Miracle-dz/UniFAR-FTUs huggingface dataset:
Pengembangan Bahan Ajar Berbasis Etnomatematika Pada Materi Transformasi Geometri

Penelitian ini bertujuan untuk memperoleh suatu produk berupa bahan ajar matematika berbasis etnomatematika pada materi transformasi geometri. Penelitian ini merupakan penelitian pengembangan yang menggunakan desain ADDIE ( Analysis, Design, Develop, Implementasion, and Ecaluate). Uji coba di lapangan bahan ajar yang telah disusun dilakukan dengan diserahkan kepada ahli media dengan menyertakan lembar penilaian validator dalam penelitian ini adalah guru pengampu mata pelajaran matematika SMP Muhammadiyah Kawali. Pengumpulan data menggunakan lembar validasi untuk menentukan validasi bahan ajar, kisi-kisi, dan instrumen untuk menentukan keefektifan bahan ajar setelah pembelajaran yang kemudian dianalisis kevalidan bahan ajar yang dikembangan diperoleh dari data lembar validasi yang diisi oleh para ahli. Hasil penelitian ini adalah pengembangan bahan ajar transformasi geometri yang dikembangkan valid, praktis, dan efektif digunakan. Kata kunci: pengembangan, etnomatematika, transformasi geometri
USE OF MEDETOMIDINE FOR CHEMICAL RESTRAINT OF CAPTIVE GRAY WOLVES (CANIS LUPUS)

Five intact male hand-raised adult (>2 yr) gray wolves (Canis lupus) were given hand held i.m. injections of 50 p-g/kg medetomidine (group 1) or 50 |xg/kg medetomidine plus 27 fxg/kg atropine (group 2). Heart rate, percent pulse oximetry-derived oxygen saturation, respiratory rate, and body temperature were recorded every 5 min for 30 min. After 30 min, wolves were given either 250 |xg/kg atipamezole or 0.2 mg/kg yohimbine i.v. Times to sternal recumbency were 5.8 ? 1.9 min for group 1 and 4.4 ? 0.8 min for group 2 (P = 0.50). Induction times were 13.2 ? 2.8 min for group 1 and 11.2 ? 1.7 min for group 2 (P = 0.56). There were no differences between the two groups in oxygen saturation (P = 0.21), respiratory rate (P ? 0.67), or rectal temperature (P = 0.09). Group 2 (with atropine) had significantly increased heart rate (P - 0.0001). Wolves given atipamezole showed complete recovery in 2.8 ? 0.8 min; yohimbine appeared to have little effect on medetomidine at the dosage used. Based on the results of this study, 50 fxg/kg medetom idine provided effective chemical restraint and caused some degree of cardiopulmonary impairment based on oximetry-derived oxygen saturation values. Atropine increased heart rate but did not improve oxygen saturation. Atipamezole effectively antagonized the medetomidine sedation, where as yohimbine did not. Medetomidine provided better and safer sedation than xylazine has been reported to provide.
A Preliminary Study of BEST in CLASS–Elementary on Teacher Self-Efficacy, Burnout, and Attributions

Student problem behaviors in early elementary school have been associated with increased teacher burnout, negative emotions, and stress, along with negative student outcomes, including increased risk of emotional and behavioral disorders (EBDs). This study examined the impact of BEST in CLASS–Elementary (BEST in CLASS-E), a teacher-delivered Tier 2 intervention, on teacher self-efficacy, burnout, and attributions for student behavior. Participants in the study were 45 kindergarten to Grade 3 students, identified as at risk of EBD, and their 26 teachers from three elementary schools located in an urban school district. Although changes in teacher self-efficacy and burnout were nonsignificant, results suggest that teachers in the BEST in CLASS-E condition reported less emotional exhaustion than teachers in the control condition and that BEST in CLASS-E had a slight but nonsignificant effect (p = .06) on teachers’ causal attributions of problem behavior. This study highlights the promise of BEST in CLASS-E as a Tier-2 intervention delivered by teachers in impacting elementary teacher outcomes. Implications and limitations of the study are discussed.
Cultural Reconstruction and Organization Environment for Employee Performance

