can be stimulated by a simple physical MCM-41 and ZSM-5 catalysts mixture instead of synthesizing complex hierarchically-structured ZSM-5/MCM-41 composite.