bluuebunny/crossref_metadata_2025 huggingface dataset:
In-Situ Growth of Two-Dimensional Gold Nanoclusters on Glass Surface for On-Site Surface-Enhanced Raman Spectroscopic Detection
Authors: Tang Bin , Han Fangyuan , Zhu Liping , Luo Zongchang , Wang Jialin , Xu Zhaodan , Wu Renneng
Published: October 2021

Analytical science has always been calling for simple, fast and ultra-sensitive methods to sense molecules of interest. Surface-Enhanced Raman Spectroscopy (SERS) has drawn much attention as a convenient tool for molecular fingerprint characterization. In addition to sample preparation, the key point of sensitive SERS detection is the preparation of highly reproducible and sensitive SERS substrates. In this paper, 2D gold nanoclusters are grown on surfaces of glass slips using an in-situ cyclic growth method in aqueous solutions to prepare high-quality SERS substrates, whose surface morphology can be effectively modulated by adjusting a few parameters during preparation. Substrates prepared with optimized parameters exhibit high SERS activity, uniform response, and good batch-to-batch reproducibility. Due to their strong absorption in the near-infrared range, the substrates can be combined with a portable Raman spectrometer with 785 nm excitation wavelength to detect traces of dibenzyl disulfide (DBDS), a major source of corrosive sulfur in mineral insulating oil. A detection limit lower than 1 mg/L can be achieved with the aid of a simple sample pretreatment method, representing a promising on-site insulating oil analysis method for electric power industry.
An Evolutionary Conserved Signaling Network Between Mouse and Human Underlies the Differential Osteoskeletal Potential of Frontal and Parietal Calvarial Bones
Authors: Menon Siddharth , Huber Julika , Duldulao Chris , Longaker Michael T. , Quarto Natalina
Published: October 2021

The mammalian calvarial vault is an ancient and highly conserved structure among species, however, the mechanisms governing osteogenesis of the calvarial vault and how they might be conserved across mammalian species remain unclear. The aim of this study was to determine if regional differences in osteogenic potential of the calvarial vault, first described in mice, extend to humans. We derived human frontal and parietal osteoblasts from fetal calvarial tissue, demonstrating enhanced osteogenic potential both in vitro and in vivo of human frontal derived osteoblasts compared to parietal derived osteoblasts. Furthermore, we found shared differential signaling patterns in the canonical WNT, TGF-β, BMP, and FGF pathways previously described in the mouse to govern these regional differences in osteogenic potential. Taken together, our findings unveil evolutionary conserved similarities both at functional and molecular level between the mouse and human calvarial bones, providing further support that studies employing mouse models, are suitable for translational studies to human.
Risk of Bleeding Associated With Antidepressants: Impact of Causality Assessment and Competition Bias on Signal Detection
Authors: Zeiss René , Connemann Bernhard J. , Schönfeldt-Lecuona Carlos , Gahr Maximilian
Published: October 2021

Introduction: It has not yet been possible to demonstrate the well-established increased bleeding risk related to antidepressants (ADs) with methods of pharmacovigilance as disproportionality analysis. As bleeding events related to ADs often occur under comedication with antithrombotics, ADs might not be considered causative of, but merely “linked” with the bleeding event. Therefore, we hypothesized that causality assessment of bleeding events related to ADs and the competitive impact of antithrombotics are factors contributing to the mentioned previous non-findings.

Methods: We performed a case/non-case study based on data from VigiBase™ and calculated reporting odds ratios (RORs) for 25 ADs. We used individual case safety reports (ICSRs) that were differently categorized in the database regarding the type of association between drug and event. Furthermore, we investigated the competitive impact of antithrombotics by comparing RORs calculated with and without ICSRs related to antithrombotics.

Results: Analysis of ICSRs that were categorized as causally associated with ADs resulted in detection of only 2 signals (citalopram and escitalopram; upper gastrointestinal bleeding). Analysis of ICSRs irrespective of the type of association resulted in detection of 8 signals (regarding bleeding in general, gastrointestinal bleeding and upper gastrointestinal bleeding). In our analysis, consideration of ICSRs associated with antithrombotics as competitive substances did not have significant impact on signal detection.

Conclusion: Categorization of the type of association between drug and event may affect quantitative signal detection toward reduced sensitivity. Causality assessment seems to significantly impact signal detection, probably particularly in rare, unknown, or clinically unremarkable adverse drug reactions. ADs appear to increase the bleeding risk considerably, even independent of antithrombotic comedication.
Paradoxes in Borderline Emotional Dysregulation in Adolescence: Influence of Parenting, Stressful Life Events, and Attachment
Authors: Robin Marion , Belbèze Jean , Pham-Scottez Alexandra , Shadili Gérard , Peres Victoire , Silva Jérôme , Corcos Maurice , Speranza Mario
Published: October 2021

Introduction: Borderline personality disorder (BPD) in adolescents is characterized by emotional dysregulation, insecure attachment, a history of stressful life events (SLEs) as well as dysfunctional parent–child interactions. The respective contribution of each of these factors on BPD affective symptoms is not yet clear. The purpose of this study is to assess the distinct impact of parental adversity and SLEs on BPD affective symptoms and the role of attachment and alexithymia in such emotional processes.

Method: This study explored parental dysfunction and SLEs as predictors of affective symptoms of BPD and of attachment insecurity in BPD adolescents (n = 85) and healthy controls (n = 84) aged 13–19 years from the European Research Network on BPD. The links between adversity and BPD symptoms were also investigated by emotional dysregulation assessment, as measured by alexithymia and hopelessness.

