bluuebunny/crossref_metadata_2025 huggingface dataset:
IMPLEMENTASI PENGENDALIAN KUALITAS PROSES PEMBUATAN PIPA PVC D 4” DENGAN METODE SIX SIGMA
Authors: Hadi Paino , Suwaryo Nugroho  , Mulyono Kristanto
Published: May 2021

Permasalahan yang dihadapi oleh PT. OPQ di proses produksinya berkaitan dengan tingkat cacat produksi yang relatif tinggi sehingga menyebabkan biaya produksi meningkat dan tidak kompetitif. Penelitian ini bertujuan untuk mencari akar permasalahan kualitas yang terjadi pada proses pembuatan pipa PVC 4” dengan menggunakan metode DMAIC (define, measure, analyze, improve, control) yang digunakan untuk mengurangi jumlah cacat pada produk pipa PVC D 4”. Dari hasil perhitungan didapatkan nilai DPMO (defect per million opportunity) sebesar 61.614, dengan level sigma 3,05 yang mengindikasikan sigma level yang masih rendah dan terdapat tiga jenis defect yaitu bintik (75,7%), secret (21,0%), dan mop hangus/penyok (3,4%). Secara pareto cacat bintik memberikan kontribusi terhadap masalah kualitas yang terbesar dibandingkan dengan jenis cacat-cacat yang lain. Penyebab cacat bintik ini disebabkan oleh alat penyemprot sisa serbuk potongan pipa yang terdapat pada mesin belling tidak berfungsi dengan maksimal. Untuk mengatasi permasalahan tersebut maka dibuat beberapa usulan perbaikan yang meliputi memodifikasi mesin belling, pembuatan poin pengecekan proses pencetakan, check sheet pemeriksaan kebersihan, check sheet harian maintenance untuk melakukan perawatan dan juga pemantauan kondisi alat penyemprot. Dari hasil implementasi perbaikan yang dilakukan terdapat peningkatan kualitas hasil produksi produk tersebut dengan adanya indikasi peningkatan level sigma dari 3.05σ Ke 4.08σ
Interrelasi Masyarakat Lokal dengan Cagar Budaya
Authors: Paharizal Rizal
Published: May 2021

Bangunan Cagar Budaya yang ada di Kawasan Cagar Budaya didiami dan dimanfaatkan oleh masyarakat untuk tempat tinggal, kegiatan ekonomi, sosial dan budaya. Bahkan secara turun temurun mereka tinggal di sana tersebut, hal inilah yang membuat sikap, pemaknaan dan ikatan yang sangat kuat antara masyarakat dengan peninggal sejarah yang mereka tempati. Masyarakat memandang bahwa tinggal di sekitar Kawasan Cagar Budaya akan prinsif xtata xurip, xtata xkrama, dan xtata xlaku mereka dalam kehidupan sehari-harinya. Untuk menjaga kelestarian budaya di sekitar Kawasan tersebut, munculah mitos yang mempengaruhi perilaku masyarakat agar bersikap jujur dan menjaga peninggalan sejarah dan budaya. Namun sikap, pemaknaan dan pandangan masyarakat yang tinggal di Kawasan Malioboro, Ndalem Kraton dan Krapyak sangat berbeda terhap Kawasan Cagar Budaya dan Bangunan Cagar Budaya
COMPARISON OF THE PARENTERAL AND ORAL VITAMIN D SUPPLEMENTATION IN THE TREATMENT OF NUTRITIONAL RICKETS IN TERMS OF MEAN CHANGE IN SERUM CALCIUM, PHOSPHORUS, AND ALKALINE PHOSPHATASE
Authors: Nisar Khan Sajid  , Sumaira Tehseen  , Tahir Mehmood  , Tanveer Ahmed  , Ramsha Abbas  , Saeed Ahmed
Published: May 2021

ABSTRACT: 

BACKGROUND & OBJECTIVE: Rickets is a common presentation on the pediatric floor, with nutritional rickets being the cause of leading significant morbidity, disability, especially in the developing countries of the world. The objective is to compare the efficacy of parenteral and oral vitamin D supplementation in the treatment of nutritional rickets

 METHODOLOGY: This comparative interventional, prospective analysis was conducted at Aziz Fatimah Hospital Faisalabad (1-1-2017 to 30-6-2017) outdoor patients divided into parenteral and oral groups. All of the outcome variables were measured at baseline and one month after treatment.

RESULTS: In this study, mean age was calculated as 2.12 + 0.76 years and 2.15+0.77 in parental and oral groups respectively. 49.29% (n=69) and 45%(n=63) were male and 50.71%(n=71) and 55% (n=77) were female respectively in both groups.  At baseline, serum calcium was 8.68 + 0.35 and 8.71 + 0.37 (p=0.62) serum phosphorus was 3.92 + 9.22 and 3.84 + 0.20 (p=0.03), and serum alkaline phosphatase was 230.01 + 13.09 and 228.89 + 13.80 (p=0.48) in parenteral and oral groups respectively. After treatment the mean change seen in serum calcium was 1.14 + 0.26 and 0.72 + 0.19 (p=0.001), serum phosphorus was 1.42 + 0.33 and 0.71 + 0.26 (p=0.001), serum Alkaline phosphatase was 79.48 + 14.84 and 23.65 + 12.21 (p=0.001) in parenteral and oral groups respectively.

CONCLUSION:  We concluded that the parenteral route for vitamin. D supplementation is significantly better than the oral route in treating nutritional rickets in terms of mean change in serum calcium, serum phosphorus, and serum alkaline phosphatase.
Analysis of the Effect of Psychological Factors on Consumer Decisions for Purchase of Tribun Manado News in Manado City
Authors: Nurgianto Budi , Worang Fredrik G. , Lumanauw Bode
Published: May 2021

