bluuebunny/crossref_metadata_2025 huggingface dataset:
Learning Curve as Effective Approach to Study Efficiency and Productivity in Business Process
Authors: Parashar Dr. Suhasini
Published: September 2024

Learning is a process/technique increasing knowledge or skill through study or experience. Learning helps to become aware of situation/state through observing or hearing about whether it is process, functioning, operational procedure etc.. The learning curve refer as the experience curve, the cost curve, the efficiency curve, or the productivity curve. It is in various form increasing, diminishing learning curve how a process(Business/Operation) is improved during time due to learning and increased proficiency/efficiency. The learning curve theory explains, it is a process which helps to study the task performed is taking less time and resources used and productivity depends upon performance due to competency/efficiency as process will be learned. A learning curve is explained the rate of improvement in techniques and gives best result in production process. In business, the slope of the learning curve represents the rate at which learning new skills/knowledge add cost-savings technique in business. In this article, the focus is on to study types and application of learning curve in business as efficiency and experience effect cost and productivity respectively.
Bilinçli Farkındalık ve Mental İyi Oluş İlişkisi: Spor Yapan ve Yapmayan Üniversite Öğrencileri Üzerine Kesitsel Bir Analiz
Authors: Çakır Gökhan
Published: September 2024

Bu araştırmada, bilinçli farkındalık ve mental iyi oluş ilişkisini ortaya koymanın yanı sıra spora katılımın bilinçli farkındalık ve mental iyi oluş üzerindeki etkisini incelemek amaçlanmaktadır. Bu amaç doğrultusunda araştırmaya RTEÜ ve Kırşehir Ahi Evran Üniversitelerinde öğrenim gören 830 üniversite öğrencisi katılmıştır. Araştırma, nicel yöntemlerde sıklıkla tercih edilen betimsel-ilişkisel tarama modelinde tasarlanmıştır. Araştırma kapsamında toplanan veriler “Bilinçli Farkındalık Ölçeği”, ve “Mental İyi Oluş Ölçeği”nden elde edilmiştir. Ayrıca spor ile ilgili değişkenleri de içeren demografik bilgi formu kullanılmıştır. Araştırma bulgularına göre, lisanslı olarak spor yapan öğrencilerin bilinçli farkındalık ve mental iyi oluş düzeylerinin lisanslı olarak spor yapmayanlardan anlamlı bir şekilde daha yüksek olduğu görülmüştür. Yine, spor bilimleri fakültelerinde öğrenim gören öğrencilerin bilinçli farkındalık ve mental iyi oluş düzeylerinin diğer fakültelerde öğrenim gören öğrencilere kıyasla anlamlı bir şekilde daha yüksek olduğu görülmüştür. Araştırmanın bir diğer bulgusuna göre, üniversite öğrencilerinin bilinçli farkındalık ile mental iyi oluş düzeyleri arasında anlamlı bir ilişki olduğu gözlenmiş, bilinçli farkındalığın mental iyi oluşunu etkilediği görülmüştür. Sonuç olarak, üniversite öğrencilerinde, bilinçli farkındalığın mental iyi oluşun anlamlı bir yordayıcısı olduğu ve spor ile ilişkin değişkenlerin öğrencilerin bilinçli farkındalık ve mental iyi oluş düzeyleri üzerinde farklılık yarattığı görülmüştür.
Ebeveynlerin Ev Ortamında Çocukları ile Gerçekleştirdikleri Sesli Okuma Uygulamaları
Authors: Durmaz Mücahit , Topçam Abdurrahman Baki , Sönmez Muhammet , Yıldırım Kasım , Sezer Behlül Bilal
Published: September 2024

Bu çalışmanın amacı ebeveynlerin çocuklarıyla ev ortamında yürüttükleri sesli okuma deneyimlerini incelemektir. Araştırmanın çalışma grubunu 4-5 yaş aralığı çocuğa sahip ve sosyoekonomik düzeyi orta düzeyde olan beş ebeveyn oluşturmuştur. Ebeveynlerden belirlenen resimli çocuk kitaplarını çocuklarına seslendirmeleri ve aynı zamanda tüm seslendirme süreçlerini video kaydı altına almaları istenmiştir. Çocuklarla birlikte yapılan sesli okuma uygulamaları bir hafta sürmüştür. Ebeveynlerden gelen video kayıtları araştırmacılar tarafından sesli okuma envanteri yardımıyla analiz edilmiştir. Elde edilen bulgular sesli okuma uygulamaları sırasında ebeveynlerin çok fazla yazı farkındalığı/alfabe bilgisi ve fonolojik/ses bilgisel farkındalık boyutlarına yönelik etkinliklere yer vermedikleri görülmüştür. Diğer taraftan ebeveynlerin sesli okuma uygulamaları sırasında anlamayı destekleme/kelime bilgisi ve metne dikkat boyutlarına yönelik etkinliklere nispeten daha fazla yer verdikleri anlaşılmıştır.
Türkiye’de Afganistan’la İlgili Yapılmış Eğitim Tezleri Üzerine Bir Çalışma
Authors: Bek Hafiz
Published: September 2024