Results: Dysfunctional parental interactions were linked to affective symptoms, hopelessness, and anxious attachment in healthy controls but not in BPD. Cumulative SLEs were positively correlated with affective symptoms and avoidant attachment in the control group but negatively correlated with both these variables in BPD. Multivariate regression analysis revealed that, in BPD, affective symptoms were independent of dysfunctional parenting but depended on attachment, whereas in controls, a maternal affectionless control style directly predicted affective symptoms. Moreover, increasing numbers of SLEs reduced affective symptoms in BPD, independently of parental interactions or attachment, and were associated with growing use of operative thinking.

Discussion: BPD patients showed paradoxical emotional reactions: there was no increase of hopelessness and affective symptoms with an increased parental dysfunction, but a decrease in affective symptoms and hopelessness with cumulative SLE. Two pathways arose, one involving attachment as an emotional dysregulation process for parent–child interactions and a second one for SLE, with a more direct pathway to affective symptoms, independent of attachment but dependent on early interactions, and involving alexithymia. In summary, adversity factors have distinct effects in BPD, and attachment is partly accountable for affective symptoms independently of adversity. Our results suggest that in highly insecure conditions, cumulative adversity may produce paradoxical effects, including a lesser expression of affective symptoms and hopelessness.
Tracking Multiple Vehicles Constrained to a Road Network From a UAV with Sparse Visual Measurements
Authors: Moore Jared J. , Bidstrup Craig C. , Peterson Cameron K. , Beard Randal W.
Published: October 2021

Multiple-target tracking algorithms generally operate in the local frame of the sensor and have difficulty with track reallocation when targets move in and out of the sensor field-of-view. This poses a problem when an unmanned aerial vehicle (UAV) is tracking multiple ground targets on a road network larger than its field-of-view. To address this problem, we propose a Rao-Blackwellized Particle Filter (RBPF) to maintain individual target tracks and to perform probabilistic data association when the targets are constrained to a road network. This is particularly useful when a target leaves and then re-enters the UAV’s field-of-view. The RBPF is structured as a particle filter of particle filters. The top level filter handles data association and each of its particles maintains a bank of particle filters to handle target tracking. The tracking particle filters incorporate both positive and negative information when a measurement is received. We implement two path planning controllers, receding horizon and deep reinforcement learning, and compare their ability to improve the certainty for multiple target location estimates. The controllers prioritize paths that reduce each target’s entropy. In addition, we develop an algorithm that computes the upper bound on the filter’s performance, thus facilitating an estimate of the number of UAVs needed to achieve a desired performance threshold.
American Football: Watch Your Head!
Authors: Sarmiento Kelly , Waltzman Dana
Published: October 2021

Head impacts in American football may lead to brain injuries called concussions. To study head impacts in young people who play American football, we collected data using sensors in mouthguards worn by young American football players. The sensors counted the number of hits and bumps to the head (head impacts) that players of American tackle and flag football got during the football season. We found that tackle football players had about 15 times more head impacts during a game or practice than flag football players had, and 23 times more hard head impacts. Learning more about head impacts in young American football players can help scientists find ways to lower the chances of concussions and other injuries. That way, kids can enjoy the benefits of sports while keeping their brains safe.
Proteins, Small Peptides and Other Signaling Molecules Identified as Inconspicuous but Possibly Important Players in Microspores Reprogramming Toward Embryogenesis
Authors: Dubas Ewa , Żur Iwona , Moravčiková Jana , Fodor József , Krzewska Monika , Surówka Ewa , Nowicka Anna , Gerši Zuzana
Published: October 2021

In this review, we describe and integrate the latest knowledge on the signaling role of proteins and peptides in the stress-induced microspore embryogenesis (ME) in some crop plants with agricultural importance (i.e., oilseed rape, tobacco, barley, wheat, rice, triticale, rye). Based on the results received from the most advanced omix analyses, we have selected some inconspicuous but possibly important players in microspores reprogramming toward embryogenic development. We provide an overview of the roles and downstream effect of stress-related proteins (e.g., β-1,3-glucanases, chitinases) and small signaling peptides, especially cysteine—(e.g., glutathione, γ-thionins, rapid alkalinization factor, lipid transfer, phytosulfokine) and glycine-rich peptides and other proteins (e.g., fasciclin-like arabinogalactan protein) on acclimation ability of microspores and the cell wall reconstruction in a context of ME induction and haploids/doubled haploids (DHs) production. Application of these molecules, stimulating the induction and proper development of embryo-like structures and green plant regeneration, brings significant improvement of the effectiveness of DHs procedures and could result in its wider incorporation on a commercial scale. Recent advances in the design and construction of synthetic peptides–mainly cysteine-rich peptides and their derivatives–have accelerated the development of new DNA-free genome-editing techniques. These new systems are evolving incredibly fast and soon will find application in many areas of plant science and breeding.
Screening and Analysis of Anaplasma marginale Tunisian Isolates Reveal the Diversity of lipA Phylogeographic Marker and the Conservation of OmpA Protein Vaccine Candidate
Authors: Belkahia Hanène , Ben Abdallah Meriem , Andolsi Rihab , Selmi Rachid , Zamiti Sayed , Kratou Myriam , Mhadhbi Moez , Darghouth Mohamed Aziz , Messadi Lilia , Ben Said Mourad
Published: October 2021