This type of research is research conducted using the Multiple Linear Regression
method to explain the direct and indirect relationship as well as simultaneously and
partially psychological factors from the variables of Motivation, Perception,
Learning, Beliefs, and Attitudes Toward Consumer Decisions to Buy the Manado
Tribune newspaper in Manado City, North Sulawesi. The research object chosen
was the Manado Tribune Daily Newspaper with a sample of 120 respondents. Data
analysis techniques with the help of SPSS v.22.0 software for Windows. The results
showed that motivation (X1) has a significant effect on Purchasing Decisions (Y).
Perception (X2) has a substantial effect on Purchasing Decisions (Y), Learning
(X3) has a significant effect on Purchasing Decisions (Y), Belief (X4) has no
significant effect on Purchasing Decisions (Y) ), and Attitude (X5) has a positive
and significant effect on Purchasing Decisions (Y). Simultaneously all X variables
have a significant effect on Purchasing Decisions (Y).
Pengaruh Collaborative Skills dan Kompetensi Pedagogik Guru Terhadap Kinerja Siswa Sekolah Dasar di Gugus 10 Kecamatan Pamulang
Authors: Irnaningsih Sri , Kusmawan Udan , Fatmasari Rhini
Published: May 2021

Collaborative skills merupakan kompetensi atau keahlian yang harus dimiliki oleh
seseorang di abad 21. Sementara itu kompetensi pedagogik merupakan salah satu kompetensi yang wajib dikuasai oleh seorang guru berkenaan dengan karakteristik peserta didik dilihat dari berbagai aspek fisik, moral, sosial, kultural, emosional, dan intelektual. Oleh karena itu diharapkan kedua hal ini dapat berpengaruh langsung terhadap kinerja siswa. Collaborative skills dan kompetensi pedagogik guru dapat mempengaruhi peningkatan kinerja siswa. Oleh karena itu penelitian ini bertujuan untuk: (1) Mengetahui pengaruh collaborative skills terhadap kinerja siswa; (2) Mengetahui pengaruh
kompetensi pedagogik guru terhadap kinerja siswa; dan (3) Mengetahui pengaruh antara collaborative skills dan kompetensi pedagogik guru terhadap kinerja siswa Sekolah Dasar di Gugus 10 Kecamatan Pamulang. Penelitian ini termasuk jenis penelitian deskriptif kuantitatif. Sampel dalam penelitian ini menggunakan metode Purposive Sampling sehingga menghasilkan jumlah sampel sebanyak 48 orang. Alat pengumpul data yang digunakan pada penelitian ini adalah kuesioner. Teknik analisa yang digunakan adalah metode regresi linier berganda. Hasil deskripsi pada penelitian ini menunjukkan bahwa secara parsial (uji t): (1) variabel collaborative skills (X1) berpengaruh terhadap kinerja
siswa (Y) dengan nilai thitung = 2,233 atau 22,33 % lebih besar dibandingkan dengan ttabel = 2,012. Artinya, bahwa variabel collaborative skills berpengaruh secara signifikan terhadap kinerja siswa. (2) Variabel kompetensi pedagogik
guru berpengaruh terhadap kinerja siswa (Y) dengan nilai t hitung= 4,239 atau 42,39 % lebih besar dari ttabel = 2,012. (3) Hasil uji hipotesis secara simultan (uji F) collaborative skills dan kompetensi pedagogik guru secara bersama-sama berpengaruh terhadap kinerja siswa dengan nilai Fhitung lebih besar dari Ftabel sebesar 3,20 atau 17, 058 > 3,20. Koefisien determinasi (adjused 𝑅2) 0,431 atau 43,1%, dan sisanya sebesar 56,9% merupakan kontribusi variabel bebas lainnya.
The Work Creation Law Legislation Process
Authors: Bapa Petrus Yakobus , HS Efrizal , Mau Hedwig Adianto , Sinaulan Ramlani Lina
Published: May 2021

Problem hukum termuat dalam proses pembentukan Pembentukan Undang-
Undang Republik Indonesia Nomor 11 Tahun 2020 Tentang Cipta Kerja. Kritik
dari masyarakat bermunculan pasca draft rencana undang-undang itu diusulkan ke
Dewan Perwakilan Rakyat dan telah diundangkan, karena ada beberapa
kekeliruan didalam proses pembentukan. Penelitian ini akan mengkaji proses
pembentukan Undang-Undang Cipta Kerja dilihat dari Asas-Asas Pembentukan
Peraturan Perundang-undangan Yang Baik sebagaimana dimaksud dalam
Undang-Undang Republik Indonesia Nomor 12 Tahun 2011 tentang Pembentukan
Peraturan Perundang-undangan. Adapun metode yang digunakan adalah normatif
dan pendekatan kasus. Hasil penelitian ditemukan dalam proses pembentukan
Undang-Undang Cipta Kerja tidak sesuai dengan asas-asas sebagaimana diatur
dalam undang-undang Undang-Undang Republik Indonesia Nomor 12 Tahun
2011 tentang Pembentukan Peraturan Perundang-undangan.
An Evaluation of ‘Get Smart’ English Language Textbook from the Perspectives of English Teachers
Authors: Takal Ghazi Mohammad , Planisamay Thilashiny , Ibrahim Gani Nur Anisa Binti , Peter Clara Vellangani , Rahmat Abdul
Published: May 2021

This study aimed to evaluate Get Smart year three ELT textbook. A mixed method
design of quantitative questionnaires and qualitative interviews was used. Thirtyeight ESL lecturers from primary schools in Malaysia have been studied for their perspectives on Get Smart textbook. The quantitative questionnaires were analyzed for descriptive statistics and interviews were analyzed thematically. The findings from both questionnaire and interviews showed that Get Smart is one of the most useful books for ELT in primary schools in Malaysia. However, there were some
parts which need to be improved such as the lack of creativity in illustrations,
challenging vocabulary, the social and cultural mismatch, use of difficult words in
grammar explanations, lack of sentence and paragraph structures in the writing part. These findings show that Get Smart textbook is suitable but still there are some parts that need improvement.
NT DISET 76 - Chances de Óbito por Covid-19 Entre Os Trabalhadores Formais: Evidências do Estado do Rio de Janeiro
Authors: De Negri Fernanda , Galliez Rafael M. , Miranda Pedro , Koeller Priscila , Zucoloto Graziela , Farias Claudio. M. de , Costa Joana , Travassos Guilherme H. , Medronho Roberto de A.
Published: May 2021

Esta nota técnica tem o objetivo de realizar uma análise sobre o perfil socioeconômico da população que teve confirmada a infecção pela Covid-19 no estado do Rio de Janeiro e investigar em que medida determinadas características socioeconômicas afetam as chances de morrer da doença. Para isso, serão utilizadas informações socioeconômicas individualizadas disponíveis para o conjunto dos trabalhadores formais do estado.
Artabotrys pachypetalus (Annonaceae), a new species from China
Authors: Xue Bine , Wang Gang-Tao , Zhou Xin-Xin , Huang Yi , Tong Yi , Li Yongquan , Chen Junhao
Published: May 2021