Bu çalışmada Türkiye’de eğitim alanında yapılmış Afganistan ile ilgili lisansüstü tezleri incelemek hedeflenmiştir. Türkiye Yüksek Öğretim Kurumu'nun onayı ile yayınlanan tezlerden Afganistan ile alakalı ve eğitim alanında yapılmış tezler çalışma kapsamına alınmıştır. Çalışmanın amacı doğrultusunda mevcut durumu incelemek ve ortaya koymak için doküman analizi yöntemi kullanılmıştır. Çalışma kapsamında incelenen tezlerde yazarların demografik özellikleri, tez yazımında kullanılan dil, tezlerin mezuniyet derecesi, basım yılı, danışman ve üniversite bilgileri gibi değişkenler detaylı olarak ele alınmıştır. Tezler, çalışmanın amacına yönelik olarak araştırma kapsamı ve yöntemi bağlamında değerlendirilmiştir. Araştırma bulgularına göre Türkiye'de Afganistan ile ilgili eğitim alanında yapılmış tezlerin yazarlarının % 25'i kadın, %75'i erkektir. Tezlerin yazımında kullanılan dil bağlamında, 41'inin Türkçe, 6'sının İngilizce olduğu belirlenmiştir. Tezlerin mezuniyet dereceleri dağılımı ise % 85.1 yüksek lisans, %14.9 doktora şeklindedir. Tezlerin basım yılı incelendiğinde 2005 ile 2022 yılları arasında bir yoğunluk olduğu söylenebilmektedir. İncelenen tezlerde danışman olarak profesör unvanına sahip öğretim üyelerinin daha fazla yer aldığı ve tez yazarlarının daha çok İstanbul Üniversitesi mezunu olduğu belirlenmiştir. Çalışma kapsamında lisansüstü tezlerin başlıklarının analizinde 11 farklı alt başlık tespit edilmiştir. Buna ek olarak, incelenen tezlerin yönteminde nitel çalışmaların daha çok tercih edildiği görülmüştür.
Okul Öncesi Dönem Çocuklarının Fene İlişkin Şemalarının İncelenmesi: Bilişsel Harita Örneği
Authors: Doğanay Koç Esra
Published: September 2024

Okul öncesi dönem, çocukların tüm gelişim alanları için kritik bir süreçtir. Bu dönemde verilecek fen eğitimi de günümüzde daha çok önem kazanmaya başlamıştır. Çocuklara, etkinliklerle ve fen merkezlerindeki materyaller aracılığıyla fen eğitimine karşı olumlu tutum, merak ve becerileri kazandırmak mümkündür. Bu araştırmada, okul öncesi dönem çocuklarının fene ilişkin şemalarını bilişsel haritalama yöntemi ile incelemek amaçlanmıştır. Araştırma nitel araştırma yöntemlerinden olgubilim kullanılarak gerçekleştirilmiştir. Araştırma verileri okul öncesi eğitime devam eden gönüllü 4-6 yaş arası 4’ü kız ve 11’i erkek olan 15 çocuk ile nitel yarı yapılandırılmış görüşme yöntemi ile toplanmıştır. Araştırmacılar tarafından “Fene İlişkin Şemalar İçin Okul Öncesi Dönem Çocukları ile Görüşme Formu” hazırlanmış ve hazırlanan forma uzman görüşleri sonrasında son hali verilmiştir. Araştırmanın sonuçlarına göre; okul öncesi dönem çocuklarının genel olarak fen kavramını deney ile ilişkilendirdikleri, daha önceden fen etkinliği yaptığını, anlattığı fen etkinliğinin deney yöntemi ile yapıldığı ve fizik bilim konulu bir etkinlik olduğu, fen eğitiminin deney yapmayı öğrettiği, fen etkinliklerini ev ortamında, bilim adamı gibi ya da günlük kıyafetler giyinerek yapmamız gerektiği, sınıflarında fen merkezi olmasına rağmen çocuklarının farkında olmadığı, fen merkezinde deney malzemelerinin bulunduğu, fen merkezinde mikroskop ve su ile vakit geçirmekten hoşlanıldığı ve fen etkinliklerini daha çok erkek çocukların sevdiği görülmektedir. Araştırma sonuçları doğrultusunda önerilere yer verilmiştir.
Öğrencilerin Çevrimiçi Tematik STEM Uygulamalarından Çekilme Nedenlerinin İncelenmesi
Authors: Mumay Yıldız Nurhan , Yamak Havva
Published: September 2024

Çevrimiçi (Online) Tematik STEM Uygulamaları (OTSU), uzaktan eğitim olarak kabul edilen çevrimiçi eğitim yolu ile tematik STEM uygulamalarını esas alan bir ders dışı çalışmadır. Araştırmanın çalışma grubunu Ankara’da bir imam hatip ortaokulunda 6. sınıfta öğrenim görmekte olan kız öğrencilerden ders dışı faaliyet olarak yürütülen OTSU’ya gönüllü olarak katılıp daha sonrasında çalışmadan çekilen ya da devamsızlık nedeni ile çıkarılanlardan 6’sı oluşturmuştur. Bu çalışmada öğrencilerin OTSU’dan çekilme veya devamsızlık yapma nedenleri araştırılmıştır. Araştırma deseni olarak nitel araştırma yöntemlerinden “durum çalışması” tercih edilmiştir. Araştırmada veri toplama aracı olarak yarı yapılandırılmış görüşme formu, verilerin analizinde ise içerik analizi kullanılmıştır. Yarı yapılandırılmış görüşme formundaki sorulara öğrencilerin verdikleri cevaplar değerlendirildiğinde onların çekilme nedeninin 1) “STEM alanlarına ilgi duymamaları” olmadığı 2) “Uzaktan eğitimde karşılaştıkları zorluklar” olarak belirttikleri tespit edilmiştir. Öğrencilerin önceki çevrimiçi eğitimlerindeki deneyimlerinin olumsuz olması ve yüz yüze eğitimi çevrimiçi eğitime tercih etmeleri onların OTSU’dan çekilmenin en kuvvetli ihtimalinin eğitimin çevrimiçi olması olarak yorumlanabilir.
Prognostic factors influencing survival rates in elderly patients with metastatic renal cell carcinoma
Authors: Semenov D. V. , Orlova R. V. , Shirokorad V. I. , Kostritsky S. V. , Kononets P. V.
Published: September 2024

Purpose of the study. To determine the influence of prognostic factors on survival rates in patients with metastatic renal cell carcinoma (mRCC) aged ≥ 75 years.

Materials and methods. A retrospective study included 77 mRCC patients aged ≥ 75 years who received systemic therapy at the Municipal Oncologic Hospital No. 62 in Moscow and the Municipal Oncologic Dispensary in St. Petersburg from 2006 to 2019. Clinical data from medical records were obtained and analyzed retrospectively, all patients underwent clinical, laboratory, and pathomorphological examination. Patients' survival rates were evaluated using the statistical method of survival time analysis (Survival Analysis). Descriptive characteristics of survival time were calculated in the form of life tables, and Kaplan-Meier curves were constructed.