Bovine anaplasmosis caused byAnaplasma marginaleis a disease responsible for serious animal health problems and great economic losses all over the world. Thereby, the identification ofA. marginaleisolates from various bioclimatic areas in each country, the phylogeographic analysis of these isolates based on the most informative markers, and the evaluation of the most promising candidate antigens are crucial steps in developing effective vaccines against a wide range ofA. marginalestrains. In order to contribute to this challenge, a total of 791 bovine samples from various bioclimatic areas of Tunisia were tested for the occurrence ofA. marginaleDNA throughmsp4gene fragment amplification. Phylogeographic analysis was performed by usinglipAandsucBgene analyses, and the genetic relationship with previously characterizedA. marginaleisolates and strains was analyzed by applying similarity comparison and phylogenetic analysis. To evaluate the conservation of OmpA protein vaccine candidate, almost completeompAnucleotide sequences were also obtained from Tunisian isolates, and various bioinformatics software were used in order to analyze the physicochemical properties and the secondary and tertiary structures of their deduced proteins and to predict their immunodominant epitopes of B and T cells.A. marginaleDNA was detected in 19 bovine samples (2.4%). Risk factor analysis shows that cattle derived from subhumid bioclimatic area were more infected than those that originated from other areas. The analysis oflipAphylogeographic marker indicated a higher diversity of TunisianA. marginaleisolates compared with other available worldwide isolates and strains. Molecular, phylogenetic, and immuno-informatics analyses of the vaccine candidate OmpA protein demonstrated that this antigen and its predicted immunodominant epitopes of B and T cells appear to be highly conserved between Tunisian isolates and compared with isolates from other countries, suggesting that the minimal intraspecific modifications will not affect the potential cross-protective capacity of humoral and cell-mediated immune responses against multipleA. marginaleworldwide strains.
Quantitative and Semi-quantitative Methods for Assessing the Degree of Methylene Blue Staining in Sentinel Lymph Nodes in Dogs
Authors: Ram Ann S. , Matuszewska Kathy , Petrik Jim , Singh Ameet , Oblak Michelle L.
Published: October 2021

Background: To develop a digital algorithm for quantitative assessment of surface methylene blue staining in whole lymph nodes and validate a semi-quantitative visual scoring method for patient-side use.

Methods: Lymph nodes from canine patients with spontaneous tumors undergoing sentinel lymph node mapping were prospectively assessed ex vivo and photographed. Using an open-source computer-based imaging software, an algorithm was developed for quantification of staining based on a signal-to-background ratio. Next, two blinded observers evaluated images and assigned a semi-quantitative visual score based on surface staining (0—no blue stain, 1−1–50% stained, and 2−51–100% stained) and those results were compared to the established quantitative standard.

Results: Forty-three lymph nodes were included. Image analysis successfully quantified blue staining and differentiated from normal lymph node tissue in all cases. Agreement between observers using the Kappa coefficient demonstrated strong agreement (k = 0.8581, p < 0.0001) between semi-quantitative visual scoring and image analysis. There was substantial interobserver and intraobserver agreement for the scoring system (k = 0.7340, p < 0.0001 and k = 0.8983, p < 0.0001, respectively).

Conclusion: A digital algorithm using an open-source software was simple and straightforward to use for quantification of blue staining. The use of a semi-quantitative visual scoring system shows promise for a simple, objective, repeatable assessment of methylene blue staining at the time of surgery. This study demonstrates reliable and repeatable methods for blue staining quantification thereby providing a novel and objective reporting mechanism in scientific research involving sentinel lymph node mapping.
Free Space Strange and Unipolar EM Pulses: Yes or No?
Authors: Popov Nikolay L. , Vinogradov Alexander V.
Published: October 2021

E.G. Bessonov suggested the time integrated strength of an electric field ∫−∞∞E(r,t)dt=SE(r) as a parameter to classify electromagnetic (EM) waves. Since then, this parameter has been studied and used in many works on microwave and laser physics, especially when it comes to unipolar, bipolar and few cycle EM pulses. In this paper, it is shown that SE(r)=0 is an identity for a wide class of free space pulses of finite total energy. This property can be useful in various applications of few cycle radiation and as a benchmark in EM and QED computations.
Volunteering among people with disabilities
Authors: Sukharkova Marina Petrovna
Published: October 2021

In recent years, an increase in the number of volunteers and volunteer programs has been recorded in Russia. The purpose of the article is to explore the potential for participation of people with disabilities in volunteering practices. The empirical basis of the study is interviews with people with disabilities who have had experience as volunteers. We studied the motivation of volunteers with disabilities and the significance of volunteering for this category of people. The article highlights the benefits provided to organizations that recruit people with disabilities as volunteers, as well as the difficulties that these organizations may face. The relevance of studying the experience of participation of people with disabilities in volunteering practices is due to the fact that volunteering for people with disabilities can be considered not only as a means of rehabilitation and a way of acquiring skills for subsequent employment, but also as an opportunity to provide all possible assistance to others in need, thereby changing paradigm on disability.

English version of the article on pp. 396-401 is available at URL: https://panor.ru/articles/volunteering-performed-by-people-with-reduced-capabilities/71486.html
2017, 2018 ve 2021 MEB Yönetici Seçme Görevlendirme Yönetmeliklerinin Yöneticiliğe İlk Kez Görevlendirme Bağlamında Karşılaştırılması
Authors: DİLBAZ Engin , ATIŞ Davut
Published: October 2021

