bluuebunny/crossref_metadata_2025 huggingface dataset:
Epektifitas Pemanfaatan Media Buku Pop-Up Pada Pembelajaran Seni Budaya Dan Prakarya Siswa Kelas IV Sekolah Dasar Negeri 126 Palembang
Authors: Kurniati Anita
Published: February 2023

Masalah utama dalam penelitian ini yaitu Apakah media Buku Pop-Up efektif digunakan dalam mengetahui keberagaman budaya di Indonesia padaÂ  pembelajaran Seni Budaya dan Prakarya kelas IV Sekolah Dasar Negeri 126 Palembang. Penelitian ini bertujuan untuk mengetahui apakah mediaÂ  Buku pop-up efektif digunakan dalam mengetahui keberagaman budaya pada pembelajaran Seni Budaya dan Prakarya kelas IV Sekolah Dasar Negeri 126 Palembang. Jenis penelitian ini adalah jenis penelitian Pra-Eksperimen dan menggunakan Desain Penelitian One-Group Pretest-Posttest yang terdiri dari satu kelas yaitu kelas IV.c. Sebelum diberikan perlakuan terlebih dahulu diadakan Pretest untuk mengetahui kemampuan awal murid kemudian diberikan perlakuan dan diadakan Posttest. Dan penelitian ini menggunakan analisis data yaitu Analisis Statistik Deskriptif. Hasil analisis Â Â menunjukkan bahwa: Skor rata-rata sebelum dilakukan pembelajaran menggunakan media Buku Pop-Up (Pretest) adalah 40 dari 34 murid hanya 7 atau 18,75% yang memenuhi kriteria minimal (KKM) atau berada pada kategori Sangat Rendah. Sedangkan skor rata-rata setelah dilakukan pembelajaran menggunakan media Buku Pop-Up (posttest) adalah 80,63 dari 34 murid 30 atau 87,5% yang memenuhi kriteria ketuntasan minimal (KKM) atau berada pada kategori sedang,Â  Rata-rataÂ  persentaseÂ  frekuensiÂ  aktivitasÂ  murid berada pada kategori baik yaitu 67,18%.Hasil Angket respon murid terhadap penggunaan media Buku Pop-Up yaitu 96,87% sehingga dapat di kategorikan baik (positif). Berdasarkan hasil penelitian di atas dapat disimpulkan bahwa media Buku Pop-Up efektif digunakan pada pembelajaran mengetahui Keberagaman budaya Indonesia di kelas IV Sekolah Dasar Negeri 126 Palembang.
Implementasi Pendidikan Karakter Melalui Pembelajaran PKn Pada Siswa Kelas IV SD Negeri 91 Palembang
Authors: Mardiana Mardiana
Published: February 2023

Tujuan dalam penelitian ini adalah untuk mendeskripsikan bagaimana implementasi pendidikan karakter serta faktor pendukung dan penghambat implementasi pendidikan karakter melalui pembelajaran PKn pada siswa kelas IV.C SD Negeri 91 palembang. Metode yang digunakan adalah metode deskriptif kualitatif. Objek dari penelitian adalah implementasi pendidikan karakter melalui pembelajaran PKn. Teknik pengumpulan data yang digunakan menggunakan observasi, wawancara dan dokumentasi. Hasil penelitian menunjukkan bahwa implementasi pendidikan karakter tanggung jawab, disiplin, mandiri dan demokratis melalui pembelajaran PKn di SD Negeri 91 Palembang, sudah diterapkan dengan baik, terlihat dari nilai raport siswa kelas IV.C yang sudah mencapai KKM yang sudah ditetapkan oleh sekolah dan juga terbukti juga dari peraturan yang terapkan oleh sekolah yang sudah ditaati oleh siswa.Faktor pendukung yang dapat membantu pelaksanaan pendidikan karakter adalah faktor dari kurikulum, faktor lingkungan keluarga, faktor dari pembawaan anak, faktor kepribadian anak, serta faktor lingkungan pergaulan. Disamping faktor pendukung ada juga faktor penghambat yang dialami guru pada saat pelaksanaan implementasi pendidikan karakter yaitu, SDM siswa yang berbeda, latar belakang pendidikan orang tua, media massa, keterbatasan waktu belajar di sekolah seperti pada saat pandemi covid-19 sekarang ini dengan belajar daring, dan juga terkadang siswa juga terkendala oleh sinyal, dan kuota.
PERAN GURU DALAM PEMBENTUKAN PRILAKU BELAJAR SISWA BAGI PENINGKATAN MUTU PENDIDIKAN DI SEKOLAH
Authors: Niffa Haniffa
Published: February 2023

Guru adalah faktor utama dalam proses keberhasilan penyelenggaraan pndidikan yang sedang berlangsung. Mengingat pentingnya keterlibatan guru dalam keberhasilanÂ  penyelenggaraan pendidikan, professional guru harus dikembangkan terus menerus supaya mendapatkan hasil yang diinginkan. Penelitian ini bertujuan untuk menggembangkan peran guru dalam pembentukan prilaku belajar siswa bagi peningkatan mutu pendidikan disekolah, Mutu pendidikan harusla sejalan dengan perekambang zamanÂ  seperti pengetahuan, teknologi harus sejalan dengan perkembangan agar bisa membuat anak didik merasa tertarik dengan pemeblajaran yang akan di sampaikan, oleh karena itu harus adanya fasilitas yang melengkapi di sekolahan tersebut sebagai alat belajar
PENGARUH LINGKUNGAN KELUARGA DAN LINGKUNGAN SEKOLAH TERHADAP PRESTASI BELAJAR SISWA DI SEKOLAH DASAR
Authors: Sundari Erwin
Published: February 2023