Results. In the present study, a favorable prognosis according to International Metastatic Renal Cell Carcinoma Database Consortium (IMDC)was noted in 20.8 % of patients with mRCC aged ≥ 75 years; 6.5 % had solitary metastases. The 3- and 5-year survival rates were 35.8 % and 21.2 %.

In single-factor analysis in mRCC patients ≥ 75 years of age, it was found that ECOG status (p < 0.001), histological subtype (p = 0,01), Fuhrman grade of tumour differentiation (p = 0.003), type of metastases (p = 0.045), liver metastases (p < 0.001), IMDC prognosis (p = 0.042) and nephrectomy (p = 0.014).

Conclusion. In a multivariate analysis, factors affecting survival in patients with mRCC aged ≥ 75 years included sex, histologic subtype, number of metastases, bone and lymph node metastases, IMDC prognosis, and radiation therapy and nephrectomy. Further studies are needed to identify additional personalized prognostic factors in elderly patients with mRCC.
Endovascular surgery in patients with coronary artery disease in combination with cancer
Authors: Alekyan B. G. , Gritskevich A. A. , Karapetyan N. G. , Ruchkin D. V. , Pechetov A. A. , Markov P. V. , Gurmikov B. N. , Irodova N. L. , Gyoletsyan L. G. , Tokmakov E. V. , Galstyan A. V. , Revishvili A. Sh.
Published: September 2024

Purpose of the study. To analyze the long-term results from various strategies of endovascular treatment for coronary artery disease (CAD) in patients concomitant with cancer.

Patients and methods. 74 patients with both CAD disease and cancer were treated in A. V. Vishnevskiy National Medical Research Center of Surgery from 01/01/2018 to 12/31/2022. By a multidisciplinary council, patients were divided into three groups: group 1 (n = 39) – staged treatment: percutaneous coronary intervention (PCI) is the first stage, the second is surgical treatment of cancer; group 2 (n = 14) – staged treatment: the first stage was surgical treatment of cancer, and the second stage was PCI; group 3 (n = 21) – PCI and open surgery were performed on the same day.

Results. In the immediate period, 3 (4.0 %) deaths were observed: 2 (5.1 %) in group 1, 1 (4.8 %) in group 3, the cause of which was complications arising after oncological surgical interventions. One (2.6 %) patient from group 1 had acute myocardial infarction (AMI) due to acute stent thrombosis in the left anterior descending artery (LAD). The patient underwent successful emergency PCI. In the long-term period, 15 (25.4 %) patients died, out of which 11 (18.7 %) from progression of cancer, and 4 (6.7 %) from other causes. Among the major cardiovascular complications, the following were observed: 1 (3.2 %) AMI in group 1 and 1 (7.1 %) in group 2.

Conclusion. In the long-term follow-up period, the leading cause of death (73,3 %) was progression of cancer. There were no detected from deaths AMI, which confirms the importance and feasibility of myocardial revascularization in this severe group of patients. PCI in patients with coronary artery disease in combination with cancer allows for effective and safe surgical treatment of malignant pathology without cardiac mortality both in the immediate and long-term follow-up periods.
Urine transcriptomic profile in terms of malignant ovarian tumors
Authors: Kutilin D. S. , Filippov F. E. , Porhanova N. V. , Maksimov A. Yu.
Published: September 2024

Purpose of the study. Bioinformatic search for transcriptomic markers (based on metabolomic data) and their validation in the urine of serous ovarian adenocarcinoma patients.

Materials and methods. The study included 70 patients with serous ovarian adenocarcinoma and 30 conditionally healthy individuals. The search for metabolite regulator genes and gene regulator microRNAs was performed using the Random forest machine learning method. Ribonucleic acid (RNA) was isolated using the RNeasy Plus Universal Kits. The level of microRNA transcripts in urine was determined by real-time PCR. Differences were assessed using the Mann-Whitney test with Bonferroni correction.

Results. Using the Random forest method, metabolite-regulator gene (47 genes) and metabolite-regulator microRNA (613 unique microRNA) relationships were established. The identified microRNAs were validated by real-time PCR. Changes in the levels of microRNA transcripts were detected: miR-382-5p, miR-593-3p, miR-29a-5p, miR-2110, miR-30c-5p, miR-181a-5p, let-7b-5p, miR-27a-3p, miR-370-3p, miR-6529-5p, miR-653-5p, miR-4742-5p, miR-2467-3p, miR-1909-5p, miR-6743-5p, miR-875-3p, miR-19a-3p, miR-208a-5p, miR-330-5p, miR-1207-5p, miR-4668-3p, miR-3193, miR-23a-3p, miR-12132, miR-765, miR-181b-5p, miR-4529-3p, miR-33b-5p, miR-17-5p, miR-6866-3p, miR-4753-5p, miR-103a-3p, miR-423-5p, miR-491-5p, miR-196b-5p, miR-6843-3p, miR-423-5p and miR-3184-5p in the urine of patients compared to conditionally healthy individuals.

Conclusion. Thus, urine transcriptome profiling allowed both to identify potential disease markers and to better understand the molecular mechanisms of changes underlying ovarian cancer development.
Metabolomic profile of malignant ovarian tumors
Authors: Filippov F. E. , Kutilin D. S. , Maksimov A. Yu. , Porkhanova N. V.
Published: September 2024

Purpose of the study. Investigate the metabolomic profile in tissues of patients with serous ovarian adenocarcinoma.

Materials and methods. The study included 100 patients with serous ovarian adenocarcinoma. Chromatographic separation of metabolites was performed on a Vanquish Flex UHPLC System chromatograph, which was coupled with an Orbitrap Exploris 480 mass spectrometer. Differences were assessed using the Mann-Whitney test with Bonferroni correction.