Etkili bir okul yönetimini sağlamak ve okulda bulunan bireyleri belirlenmiş amaçlar doğrultusunda harekete geçirmek için okul yöneticisinin, sahip olduğu yasal gücün yanı sıra teknik, insani ve kavramsal boyutlarda kimi becerilere sahip olması beklenir. Okul yöneticilerinin; liyakate dayalı olarak, nesnel ölçütler aracılığıyla seçilmesi ve görevlendirilmesi etkili bir okul yönetimi açısından bir sorun alanıdır. Bu çalışmanın amacı Millî Eğitim Bakanlığına Bağlı Eğitim Kurumlarına Yönetici Görevlendirme Yönetmeliği (2017), Millî Eğitim Bakanlığı Eğitim Kurumlarına Yönetici Görevlendirme Yönetmeliği (2018) ve Millî Eğitim Bakanlığına Bağlı Eğitim Kurumlarına Yönetici Seçme ve Görevlendirme Yönetmeliği’nin (2021); eğitim kurumu müdürlerinin, müdür başyardımcılarının ve müdür yardımcılarının ilk defa görevlendirilme şartları ile usul ve esaslarını karşılaştırmaktır. Çalışma, doküman analizi türünde bir araştırmadır. Araştırmaya konu edilen üç yönetmelik yöneticiliğe ilk kez görevlendirme bağlamında karşılaştırılmıştır. Verilerin analizi betimsel analiz yöntemiyle gerçekleştirilmiştir. Sonuç olarak yönetmeliklerin; bürokratik sürece hâkim ve teknik yönü ağır basan bir yönetici tipinden öğretimsel lider profilinin öne çıkarıldığı bir anlayışa evrildiği gözlenmektedir. Bunun yanında 2021 yönetmeliğinde yazılı ve sözlü sınav ile değerlendirme formunun oransal ağırlıklarını içeren çok boyutlu bir değerlendirme modelinin görevlendirilmeye esas alındığı belirlenmiştir. Değerlendirmenin çok boyutlu oluşunun, kapsam ve yordama geçerliği ile güvenilirliği olumlu yönde etkileyeceği düşünülmektedir. 2021 yönetmeliğinde görevlendirmede eğitim yönetimi sertifikası şartı getirildiği görülmektedir. Ancak eğitim yönetimi alanında lisansüstü eğitim derecesine sahip adaylara eğitim yönetimi sertifikası konusunda muafiyet getirilmemesi önemli bir eksiklik olarak değerlendirilmektedir. Araştırma sonucunda bulgulara dayalı olarak yönetici görevlendirme konusuna ilişkin yönetici ve öğretmenlerin görüşlerine dayalı nicel ve nitel araştırmalar önerilmektedir.
Absence de l’évêque de Troyes et vacance de l’évêché (1202-1207)
Authors: Saint-Sorny Bruno
Published: October 2021

Die Verwaltung der Diözese von Troyes während der Abwesenheit Bischof Garniers de Traînel (1193-1205), der sich im Jahr 1202 auf den Kreuzzug begab und 1205 in Konstantinopel verstarb, sowie während der Vakanz der beiden folgenden Jahre wird anhand der von Anseau de Traînel, Eudes de Méry und Miles de Saint-Aubin ausgestellten Urkunden untersucht. Diese Personen werden ohne nähere Unterscheidung als Offiziale des Hofs, Ökonomen und vor allem Prokuratoren des Bistums bezeichnet. Die Urkunden wurden in erster Linie im Rahmen der freiwilligen Gerichtsbarkeit ausgestellt und sind in der Regel besiegelt, mit dem persönlichen Siegel der Würdenträger oder jenem des Offizialats. Der Beitrag gelangt zu dem Ergebnis, dass dieses Offizialat vier Jahre früher eingerichtet wurde : Bislang auf 1201 datiert, wurde es durch Garnier tatsächlich bereits 1197 eingerichtet, und zwar im Hinblick auf den Aufbruch zu einem Kreuzzug, der aber nicht stattfand. Diese Zeit bedeutet einen Einschnitt in der bischöflichen Diplomatik von Troyes : Zuvor beschränkte sie sich fast ganz auf Urkunden, die der Bischof ausstellte. Nun kamen in großem Maße Urkunden der Offiziale, Archidiakone und anderen Würdenträger hinzu.
Activities of political agencies and inner organisations of the Communist Party of the Soviet Union (Bolsheviks) to strengthen the Party influence on the Red Army Air Force personnel during a radical change in the World War II East Front
Authors: Lantukhov Sergey S.
Published: October 2021

The article presents the main directions and results of the activities of the political bodies of the Air Force of the Red Army to strengthen the Communist Party influence on servicemen in order to increase the combat readiness of aviation compounds during a fundamental change during the World War II. The measures to improve the organisational structure of the Party organisations, replenishing the ranks of Bolsheviks in the army, a change in the qualitative composition and conduct of political and upbringing work among the party members. During the study, the reasons for the quantitative expansion of the Party layer in the ranks of the Air Force, simplifying the entry into the ranks of the Communists, along with a qualitative change in the composition of the Party series are disclosed. The reorganisation of the Komsomol is considered in detail and its importance during the fundamental change in the World War II. The scientific article is written using the sources of the central archive of the Ministry of Defence of the Russian Federation, some of which has been published for the first time. The study of this problem allows the use of accumulated military experience, which can be used in the face of non-party principle of the modern Armed Forces of Russia.
The Repercussions of Armed Conflict on Food Security in the Republic of Cameroon
Authors: Kaze Tindo
Published: October 2021

Peace and stability are among the most significant conditions capable of guaranteeing food security in all communities in the world. In fact, the constant availability and access to food is largely dependant on the state of peace. Armed conflicts in the world today have seriously affected food security with direct consequence on the economy, health, and standard of living of the affected population. This paper seeks to show how the ongoing armed conflicts in the North West and South West regions of Cameroon between separatist armed groups and Cameroon defence forces have affected food security. It is also argued that sustainable food security is strongly dependent on the degree of peace and security existing in a particular region. As such, effective conflict prevention and resolution can significantly contribute to guaranteeing food security to all communities in the world.
Rancang Bangun Modul Automatic Transfer Switch (ATS) Dengan Menggunakan Programable Logic Controller (PLC) Omron Sysmac CPM2A
Authors: Sola Aprianus , Ruslim Ruslim
Published: October 2021