This study examined cultural and organizational motivations for success through organizational engagement and work motivation in the Department of Public Works in the province of Maluku, Indonesia. The approach used for this study was quantitative, using a survey. The Department of Public Works of the Province of Maluku was the research site with a sample of 149 participants. The analysis method used in this study was Generalized Structured Component Analysis (GSCA). The main findings were 1) organizational culture has a direct effect on organizational engagement and a direct contribution to employee performance, 2) organizational culture impacts company performance, 3) organizational environment has a direct effect on employee motivation and employee performance, and 4) organizational environment supports company performance. The results indicate that the organizational environment can be increased by formulating regulatory policies and establishing rules and strategies for employees to carry out their duties. Motivation for work can be boosted by giving awards that match the results of work. In building an organizational culture, attention needs to be paid to the values contained in organizational culture, consisting of corporate empowerment, team management, clarity of vision, direction, and corporate goals.
Maternal, Fetal, and Child Outcomes of Mental Health Treatments in Women: A Meta‐Analysis of Pharmacotherapy

Objective The authors systematically reviewed evidence on pharmacotherapy for perinatal mental health disorders. Methods The authors searched for studies of pregnant, postpartum, or reproductive‐age women with mental health disorders treated with pharmacotherapy in MEDLINE, EMBASE, PsycINFO, the Cochrane Library, and trial registries from database inception through June 5, 2020 and surveilled literature through March 2, 2021. Outcomes included symptoms; functional capacity; quality of life; suicidal events; death; and maternal, fetal, infant, or child adverse events. Results 164 studies were included. Regarding benefits, brexanolone for third‐trimester or postpartum depression onset may be associated with improved depressive symptoms at 30 days when compared with placebo. Sertraline for postpartum depression may be associated with improved response, remission, and depressive symptoms when compared with placebo. Discontinuing mood stabilizers during pregnancy may be associated with increased recurrence of mood episodes for bipolar disorder. Regarding adverse events, most studies were observational and unable to fully account for confounding. Evidence on congenital and cardiac anomalies for treatment compared with no treatment was inconclusive. Brexanolone for depression onset in the third trimester or the postpartum period may be associated with risk of sedation or somnolence, leading to dose interruption or reduction when compared with placebo. Conclusions Evidence from few studies supports the use of pharmacotherapy for perinatal mental health disorders. Although many studies report on adverse events, they could not rule out underlying disease severity as the cause of the association between exposures and adverse events. Patients and clinicians need to make informed, collaborative decisions on treatment choices.
Control the Hydraulic Stabilizer Bar to Improve the Stability of the Vehicle When Steering

The phenomenon of the lateral instability of the vehicle when the steering is one of the extremely serious and dangerous problems. To improve safety and stability, vehicles often are equipped with stabilizer bars at the front and rear axles. However, the passive stabilizer bar cannot guarantee safe and stable performance in dangerous cases. Therefore, the active stabilizer bar is used to replace the passive stabilizer bar. The active stabilizer can automatically generate an anti-roll moment depending on the condition of the vehicle at each time. In dangerous cases, the anti-roll moment of the active stabilizer bar is much greater than the passive stabilizer bar. This research focused on the problem of establishing a spatial dynamics model in combination with a nonlinear double-track dynamic model to describe the state of oscillation of the vehicle when steering. The PID control method is used to control the hydraulic stabilizer bar. The results of the research indicated that when the vehicle was equipped with the hydraulic stabilizer bar, the values of the roll angle, the displacement of the un-sprung mass, the vertical force at the wheel, . were significantly reduced.
Characterization of cyclopenta[cd]pyrene-DNA adducts in vitro and in mice in vivo