Results. In ovarian tumor tissue, 20 compounds had abnormal concentrations compared to normal tissue: increased levels of kynurenine, phenylalanylvaline, lysophosphatidylcholine (18:3), lysophosphatidylcholine (18:2), alanylleucine, L-phenylalanine, phosphatidylinositol (34:1), 5-methoxytryptophan, lysophosphatidylcholine (14:0), indoleacrylic acid and decreased levels of myristic acid, decanoylcarnitine, aspartylglycine, malonylcarnitine, 3-methylxanthine, 3-oxododecanoic acid, 2-hydroxymyristic acid, N-acetylproline, L-octanoylcarnitine and capryloylglycine.

Conclusion. A significant metabolic imbalance was found in ovarian tumor tissue, expressed in abnormal concentrations of fatty acids and their derivatives, acylcarnitines, amino acids and their derivatives, phospholipids and nitrogenous base derivatives. The concentrations of these 20 metabolites in tissues can serve as diagnostic markers of ovarian cancer. Thus, metabolomic tissue profiling allowed both to identify potential markers of the disease and to better understand the molecular mechanisms of changes underlying the development of this disease.
Okul Öncesi Öğretmen Adaylarının Fen Etkinliklerini Planlama ve Uygulama Süreçlerine Yönelik Görüşlerinin İncelenmesi
Authors: Günşen Gülşah , Uyanık Gülden
Published: September 2024

Araştırmanın amacı okul öncesi öğretmen adaylarının öğretmenlik uygulaması dersi kapsamında fen etkinliklerini planlama ve uygulama süreçlerine yönelik görüşlerinin ve hazırladıkları fen eğitim planlarının incelenmesidir. Nitel araştırma yöntemlerinden fenomenolojik yöntem kullanılarak yapılan araştırmanın çalışma grubunu Türkiye’de Marmara Bölgesi’nde yer alan bir üniversitesinin eğitim fakültesindeki okul öncesi öğretmenliği lisans programının son sınıfındaki 11 okul öncesi öğretmen adayı oluşturmaktadır. Araştırmada veri toplama aracı olarak araştırma kapsamında geliştirilen ve uzman görüşü alınarak son hali verilen okul öncesi öğretmen adaylarının fen eğitim planlarını oluşturma ve uygulama süreçlerine yönelik görüşlerinin belirlendiği yarı yapılandırılmış görüşme formu kullanılmıştır. Form genel düşünce, planlama ve uygulama-değerlendirme olmak üzere üç alt bölümden oluşmaktadır. Uygulama sürecinde öğretmen adaylarından bir adet bütünleştirilmiş fen eğitim planı hazırlamaları ve uygulamaları istenmiştir. Uygulamaları sonrasında da sürece yönelik görüşleri alınmıştır. Araştırma sonucunda okul öncesi öğretmen adaylarının genel olarak fene ilgi duymadıkları, planlama yaparken ve uygulama yaparken zorlandıkları, planlarını hazırlarken daha çok internetten yararlandıkları tespit edilmiştir. Hazırladıkları planların daha çok 60 ay ve üzeri çocuklara yönelik olduğu ve planlarını büyük grup şeklinde ve iç mekân kullanılarak hazırladıkları, bilişsel ve dil gelişimine, deney yöntemine ağırlık verdikleri, fen alanını sanat alanı ile bütünleştirdikleri ve aile katılım çalışmalarına az yer verdikleri tespit edilmiştir. Bununla birlikte kavram olarak kirli-temiz, ağır-hafif, sıcak-soğuk, önce-şimdi-sonra, renk kavramlarından mor rengini ele aldıkları ve sözcük olarak mikrop, yüzme-batma, karışım, renk sözcüklerini kullandıkları ve yoğunluk, çözünme, ısı-sıcaklık, mikrop, mikroskop kavramlarında kavram yanılgılarına sahip oldukları görülmektedir.
Sevilen Çizgi Karakterlerin Değerler Açısından İncelenmesi (MEB Okul Öncesi Eğitim Programı-2024)
Authors: Sildir Daşar Emine
Published: September 2024

Okul öncesi dönem çocukları çizgi dizileri severek takip etmekte, oradaki karakterleri rol model olarak görmektedirler. Bu sebeple çizgi karakterlerin nitelikleri, neleri sembolize ettikleri, davranışları ve tutumları önem arz etmektedir. Araştırmada okul öncesi eğitime devam eden çocukların sevdikleri çizgi karakterlerin yenilenen Okul Öncesi Eğitim Programında (2024) yer alan değerler bağlamında incelenmesi amaçlanmıştır. Bu amaçla öncelikle okul öncesi eğitime devam eden çocukların ailelerinden çocukların sevdikleri çizgi karakterler belirlenmiş, ardından bu karakterler 2024 yılında yayınlanan Okul Öncesi Eğitim Programında yer alan değerleri sergilemeleri/göstermeleri açısından incelenmiştir. Bu incelemeler programda yer alan değerlerle ilgili tutum ve davranışlar ile sınırlandırılmıştır. Araştırmada nitel araştırma modellerinden doküman analizi kullanılmıştır. Tüm gözlem sonuçları frekansları ile ifade edilerek yorumlamaları yapılmıştır. Sonuç olarak çalışma grubunu oluşturan çizgi dizi karakterinin en fazla yardımseverliği sergilediği gözlemlenmiştir. Bununla birlikte adalet değerinin ise hiç gözlemlenmemiş olması dikkati çekmektedir. Araştırmanın çizgi karakterleri tanımaya yardımcı olacağı, böylece de eğitimcilere ve ailelere yol gösterici olacağı düşünülmektedir. Ayrıca çizgi diziler için karakterler oluşturan profesyoneller için hangi değerlerin karakterlerle yansıtılmasına ihtiyaç duyulduğunu göstermektedir
FLEXURAL STRENGTHENING OF THERMALLY MODIFIED RUBBERWOOD GLULAM BEAMS WITH FRP UNDER STATIC AND CYCLIC LOADS
Authors: UDTARANAKRON THIPPAKORN , PULNGERN TAWICH , MAHASUWANCHAI NATTAWAT , SOMBATKAEW CHANNARONG , CHINNARAT THEERAPAT , SOMBATSOMPOP NARONGRIT
Published: September 2024