Sumber listrik utama yang disalurkan dari PLN tidak selamanya hidup atau dapat men-suplai ke konsumen secara terus menerus, suatu saat pasti akan terjadi pemadaman atau adanya perbaikan pada pembangkit. Untuk mengantisipasi dari pemadaman tersebut, maka ada beberapa konsumen PLN yang melengkapi rumah atau perusahaannya dengan pembangkit listrik cadangan yaitu genset. Jika terjadi pemutusan dari suplai PLN, tentunya dibutuhkan peralatan yang berfungsi sebagai pemindah sumber tegangan dari PLN ke genset. Namun demikian pemindah secara manual membutuhkan waktu yang relatif lebih lama. Penelitian ini bertujuan untuk mendesain sebuah ATS berbasis PLC atau yang berfungsi untuk memindahkan sumber tegangan secara otomatis. Dari hasil desain dan implementasi ATS diperoleh bahwa dalam kondisi PLN mati atau hidup tidak diperlukan lagi tenaga operator. Selain itu waktu proses dalam pemindahan sumber tegangan juga lebih singkat.
Perencanaan Penyediaan Daya Listrik Berbasis Tenaga Surya untuk Penerangan Jalan Umum di Kampus Universitas Borneo Tarakan
Authors: Ashariansyah Ashariansyah , Budiman Achmad
Published: October 2021

Lampu penerangan jalan tenaga matahari berbasis LED jenis hi- power yang sangat terang, hemat energi dan tahan lama menggunakan panel surya/solar cell sebagai sumber yang berfungsi menerima sinar matahari yang kemudian diubah menjadi listrik melalui proses photovoltaic. Tulisan ini membahas tentang perencanaan penerangan jalan umum berbasis tenaga surya yang akan di tempatkan di kampus UBT. Untuk perencanaannya memerlukan komponen panel surya yang di antaranya adalah Panel Surya, Modul Surya, Baterai, BateraiCharger, Controller, Inverter, Lampu LED Dan UV LIGHT METER. Penelitian ini mengenai kajian pembangunan PLTS sebagai cadangan daya listrik di daerah Kampus universitas Borneo Tarakan. Hasil yang di peroleh dalam perencanaan Penerangan jalan umum yaitu pengukuran cahaya matahari selama satu minggu. nilai rata-rata pengukuran terbesar sekitar 722 W/m2 dan pengukuran terkecil adalah 678 W/m2. dan menggunakan komponen perangkat pendukung yaitu Modul 200 Wp sebanyak 75 panel surya , beban lampu led sebesar 40 Watt dengan total 103 lampu memiliki total beban led 4.120 Watt , Baterai 100 Ah sebanyak 108 unit dan Regulator baterai sebesar 223,17 A serta inverter yang di gunakan yaitu 7.000 W.
Analisis Pengasutan Motor Induksi Tiga Fasa 15 HP Menggunakan Metode Dol (Direct On Line) Pada PDAM Juwata Laut Tarakan
Authors: Riyanto Sugeng , Sapriadi Andi
Published: October 2021

Motor induksi tiga fasa adalah suatu mesin listrik yang mengubah energi listrik menjadi energi mekanik dengan menggunakan gandengan medan listrik dan mempunyai slip antara medan stator dan medan rotor. Motor induksi merupakan motor yang banyak kita jumpai dalam industri kecil dan besar. Motor jenis ini memiliki beberapa keuntungan diantaranya: konstruksi yang sederhana, kokoh, harga relatif murah dan tidak memerlukan perawatan yang rumit. Pada prinsipnya motor induksi ini dioperasikan pada kecepatan yang konstan, apabila beban berubah maka, kecepatan motor akan berubah. Motor induksi tiga fasa yang dianalisis adalah motor dengan merk TECO 3 PHASE INDUCTION pada pompa intake PDAM daerah Juwata Laut Tarakan dengan daya sebesar 11 kW/15 HP yang menghasilkan arus Start sebesar 22,5721 Ampere, Torsi start sebesar 0,2744 𝑁𝑚, Rugi-rugi tembaga sebesar 611,8580 Watt dan Efisiensinya sebesar 0,94 % . Metode yang digunakan pada motor induksi tiga fasa adalah dengan menggunakan hubung langsung (Direct On Line).
Analisis Ketersediaan Daya dan Keandalan Sistem Jaringan Distribusi di Universitas Borneo Tarakan
Authors: Julianto Patria , Sidebang Julidar
Published: October 2021

Tingkat keandalan merupakan salah satu hal yang vital dalam penyaluran tenaga listrik. Sistem distribusi yang andal akan menjamin tingkat kontinuitas pelayanan pada sistem distribusi. Dalam sistem penyaluran ini harus diperhatikan mengenai penggunaan jenis penghantar, sistem penyalurannya, maupun proteksi atau pengaman dari penyaluran. Tujuan dari penelitian ini adalah untuk menghitung daya yang ada pada sistem jaringan distribusi tegangan rendah di Universitas Borneo Tarakan, dan metode yang digunakan adalah metode deskriptif. Hasil penelitian menunjukkan bahwa sistem jaringan distribusi tegangan rendah di Universitas Borneo Tarakan ada beberapa penyimpangan dalam pembebanan yaitu tidak seimbangnya beban pada tiap gedung, kawat penghantar udara dan tanah sudah memenuhi standar. Ketersediaan daya dan keandalan sistem jaringan distribusi di Universitas Borneo Tarakan terhitung sebesar 0,92409 dan 0,99981. Untuk indeks keandalan sistem distribusi keseluruhan berdasarkan perhitungan SAIFI: 0,2 f/yr, SAIDI: 3 h/yr, CAIDI: 15 h/yr, ASAI: 0,9996 pu, ASUI: 0,00034 pu. Hal ini dapat diartikan bahwa ketersediaan daya dan keandalan jaringan distribusi di Universitas Borneo Tarakan andal.
Pemodelan dan Simulasi Maximum Power Point Tracking Menggunakan Adaptive Neuro Fuzzy Inference System pada Aplikasi Fotovoltaik dengan Konverter Cuk
Authors: Huda Abil
Published: October 2021