Tujuan tulisan ini menyajikan tentang pentingnya peran lingkungan keluarga dan lingkungan sekolah untuk meningkatkan prestasi belajar siswa di Sekolah Dasar. Dengan harapan. segala tantangan yang dihadapi orang tua dan guru dalam proses belajar tidak menjadi hambatan siswa dalam memperoleh prestasi.. metodologi yang digunakan pada tulisan ini yaitu dengan menggunakan Kajian Pustaka (Literatur Review). Pengumpulan data dilakukan dengan mencari sumber-sumber data dan informasi dari buku, jurnal, serta sumber informasi yang dianggap relevan. Dengan segala tantangan yang dihadapi orang tua dan dapat mencari solusi yang terbaik untuk mengatasi tantangan belajar di usia Sekolah Dasar. Sehingga siswa dapat meningkatkan prestasi belajarnya dengan baik.Kata Kunci: lingkungan keluarga, lingkungan sekolah, prestasi belajar.
PENGGUNAAN E-LEARNING UNTUK MEMUDAHKAN GURU SEKOLAH DASAR MENGAJAR DI ERA PANDEMI
Authors: Azizah Nur
Published: February 2023

ABSTRAK : Dengan adanya virus COVID-19Â  yang sedang melandaÂ  IndonesiaÂ  saat iniÂ  berdampakÂ  bagiÂ  seluruhÂ  masyarakat.Â  MenurutÂ  kompas,Â  28/03/2020Â  dampak virusÂ  COVID-19Â  terjadiÂ  diberbagaiÂ  bidangÂ  yakniÂ  sosial,Â  ekonomi,Â  pariwisataÂ  dan pendidikan.Â  SuratÂ  EdaranÂ  (SE)Â  yangÂ  dikeluarkanÂ  pemerintahÂ  padaÂ  18Â  MaretÂ  2020 menjelaskanÂ  bahwaÂ  segalaÂ  bentukÂ  kegiatanÂ  didalamÂ  danÂ  diluarÂ  ruanganÂ  diÂ  semua sektorÂ  sementaraÂ  waktuÂ  ditundaÂ  demiÂ  mengurangiÂ  penyebaranÂ  coronaÂ  terutamaÂ  di bidangÂ  pendidikan.Â  PembelajaranÂ  daringÂ  atauÂ  pembelajaranÂ  jarakÂ  jauhÂ  sendiri bertujuanÂ  untukÂ  memenuhiÂ  standarÂ  pendidikanÂ  melaluiÂ  penggunaanÂ  Teknologi InformasiÂ  (TI)Â  denganÂ  menggunakanÂ  perangkatÂ  komputerÂ  atauÂ  gadgetÂ  yang terhubungÂ  antaraÂ  siswaÂ  danÂ  guru.Â  DenganÂ  pembelajaranÂ  daringÂ  siswaÂ  memiliki waktuÂ  yangÂ  leluasaÂ  untukÂ  belajar,Â  siswaÂ  jugaÂ  dapatÂ  belajarÂ  kapanpunÂ  dan dimanapun.Â  SiswaÂ  dapatÂ  berinteraksiÂ  denganÂ  guruÂ  menggunakanÂ  beberapaÂ  aplikasi yangÂ  sudah tersedia misalnyaÂ  googleÂ  classroom,Â  zoomÂ  maupunÂ  whatsapp group.KataÂ  KunciÂ  : COVID-19, pendidikan,Â  pembelajaran daring,Â  belajar, siswaÂ
Penggunaan Gadget Terhadap Motivasi Belajar Siswa Pada Pembelajaran Daring
Authors: Setiyani Dela Apri
Published: February 2023

Tujuan penelitian ini adalah untuk mengetahui penggunaan gadget dalam motivasi belajar siswa dalam pembelajaran daring. Khususnya siswa sekolah dasar. Gadget yaitu perangkat elektronik yang sudah marak sekali. Macam bentuk teknologi ada smartphone, laptop, computer dll. Dampak positif menggunakan gadget bagi siswa SD yaitu bisa mencari informasi seputar pembelajaran di SD, dan dampak negatifnya yaitu akan suka menyendiri untuk bermain Handphone, dan akan berpengaruh motivasi belajarnya. Motivasi belajar itu sangat penting untuk dimiliki oleh setiap manusia. Dalam pembelajaran daring atau jarak jauh tentunya semua manusia akan menggunakan teknologi.
Quarter-tones, Glissandi and their Benefits in Flute Embouchure and Tuning
Authors: Streitova Monika
Published: February 2023

For the elaboration of this article, different compositions and exercises employing quarter tones and glissandi have been selected and applied to effectively resolve various problems in sound production in contemporary, as well as classical music. The objective was to prove that there was a better control of the changes between the flute registers after the application of quarter tones and glissandi. Beyond that, greater control of the tuning and development of the ability to react quickly in the process of correction during a concert was observed with this pedagogical approach. The research has been conducted systematically with the aim to deepen the theoretical knowledge and practical skills of the students, learn contemporary flute techniques and add them to their daily studies.
Predominant Mental Processes in Musical Activities
Authors: Pavel Ana Maria
Published: February 2023