The purpose of this research is to investigate the flexural properties and cyclic response of strengthened with fiber reinforced polymer (FRP) of glulam beam made from thermally modified rubberwood. The efficiency of three different FRP was assessed based on the bonding properties. The experimental results demonstrated that the glass fiber-reinforced polymer (GFRP) showed the strongest adhesion. Static and cyclic flexural tests were also carried out to study the behavior of glulam beams. The static test results indicated that double sides strengthened glulam beam enhanced their flexural strength. The strengthened glulam beams under static load demonstrated a reduced deformation rate due to increased modulus of rupture compared to non-strengthening glulam beam. The cyclic load test showed the strengthening effect on improving energy dissipation and ductility, while the impairment of strength did not affect.
La Educación Física en la Primaria en Colombia
Authors: Copete Perea Wilmar Fred
Published: September 2024

En la siguiente investigación quiero continuar con proceso que vengo adelantando hace ya varios años y tiene que ver con la falta de profesionales especializados en el área de educación física para la primaria en Colombia, que, aunque han habido avances aún hay mucho por mejorar; es una problemática que desde mi parecer y el de otros varios investigadores que han hablado acerca del tema, está ocasionado retrasos en el desarrollo motriz y psicomotriz de los niños y niñas en sus primeros años de vida; en esta ocasión quiero brindar como una posible solución a la problemática, un MODELO DE ORIENTACIÓN PSICOMOTRIZ para los niños orientado a docentes de básica primaria como una herramienta que fortalezca su praxis pedagógica repercutiendo directamente en el desarrollo de los y las estudiantes en edad escolar.
TRABALHO IMATERIAL: PERSPECTIVAS TEÓRICAS
Authors: Moura Pollyanna Paganoto
Published: September 2024

Este trabalho foi elaborado para apresentar de forma sistemática as teorizações a respeito do trabalho imaterial, que têm se ampliado de forma significativa nas últimas décadas. As impli-cações que estas trazem para a teoria marxista do valor evidenciam a necessidade de se estudar esse tema cujo cerne é a crença na hegemonia de um novo tipo de trabalho no capitalismo: aquele que não produz uma mercadoria palpável, mas resultados intangíveis e impassíveis de mensuração. A teoria do valor trabalho é considerada, assim, defasada e o conhecimento é tido como o novo dinamizador das relações sociais.
MERCOSUL: INTERNACIONALIZAÇÃO EDUCACIONAL E PROFISSIONAL BRASIL – ARGENTINA
Authors: TEODORO Luiz Fernando
Published: September 2024

Com o propósito de discorrer sobre as oportunidades geradas pelo MERCOSUL, em particular, o Acordo de Admissão de Títulos e Graus Universitários para o Exercício de Atividades Acadêmicas nos Estados Partes do Mercosul (1999), em que, em comum acordo, os países membros concordam em acatar localmente diplomas expedidos pelos demais membros sem a necessidade de revalidação. Mais adiante, como desdobramento dessas oportunidades e dos avanços nas relações exteriores entre as nações da América do Sul, principalmente nos últimos quarenta anos, surgiram vantagens econômicas, políticas e, até mesmo, trocas de conhecimentos e aperfeiçoamento de pessoal. Diante disso, neste artigo objetivou-se relatar as experiências de vida e profissional adquiridas dentro de um conjunto de desafios e acertos na busca de aprofundar os conhecimentos e a especialização em uma universidade pública, por meio da oportunidade de estudar em outro país, no caso, a Argentina. A estratégia adotada no desenvolvimento do estudo foi pautada no relato de experiência, mas foi oportuno trazer dados e informações para fundamentar os argumentos apresentados, como exemplos de órgãos oficiais e documentos da Argentina e do Brasil, oriundos do Ministério das Relações Exteriores e do próprio Mercosul. Dessa forma, os resultados obtidos demonstram ser vantajosa a realização de estudos, especialmente no ensino superior, no país em questão. Essa experiência culminou em palestras como estratégia para contribuir com outros interessados, expondo a vivência na Argentina, propiciada especialmente pelo aprofundamento da internacionalização trazido tanto pelo Mercado Comum do Sul quanto pelo fortalecimento, ao longo dos anos, das relações bilaterais entre Argentina e Brasil.
Application of Virtual Reality (VR) in Health, Safety and Environment Subject for Fire Exit Training Module
Authors: Jamaludin Nabila Farhana , Shamsuddin Rashid , Mohd Nor Nur Amalina , Sedek Siti Farahin , Hadipornama Muhammad Fairis
Published: September 2024

The significance and extraordinary effectiveness of using VR technology into health, safety, and environment (HSE) education are highlighted. It addresses the many benefits that VR has to offer, especially when it comes to fire exit training, by giving students engaging, involving, and profound learning experiences. The research highlights the seamless incorporation of VR into Health, Safety and Environment (HSE) courses, where VR simulations serve as important tools for teaching crucial evacuation tactics and encouraging students' in-depth understanding and preparedness for actual fire emergencies. This study investigates students' responses regarding their understanding in one of the HSE subject following the implementation of VR technology. Valuable student feedback has been gathered through comprehensive surveys, enabling a continuous process of improvement and refinement for the HSE program. Overall, this research stands as a compelling testament to the profound impact of VR in optimizing learning outcomes and fostering a heightened sense of safety awareness in professional environments.
Smart Herbs IoT
Authors: Noviarini Diena , Usman Osly , Yamani Akhmad
Published: September 2024