Penelitian ini menggunakan metode Adaptive Neuro Fuzzy Inference System (ANFIS) dalam pemodelan Maximum Power Point Tracking (MPPT) untuk mengontrol konverter Cuk sehingga fotovoltaik (PV) menghasilkan daya maksimum.  Sistem ini menggunakan Fotovoltaik 200 W dan konverter Cuk dengan desain teganganterhubung beban. Dari hasil penelitian, PV dapat menghasilkan daya maksimum dengan variasi iradiasi dan temperatur pada kondisi statis. ANFIS dapat bekerja dengan baik dalam menjejak titik daya maksimum atau sebagai kontrol MPPT pada sistem PV terhadap perubahan iradiasi dan temperatur dalam kondisi statis. Akurasi daya PV terhadap daya maksimum pada kondisi variasi iradiasi dan temperatur berada di atas 90%.
ANALISIS EFISIENSI PENGGUNAAN LAMPU HEMAT ENERGI (LHE) DAN BALLAST ELEKTRONIK PADA LAMPU NEON
Authors: Syam Sudirman , Kurniati Sri , Effendi Jauhari
Published: October 2021

Peningkatan pertumbuhan teknologi menyerap banyak energi dan merupakan insiden krisis energi periodik yang sangat menakutkan.  Saat ini, telah terjadi perubahan pola penggunaan lampu biasa untuk menghemat lampu dari ballast konvensional ke ballast elektronik dan lampu hemat energi (LHE). Tujuan penelitian ini adalah menganalisis dan mengevaluasi  penghematan energi listrik dari penggunaan ballast konvensional menjadi ballast elektronik. Hasil penelitian menunjukkan bahwa, penggunaan lampu hemat energi memerlukan biaya awal yang lebih mahal dibandingkan dengan lampu biasa, tetapi dalam operasi sehari-hari menjadi lebih ekonomis sehingga diperoleh penghematan energi antara 20 - 80%. Adanya pola penggantian dari lampu biasa menjadi lampu hemat akan dapat membantu PLN untuk mengurangi energi reaktif sehingga akan mengurangi rugi-rugi energi yang terjadi pada jaringan listrik. Sebagai tambahan, adanya perubahan penggantian ballast konvensional menjadi ballast elektronik akan dapat meningkatkan faktor daya listrik sebesar 55,61%.
On the Level of Budget Security for Schemes of Water Bodies Integrated Use and Protection
Authors:   Krutikova A.V.
Published: October 2021

The paper considers issues of a region’s investment water/economic potential assessment and formation in the process of the Scheme of Water Bodies Integrated Use and Protection implementation. Budgets of water/economic and water/protective measures included into the above Schemes have been compared with potential financial resources to be allocated for these measures; the Kama River basin has been used as an example. The necessity of these resources assessment in development of the Schemes has been validated.
Tritium in the Beloyarsk Reservoir Water during the Period of the Nuclear Power Station Three Blocks Operation
Authors:   Chebotina М.Y.
Published: October 2021

The paper contains results of years-long research of tritium concentration in the cooling pool of I.V. Kurchatov Beloyarsk Nuclear Power Station during the period of three power blocks’ operation. Monitoring was carried out during the period from 1980 to 2003 at the permanent observation points located at the reservoir downstream (near the Nuclear Power Station) and upstream. Limits of the radionuclide concentration fluctuations at different water areas of the Beloyarsk Reservoir have been established and the ways of tritium input from the station to the water body. It has been shown that practically in all cases the tritium concentrations in the Beloyarsk Reservoir water including its upstream exceeds the technogenic background level established for the Urals Region.
Use of Neutron-Activation Analysis for Detection of Rare and Scattered Elements in Some Components of Aquatic Ecosystems (Au as an Example)
Authors:   Ostroumov S.A., Kolesov G.A.
Published: October 2021

In the conditions of laboratory aquatic microcosms it was the first time when data on Au and some other elements concentrations in detritus formed by widely spread aquatic organism species (shellfish Viviparus viviparus, Unio pictorum and macrophytes Ceratophyllum demersum) have been obtained. Measurements have been done by the method of neutron-activating analysis. These experiments have demonstrated once again a significant role of biogenic detritus in conjugation of hydro/biological and geo/chemical processes in aquatic systems. New results add to the previous data on chemical elements content in ecosystems components including aquatic ecosystems. The obtained data can be used in development of the monitoring scientific grounds as well remediation, rehabilitation and restoration of water bodies.
On the Matter of Reservoirs Water Resources Use Management
Authors:   Popov A.N.
Published: October 2021

The paper contains author’s opinion concerning the current system of reservoir water resources use management and the proposals on its improvement.
Geopolitical Aspects of Channel Processes
Authors:   Zavadskiy A.S., Ivanov V.V., Chalov P.S.
Published: October 2021