Considering the complexity of knowledge that lies between science and art but  also that of self - knowledge and human creation, with a direct impact which is music, the  main role is taken by the teacher. This one has to have a clear vision of how he teach each  student starting with picking up the violin, from the earliest possible age, to the concert with  a symphony orchestra both as a soloist and as a member of the orchestra. It is the teacher's  duty to nourish and under his/her direct surveillance, with patience and professionalism to  improve the student's skills. The evolution of the young instrumentalist depends on the tact  of the pedagogue and the way of handling mental processes
The Dobrudjan Traditional Ballad
Authors: Rosu Adrian
Published: February 2023

Among the countless categories of works entitled “ballad”, we have structured this paper - for both objective and subjective reasons - around the one which distinctly represents the epic creation to which we are referring, from a certain area of the Romanian territory, i.e., Dobrudja. On the one hand, the subject is too generous in terms of the number and value of the information it entails so as to approach it by referencing a larger area than the one between the Danube and the Black Sea, and on the other hand, as a Dobrudjan, we have naturally considered the references to field recordings, which allowed the creation of collections of texts and the production of melody transcriptions of these pearls of Romanian millenary traditional genre.
Case Study on Road Safety Analysis in the Area of Educational Units
Authors: Tuliga A.P. , Coman C. , Plescan C. , Batranu-Pintea V.
Published: February 2023

The article addresses the topic of road safety in the area of educational units, respectively the effect of road traffic. The aim of the study is to clearly highlight the causality between road accidents involving children as victims and road systematization. To achieve our main objectives, we used as a research method the analysis of documents: Road Accident Database, an application of the Romanian Police in which all traffic incidents registered in Romania are implemented, according to the criteria of Mehedinti County, student quality, road category (national, county, communal), the location of the school unit in the vicinity of the public road and the production of the traffic incident. One of the factors that decisively influences the quality of road traffic, therefore, implicitly the risk in traffic, is the public road network. The specialized studies, as well as the available international statistics, show that the main categories exposed to the risk of road accidents resulting in deaths and serious injuries are: pedestrians, cyclists, motorcyclists, and mopeds, in other words, the category known in specialized practice as "the most vulnerable traffic participants”.
A preliminary exploration of attitudes, beliefs, and barriers to physical therapists’ practices in ordering diagnostic imaging
Authors: Alqabbani Samiah , Alsuwailem Maha , Alshammari Maha , Almutairi Renad , Alharthi Ghada , Almuwais Afrah
Published: February 2023

BACKGROUND: Diagnostic imaging (DI) studies are useful resources for examining musculoskeletal (MSK) conditions. When DI is used appropriately, it is an important tool for physical therapists (PTs). OBJECTIVE: The purpose of this study was to explore the attitudes, beliefs, and barriers to PTs’ practices in referring to DI in Saudi Arabia (SA). METHODS: For this quantitative cross-sectional study, an online self-reported questionnaire was designed and distributed. A total of 138 PTs participated in the study. RESULTS: Although most PTs had access to DI, few reported being able to order DI. The PTs demonstrated positive attitudes regarding their ability to refer patients for DI. Nevertheless, some PTs have adopted several beliefs and awareness of PTs regarding the clinical appropriateness of referring to DI, which may increase the unnecessary utilisation of DI requests. More than half of the PTs in this study reported that they were unfamiliar with the clinical rules used for prescribing imaging. CONCLUSION: This study highlights recommendations to improve PTs’ practices towards DI in SA, such as providing more DI courses targeting PTs and including clinical rules within DI education in undergraduate studies. Furthermore, a clear governmental policy is needed to permit PTs to refer to DI when specific criteria are met.
Immunological analysis of Interleukin-10 (IL-10), tumor necrosis factor-a (TNF-a), and Prostate-specific antigen (PSA) in benign and malignant prostate cancer
Authors: Al-Nasralla Azhar S.H. , Hussian Suzan Saadi , Tektook Nihad Khalawe
Published: February 2023

INTRODUCTION: Among the cancers that impacts men, prostate cancer considerably raises deaths for males around the world. Persons with tumours can have a localized or advanced form of the illness. OBJECTIVE: The present study aimed to determining the relationship between the level of cytokines (IL-10 and TNF-a) and PSA in the sera of patients and compared it with healthy. MATERIALS AND METHODS: A case control study consist of three group included was in this study. The first group involves 50 patients with PC were observation in Al-Amal Oncology Hospital in the period from April 2021 to April 2022 under the supervision of oncology specialists was included in this study. Second group consist of 30 patients. They have benign hyper plaisa (BHP), this group has been collected from urosergical department . Third group was include 20 healthy volunteers (non prostate cancer and non BHP). Prostate specific antigen (PSA) was measured by mini – VIDAS device using kit supplied by Biomerieux – France. IL-10 and TNF-a levels were measured by ELISA technique using kit supplied by CAUSABIO – China. RESULTS: Results of the present study showed the 60–69 years age group scored highest percentage in benign (56.7%), malignant (54.0%), compared to control (healthy) (50.0%), while > 69 years scored least percentage in these groups (3.3%, 14.0%, and 25.0%) respectively with significant different (p< 0.05). Additionally, the IL-10 and PSA scored highest mean levels in the malignant group (1.22 ± 0.23 and 27.66 ± 6.31), while TNF-a scored highest mean levels in a benign group (0.30 ± 0.11). The least mean level of IL-10 was in healthy (0.42 ± 0.15), TNF-a in malignant (0.23 ± 0.03), and PSA in benign (6.73 ± 1.36). Finally, there is a significant difference among age groups and PSA, IL-10, and TNF-parameters. CONCLUSIONS: We concluded the PSA, TNF-a and IL-10 parameters are play important roles in pathogenesis patients with prostate cancer. PCa is high prevalence in elderly population.
Machine Learning Selection of Most Predictive Brain Proteins Suggests Role of Sugar Metabolism in Alzheimer’s Disease
Authors: Tandon Raghav , Levey Allan I. , Lah James J. , Seyfried Nicholas T. , Mitchell Cassie S.
Published: February 2023