This National Collaborative product program activity takes the form of utilizing the Internet of Things as the development of information technology with the concept of intelligent health care which is gradually becoming the latest information technology. This health care uses a series of information technologies as platforms, including the Internet of Things, Big Data, Cloud computing and artificial intelligence to process and transform the plant-based health system so that the application is efficient and comfortable for users. The aim of introducing and familiarizing with the application of information technology using multiple devices such as smartphone devices and personal computers to farmers and herbal plant entrepreneurs, it is hoped that this can improve the conditions and capabilities of processing herbal plants into a profitable business in terms of costs and technological efficiency. The research instrument uses data from the Ministry of Health for statistical data and the sample used is the use of an application prototype. The Research Team has conducted preliminary observations and interviews regarding the need for information technology infrastructure to be implemented in Wanayasa Village, West Java Regency, West Java Province in order to improve the welfare of herbal plant entrepreneurs. The final results of the first year of research will be that training will be held regarding the application of herbal plant information system technology so that farmers and herbal plant entrepreneurs as well as consumers and partner teachers in the field of chemistry and health workers will be able to adapt models of scientific and technological progress into the work and business they undertake published in the indexed journal SINTA 1. In the second year an application prototype will be produced with publication in a Scopus indexed journal so that it will bring benefits, especially for improving the welfare of herbal plant entrepreneurs.
Responsive Web Design for Educational Institution: A Case of ALUMNIAppsapps
Authors: Haron Nor Hafiza , Abd Samad Nor Hafiza , Ahmad Jihadah , Miserom Siti Faizah , Nebeling Michael
Published: September 2024

Alumni means those who have graduated from the university. In order to stay relevant to the university, the university or institution must establish a platform for accessing and retrieving alumni data. The purpose of creating the platform or known as a system is to reduce barriers in terms of data access, especially information regardless of their university, career opportunities and programs developed to strengthen the skills of graduates. This research aims to examine the evolution of the alumni system utilized in higher education institutions. This will incorporate the web development framework that has been employed in the system at one of the private universities in the Klang Valley. This study also examines the system requirements for the alumni of the university. Responsive web has been explored and implemented with aesthetic features, regardless of system requirements. Therefore, the Alumni Portal is developed and is also known as ALUMNIApps. Future studies will utilize dashboard analytics to analyze alumni data, which will be utilized by managers to make significant decisions at the university management level.
Spectral Bipartition via Gap Cut on DNA Sequences
Authors: Goh Hung Lik , Fong Wan Heng , Turaev Sherzod
Published: September 2024

Deoxyribonucleic Acid (DNA) and graph partitioning are two distinct fields of study which can be linked in the structure of biological networks. Graph partitioning has been extensively studied but not its application in the biological field. This research explored on the application of spectral graph partitioning in DNA splicing, aiming to simulate the cleavage of DNA by performing spectral bipartition on DNA sequences in a DNA splicing system. This research incorporates Fiedler theory and algebraic graph theory, which are commonly utilized in network analysis and the analysis of graph connectivity. Some DNA sequences of even length are selected and expressed in graphical representations. The adjacency matrix, Laplacian matrix, and degree matrix are computed from the graphs, as well as the Fiedler value and Fiedler vector associated with the graphs. Gap cut is used as a method of spectral bipartition which produces two partitions of DNA sequence of unequal lengths. The generalizations of gap cut on DNA sequences of even length are provided as lemmas and theorem.
Formulation and Evaluation of Poly Herbal Toothpaste
Authors: A. Shingte Bhagyashree , M. Pawar Shronavi , R. Chavan Paurnima , B. Malave Kajal
Published: September 2024

Herbal toothpaste formulations have gained significant attention due to their potential therapeutic benefits and natural origins. This study aims to prepare and evaluate a polyherbal toothpaste incorporating extracts of ginger, lemon, liquorice, and amla. Wet gum method is one process used to create a herbal toothpaste. Evaluation parameters included physical characteristics like colour, texture, pH, and functional properties like antimicrobial activity, spreadability, foaming property, homogeneity, abrasiveness, whitening effect. Results demonstrated that the herbal toothpaste exhibited desirable physical properties, with a balanced semisolid texture and appealing colour. Moreover, the toothpaste demonstrated notable antimicrobial activity against Candida albicans. This study provides valuable insights into the development of herbal toothpaste formulations enriched with natural extracts, offering promising alternatives for oral care with potential therapeutic benefits.
Design and Fabrication of Smart Washroom Kit with Staircase Trolley
Authors: Yoganandha K. , Sellamailishwaran S. , Shrimanikandan M. , Nishanth R.
Published: September 2024

Hotels and commercial buildings need to maintain standard restroom cleanliness, but the traditional hand-cleaning method takes a lot of time and resources. This study investigates the effectiveness of creative solutions to lessen these difficulties, specifically the combination of a portable pressure washer and a stairway trolley. It usually takes one to one and a half hours and eight hundred to nine hundred liters of water to manually clean eight bathrooms and washrooms. The suggested remedy seeks to streamline this procedure by cutting down on the amount of water and cleaning time. Using a portable pressure washer in conjunction with the staircase trolley setup allows cleaning staff to maximize cleanliness and reduce water usage. The high-pressure stream outperforms conventional techniques in its ability to remove dirt and grime. Additionally, by eliminating the need for numerous trips and heavy lifting, this method allows cleaners to cover multiple floors, improving overall operational efficiency.
A Review on Role of Guava on Diabetes Patients
Authors: A Gayathri. , P Dhanushya.
Published: September 2024

Diabetes mellitus (DM) is a disease that causes abnormal blood glucose levels. This is a globally prevalent metabolic disorder. Diabetes is the fourth biggest cause of death, as reported by the international diabetes federation. The use of herbal products has significantly risen globally in the modern era. Guava, also known as Psidiumguajava L., is a vital tropical food plant with a range of therapeutic uses. It is extensively utilized as a treatment for various illnesses and is easily accessible around the world, particularly in Asian nations. Psidiumguajava contains bioactive constituents including polyphenols, flavonoids, and heteropolysaccharides that are found to be antihyperglycemic properties.
Student perspectives on optimising AI tools to enhance personalised learning in higher education
Authors: Mulaudzi Lebohang , Hamilton Joleen
Published: September 2024