Artabotrys pachypetalussp. nov.is described from Guangdong, Guangxi, Guizhou, Hunan and Jiangxi in China. A detailed description, distribution data, along with a color plate and a line drawing are provided. In China, specimens representing this species were formerly misidentified asA. multiflorusorA. hongkongensis(=A. blumei).Artabotrys blumeitypically has a single flower per inflorescence, whereas bothArtabotrys pachypetalusandA. multiflorushave multiple flowers per inflorescence. In addition,A. pachypetalusis readily distinguished fromA. multiflorusin having thicker and shorter petals, and connivent and somewhat trigonal or terete inner petal blades.Artabotrys pachypetalusis most similar toA. punctulatusbecause both have multi-flowered inflorescences and similar petal length, butA. pachypetalusdiffers in having cream petalsin vivo, connivent inner petal blades, and a short, raised rim above the inner petal claw.Artabotrys multiflorusshould be excluded from the flora of China because none of the Chinese specimens ofArtabotryscollected so far fall within the variation ofA. multiflorus.
La question des dépôts pétroliers au Cameroun : enjeux économiques et impérialistes (1947-1952)
Authors: Pokam Kamdem Moïse Williams
Published: May 2021

Durant la Seconde Guerre mondiale, les compagnies pétrolières anglo-saxonnes (Socony Vacuum, Texas, Atlantic et Shell) avaient réussi à augmenter de façon substantielle leurs parts de marché dans les territoires français d’Afrique. La Compagnie Française de Pétroles (CFP) réagit à cette percée à partir de 1947. Une bataille commerciale et diplomatique pour la construction et le contrôle des dépôts pétroliers dans cette région s’engage alors. Douala, principal port du Cameroun, constitue l’un des enjeux majeurs de cette confrontation. L’objectif de cet article est de retracer l’émergence des activités d’entreposage de produits pétroliers au Cameroun, en replaçant toutefois cette question dans le contexte global de l’empire français d’Afrique après la guerre de 1939-1945. Il s’appuie sur des sources d’archives camerounaises et françaises.
Toute phrase suppose un sujet, toute traduction, un choix !
Authors: Rădulescu Anda
Published: May 2021

Le chapitre XXII du livre Versus : la version réfléchie. Des signes au texte (2004) de Michel Ballard est le point de départ de notre réflexion. La question que nous nous posons est : le choix du sujet dans une phrase repose-t-il sur une contrainte du système linguistique ou s’agit-il simplement d’un choix de traduction ? En nous appuyant sur une comparaison de la traduction en roumain du roman d’Amélie Nothomb, Métaphysique des tubes (2000), nous avons analysé les contraintes dues au système linguistique roumain (sujet inclus, sujet sous-entendu), les rôles thématiques dans la construction du sujet, la nécessité d’expliciter le sujet pour faciliter la compréhension, la préférence du traducteur Giuliano Sfichi pour les sujets animés et pour les constructions passives. Sauf contraintes du système, le choix du sujet est dicté par l’intention de communication et le point de vue du traducteur.
Fabrication of a Composite Coating by Laser, Nanoparticles Self-Assembly and Electrodeposition
Authors: Lin Ou Chuan , Zhou Ying Luo , Li Jing , Bunyan Virgil
Published: May 2021

In this paper, a composite micromachining process is introduced. By adjusting the surface microstructure, a composite coating with two kinds of materials with different characteristics was fabricated. Carbon steel is used as the substrate material, and laser processing is used to obtain the micro morphology on the substrate surface. nanoSiC particles were selected as one of the coating materials, and the SiC coating was added through the process of micropore induced nanoparticles self-assembly. Ni was selected as another coating material and added by electrodeposition. This processing method can be used to prepare multifunctional surface coating, combining the characteristics of different materials. This work can provide an idea to create more excellent multifunctional surfaces.
A rapid reversed-phase thin layer chromatographic detection protocol for adulteration in some edible fats and oils food formulation
Authors: Olajide Mustapha Aliru , Rashidat Adepoju Adenike , Olugbenga Fadipe Victor
Published: May 2021

The problems of adulteration in the vegetable oil and fat have been the major draw backs in the food products formulation, in spite of the various adulteration detection methods in different applications that have been reported. However, the detection tools that can be fast and reliable for the routine analysis necessitated the current work. The two groups of three different samples: vegetable fat containing sample (Blue Band, Golden Penny, La Prairie Classic) and animal fat containing samples (Kell Salad Cream, Crosse & Blackwell and Nola) was used for the purity check using the reversed phased - thin layer chromatographic (RPTLC) method of analysis were developed. The average Rf ratio of 0.95 and 0.92, found for the vegetable and animal fat groups were reported, respectively. The Rf = 0.03 difference between the two groups indicated the presence of sistosterol (plant sterol) and cholesterol (animal sterol), an improvement over color detection methods to screen oils and fats to ascertain purity.

Keywords: Sistosterol, Cholesterol, Adulteration, Animal fat, Vegetable oil
Analysis of consumer behaviour in a retail drugstore chain in Russia based on the type of consumer loyalty
Authors: Galkina Galina , Gribkova Elena , Pak Tatiana , Bazarkina Olga , Sudarenko Kristina , Kurashov Maxim , Smirnov Alexey
Published: May 2021

Purpose: To identify the consumer loyalty types in a retail segment of the Russian pharmaceutical market.

Methods: A sociological study was conducted in pharmaceutical organisations of various forms of ownership, located in different administrative districts of Moscow (Russian Federation). This was done using a questionnaire developed in advance, and based on literature review. The survey involved 480 respondents selected in a simple random sampling.

Results: All questionnaire filled out by the respondents were considered valid. Analysis of the loyalty parameters obtained during the study are as follows: (1) behavioural (repeated purchases), (2) emotional (subjective opinions and experience, sympathy, respect for the brand, etc) and (3) rational (utility assessment) components (4) consumer satisfaction, (5) the desire to buy again, (6) the ability to switch to competitors. They were allocated to four consumer segments. In the course of the study, one consumer segment identified a type of loyalty that had not been previously reviewed by other authors; therefore, a modified classification of the loyalty types was created. Under this classification, constancy, constancy imaginary, inconstancy, and migratory loyalties can be some types of loyalty. The identified socio-demographic characteristics of the respondents influenced the categorization of the loyalty type.