Background: The complex and not yet fully understood etiology of Alzheimer’s disease (AD) shows important proteopathic signs which are unlikely to be linked to a single protein. However, protein subsets from deep proteomic datasets can be useful in stratifying patient risk, identifying stage dependent disease markers, and suggesting possible disease mechanisms. Objective: The objective was to identify protein subsets that best classify subjects into control, asymptomatic Alzheimer’s disease (AsymAD), and AD. Methods: Data comprised 6 cohorts; 620 subjects; 3,334 proteins. Brain tissue-derived predictive protein subsets for classifying AD, AsymAD, or control were identified and validated with label-free quantification and machine learning. Results: A 29-protein subset accurately classified AD (AUC = 0.94). However, an 88-protein subset best predicted AsymAD (AUC = 0.92) or Control (AUC = 0.92) from AD (AUC = 0.98). AD versus Control: APP, DHX15, NRXN1, PBXIP1, RABEP1, STOM, and VGF. AD versus AsymAD: ALDH1A1, BDH2, C4A, FABP7, GABBR2, GNAI3, PBXIP1, and PRKAR1B. AsymAD versus Control: APP, C4A, DMXL1, EXOC2, PITPNB, RABEP1, and VGF. Additional predictors: DNAJA3, PTBP2, SLC30A9, VAT1L, CROCC, PNP, SNCB, ENPP6, HAPLN2, PSMD4, and CMAS. Conclusion: Biomarkers were dynamically separable across disease stages. Predictive proteins were significantly enriched to sugar metabolism.
Allostatic Load and Cognitive Function Among Urban Adults in the Healthy Aging in Neighborhoods of Diversity across the Life Span Study
Authors: Beydoun Hind A. , Beydoun May A. , Maldonado Ana I. , Fanelli-Kuczmarski Marie T. , Weiss Jordan , Evans Michele K. , Zonderman Alan B.
Published: February 2023

Background: Cross-sectional studies have linked cognition to allostatic load (AL) which reflects multisystem dysregulation from life course exposure to stressors. Objective: To examine baseline and changes in AL and their relationships with 11 cognitive function test scores, while exploring health disparities according to sex and race. Methods: Longitudinal [Visit 1 (2004–2009) and Visit 2 (2009–2013)] data were analyzed from 2,223 Healthy Aging in Neighborhoods of Diversity across the Life Span participants. We calculated AL total score using cardiovascular, metabolic, and inflammatory risk indicators, and applied group-based trajectory modeling to define AL change. Results: Overall and stratum-specific relationships were evaluated using mixed-effects linear regression models that controlled for socio-demographic, lifestyle, and health characteristics. Baseline AL was significantly associated with higher log-transformed Part A Trail Making Test score [Loge (TRAILS A)] (β= 0.020, p = 0.004) and increasing AL was associated with higher Benton Visual Retention Test score [BVRT] (β= 0.35, p = 0.002) at baseline, in models that controlled for age, sex, race, poverty status, education, literacy, smoking, drug use, the 2010 healthy eating index and body mass index. Baseline AL and AL change were not related to change in cognitive function between visits. There were no statistically significant interaction effects by sex or race in fully-adjusted models. Conclusion: At baseline, AL was associated with worse attention or executive functioning. Increasing AL was associated with worse non-verbal memory or visuo-constructional abilities at baseline. AL was not related to change in cognitive function over time, and relationships did not vary by sex or race.
Cerebrospinal Fluid Panel of Synaptic Proteins in Cerebral Amyloid Angiopathy and Alzheimer’s Disease
Authors: van den Berg Emma , Nilsson Johanna , Kersten Iris , Brinkmalm Gunnar , de Kort Anna M. , Klijn Catharina J.M. , Schreuder Floris H.B.M. , Jäkel Lieke , Gobom Johan , Portelius Erik , Zetterberg Henrik , Brinkmalm Ann , Blennow Kaj , Kuiperij H. Bea , Verbeek Marcel M.
Published: February 2023

Background: Alzheimer’s disease (AD) and cerebral amyloid angiopathy (CAA) share pathogenic pathways related to amyloid-β deposition. Whereas AD is known to affect synaptic function, such an association for CAA remains yet unknown. Objective: We therefore aimed to investigate synaptic dysfunction in CAA. Methods: Multiple reaction monitoring mass spectrometry was used to quantify cerebrospinal fluid (CSF) concentrations of 15 synaptic proteins in CAA and AD patients, and age- and sex-matched cognitively unimpaired controls. Results: We included 25 patients with CAA, 49 patients with AD, and 25 controls. Only neuronal pentraxin-2 levels were decreased in the CSF of CAA patients compared with controls (p = 0.04). CSF concentrations of 12 other synaptic proteins were all increased in AD compared with CAA or controls (all p≤0.01) and were unchanged between CAA and controls. Synaptic protein concentrations in the subgroup of CAA patients positive for AD biomarkers (CAA/ATN+; n = 6) were similar to AD patients, while levels in CAA/ATN- (n = 19) were comparable with those in controls. A regression model including all synaptic proteins differentiated CAA from AD at high accuracy levels (area under the curve 0.987). Conclusion: In contrast to AD, synaptic CSF biomarkers were found to be largely unchanged in CAA. Moreover, concomitant AD pathology in CAA is associated with abnormal synaptic protein levels. Impaired synaptic function in AD was confirmed in this independent cohort. Our findings support an apparent differential involvement of synaptic dysfunction in CAA and AD and may reflect distinct pathological mechanisms.
The Role of Interferon-α in Neurodegenerative Diseases: A Systematic Review
Authors: Hui Brendan Su Mee , Zhi Lee Rui , Retinasamy Thaarvena , Arulsamy Alina , Law Christine Shing Wei , Shaikh Mohd. Farooq , Yeong Keng Yoon
Published: February 2023