Exposure to chemical carcinogens is believed to be an important etiological factor in human cancer. Carcinogen-DNA adducts are considered to represent the initiating events leading to cancer. This dissertation was undertaken to determine the DNA adduct formation by cyclopenta[cd]pyrene (CPP), a ubiquitous environmental carcinogen, in vitro and in mice. Calf thymus DNA was reacted in vitro with CPP 3,4-epoxide (CPPE) or with its metabolites, 3,4-dihydroCPP-3,4-diol (CPP-3,4-diol) and 4-hydroxy-3,4dihydroCPP (4-OH-DCPP), activated with sulfotransferase. The results demonstrated that the two major CPPE-derived adducts were formed by guanine, while minor adducts were formed by adenine and cytosine. Specifically, the major dG adduct formed in DNA was identified as cis-3-(deoxyguanosin-N2-yl)-4-hydroxy-3,4dihydroCPP (3-dG-4-OH-DCPP) and the minor dG adduct seems likely to be its trans isomer. Adenosine adducts were presumably formed by aralkylation of the N6 position since they co-chromatographed with regio-specifically synthesized standards. Sulfotransferase activation of trans-CPP-3,4-diol yielded two adducts that were identical to the products resulting from the reaction of CPPE with DNA, while cis-CPP-3,4-diol gave very low covalent binding. Adducts formed by sulfotransferase activation of 4-OH-DCPP were identical to the diastereomeric products generated from the reaction of synthetic 4-NaO3 S-O-DCPP with dG. These results indicate that guanine is predominantly the site of CPP adduct formation in DNA, regardless of the identity of the reactive metabolite, and that the 4-hydroxy-3dG adducts can arise by reaction of DNA with either CPPE or sulfotransferaseactivated trans-CPP-3,4-diol. In CPP-treated CD-1 mice, four and six peaks were detected in the DNA digests of liver and lung samples, respectively, by HPLC. Cryogenic fluorescence spectroscopic analysis indicated that all peaks were derived from CPPE. These peaks were also identified by their chromatographic similarity to synthetic CPP metabolites and adduct standards formed in vitro. The results suggest that adducts detected in liver DNA digests are trans-3-dG-4-OH-DCPP, two diastereomers of cis3-dG-4-OH-DCPP, and trans-3-deoxyadenosinyl-4-hydroxy-3,4-dihydroCPP (3-dA4-OH-DCPP). Adducts detected in lung samples are probably trans-3-dG-4-OHDCPP, two diastereomers of cis-3-dG-4-OH-DCPP, cis-CPP-3,4-diol, cis-3-dA-4OH-DCPP, and 4-OH-DCPP. The detection of CPP-3,4-diol and 4-OH-DCPP suggests that the formation of unstable adducts by CPP. Furthermore, both CPPE and sulfotransferase-activated trans-CPP-3,4-diol could be the major ultimate carcinogenic metabolites of CPP, while sulfotransferase-activated 4-OH-DCPP could be a minor one. Thesis Supervisor: Dr. Steven R. Tannenbaum Professor of Chemistry and Toxicology
Ferroelastic Twinning in Minerals: A Source of Trace Elements, Conductivity, and Unexpected Piezoelectricity

Ferroelastic twinning in minerals is a very common phenomenon. The twin laws follow simple symmetry rules and they are observed in minerals, like feldspar, palmierite, leucite, perovskite, and so forth. The major discovery over the last two decades was that the thin areas between the twins yield characteristic physical and chemical properties, but not the twins themselves. Research greatly focusses on these twin walls (or ‘twin boundaries’); therefore, because they possess different crystal structures and generate a large variety of ‘emerging’ properties. Research on wall properties has largely overshadowed research on twin domains. Some wall properties are discussed in this short review, such as their ability for chemical storage, and their structural deformations that generate polarity and piezoelectricity inside the walls, while none of these effects exist in the adjacent domains. Walls contain topological defects, like kinks, and they are strong enough to deform surface regions. These effects have triggered major research initiatives that go well beyond the realm of mineralogy and crystallography. Future work is expected to discover other twin configurations, such as co-elastic twins in quartz and growth twins in other minerals.
Total Tumor Uptake and Absorbed Dose of 177Lu-Lilotomab Satetraxetan in a First in Human Trial for Relapsed Non-Hodgkin Lymphoma - Are We Hitting the Target?