When using the Far-Eastern Region as a study case the paper deals with the issues of political tensions between neighboring states (Russia and People’s Republic of China) caused by coinciding of state boundaries with rivers. Main forms of negative impact of channel processes that cause reconsideration (demarcation) of the boundary position have been described. The role of water work facilities that influence the river bed regime transformation and, consequently, fairway/state boundary position alteration is being assessed.
Causes and Forecast of Peat Flotation at the Boguchany Reservoir
Authors:   Karpenko L.V.
Published: October 2021

Ecological consequences of peat flotation during flooding the bog areas in Krasnoyarsk Krai caused by filling of the large reservoir of the Boguchany hydro power station in the Angara River valley have been analyzed in this paper. Causes of peat flotation at the Boguchany reservoir have been considered in details. The forecast of areas, volumes and dates of flotation of peat deposits in the reservoir has been given.
Springs of the Iva River Basin, Territory of the City of Perm
Authors:   Kiselyova A.A.
Published: October 2021

Nowadays the issue of small rivers water resources conditions and drinking water supply for the territory of Perm, the major industrial center of the Western Urals, is rather relevant. Within the frameworks of this paper results of investigation of the springs’ conditions and the Iva River/its tributaries water quality have been presented and the assessment of the ecological situation has been made on the grounds of these results. This work won a prize of the Russian National Contest of Water-related Projects among pupils of senior classes -2010 (the second place).
SOLUTION OF PRODUCTION LOCATION PROBLEM WITH UNHOMOGENEOUS TRANSPORTATION COSTS
Authors: Sharshembieva F.K.
Published: October 2021

In the work, an economic and mathematical model is formed for the problem of determining the optimal plan for production, transportation and processing of products according to the criterion of the minimum total costs. The functions that determine the dependence of the cost of manufactured products on the volume of production and the costs of processing products are linear, and the function that determines the dependence of transport costs on the volume of transported products is discontinuous at zero. Sufficient conditions for the applicability of the method of sequential calculations to the formulated problem are proved.
KYRGYZ STORIES OF THE POSTSOVIET PERIOD (ON THE EXAMPLE OF THE CREATION OF A. SASPAYEV)
Authors: Keldibekova Zh.K.
Published: October 2021

The transition of Kyrgyz stories from everyday life writing to a deep and vivid depiction of reality falls on a new stage in the development of the story genre, i.e. for 70 – 80 years of the last century. Young writers come to literature with their own special style, their works have made a significant contribution to the further development of the genre. The qualitative growth of the genre was also facilitated by the organization of special discussions, which at the same time testified to its dynamic development. The contribution of the writer Aman Saspayev to the development of the genre of the story is great. That is why we decided to stop our attention on his creation.
La creación de ficciones o por qué las estatuas no siempre llegan a su destino
Authors: Varela Jorge
Published: October 2021

El presente artículo pretende reproducir y ontextualizar el viaje de varios camiones, cargados con bustos de Durruti, enviados por la CNT-FAI a la Exposición Universal de París de 1937, del que solo se tienen noticias orales. A partir de esa falta de documentación se recurre, en la descripción del viaje a la ficción, para rellenar las lagunas que presenta la propia historia. Por otra parte, se (re)crean también los objetos perdidos durante esa expedición a partir de la iconografía conocida de la época.
Review of the collection of drepanids, epicopeids, and uranids (Lepidoptera: Drepanidae, Epicopeiidae, Uraniidae) of the Museum of Nature of the Vasyl Karazin Kharkiv National University
Authors: Guglya Yu. O.
Published: October 2021

Complete annotated list of drepanids, epicopeids and uranids (Lepidoptera: Drepanidae, Epicopeiidae, Uraniidae) of the collection of Museum of Nature of Vasyl Karazin Kharkiv National University is presented. The material was collected mostly in the territory of Ukraine, Russia, Belarus, Armenia, Azerbaijan, Kazakhstan and Turkmenistan. In addition, several specimens from Germany are there. The collection consists of 438 specimens of 34 species of drepanids, three specimens of one species of epicopeids and six specimens of three species of uranids. The half the number of drepanids and all epicopeids and uranids are the part of the butterflies assemblage of well-known collector A. S. Lisetskyi, that fully deposited in the Museum of Nature of Vasyl Karazin Kharkiv National University.
AN ECONOMIC STUDY OF POST-HARVEST LOSSES FOR WHEAT FARMERS IN IRAQ BAGHDAD GOVERNORATE –CASE STUDY-
Authors: Ali S. H. , Jabara O. K.
Published: October 2021

The research aimed to measure the loss and waste of wheat farms, using exploratory and confirmatory factor analysis. Although, loss has become a frightening reality due to the loss of large quantities of food produced by humans for human consumption, so Iraq possesses material capabilities, natural resources, and human beings, it is not self-sufficient, and the reason is the low yield per dounm of wheat, as the productivity rate ranged to 650 kg / dounm for the period 1990-2019. The one of the most important reasons for the decline in productivity is the loss and waste of wheat of post- harvest. And to identify the most important factors that work to reduce post-harvest wheat losses for wheat farmers at Baghdad, by use exploratory and confirmatory factor analysis. So the results indicated that the most important factors that work to reduce losses are the duration of the crop remaining in the field after harvesting until the date of marketing it to the central silos by exposing the crop to environmental hazards, as well as attacking birds, rodents, stray animal feces, and what mixes of grains with soil. The correlation is positive and strong, at a rate of 97%, and the distance to the silo to which the crop is marketed and the logistical operations associated with it, such as crop transportation vehicles that do not comply with the conditions for the proper transportation of grains, as most of them are without cover and there are gaps and holes in them that facilitate the fall of the grains on the road is 80%, and it has a direct relationship as well. Also farmers could be increase their production without increasing economic resources by preserving wheat from loss and waste of post- harvest.
GENERATIONAL FRAMESHIFTS IN TECHNOLOGY: COMPUTER SCIENCE AND NEUROSURGERY, THE VR USE CASE
Authors: Sharma Chetan , R. Browd Samuel , Sharma Maya
Published: October 2021