Background:

Neurodegenerative diseases (NDs) impose significant financial and healthcare burden on populations all over the world. The prevalence and incidence of NDs have been observed to increase dramatically with age. Hence, the number of reported cases is projected to increase in the future, as life spans continues to rise. Despite this, there is limited effective treatment against most NDs. Interferons (IFNs), a family of cytokines, have been suggested as a promising therapeutic target for NDs, particularly IFN- α, which governs various pathological pathways in different NDs.

Objective:

This systematic review aimed to critically appraise the currently available literature on the pathological role of IFN- α in neurodegeneration/NDs.

Methods:

Three databases, Scopus, PubMed, and Ovid Medline, were utilized for the literature search.

Results:

A total of 77 journal articles were selected for critical evaluation, based on the inclusion and exclusion criteria. The studies selected and elucidated in this current systematic review have showed that IFN- α may play a deleterious role in neurodegenerative diseases through its strong association with the inflammatory processes resulting in mainly neurocognitive impairments. IFN- α may be displaying its neurotoxic function via various mechanisms such as abnormal calcium mineralization, activation of STAT1-dependent mechanisms, and increased quinolinic acid production.

Conclusion:

The exact role IFN- α in these neurodegenerative diseases have yet to be determine due to a lack in more recent evidence, thereby creating a variability in the role of IFN- α. Future investigations should thus be conducted, so that the role played by IFN- α in neurodegenerative diseases could be delineated.
An orientation independent vision based weight estimation model for Alphonso mangoes
Authors: Prabhu Akshatha , Shobha Rani N. , Basavaraju H.T.
Published: February 2023

One of the most essential factors in classifying and qualitatively evaluating mangoes for various industrial uses is weight. To meet grading requirements during industrial processing, this paper presents an orientation-independent weight estimation method for the mango cultivar “Alphonso.” In this study, size and geometry are considered as key variables in estimating weight. Based on the visual fruit geometry, generalized hand-crafted local and global features, and conventional features are calculated and subjected to the proposed feature selection methodology for optimal feature identification. The optimal features are employed in regression analysis to estimate the predicted weight. Four regression models –MLR, Linear SVR, RBF SVR, and polynomial SVR—are used during the experimental trials. A self-collected mango database with two orientations per sample is obtained using a CCD camera. Three different weight estimation techniques are used in the analysis concerning orientation 1, orientation 2, and combining both orientations. The SVR RBF kernel yields a higher correlation between predicted and actual weights, and experiments demonstrate that orientation 1 is symmetric to orientation 2. By exhibiting a correlation coefficient of R2 = 0.99 with SVR-RBF for weight estimation using both orientations as well as individual orientations, it is observed that the correlation between predicted and estimated weights is nearly identical
Adaptation of Statistics Canada and Eurostat methodologies for variance estimation of changes of the main labour force indicators in Iran
Authors: Kalhori Nadrabadi Lida , Mehran Farhad , Reyhani Mohammed Reza , Aliakbari Saba Roshanak
Published: February 2023

The changing values of the indicators obtained from national labour force surveys provide analysts and planners with valuable information on the fluctuations of the labour market of the country. Labour force surveys in many countries follow the standards established by the International Labour Organization, and, as a result, tend to be similar in various respects. Given these similarities, the procedures used by the statistical organizations of Canada and the European Union are examined in this paper for the development of variance estimates of changes of the labour force indicators in Iran. While the survey in Iran and those in the countries under study have many similarities, they also differ in certain respects, namely, in terms of the periodicity of the survey, the rotation pattern as well as the unit of rotation, and the possible existence of non-response among the primary sampling units. Here, first, the methodologies of Statistics Canada and Eurostat are modified and adapted to the particularities of the labour force survey in Iran. Then, the results are compared. Among the four methods examined, the bootstrap methodology of Statistics Canada, after some modifications and adaptations, is found to be especially suitable for application in the labour force survey of Iran and, perhaps, in other counties with similar conditions. The proposed methodology can, particularly well, take into account the impact of the various steps of weight calculations on the variance estimates of change of the main labour force indicators.
Organizational and psychosocial environmental work factors associated with self-rated exhaustion disorder among municipal employees in rural northern Sweden
Authors: Asplund Sofia , Lindgren Britt-Marie , Åström Sture , Hedlund Mattias , Åhlin Johan
Published: February 2023