Purpose: 177Lu-lilotomab satetraxetan, a novel CD37 directed radioimmunotherapy (RIT), has been investigated in a first-in-human phase 1/2a study for relapsed non-Hodgkin lymphoma (NHL). Absorbed dose for all tumor tissue in the body is a crucial parameter in RIT which has traditionally been challenging to calculate. The aim of this study was to investigate the correlations between baseline FDG PET/CT and posttreatment SPECT/CT parameters, absorbed dose-response relationships and clinical responses.Materials and methods: A total of 15 patients with different pre-treatment and pre-dosing regimens were included. 177Lu-lilotomab satetraxetan was administered at dosage levels of 10, 15 or 20 MBq/kg. Total radioimmunoconjugate tumor volume (tRTV), total radioimmunoconjugate lesion uptake (tRLU) and total tumor absorbed dose (tTAD) were calculated from posttreatment SPECT/CT. The measured uptake values and absorbed doses were normalized for dosage when appropriate. For some of the analyses, the cohort was divided into low (arm 1) and high (arm 4+5) non-radioactive lilotomab pre-dosing groups. tMTV and tTLG were calculated from FDG PET/CT performed at baseline, 3 and 6 months after RIT, and the percent change for these parameters calculated (∆tMTV3months, ∆tTLG3months and ∆tMTV6months, ∆tTLG6months). Clinical responses were evaluated at 6 months.Results: tTMV and tRTV were significantly correlated (p<0.01). A correlation was also found between tTLG and tRLU (p<0.01). Correlations were not observed between baseline tTMV and tTAD. Decreases in ∆tMTV and ∆tTLG were significantly higher at PET3months for patients receiving tTAD≥200cGy compared to patients receiving lower tumor absorbed doses (p=.03 for both). Also, significant decreases in ∆tMTV3months, ∆tTLG3months and ∆tMTV6months, ∆tTLG6months were observed with increasing tTAD in the high lilotomab patient group. Similarly, responders (patients with complete remission and partial remission) had higher mean tTAD compared to non-responders (stable disease and progressive disease). This was statistically significant in the high lilotomab group. Across the entire population, all non-responders had tTAD < 200cGy, and all patients with tTAD ≥ 200cGy were responders.Conclusion: This work indicates that 177Lu-lilotomab satetraxetan targets FDG avid lesions, and that increasing baseline (tMTV) does not have a decreasing effect on the total tumor absorbed dose (tTAD). The patient group receiving a higher amount of lilotomab pre-dosing demonstrated an absorbed dose–response relationship. Similar results were not observed in the low lilotomab group, which were expected since an overall very good response rate could mask such a relationship for this group. Regardless of pre-dosing, a mean absorbed dose to the total tumor tissue (tTAD) limit of 200cGy may prove valuable to separate clinical non-responders from responders.
Leadership Matters, But So Do Co-Workers: A Study of the Relative Importance of Transformational Leadership and Team Relations for Employee Outcomes and User Satisfaction

In recent decades, public administration has taken a great interest in leadership. However, this interest has been met with concerns that the effects of leadership are overestimated compared to other relevant organizational factors. In this article, we explore the relative importance of formal, vertical leadership, specifically transformational leadership, and horizontal relations, that is, the internal team relations, for different employee outcomes and user satisfaction. We argue that both factors may work through public service motivation (PSM). Based on survey data collected in Danish nursing homes linked with a user satisfaction survey and employee sickness absence data, we find that the internal team relations have the strongest association with some outcome measures, whereas others are more substantially related to vertical leadership. We further find that the relationship between transformational leadership and these outcome measures is fully mediated by PSM, whereas this is not the case with the internal team relations.
A Modification of the Perturb and Observe Method to Improve the Energy Harvesting of PV Systems under Partial Shading Conditions

There are multiples conditions that lead to partial shading conditions (PSC) in photovoltaic systems (PV). Under these conditions, the harvested energy decreases in the PV system. The maximum power point tracking (MPPT) controller aims to harvest the greatest amount of energy even under partial shading conditions. The simplest available MPPT algorithms fail on PSC, whereas the complex ones are effective but require high computational resources and experience in this type of systems. This paper presents a new MPPT algorithm that is simple but effective in tracking the global maximum power point even in PSC. The simulation and experimental results show excellent performance of the proposed algorithm. Additionally, a comparison with a previously proposed algorithm is presented. The comparison shows that the proposal in this paper is faster in tracking the maximum power point than complex algorithms.
Stereo-Preference in the Degradation of the Erythro and Threo Isomers of β‐O‐4‐Type Lignin Model Compounds in Oxidation Processes: Part 1: In the Reaction with Active Oxygen Species Under Oxygen Delignification Conditions