This explanatory qualitative paper discusses students’ recommendations on how AI tools can be optimised to enhance personalised learning in higher education. There are several obstacles to the successful adoption and application of AI technology, two of which are user acceptance and striking a balance between AI-assisted and conventional teaching techniques. The Technology Acceptance Model is used in this research as a theoretical framework to analyse how users accept and use technology. It makes the case that users’ acceptance of technology is mostly influenced by their perceptions of its usefulness and ease of use, which can direct the creation of strategies to enhance the application and efficacy of AI technologies in individualised learning. Open-ended questionnaires were given to 40 University of the Free State students from different faculties as part of a qualitative explanatory case study methodology. The findings reveal that both students and lecturers need to be trained in using AI tools and that there should be a balance between using AI tools and traditional teaching methods to enhance personalised learning in higher education. Considering the findings, the study suggests that institutions and lecturers need to address the challenges posed by AI tools immediately and leverage AI to its full potential in creating an effective and personalised learning environment by establishing clear ethical guidelines and policies for AI usage in higher education and implementing comprehensive AI literacy programs for lecturers and students to ensure they understand the capabilities, limitations, and ethical considerations of AI tools.
Onomastic Controversy on Sepedi and Northern Sotho/Sesotho sa Leboa Language Names: A Forensic Linguistic Perspective
Authors: Rakgogo Tebogo Jacob
Published: September 2024

This article interrogated the existence of Sepedi, Northern Sotho and Sesotho sa Leboa as different language names that are used to designate one and the same language. The researcher’s main intention was to determine if the socio-onomastic dissension that is caused by the aforementioned language names qualifies to be resolved from a legal point of view. Content analysis as a qualitative research approach was used, where the researcher mainly focused on constitutional imperatives, relevant legislations and minutes of the Joint Parliamentary Constitutional Review Committee. The article established that the National Assembly, the Constitutional Court as well as the Department of Justice and Correctional Services have failed in their responsibilities, specifically in resolving the matter under discussion. The article further pronounced that the current defiance and disregard of Section 6(1) of the Constitution of South Africa, Act No. 108 of 1996 was exacerbated by poor monitoring and evaluation, lack of public accountability, poor oversight and confusion of roles and responsibilities between the Pan South African Language Board (PanSALB), the Department of Sport, Arts and Culture and the Commission for the Protection of the Rights of Cultural, Religious and Linguistic Communities. The intervention by a competent court of law is recommended since the matter has been dragging since the finalisation of the Constitution in 1996. The article contributes to scientific knowledge by presenting the perspective that, from a legal point of view, Sepedi is the official language, not Northern Sotho or Sesotho sa Leboa.

Keywords: Sepedi, Northern Sotho, Sesotho sa Leboa, Constitutional Assembly, Interim Constitution, Final Constitution, Constitutional Court, Language and Law, Linguistic Rights, Constitutional Democracy.
The Galactic Center in Color: Measuring Extinction with High-proper-motion Stars
Authors: Haggard Zoë , Ghez Andrea M. , Sakai Shoko , Gautam Abhimat K. , Do Tuan , Lu Jessica R. , Hosek Matthew , Morris Mark R. , Granados Sean
Published: September 2024

The Milky Way’s central parsec is a highly extinguished region with a population of high-proper-motion stars. We have tracked 145 stars for ∼10 yr at wavelengths between 1 and 4 μm to analyze extinction effects in color–magnitude space. Approximately 30% of this sample dims and reddens over the course of years, likely from the motion of sources relative to an inhomogeneous screen of dust. We correct previous measurements of the intrinsic variability fraction for differential extinction effects, resulting in a reduced stellar variability fraction of 34%. The extinction variability subsample shows that the extinguishing material has subarcsecond scales, much smaller variations than previously reported. The observed extinction events imply a typical cross section of 500 au and a density of around 3 × 104 atoms cm−3 for the extinguishing material, which are consistent with measurements of filamentary dust and gas at the Galactic center. Furthermore, given that the stars showing extinction variability tend to be more highly reddened than the rest of the sample, the extinction changes are likely due to material localized to the Galactic center region. We estimate the relative extinction between 1 and 4 μm as

A

H

:

A

K
′

:

A

L
′

=
1.67
±
0.05
:
1
:
0.69
±
0.03

. Our measurement of extinction at longer wavelengths—L’ (3.8 μm)—is inconsistent with recent estimations of the integrated extinction toward the central parsec. One interpretation of this difference is that the dust variations this experiment are sensitive to—which are local to the Galactic center—are dominated by grains of larger radius than the foreground.
Stellar Characterization and Chemical Abundances of Exoplanet-hosting M Dwarfs from APOGEE Spectra: Future JWST Targets
Authors: Melo Edypo , Souto Diogo , Cunha Katia , Smith Verne V. , Wanderley Fábio , Grilo Vinicius , Camara Deusalete , Murta Kely , Hejazi Neda , Crossfield Ian J. M. , Teske Johanna , Luque Rafael , Zhang Michael , Bean Jacob
Published: September 2024

Exoplanets hosting M dwarfs are the best targets to characterize Earth-like or super-Earth planetary atmospheres with the James Webb Space Telescope (JWST). We determine detailed stellar parameters (T
eff, logg, and ξ) and individual abundances of 12 elements for four cool M dwarfs hosting exoplanets TOI-1685, GJ 436, GJ 3470, and TOI-2445, scheduled for future observations by the JWST. The analysis utilizes high-resolution near-infrared spectra from the Sloan Digital Sky Survey IV APOGEE survey between 1.51 and 1.69 μm. Based on 1D LTE plane-parallel models, we find that TOI-2445 is slightly metal poor ([Fe/H] = −0.16 ± 0.09 dex), while TOI-1685, GJ 436, and GJ 3470 are more metal rich ([Fe/H] = 0.06 ± 0.18, 0.10 ± 0.20, and 0.25 ± 0.15 dex, respectively). The derived C/O ratios for TOI-2445, TOI-1685, GJ 436, and GJ 3470 are 0.526 ± 0.027, 0.558 ± 0.097, 0.561 ± 0.029, and 0.638 ± 0.015, respectively. From the results for 28 M dwarfs analyzed homogeneously from Apache Point Observatory Galactic Evolution Experiment (APOGEE) spectra, we find exoplanet-hosting M dwarfs exhibit a C/O abundance ratio approximately 0.01–0.05 higher than those with nondetected exoplanets, at limits of a statistically significant offset. A linear regression of the [Fe/H] versus C/O distribution reveals a noticeable difference in the angular coefficient between FGK dwarfs (0.27) and M dwarfs (0.13). Assuming our abundance ratios of Ca/Mg, Si/Mg, Al/Mg, and Fe/Mg, we determine a mass of