BACKGROUND: Research indicates that good organizational and psychosocial environments are vital to well-functioning workplaces and employee health. Working in the municipal sector and in the rural context may contribute to more health problems, poorer organizational and psychosocial work environments, and higher sick-leave rates. OBJECTIVE: The aim of this study was to explore organizational and psychosocial environmental work factors among municipal employees with or without self-rated exhaustion disorder (s-ED) in rural northern Sweden. METHODS: The Modern Work Life Questionnaire and the Self-Rated Exhaustion Disorder Scale were used among 1093 municipal employees. RESULTS: The results showed that there were significant differences between the s-ED and the non–s-ED group in all but one of the organizational and psychosocial environmental work factors. Various demands, i.e. quantitative, emotional, intellectual, and IT demands were some factors associated with the s-ED group. Social support, resources, and time for work and reflection were some factors associated with the non–s-ED group. Both the s-ED and the non–s-ED groups assessed significantly higher emotional demands and less resources compared to national reference values. CONCLUSION: Findings from this study are relevant to a better understanding what organizational and psychosocial work environmental work factor the employer need to pay extra attention to. Addressing risk and protective factors in the work environment could tribute to promote occupational well-being, preventing exhaustion disorder and long-term sick leave among municipal employees in rural northern Sweden.
CITRA PEREMPUAN DALAM NOVEL YUSUF ZULAIKHA KARYA ABIDAH EL KHALIEQY
Authors: Anggaira Aria Septi
Published: February 2023

Gender inequalities has become an interesting topic for novelists to be their literary works. One of the novelists who like to discuss this topic is Abidah El Khaileqy. This was a literary research from Abidah El Khaileqy with a descriptive qualitative approach using content analysis methods. The purpose of this research was to examine the image of the main female character in Yusuf Zulaikha's novel related to the perspective of life and the struggle for women's lives. The data in this study were the results of the analysis of the novel Yusuf Zulaikha by Abidah El Khalieqy consisting of words, sentences, character descriptions, and dialogue between figures who describe and interpret the views of women and the life struggles of women. Based on the analysis, 72 data were obtained related to the views of life of women and the life struggles of women in the form of quotes. Zulaikha is imaged as a woman who is steadfast and patient in supporting life. Zulaikha is also imaged as a woman with a strong view and principle of life, with a winding journey of love, and with determination in the struggle to enjoy life. In addition, Zulaikhaa is also imaged for her struggle against stereotypes against women and her struggle against physical/ emotional violence.
U.S.-Chinese Strategic Competition and the Ukraine War: Implications for Asian-Pacific Security
Authors: Winkler Stephanie
Published: February 2023

Against the background of the intensified U.S.-Chinese strategic competition in recent years, this paper examines the implications of the Ukraine war for security in the Asia-Pacific. Based on a qualitative analysis of hundreds of governmental documents, speeches and news articles, the study finds that both the United States and China have exploited the Ukraine war to double down on their strategic rivalry in the Asia-Pacific. The Biden administration has cast China and Russia as similar threats to the international order; intertwined Europe’s problems with those of the Asia-Pacific; and pursued a global anti-authoritarian alliance directed against both Russia and China. China has become an increasingly uninhibited security-seeker as it has recognized its own rapidly deteriorating security situation; America’s resolve to maintain its China policy; and a unique strategic moment in which to present itself globally as an anti-hegemonic, responsible great power. Given these developments, the security situation in the Asia-Pacific is becoming ever more volatile.
Improving the geometrization reliability of qualitative indicators of phosphate ores during their open mining on the example of the Kovdorskoye apatite and staffelite ore field
Authors: Yanitskiy E. B.
Published: February 2023

Background. In this paper, available methods for determining the geometry and density of exploration networks used in operational planning are discussed, along with approaches to determining the permissible error limits in the assessment of geological indicators. The Kovdorskoye apatite and staffelite ore field was selected as a research object.

Aim. To determine the rational parameters of an in-mine sampling network for use in operational planning of phosphate ore mining.

Materials and methods. The research was carried out as part of a project on the development of a methodology for operational in-mine sampling of apatite and staffelite ores. Quantitative data were processed and analyzed using the methods of mathematical statistics and cartography.

Results. The conducted geometric autocorrelation and assessment of the anisotropy of variability in the content of components, which determine the quality of mineral raw materials, allowed the author to establish the rational parameters of an operational in-mine sampling network during the extraction of phosphate raw materials from the Kovdorskoye apatite and staffelite ore field.

Conclusion. The absence of a pronounced anisotropy in the content of P2O5 and CO2 in apatite and staffelite ores was established, which implies the feasibility of using a uniform in-mine sampling network. The parameters of such a network were determined, which confirm the need to sample the rock cuttings in each borehole.
The relationship between teacher classroom management profiles and related teacher stress: a latent profile analysis
Authors:   , Baker Kirsten M.
Published: February 2023

The study was a latent profile analysis of teacher classroom management styles. The data used were derived from a randomized control trial that examined the efficacy of the CHAMPS behavior management program on middle school teachers. There were 187 teachers in this study recruited from Midwestern schools. A latent profile analysis was conducted and revealed a four-class solution. The first class was indicative of the "typical" teacher with moderate ratings of emotional support, classroom structure, and teaching expectations. Additionally, they had low rates of praise, opportunities to respond, and reprimands. The second class was the "ineffective" profile. Teachers in this profile exhibited moderate ratings of emotional support and classroom structure. However, they exhibited low rates of praise, high rates of reprimands, low rates of opportunities to respond, and low ratings of teaching classroom expectations. The third profile was categorized as "proficient." Teachers in the proficient profile earned high ratings of emotional support, moderate ratings of classroom structure, and high ratings of teaching classroom expectations. They also exhibited moderate rates of praise and opportunities to respond as well as a low rate of reprimands. The fourth class was categorized as "superior." Teachers in this profile had high ratings of emotional support, classroom structure, and teaching expectations. They also had high rates of praise, low rates of reprimands, and very high rates of opportunities to respond. Linear regressions were conducted to determine if certain factors influenced profile membership. Results revealed that lower stress and higher coping ratings were associated with membership in the proficient profile. Additionally, low teacher emotional exhaustion was associated with membership in the superior profile. Classroom atmosphere ratings were associated with the ineffective profile when atmosphere ratings were negative as well as the proficient and superior profiles when classroom atmosphere ratings were more positive
Working memory in reinforcement learning
Authors:   , Bhangal Sabrina
Published: February 2023