Conclusion: A modified classification of loyalty types was created which serves as a parameter for segmentation of the respondents into four groups, with well-readable characteristics and the primary trends in making purchases.
Erratum for “Effect of aqueous leaf extract of Thunbergia laurifolia on alcohol-induced liver injury in rats”
Authors: Palipoch Sarawoot , Koomhin Phanit , Punsawad Chuchard , Suwannalert Prasit
Published: May 2021

Purpose: To investigate the antioxidant and anti-inflammatory effects of aqueous leaf extract of T. laurifolia against alcoholic liver injury in rats.

Methods: Male Wistar rats were administered either normal saline, ethanol (EtOH), normal saline with low or high dose T. laurifolia leaf extract (TL-LD or TL-HD), EtOH with TL-LD or EtOH with TL-HD. Blood biochemical indices: hepatic malondialdehyde (MDA) levels, liver histopathology, hepatic cytochrome P450 2E1 (CYP2E1), nicotinamide adenine dinucleotide phosphate (NADPH) oxidase, and proinflammatory cytokines, including interleukin 1 beta (IL-1β) and tumor necrotic factor alpha (TNF-α) mRNA expressions, were determined using standard methods.

Results: The leaf extract of T. Laurifolia decreased hepatic MDA levels, improved liver pathology and down-regulated mRNA expressions of CYP2E1, NADPH oxidase and pro-inflammatory cytokinesin ethanol-treated rats.

Conclusion: These results demonstrate that aqueous extract of T. Laurifolia exerts hepatoprotective effect against alcoholic liver injury through a mechanism involving inhibition of oxidative stress and inflammation.
Morphological evaluation of MDA-MB-231 human breast cancer cells treated with DMEM extract of Turkish propolis
Authors: Uçar Meltem , Değer Orhan
Published: May 2021

Purpose: To evaluate the influence of DMEM extract of Turkish propolis (TP) on the morphology of metastatic MDA-MB-231 cells.

Methods: The cells were incubated with DMEM extract of TP (collected from Trabzon in Turkey) at a dose of 2.5 mg/mL for 72 h. The effect of DMEM extract on proliferation and cytotoxicity of the cells was determined using 3-[4,5-dimethyltiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) and trypan blue exclusion assay. MDA-MB-231 cells incubated with or without extracts were randomly photographed with a camera-coupled inverted microscope. Treated and control MDA-MB-231 cells were classified as monopolar, bipolar or multipolar, and their dimensions measured with an electronic caliper.

Results: Although the extract reduced the proliferation of the cells, the effect was not statistically significant (p < 0.05). Moreover, no cytotoxic effect was observed. Field diameters, process length and cell body diameters of the treated cells were increased by DMEM extract treatment in bipolar and multipolar cell types, but these parameters were decreased in monopolar cell type, although insignificantly (p < 0.05). In addition, the process thickness of treated MDA-MB-231 cells increased insignificantly in all cell types (p < 0.05).

Conclusion: These findings indicate that DMEM extract of TP at a dose of 2.5 mg/mL morphologically suppresses monopolar MDA-MB-231 cells. Future studies would examine the morphological effects of different concentrations of the propolis extract in anti-proliferation, cytotoxicity and morphological investigations in MDA-MB-231 cells.
Obezite Cerrahisinin Kadınlarda İnkontinans Üzerine Etkisi ve Hemşirelik Yaklaşımı
Authors: CİCİ Remziye , KOÇAK Derya Yüksel
Published: May 2021

Obezite, yüksek enerji alımı nedeniyle vücutta aşırı yağ birikimi sonucu gelişmektedir. Dünya Sağlık Örgütü verilerinde dünyada 650 milyonu, ülkemizde de 16 milyonu aşkın kişinin obez olduğu bildirilmektedir. Cinsiyete göre kadınlarda obezite prevalansının erkeklerden daha fazla olduğu görülmektedir. Obez bireylerde inkontinans karın içi basınç artışı nedeni ile gelişmektedir. Üriner inkontinans (UI) “istemsiz idrar kaçırma şikâyeti” olarak tanımlanmaktadır. Yaş, parite, gebelik, doğum şekli, obezite, fiziksel aktivite, diyabet ve nörolojik hastalıklar UI risk faktörleridir. İnkontinans tiplerinin obezite ile ilişkili olduğu ve kadınlarda erkeklere oranla 3-4 kat daha fazla olduğu bildirilmektedir. Obezite cerrahisi inkontinans oranlarını azaltabilmektedir. Ancak cerrahi sonrası tekrarlayan kilo alımına paralel olarak inkontinans oranları tekrar artabilmektedir. Cerrahide başarı oranının artması ve inkontinans gelişiminin önlenmesi için iyi bir hasta bakımı gerekmektedir. Bu nedenle obezite cerrahisinde hemşirelik bakımı çok önemlidir. Hemşireler ameliyat öncesi dönemde hasta değerlendirilmesi, operasyon öncesi hazırlık, mevcut risklerin belirlenmesi, hasta eğitiminde rol alırlar. Ameliyat sırasında ise hemşireler hastanın operasyon için hazırlanması ve pozisyon verilmesi, hasta güvenliğinin ve mahremiyetin sağlanması, komplikasyonların önlenmesinden sorumludur. Ameliyat sonrası dönemde ise hemşireler hastaların yeni yaşam biçimine uyumunu sağlamak, tekrarlayan kilo alımını ve inkontinans gelişimini önlenmede eğitim ve danışmanlık rollerini üstlenmektedir. Ameliyat sonrası dönemde ilk olarak davranış terapileri tercih edilmekte, ameliyat öncesi dönemden itibaren hasta eğitimleri ile bakım desteklenmektedir. Diyet, mesane eğitimi, pelvik taban rehabilitasyonu, biofeedback, vajinal kon uygulaması ve fonksiyonel elektriksel stimülasyon yöntemleri kullanılabilmektedir. Uygun hemşirelik bakımı hastaların yaşayabilecekleri sorunları en aza indirmekte, hastaların uygun hızda kilo vermelerini sağlamakta ve tekrar kilo alımı ve inkontinans gelişimi önlemektedir.
Ortaokul ve Lise Öğrencilerinin Sağlığı Geliştirici ve Koruyucu Davranışlarının İncelenmesi
Authors: BOSTAN AKMEŞE Nalan , GÜÇLÜ Sultan
Published: May 2021