The paper provides insights into the emerging field of VR Surgery which is a combination of emerging areas in Computer Science like VR, 5G, and Edge Computing and Medicine areas like Surgery and Education. The data mentioned in the paper relates to 5G growth in the US, Edge Computing demands on the network and the new architectures that will be needed to make such systems work end-to-end.
Un enfoque didáctico para el estudio del algoritmo genético en la estimación de parámetros de modelos matemáticos
Authors: Mármol Martínez María Alejandra , Ibarguen Mondragón Eduardo , Vergel-Ortega Mawency
Published: October 2021

El presente artículo aborda de manera teórica y global los conceptos básicos alrededor de los algoritmos genéticos, el vocabulario propio de los mismos y un breve análisis del tipo de problemas que se pueden abordar empleando este método de búsqueda. Posteriormente presenta de manera muy general los pasos para realizar la implementación de un algoritmo genético en un software, acompañado de un ejemplo práctico donde se explica detalla y didácticamente línea por línea el código empleado en la programación, para resolver un problema puntual. Un aspecto en el que se enfatizó fue la búsqueda de diferentes aplicaciones de este algoritmo ya que esto permite al lector evidenciar el espectro de problemas que se pueden resolver mediante este método de optimización. Además, de obtener ideas en cuanto a la formulación de la función objetivo, la programación del código, la selección del software, la acotación de parámetros entre otros. En conjunto la información contenida en este artículo busca dar al lector una base de partida para la compresión, entendimiento, implementación y aplicación de los algoritmos genéticos.
Determinación del error inducido al usar una relación esfuerzo-deformación lineal en el cálculo del momento de fluencia de una sección de viga de concreto reforzado
Authors: Márquez Peñaranda Jorge Fernando , Vergel Ortega Mawency , Jácome Carrascal José Leonardo
Published: October 2021

Nowadays, the teaching in civil engineering courses related to the analysis and design of reinforced concrete beams subjected to pure bending is based on models that use simplifications to facilitate calculations. When analyzing the plastic capacity of a rectangular section, its yield moment is usually calculated assuming that the stress-strain relationship can be idealized using a straight line. However, the validity of this relationship is only verified when the levels of compressive stress are less than 45% of the compressive strength of concrete f´c. For this reason, it is convenient to make a rigorous review over the convenience of using this simplification at medium and to high stresses close to failure. This work studies how a reinforced concrete section behaves according to the simplified model and compares its results to those obtained when using the function proposed by Hognestad in 1955 (still vigent). Interestingly, as a general conclusion, it can be said that the results predicted by the simplified model fit well respect to those obtained using the greatest mathematical rigor.
Reflexiones hacia la inclusión de estudiantes sordos en la enseñanza de la física: una mirada desde las concepciones del profesorado en ciencias naturales del departamento del Huila.
Authors: Pérez Losada Paula Andrea , Amórtegui Elías Francisco , Mosquera Jonathan Andrés
Published: October 2021

Las ciencias naturales generalmente se conciben como un área difícil, ya sea por los términos científicos que se manejan o por los procedimientos que se deben desarrollar dentro de ella; además, en el caso de la asignatura de Física se considera aparte de compleja, abstracta, por lo que si se les dificulta a los estudiantes oyentes en el caso de los estudiantes sordos aún más. Es por ello que dentro de la Beca – Pasantía de la convocatoria N° 856 del 2019 de Jóvenes Investigadores e Innovadores para el Departamento del Huila, del Ministerio de Ciencia, Tecnología e Innovación, se desarrolló el estudio de las concepciones de los docentes en ejercicio de las ciencias naturales sobre la inclusión de los estudiantes sordos en las clases de física. Se aplicó una investigación mixta con el propósito de analizar concepciones se recolectaron en el cuestionario elaborado en Google Forms. Estas respuestas fueron analizadas por medio de los software Atlas ti y SPPS. Para este artículo se exponen los resultados acerca de las 3 categorías más sobresalientes Planificación De Clases, Prácticas De Laboratorio, Proceso Inclusión.
A pedagogical view about the design of isoxazolyl-penicillins of the ampc betalactamase receptor 1fcm using the docking molecular technique
Authors: Heredia Parra Laura Alejandra , Vigoya Ovalle Edson Armando , Ramírez Valencia Astrid , Peña Prieto Luis Eduardo
Published: October 2021

The present work mainly exposes the result of the search for molecules, derived from the structural changes of the drug Cloxacillin in its phenyl radical, which is chlorinated, likewise, the selection of the pharmacophore group is evidenced, which allowed to specify the aforementioned objective. Secondly, the selected target was beta-lactamase, with 1FCM nomenclature, registered in the database, Protein Data Bank, in the same way, the amino acids involved in non-covalent interactions are found, in this order of ideas, they were raised, 22 molecules that presented an affinity energy lower than -8.0 Kcal/mol, this data stated above, will become the reference value, to postulate 6 molecules that have registered a lower affinity, generated by the Autodock Vina software. To conclude, the structural optimization of the leading drug is given as a result, together with its new interactions in the amino acids LYS64, ASN149, THR313 and SER61.