We examined whether or not active oxygen species (AOS) stereo-preferentially attack the erythro or threo isomer of non-phenolic β-O-4 -type lignin model compounds under oxygen delignification conditions. When AOS were generated in situ by the reaction between O2 and co-existing 4-hydroxy-3-methoxybenzyl alcohol (vanillyl alcohol), the obtained results could be explained on the basis of the hypothesis that an electrostatic repulsion exists between the negatively charged oxyl anion radical and the side-chain of the erythro isomer carrying the α-alkoxide anion. This repulsion prevents the reaction between the two species and, consequently, the erythro isomer is degraded less than the threo isomer. When 2,4,6-trimethylphenol (TMPh) was used to generate AOS, the reverse stereo-preference was observed. This reversal could be attributed to the neutral nature of a peroxyl radical that is an important AOS in the TMPh system and can attack the side-chain of the erythro isomer carrying the negatively charged α-alkoxide anion.
Perceived Peer and Teacher Goals: Relationships with Students’ Academic Achievement Goals

ABSTRACT Adolescents’ academic achievement goals are associated with their perceptions of teacher and peer goals. Earlier research focused on perceived teacher goals, mostly disregarding perceived peer goals’ effects. However, since peer-group influence becomes prominent during adolescence, research on students’ perceptions of both peer and teacher goals should contribute to understanding achievement goals. Our main hypothesis was that perceived peer goals mediate the relationship between perceived teacher goals and students’ achievement goals. The research comprised three independent studies: a pilot study (N = 183) validated a measure of perceived peer goals adapted for this study. Study 1 (N = 122) found that perceived peer goals explained more variance in students’ achievement goals than did perceived teacher goals. Study 2 (N = 415) showed that perceived peer goals fully mediated the relationship between perceived teacher goals and students’ achievement goals. These results demonstrated that the simultaneous examination of perceptions of peers and teachers enhances our theoretical understanding of significant others’ goals’ relationships with student achievement goals. Researchers and practitioners may benefit from considering the interdependence between social and academic aspects of motivation in classrooms.
An investigation of emergency virtual observation (EVO) in initial teacher education, in Australia and Ireland during the COVID-19 pandemic

When the World Health Organisation declared the novel Coronavirus outbreak a global pandemic, a change occurred across all levels of the educational landscape. It posed specific challenges in the context of initial teacher education (ITE) and inhibited teacher educators from physically observing pre-service teachers’ lessons on school placement. However, developments in virtual live-streaming technology facilitate student teachers’ lessons being observed by teacher educators in real-time without the need to visit schools. This paper reports on a study conducted in Ireland and Australia in the context of COVID-19 to evaluate emergency virtual observation (EVO) during school placement. Contextualised within teacher education in two University settings, the experience of EVO for a cohort of pre-service teachers and school placement tutors is explored. Findings present affordances and challenges, offering direction for initial teacher education school placement observation in a post-COVID era.
The Effect of Language of Instruction on Middle School Students’ Achievement, Academic Self-concept and Comprehension Abilities in Science Learning

Starting from 2019, Morocco has implemented a new language policy on the medium of instruction for science education. This policy stipulates that scientific and technical subjects should be taught in French. Research has unveiled numerous problems regarding the adoption of foreign or second languages as mediums of instruction . This being the case; the purpose of this study is to investigate the effect of language of instruction on the quality of science education. The researcher deployed an explanatory sequential design. Research instruments consisted of a Likert-scale questionnaire distributed among 114 9th grade middle school students, classroom observations, and interviews with science instructors. The results revealed that the French-medium participants are disadvantaged in learning scientific subjects as they showed lower achievement scores, lower levels of academic self-concept, and they relatively encountered more difficulties with the comprehension of scientific courses. By conclusion, this paper provides a number of pedagogical implications addressed to middle school students, middle school science teachers, school counselors, and finally to language policy decision-makers.
What Makes Teachers Reflective Practitioners? Findings from Remote Schools in Pakistan

Reflective practice is considered a key element of teacher learning. The teaching and learning process are considered incomplete without reflective practice. Therefore, teachers are seen as reflective practitioners and researchers. This paper emerges from a qualitative study carried out in private sector schools in remote Pakistan. We collected data from ten teachers in two private schools through interviews, classroom observations, and document reviews. Data analysis was carried out through qualitative methods. Findings showed that teachers regarded reflections and reflective practice very high for their learning as teachers. Teachers used different approaches for reflective practice including reflective journals, students test results, peer observations, and feedback from parents and communities. Findings have important implications for teaching and learning.