Amaç: Bu araştırma ortaokul ve lise öğrencilerinin sağlığı geliştirici ve koruyucu davranışlarını saptamak amacıyla planlanmıştır.Yöntem: Tanımlayıcı araştırmanın örneklemine Kütahya Merkez İlçesindeki dört okulda okuyan ve çalışmaya katılmayı kabul eden 447 öğrenci dahil edilmiştir. Çalışma verileri “Sosyodemografik Özellikler Veri Formu” ve “Sağlığı Geliştirici ve Koruyucu Davranışlar Ölçeği” ile toplanmıştır. Verilerin analizinde iki ortalama arasındaki farkın önemlilik testi ve tek yönlü varyans analizi kullanılmıştır.Bulgular: Araştırmaya dahil edilen öğrencilerin Sağlığı Geliştirici ve Koruyucu Davranışlar Ölçeği puan ortalaması 76.38±9.43 olarak saptanmış olup, alt boyutları arasında en yüksek puan ortalaması fiziksel (30.00±4.51) ve en düşük puan ortalaması psikososyal (19.89±3.38) olarak belirlenmiştir. Sağlığı geliştirici ve koruyucu davranışlar ölçeği puan ortalaması ortaokul öğrencilerinde 77.66±7.30, lise öğrencilerinde 75.44±10.64’tür. Alt boyutları arasında ise en yüksek olan puan ortalaması ortaokul öğrencilerinde fiziksel (30.12±3.98), lise öğrencilerinde de fiziksel (29.91±4.86) alt boyut olmuştur.Sonuç: Araştırma sonucunda öğrencilerin sağlığı geliştirici ve koruyucu davranışlar ölçeği puan ortalamasının orta düzeyde olduğu belirlenmiştir.
On warning's problem : g (4) < 21
Authors: Balasubramanian R
Published: May 2021

We prove that every natural number is a sum of at most 21 fourth powers of integers. This improves the corresponding result of H. E. Thomas, Jr. where 21 is replaced by 22. Using Vinogradov's version of the Hardy-Littlewood circle method, a careful estimation of the singular series and of the trigonometric sums by means of ideas of Ch'en-Ching Jun leads to the above result.
Some problems of analytic number theory III
Authors: Balasubramanian R , Ramachandra K
Published: May 2021

The main theme of this paper is to systematize the Hardy-Landau $\Omega$ results and the Hardy $\Omega_{\pm}$ results on the divisor problem and the circle problem. The method of ours is general enough to include the abelian group problem and the results of Richert and the later modifications by Warlimont, and in fact theorem 6 of ours is an improvement of their results. All our results are effective as in our earlier paper II with the same title. Some of our results are new.
Mean-value of the Riemann zeta-function and other remarks III
Authors: Ramachandra K
Published: May 2021

The results given in these papers continue the theme developed in part I of this series. In Part III we prove $M(\frac{1}{2})>\!\!\!>_k (\log H_0/q_n)^{k^2}$, where $p_m/q_m$ is the $m$th convergent of the continued fraction expansion of $k$, and $n$ is the unique integer such that $q_nq_{n+1}\geq \log\log H_0 > q_nq_{n-1}$. Section 4 of part III discusses lower bounds of mean values of Titchmarsh series.
A note to a paper by Ramachandra on transctndental numbers
Authors: Ramachandra K , Srinivasan S
Published: May 2021

In this paper, we apply a combinatorial lemma to a well-known result concerning the transcendency of at least one of the numbers $\exp(\alpha_i\beta_j) (i=1, 2, 3; j=1, 2)$, where the complex numbers $\alpha_i,\beta_j$ satisfy linear independence conditions and show that for any $\alpha\neq0$ and any transcendental number $t$, we obtain that at most $\frac{1}{2}+(4N-4+\frac{1}{4})^{1/2}$ of the numbers $\exp(\alpha t^n)~(n=1,2,\ldots,N)$ are algebraic.
Similar statements are given for values of the Weierstrass $\wp$-function and some connections to related results in the literature are discussed.
On the algebraic differential equations satisfied by some elliptic function I
Authors: Chowla P , Chowla S
Published: May 2021

When $a$ is an odd positive integer it is implicit in the work of Jacobi that the functions $Y=\sum_1^{\infty} \sigma_a(n)X^n$ where $\sigma_a (n) = \sum_{d/n} d^a$ (the sum of the $a$th powers of the divisors of $n$) satisfy an algebraic differential equation; i.e., there is a polynomial $T$ not identically $0$, such that $T(X, Y, Y_1, \ldots, Y_m)=0$. When $a=1$ we give a new argument based on Ramanujan that we may take $m= 3$ here.
The number of finite non-isomorphic abelian groups in mean square.
Authors: Ivić Aleksandar
Published: May 2021

Let $\Delta(x)=\sum_{n\leq x}a(n)-\sum_{j=1}^6 c_jx^{1/j}$ denote the error term in the abelian group problem. Using zeta-function methods it is proved that
$$\int_1^X\Delta^2(x)\,dx~<\!\!<~ X^{39/29} \log^2X$$
where the exponent $39/29=1.344827\ldots$ is close to the best possible exponent $4/3$ in this problem.
Srinivasa Ramanujan (The inventor of the circle method) (22-12-1887 to 26-4-1920)
Authors: Ramachandra K
Published: May 2021

Ramanujan's first letter to Hardy states an asymptotic formula for the coefficient of $x^n$ in the expansion of $(\sum_{m=-\infty}^{\infty}(-1)^mx^{m^2})^{-1}$ which can be regarded as the genesis of the circle method. In this paper, we try to give some indication of the possible intuition of Ramanujan in his discovery of the circle method. We discuss briefly the Goldbach, Waring and partition problems. At the end of the paper, there is a brief discussion on Ramanujan's $\tau$ function
Proof of some conjectures on the mean-value of Titchmarsh series I.
Authors: Balasubramanian R , Ramachandra K
Published: May 2021