3.276

−
0.419

+
0.448

M
⊕ for TOI-2445 b, which has a density (6.793

−
0.099

+
0.005

g cm−3) and core mass fraction (0.329

−
0.049

+
0.028

) very similar to Earth’s. We also present an atlas of 113 well-defined spectral lines to analyze M dwarfs in the H band and a comprehensive evaluation of uncertainties from variations in the atmospheric parameters, signal-to-noise ratio, and pseudocontinuum.
Fundamental Tests of White Dwarf Cooling Physics with Wide Binaries
Authors: Barrientos Manuel , Kilic Mukremin , Bergeron Pierre , Blouin Simon , Brown Warren R. , Andrews Jeff J.
Published: September 2024

We present follow-up spectroscopy and a detailed model atmosphere analysis of 29 wide double white dwarfs, including eight systems with a crystallized C/O core member. We use the state-of-the-art evolutionary models to constrain the physical parameters of each star, including the total age. Assuming that the members of wide binaries are coeval, any age difference between the binary members can be used to test the cooling physics for white dwarf stars, including potential delays due to crystallization and 22Ne distillation. We use our control sample of 14 wide binaries with noncrystallized members to show that this method works well; the control sample shows an age difference of only ΔAge = −0.03 ± 0.15 Gyr between its members. For the eight crystallized C/O core systems we find a cooling anomaly of ΔAge =

1.13

−
1.07

+
1.20

Gyr. Even though our results are consistent with a small additional cooling delay (∼1 Gyr) from 22Ne distillation and other neutron-rich impurities, the large uncertainties make this result not statistically significant. Nevertheless, we rule out cooling delays longer than 3.6 Gyr at the 99.7% (3σ) confidence level for 0.6–0.9 M
⊙ white dwarfs. Further progress requires larger samples of wide binaries with crystallized massive white dwarf members. We provide a list of subgiant + white dwarf binaries that could be used for this purpose in the future.
The Detection Prospect of the Counter Jet Radiation in the Late Afterglow of GRB 170817A
Authors: Li Jia-Ning , Wang Yi-Ying , Wang Yun , Jin Zhi-Ping , Covino Stefano , Fan Yi-Zhong
Published: September 2024

The central engine of a gamma-ray burst (GRB) is widely believed to launch a pair of oppositely moving jets, i.e., the forward jet moving toward us and the counter jet regressing away. The forward jet generates the radiation typically observed in GRBs, while the counter jet has not been detected yet due to its dimness. GRB 170817A, a short burst associated with a binary neutron star merger event, is a nearby event (z = 0.0097) with an off-axis structured energetic forward jet and hence probably the most suitable target for searching the counter jet radiation. Assuming the same properties for the forward and counter jet components as well as the shock parameters, the fit to the multiwavelength afterglow emission of GRB 170817A suggests a peak time ∼quite a few ×103 day of the counter jet radiation, but the detection prospect of this new component is not promising. Anyhow, if the shock parameters (ϵ
e and ϵ
B) of the counter jet component are (a few times) higher than that of the forward shock, e.g., the posterior results of the magnetic energy fraction of the forward shock and the counter jet are

log

10

ϵ

B

=
−

4.23

−
0.69

+
1.42

and

log

1
0

ϵ

B
,
cj

=
−

3.65

−
2.11

+
3.06

, respectively, as still allowed by the current data, the counter jet afterglow emission will be enhanced and hence may be detected. A few hours of exposure by JWST in the F356W band will stringently test such a scenario.
Direct Imaging of a Prolonged Plasma/Current Sheet and Quasiperiodic Magnetic Reconnection on the Sun
Authors: Kumar Pankaj , Karpen Judith T. , Yurchyshyn Vasyl , DeVore C. Richard , Antiochos Spiro K.
Published: September 2024

Magnetic reconnection is widely believed to be the fundamental process in the solar atmosphere that underlies magnetic energy release and particle acceleration. This process is responsible for the onset of solar flares, coronal mass ejections, and other explosive events (e.g., jets). Here, we report direct imaging of a prolonged plasma/current sheet along with quasiperiodic magnetic reconnection in the solar corona using ultra-high-resolution observations from the 1.6 m Goode Solar Telescope at the Big Bear Solar Observatory and the Solar Dynamics Observatory/Atmospheric Imaging Assembly. The current sheet appeared near a null point in the fan–spine topology and persisted over an extended period (≈20 hr). The length and apparent width of the current sheet were about 6″ and 2″, respectively, and the plasma temperature was ≈10–20 MK. We observed quasiperiodic plasma inflows and outflows (bidirectional jets with plasmoids) at the reconnection site/current sheet. Furthermore, quasiperiodic reconnection at the long-lasting current sheet produced recurrent eruptions (small flares and jets) and contributed significantly to the recurrent impulsive heating of the active region. Direct imaging of a plasma/current sheet and recurrent null-point reconnection for such an extended period has not been reported previously. These unprecedented observations provide compelling evidence that supports the universal model for solar eruptions (i.e., the breakout model) and have implications for impulsive heating of active regions by recurrent reconnection near null points. The prolonged and sustained reconnection for about 20 hr at the breakout current sheet provides new insights into the dynamics and energy release processes in the solar corona.