The ability of an individual to learn from delayed action outcomes helps them to better adapt to their environment. In order for learning to take place, they might utilize working memory to hold in mind a response they have just made and compare it to feedback received. This dissertation encompasses three experiments that test several putative neural correlates of working memory during the prefeedback delay. In the first experiment, I show that two EEG measures, the stimulus-preceding negativity (SPN) and lateralized theta, decline in amplitude over the course of learning a new motor skill. In the second experiment, I show that SPN and frontocentral beta are of greater amplitude in a condition that imposes a high load on working memory for actions. In the third experiment, I show that SPN and frontocentral beta increased progressively across conditions with one, two, or three cues in a probabilistic categorization task. This effect was greatly reduced in participants whose ability to develop complex hypotheses regarding the relation of stimuli, responses, and outcomes was impaired by Parkinson's Disease. By adopting three different approaches to testing the relationship of EEG measures to the brain's ability to bridge the gap between responses and outcomes, this dissertation provides converging evidence regarding the role of working memory.
Production of high specific activity rhenium-186 for radiotherapeutic applications and reformulation of a novel liquid brachytherapy agent
Authors:   , Charles Anster
Published: February 2023

The continued development of methods for the production and separation of high specific activity (HSA) rhenium-186 (t1/2 = 90.64 h, Eb-ave = 359 keV (71 percent), 306 keV (22 percent)) would largely increase its use as a therapeutic analogue to the widely used 99mTc (t1/2 = 6.01 h, Eg = 141 keV (89 percent)). Rhenium-186 has favorable decay properties that make it an attractive candidate for radioimmunotherapy, providing that the radionuclide can be obtained in high specific activity. The similar chemical characteristics of Re and Tc in theory may allow 186Re-based radiopharmaceuticals to be developed as therapeutic analogues to their 99mTc counterparts. In this research, two methods were evaluated for the production and separation of HSA 186Re, and several methods were also evaluated for their efficiency in the selective separation of 186Re post production, as well as high recovery of the costly enriched target material. Yttrium-90 (t1/2 = 64 h, Eb-max = 2.28 MeV (99.99 percent)) also displays excellent decay properties for targeted radiotherapy, which is exploited by the formulation of a novel liquid brachytherapy agent, BetaBrachTM. The HSA 90Y utilized for the current formulation of BetaBrachTM can be replaced by low specific activity (LSA) 90Y produced in a nuclear reactor. Replacing HSA 90Y with LSA 90Y may offer significant economic advantages if the demand for BetaBrachTM requires large scale production of 90Y. Thus, this work also evaluates the chemical and physical characterization of LSA 90Y formulated BetaBrachTM as well as its therapeutic efficacy.
Simultaneous local resolution along a rational valuation in two dimensional positive characteristic function fields
Authors:   , Chenicheri Chathoth Navaneeth
Published: February 2023

We consider the condition that a germ of an algebraic mapping of nonsingular surfaces can be made finite, after sufficient blowing up along a nondiscrete rational rank 1 valuation. This problem has been solved in the affirmative in characteristic zero by Abhyankar. He calls this simultaneous resolution. The essential new case that occurs in positive characteristic p is a chain of Artin-Schreier extensions. It is known that simultaneous local resolution is true (along a nondiscrete rational rank 1 valuation) for a single Artin-Schreier extension. We prove that simultaneous local resolution is true in a tower of two Artin-Schreier extensions.
Essays on the bureaucratic representation in schools
Authors:   , Cho Ikhee
Published: February 2023

This dissertation contains three essays on the role of school principals and educational outcomes. The first essay estimates the effects of demographic congruence between teachers and their principals on teacher turnover. Teachers working under same-race principals are less likely to leave their schools. The effects of racial congruence between teachers and principals on teacher turnover are stronger for Black teachers than White teachers. These findings are mostly driven by teacher turnover across school districts among different types of teacher turnover. The second essay examines the impact of having a nonwhite principal on the perceptions of teachers about school climate. As the percentage of nonwhite teachers increases at a school, it is positively related to teachers' response, on average, that their nonwhite principals give them regular and helpful feedback about their teaching. Furthermore, teachers are more likely to give higher ratings on Black principals prioritizing the learning needs of children when the proportion of Black teachers increases. The third essay studies the role of principals on student disciplinary infractions by utilizing a longitudinal difference-in-difference approach. Comparing the gaps in school discipline between White and Black students, I find that Black principals are more likely to reduce gaps between Black and White students. Specifically, having Black principals reduces the gaps in rates of out of school suspensions between Black and White students by 9 percent points on average.
How teachers design curriculum units: a case study of algebra teachers' instructional decision-making processes and products
Authors:   , Han Jaepil
Published: February 2023