Let $F(s)$ be a Titchmarsh series, i.e. a kind of Dirichlet series, the coefficients of which are suitably bounded. This notion was introduced by us in an earlier paper where we stated a conjecture and proved certain theorems on the lower bound for $\int_0^H \vert F(it)\vert^k\,dt$, where $k=1$ or $2$. In this paper, better results and a proof of the conjecture are obtained.
On the zeros of a class of generalised Dirichlet series-IX
Authors: Balasubramanian R , Ramachandra K
Published: May 2021

In the present paper, the assumptions on the function $F(s)$ are more restrictive but the conclusions about the zeros are stronger in two respects: the lower bound for $\sigma$ can be taken closer to $\frac{1}{2}-C(\log\log T)(\log T)^{-1}$ and the lower bound for the number of zeros is like $T/\log\log\log T$.
The number of primes in a short interval.
Authors: Shituo Lou , Qi Yao
Published: May 2021

We prove in this paper that for $y=x^{\theta}, \frac{11}{20}<\theta\leq\frac{7}{12}$ and $x$ large enough, we have $0.99\frac{y}{\log x}\leq\pi(x)-\pi(x-y)\leq1.01\frac{y}{\log x}$.
On the zeros of a class of generalised Dirichlet series-XIX
Authors: Ramachandra K
Published: May 2021

In this paper, an alternative and simpler proof of the main general result of Part XVIII is given. The proof is based on the classical van der Corput lemma and Montgomery-Vaughan inequality, and except for these tools the arguments are self-contained.
On the Barban-Davenport-Halberstam theorem : X
Authors: Hooley C
Published: May 2021

We return to the topics of the third and ninth papers of the series, and the main aim is to remove some conditions on the previous results by means of a large-sieve estimate due to H. L. Montgomery.
On some Ramanujan's P-Q Identities
Authors: Madhusudhan H S , Mahadeva Naika M S , Vasuki K R
Published: May 2021

In this paper, we obtain some P-Q eta-function identities of Ramanujan on employing some modular equations in Ramanujan's alternative theory of elliptic functions of signature 4.
On the values of the Riemann zeta-function at rational arguments
Authors: Kanemitsu S , Tanigawa Y , Yoshimoto M
Published: May 2021

In a companion paper, ``On multi Hurwitz-zeta function values at rational arguments, Acta Arith.
{\bf 107} (2003), 45-67'', we obtained a closed form evaluation of Ramanujan's type of the values of the (multiple) Hurwitz zeta-function at rational arguments (with denominator even and numerator odd), which was in turn a vast generalization of D. Klusch's and M. Katsurada's generalization of Ramanujan's formula.
In this paper we shall continue our pursuit, specializing to the Riemann zeta-function, and obtain a closed form evaluation thereof at all rational arguments, with no restriction to the form of the rationals, in the critical strip. This is a complete generalization of the results of the aforementioned two authors. We shall obtain as a byproduct some curious identities among the Riemann zeta-values.
On totally reducible binary forms: II.
Authors: Hooley C
Published: May 2021

Let $f$ be a binary form of degree $l\geq3$, that is, a product of linear forms with integer coefficients. The principal result of this paper is an asymptotic formula of the shape $n^{2/l}(C(f)+O(n^{-\eta_l+\varepsilon}))$ for the number of positive integers not exceeding $n$ that are representable by $f$; here $C(f)>0$ and $\eta_l>0$.
On the Half Line: K Ramachandra.
Authors: Sinha Nilotpal Kanti
Published: May 2021

This is a short biographical note on the life and works of K. Ramachandra, one of the leading mathematicians in the field of analytic number theory in the second half of the twentieth century.
Mathematical Reminiscences: How to Keep the Pot Boiling
Authors: Ramachandra K
Published: May 2021

Analytic number theory deals with the application of analysis, both real and complex, to the study of numbers. It includes primes, transcendental numbers, diophantine equations and other questions. The study of the Riemann zeta-function $\zeta(s)$ is intimately connected with that of primes. \par In this note, edited specially for this volume by K. Srinivas, some problems from a handwritten manuscript of Ramachandra are listed.
On the Galois groups of generalized Laguerre Polynomials
Authors: Laishram Shanta
Published: May 2021

For a positive integer n and a real number α, the generalized Laguerre polynomials are defined by L (α) n (x) = n j=0 (n + α)(n − 1 + α) · · · (j + 1 + α)(−x) j j!(n − j)!. These orthogonal polynomials are solutions to Laguerre's Differential Equation which arises in the treatment of the harmonic oscillator in quantum mechanics. Schur studied these Laguerre polynomials for their interesting algebraic properties. In this short article, it is shown that the Galois groups of Laguerre polynomials L(α)(x) is Sn with α ∈ {±1,±1,±2,±1,±3} except when (α,n) ∈ {(1,2),(−2,11),(2,7)}. The proof is based on ideas of p−adic Newton polygons.
Sieve functions in arithmetic bands
Authors: Coppola Giovanni , Laporta Maurizio
Published: May 2021

An arithmetic function f is a sieve function of range Q, if its Eratosthenes transform g = f * µ is supported in [1, Q]∩N, where g(q) ε q ε , ∀ε > 0. Here, we study the distribution of f over the so-called short arithmetic bands 1≤a≤H {n ∈ (N, 2N ] : n ≡ a (mod q)}, with H = o(N), and give applications to both the correlations and to the so-called weighted Selberg integrals of f , on which we have concentrated our recent research.
A Theorem of Fermat on Congruent Number Curves
Authors: Halbeisen Lorenz , Hungerbühler Norbert
Published: May 2021

A positive integer $A$ is called a \emph{congruent number} if $A$ is the area of a right-angled triangle with three rational sides. Equivalently, $A$ is a \emph{congruent number} if and only if the congruent number curve $y^2 = x^3 − A^2 x$ has a rational point $(x, y) \in {\mathbb{Q}}^2$ with $y \ne 0$. Using a theorem of Fermat, we give an elementary proof for the fact that congruent number curves do not contain rational points of finite order.
An elementary property of correlations
Authors: Coppola Giovanni
Published: May 2021

We study the "shift-Ramanujan expansion" to obtain a formulae for the shifted convolution sum $C_{f,g} (N,a)$ of general functions f, g satisfying Ramanujan Conjecture; here, the shift-Ramanujan expansion is with respect to a shift factor a > 0. Assuming Delange Hypothesis for the correlation, we get the "Ramanujan exact explicit formula", a kind of finite shift-Ramanujan expansion. A noteworthy case is when f = g = Λ, the von Mangoldt function; so $C_{\Lamda, \Lambda} (N, 2k)$, for natural k, corresponds to 2k-twin primes; under the assumption of Delange Hypothesis, we easily obtain the proof of Hardy-Littlewood Conjecture for this case.
Linear forms in logarithms and exponential Diophantine equations
Authors: Tijdeman Rob
Published: May 2021

This paper aims to show two things. Firstly the importance of Alan Baker's work on linear forms in logarithms for the development of the theory of exponential Diophantine equations. Secondly how this theory is the culmination of a series of greater and smaller discoveries.
CONTAMINAÇÃO POR STAPHYLOCOCCUS AUREUS EM CELULARES DE PROFISSIONAIS DA SAÚDE EM UNIDADE DE TERAPIA INTENSIVA
Authors: Santos de Oliveira Rone Felipe , Silva Santos Rafaela , De Brito Brasileiro Santos Gleyce Kelly , Milhome da Costa Farre Anny Giselly , Serafim Santana Ingrede Tatiane , Marques Cavalcante Rafael Ciro
Published: May 2021

Objetivo: isolar e traçar o perfil de resistência de cepas de Staphylococcus isoladas de smartphones de profissionais de saúde da Unidade de Terapia Intensiva em Hospital Universitário. Métodos: estudo experimental, laboratorial e quantitativo. Coletaram-se 27 amostras com swab nas superfícies dos smartphones com tecnologia touchscreen. Colônias típicas de S. aureus em ágar manitol salgado foram submetidas à coloração de Gram, provas da catalase, DNAse e coagulase; após comprovação fenotípica de S. aureus, realizaram-se testes de sensibilidade a antimicrobianos por técnica de difusão em discos. Utilizou-se análise estatística descritiva. Resultados: identificou-se o crescimento em 21 amostras semeadas em ágar manitol salgado. Destas, 100% pertenciam ao gênero Staphylococcus, 28% apresentavam correspondência ao S. aureus a partir de análise fenotípica e 71,5% (15) a estafilococos coagulase-negativa. As principais resistências microbianas detectadas foram à azitromicinna e à eritromicina. Conclusão: smartphones encontram-se colonizados por Staphylococcus sp resistentes, sendo necessárias medidas de controle para esse micro-organismo.
HELAL LOJİSTİK AÇISINDAN TÜRKİYE VE MALEZYA KARŞILAŞTIRMASI VE EKONOMİYE KATKI POTANSİYELİ
Authors: DOĞANER Bükra , FİDAN Yahya
Published: May 2021

Lojistik süreçler, işletmelerin kârlılık sağlaması ve rakipleri karşısında rekabet avantajı kazanması için büyük öneme sahiptir. Büyümek ve uluslararası pazarda söz sahibi olmak isteyen işletmelerin güncel gelişmeleri takip etmesi, müşterilerin taleplerini analiz etmesi ve bu talebe en uygun şekilde cevap vermesi gerekmektedir. Dünya üzerinde hızla büyüyen ve gelecek vadeden sektörlere bakıldığında helal sektörü dikkat çekmektedir. Başta Müslümanların ihtiyaçlarına hitap ediyor olsa da günümüzde sağlıklı ve temiz içerikli olması itibariyle Müslüman olmayan kesim tarafından da helal ürün ve hizmetler tercih edilmektedir.
Amaç: Helal ürünlerin üreticiden müşteriye ulaşıncaya kadar geçtiği aşamalar helal lojistik kavramıyla açıklanmaktadır. Malezya helal lojistik sektöründe yaptıkları çalışmalar ve yatırımlarla dikkat çeken ülke olmaktadır. Malezya’nın sektöre kattıkları diğer ülkeler için de örnek teşkil etmektedir. Türkiye’de ise hem helal sektörü hem de helal lojistik faaliyetlerinin gelişimi çok yenidir. Bu nedenle bu çalışmada helal lojistik açısından Malezya ve Türkiye’deki faaliyetler karşılaştırılarak Türkiye’nin geliştirmesi gereken noktalara değinilmiş ve helal lojistik süreçlerinin Türkiye ekonomisine katkı potansiyeline vurgu yapılması amaçlanmıştır.
Yöntem: Çalışmada konuya bir giriş yapılarak Malezya’da ve Türkiye’de yapılan akademik çalışmalar incelenmiş ve uygulamadaki çalışmalar kıyaslanarak nihayet konunun bütüncül bir değerlendirmesi yapılmıştır.
Bulgular: Helal sektörünün Malezya ve diğer sektörde öncü ülkelerin ekonomilerine katkısı tespit edilmiştir. Türkiye de geç olmadan gerekli yatırımları yaparak sektörde iyi bir yere gelebilecektir.
Özgünlük: Çalışma helal lojistik sektörünü detaylıca ele alması ve Türkiye’deki uygulamalarla kıyaslaması açısından farklılık arz etmektedir.
Az Európai Unió elmélyítésének kulcskérdései : Ismertetés és reflexiók
Authors: Kőrösi István
Published: May 2021

Halmai Péter könyvében az európai integráció elméleti, gazdaságstratégiai és gazdaságpolitikai szempontjait összekapcsolva tárgyalja. A gazdasági és monetáris unió gazdaságtanának új, átfogó elemzését nyújtja. Rámutat, hogy az európai integráció a regionális gazdasági együttműködés mély és széles formája. Feltárja és bizonyítja, hogy a mélység az európai integrációban döntő jelentőségű. Újdonság az elmélyítés fő jellemzőinek elemzése, a mélyintegrációt megalapozó gazdasági mechanizmusok, meghatározó tényezők és az intézményrendszer komplex bemutatása.
Aanpak en behandelingsopties voor congenitale melanocytaire naevi
Authors: VANNESTE A. , GARMYN M. , MORREN M.-A.
Published: May 2021

Management and treatment options in congenital melanocytic nevi

Congenital melanocytic nevi (CMN) are benign collections of nevus cells in the skin. They are present at birth or arise during the first weeks of life. Depending on the size, they appear in 1 in 100 to 500.000 live births.