This study examined how algebra teachers plan curriculum units when they actively design their curriculum. I used a case study (Yin, 2013) of five experienced high school mathematics teachers who came from school districts of varying sizes across the nation. More specifically, I analyzed the teachers' unit planning processes and products by applying a participatory relationship perspective between teacher and curriculum (Remillard, 2005). I found that the teachers' unit planning was a cyclical and ongoing process, which occurred not just before the unit began but also while the unit was underway and even after the unit ended. Curriculum units were the unit of planning for most teachers. A unit schedule was the most common element of the document that the teachers created during their unit planning. The teachers examined the importance of their unit components (e.g., concepts, problems, warm-ups, reviews) and made decisions based on not only the component's importance to students' mathematics learning but also student progress towards the desired learning goals. Interestingly, time constraints did not influence the teachers' plans on assessments but only their plans on lessons and pacing. The findings from this study urge future research efforts to specify differences within each of the seven unit planning practices and investigate the relationship between them. This study also provides a valuable framework for developing preservice and in-service teachers' pedagogical design capacities.
Pandemic sensemaking: how Missouri superintendents made sense of the COVID-19 pandemic
Authors:   , Harris Ryan Daniel
Published: February 2023

COVID-19 has produced mayhem and uncertainty for educational leaders in charge of organizations. This inquiry sought to provide insight into how superintendents and assistant superintendents made sense of their environments during the COVID-19 pandemic. Specifically, sensemaking theory (Weick, 1995) was utilized as the conceptual framework to bring clarity and meaning-making for educational leaders as they led their organizations through local, state, national, and international crises. To this end, the focus of this inquiry was to gather school leader's insights into how they provided clarity to a disordered world, understood how they addressed vulnerable populations during the pandemic, recognized the role emotion played in constructing their realities, and determined if location within the state of Missouri played a role in the sensemaking process of superintendents and assistant superintendents.
Lifestyle treatment in the regression of NASH: insulin resistance, lipid synthesis, and methodological innovation
Authors:   , Mucinski Justine M.
Published: February 2023

This dissertation is focused on factors that increase risk for nonalcoholic fatty liver disease (NALFD) and the more advanced form nonalcoholic steatohepatitis (NASH). These factors include postprandial lipid handling (chapter II); ceramide (CER) turnover (chapter III), hepatic and mitochondrial CER content (chapter III); glucose turnover (chapter IV), de novo lipogenesis (chapter IV), and hepatic fatty acid oxidation (chapter V). With regard to postprandial lipemia, healthy men consumed an oral isotope (2H11-oleate) in liquid meals of varying fat content and labeled triglycerides (TG) tracked into chylomicrons and triglyceride rich lipoproteins (TRL). This method may be applied to future studies of postprandial lipemia. Similar analytical methods (liquid chromatography mass spectrometry) were used to track the synthesis of CERs within hepatic tissues of mice consuming 13C3 15N L-serine dissolved in their water and a high fat (60 percent energy, HFD) or a control (low fat, 20 percentE, CD) diet for two weeks. The mice fed a HFD exhibited greater absolute CER turnover in both whole liver tissue and isolated mitochondria. Furthermore, while total liver concentrations did not differ between diet groups, the HFD elicited greater mitochondrial CER content which was related to total liver CER only in these animals. Plasma CER concentrations were measured in subjects with advanced NASH before and after a nine-month lifestyle program (and a standard care group) and the change in 16:0 CER was negatively related to improvements in liver fat. Similarly, an increase in glucose production and disposal were related negatively to histologic improvements. Together, these data support a hepatic benefit of routing substrates - glucose and lipotoxic lipids -- away from the liver. In addition to testing changes in glucose metabolism, these subjects had significant reductions in lipogenesis but no changes in a non-invasive breath test (13C4 Octanoate) to quantify total hepatic fatty acid oxidation using expelled breath. Correlations between baseline and the change in octanoate oxidation, glucose turnover, and steatosis support the utility of this method to investigate physiological processes that improve hepatic lipid burden. Currently, no drug therapies exist for the treatment of NAFLD or NASH and the results from the current studies support future investigations in identifying key factors for the regression of advanced liver disease through methodological innovation and novel findings with combined intensive lifestyle treatment.
Understanding the role of Coxiella outer membrane protein-1 in relation to the Type IVB Secretion system of Coxiella burnetii
Authors:   , Olivarez Nicholas Paul
Published: February 2023

Obligate intracellular bacterial pathogens, like Coxiella burnetii, the causative agent of Q Fever, rely upon the host for metabolites and carbon sources for energy and biosynthesis of nucleic acids, proteins, and energy rich molecules necessary for active vegetative growth in the host. Deficiencies in biosynthetic pathways were previously identified through genomic analyses of C. burnetii, but bacterial factors contributing to pathogenesis, with the exception of the O-lipopolysaccharide (O-LPS) and the Type IVb Secretion System (T4BSS), remain elusive. The poor efficacy of treatment and vaccine options necessitates understanding how bacterial factors contribute to disease severity, persistence of infections, and inconsistent treatment outcomes. Disulfide bond (Dsb) proteins are integral in the formation and isomerization of disulfide bonds in the T4bSS. Dsb proteins in other bacterial pathogens act upon known virulence factors that promote pathogenicity. The purpose of this study was to characterize the Coxiella outer membrane protein 1 (Com1), a putative Dsb protein, establish that it is a functional Dsb protein, and that it is linked to known virulence factors. This work will deepen the understanding in the Coxiella field of factors that might serve as alternative targets for therapeutics.