CMN are associated with a variety of benign conditions such as benign proliferations, certain facial characteristics or subtle endocrine dysfunctions as well as malign developments such as melanoma and neurological complications. The risk for these complications strongly depends on the clinical phenotype.

Magnetic resonance imaging (MRI) has a strong value in estimating the risk of these complications. A normal MRI of the central nervous system results in a lower risk of developing melanoma and neurological complications because of the thorough follow-up and early capture.

Although there are various treatment modalities, a shift to more conservative treatment is seen. Little is known about the long term prognosis after treatment of CMN. This article tries to give a recommendation for treatment and follow-up of CMN based on the current literature.
MORPHOLOGICAL AND ELECTRICAL PROPERTIES OF CDSE THIN FILMS PREPARED BY THERMAL EVAPORATION TECHNIQUE
Authors: ALI Asmaa Natiq Mohammed
Published: May 2021

In this work , CdSe thin films with different thickness (100 and 200) nm have been prepared at RT by thermal evaporation technique on glass substrate under vacuum of 10-5 mbar. These films have been annealed to different annealing temperatures (423,473 and523) K. The morphology structure of the films has been examined using atomic force microscope (AFM) analysis. AFM measurements showed that the average grain size values of CdSe thin films decrease with increasing of annealing temperatures from (RT-523K). While the average grain size values increase with increasing thickness. The electrical properties of these films were studied with different thickness and annealing temperature. The d.c. conductivity for all deposited films decreases with increases of annealing temperatures. The electrical activation energies Ea1 and Ea2 found to decrease with increasing of thicknesses. While increase with increasing of annealing temperatures. From Hall effect result, it is found that the carriers concentration increase with increasing of annealing temperatures. While decrease with increasing of thickness. Hall mobility, drift velocity, carrier life time and mean free path decrease with increasing of thickness and annealing temperatures
Rekonstruksi Kepastian Hukum Terhadap Mahar Tanah dalam Pernikahan Masyarakat Bugis Makassar
Authors: Sudirman Sudirman
Published: May 2021

The focus of this research is the reconstruction legal certainty of land dowries in Makassar Bugis community marriages. The research method in this study uses descriptive qualitative. The findings in this study show that the existence of dowry land has been carried out by the Bugis Makassar people from the past to the present, so that it has become a habit. Although it is not practiced by all Bugis Makassar people. The status of giving dowries for land is often a problem due to the lack of legal certainty when the contract takes place. Authentic evidence such as certificates are still controlled by men, so that the handover is only symbolic. Moreover, the land used as a dowry is still under the control of the male family, and is still actively used by the male party, resulting in uncertainty of ownership. the land is for a wife on the transfer of rights due to dowry land. Until now, there has been no legal certainty that regulates the contracting of the dowry even though the initial evidence has been included in the marriage certificate. So it is very important for legal practitioners to formulate a legal basis for land dowries which are used as land dowries
HOW TO MAKE NATURAL SCIENCE KNOWLEDGE INTERESTING AND SIGNIFICANT IN THE LIFE OF CONTEMPORARY PEOPLE
Authors: Melnik Eleonora
Published: May 2021

Integral-differential style in the understanding of the system of genetic interconnections and dependency between nature and society is considered to be innovative and is use by natural sciences as well as liberal arts, but in school education it is developed rather slowly. We can see the decrease of interest of young people to natural sciences. There are natural questions: Should the teachers nowadays foster the increase of interest to natural sciences among school children? Does the contemporary society need specialists in the sphere of environment: physi-cist, chemist, astronomers, physiologists and others? Perhaps to many of them specialties of natural science sphere seem to be not demanded in the society? We would also like to know the opinion of the teachers and university professors concerning the peculiarities of natural science education of young people in different educational systems. We are interested in your opinion about the selection of the educational content as well as about different techniques and educational methods used by specialists. Is there any considerable shift of interest among the teachers towards techniques of natural sciences education aimed precisely at young peo-ple? How is this phenomena connected with the new generation of standards and task-books in school education? We hope that mentioned above aspects of the system of natural science education will evoke understanding and response among the specialists and point out the ne-cessity of their discussion in our journal.
Key words: natural science education, interest, nature and society.
ANTIBIOTIC SUSCEPTIBILITY OF ESCHERICHIA COLI ISOLATE FROM URINARY TRACT INFECTION OF THALASSEMIC PATIENTS IN THI-QAR PROVINCE
Authors: Abood Yasir OKAB Alaa , B SALIH Manal
Published: May 2021

Escherichia coli (E. coli) is the most common type of pathogen that causes Urinary tract infection disease. It can be presented as a pathogenic or non-pathogenic strain and found not only in the animal but also in the human intestine. This bacterium can cause opportunistic infection when the human host comprised of thalassemia patients or changes the healthy hemostatic flora. This study aimed to analyze the presence of bacteria in thalassemia patients with urinary tract infection. A total of 303 samples were collected during the period from August 2019 to January 2020 from thalassemia patients who suffered from urinary tract infection. The results showed that there were 6.9% of patients infected with E. coli, 2.6% of patients were infected with S. aureus, 0.7% with both Proteus and Klebsiella, while 89.1% of patients had a negative sample for bacteria. Also, the incidence of urinary tract infections in females is higher than in males. Besides, its occurrence in rural areas is higher than in city residents. Moreover, among 16 antibiotics tested to sensitize bacteria to antibiotics, Imipenem showed 100% efficacy on all isolated bacteria. In contrast, Netilmicin showed 80.1% efficacy, Gentamycin 80.1%, and Amikacin 76.2%. Ampicillin, Aztreonam, Amoxicillin-Clavulanic Acid, Tetracycline, and Ticarcillin-Clavulanic Acid, did not show any effectiveness toward the bacteria while other antibiotics showed different activities. Furthermore, the isolated microbes from thalassemia patients were the highest resistance to antibiotics in comparison with other studies, and this antibiotic-resistant may be due to the weakening of the patient's immune status and frequent blood taking and the antibodies it contains.
Editorial Revista Redes N° 50
Authors: Becerra Lucas , Di Bello Mariana , Lalouf Alberto , Romero Lucia , Trentini Florencia
Published: May 2021

Editorial Revista Redes N° 50