bluuebunny/crossref_metadata_2025 huggingface dataset:
Increased presence of the invasive, exotic Eurasian Collared-Dove (Streptopelia decaocto) in the Chamela-Cuixmala Biosphere Reserve, Mexico, after hurricane disturbance
Authors: Martínez-Ruíz Marisela , De Labra-Hernández Miguel Ángel
Published: October 2022

Invasive species are a main cause of biodiversity loss, making it important to register their incursion into conserved, protected areas. We evaluated presence of the exotic Eurasian Collared-Dove (Streptopelia decaocto) in and around the Chamela-Cuixmala Biosphere Reserve, Jalisco, after hurricane disturbance. During March to May 2017 and 2018, we carried out 1 km transect surveys at three sites: Chamela Biological Station, Careyes town, and Cuixmala ranch, and conducted observations of the Eurasian Collared-Dove when detected. We also collated records from the eBird database to compare the number of Eurasian Collared-Doves reported before (2010-2015) and after (2016-2020) major hurricane disturbance. We recorded a total of 27 doves over 18 surveys, with the majority of records at the Chamela Biological Station within the reserve. Most sightings were of one dove, but we recorded a group of 4 doves at Chamela in May 2018. Doves spent significantly more time perched around buildings at Chamela in 2018 compared to 2017, and made occasional flights into trees at the dry forest border. The eBird data showed a significant increase in records of the Eurasian Collared-Dove outside the reserve after hurricane disturbance. Our results showed increased presence of the Eurasian Collared-Dove at sites within the biosphere reserve following major hurricane disturbance, possibly due to forest damage creating open-habitat and niche opportunities within the dry forest mosaic. We recommend continued monitoring to restrict establishment of this invasive species in forested areas of the reserve, and evaluate potential impacts on native species.
Nuevos registros del mosquero copetón (Mitrephanes phaeocercus) en la costa central de Veracruz
Authors: Ciprés Chávez Adrián , Córdoba-Cuevas Enya Astrid , Toto-Cobix Jordi
Published: October 2022

El mosquero copetón (Mitrephanes phaeocercus) es un tiránido ampliamente distribuido en las regiones montañosas de México y Centroamérica. La especie reside principalmente en bosques de pino-encino y bosques de niebla, pero se tienen registros en bosques tropicales de menor altitud durante la temporada no reproductiva en el noroeste del Pacífico mexicano. En esta nota describimos la presencia del mosquero copetón fuera de su distribución en la costa central del Golfo de México en la temporada no reproductiva (invierno 2020-2021) en el bosque de manglar del Área Natural Protegida Arroyo Moreno, Veracruz, México. Es fundamental continuar con la investigación y ciencia ciudadana de las aves en los manglares de México para entender su biología, particularmente aquellas registradas fuera de su distribución.
Presencia del Rascón Cara Gris (Rallus limicola) en el sitio Ramsar Río San Pedro-Meoqui, Chihuahua, México
Authors: Loredo Varela Juan Luis , Hernández Escudero Leonardo
Published: October 2022

Reportamos el primer registro del Rascón Cara Gris (Rallus limicola) en el sitio Ramsar Río San Pedro-Meoqui, Chihuahua. Los avistamientos se realizaron en el mes de enero del 2021, durante recorridos sistemáticos de monitoreo de avifauna en el humedal. Adicionalmente, buscamos registros para el Rascón Cara Gris en las plataformas de Naturalista y eBird, lo cual mostró que en el Estado de Chihuahua solo existen cuatro registros con evidencia fotográfica. La especie se encuentra catalogada como Amenazada por la Ley Mexicana, confirmando la relevancia del humedal para sustentar especies en alguna categoría de riesgo.
Partial leucism in the Variable Seedeater (Sporophila corvina) in Costa Rica.
Authors: Villegas Retana Sergio
Published: October 2022

Leucism is the most common plumage aberration recorded in wild birds around the world, but very few records exist for Neotropical wild bird species with black plumage. In this note I describe the first observation of partial leucism in the Variable Seedeater (Sporophila corvina corvina). The observation was made in Suerre, Pococí, Costa Rica, on 26 July 2021. These observations have important conservation implications for wild birds because they may be associated with environmental, populational and nutritional issues. This record adds to other studies of plumage aberration in wild birds of the Neotropics, and contributes to knowledge on the natural history and conservation of this species.
Nest survival of the Snowy Plover Charadrius nivosus at Marismas Nacionales, Nayarit
Authors: Ortega-Solis Lidiana Esther , Galindo-Espinosa Daniel , Figueroa-Esquivel Elsa Margarita , Rosales-Huerta Uki , Cavitt John , Puebla-Olivares Fernando
Published: October 2022

Breeding habitat loss and nest predation are considered the main causes of Snowy Plover (Charadrius nivosus) populations decline worldwide. We evaluated the effects of season, nest age, distance to nearest vegetation patch, distance to nearest body of water, habitat type, and nesting substrate on the daily survival rate of Snowy Plover nests. During 2014-2015, we located 84 nests in Las Garzas-Chahuin-Chihua lagoon in Marismas Nacionales, Nayarit, Mexico. We used MARK software to estimate daily nest survival rate, which was 0.969 (95% CI = 0.95 - 0.97) for both breeding seasons combined, with a 42% finite nesting success. A total of 44 nests (52%) were successful, while 40 (48%) failed. The main causes of nest failure were predation (n = 30; 75% of failed nests) and flooding (n = 9; 22.5% of failed nests); one nest was lost due to unknown causes (2.5%). Daily survival rate increased with nest age and distance from the nearest vegetation patch. By contrast, daily survival rate decreased with the progression of the breeding season; a higher probability of nest success was evident when established early in the breeding season. Our results show the importance of different positive and negative factors influencing nest survival that might be considered as part of conservation strategies.
FATAL IMMORTALITY. THE BLACKSMITH MOTIF IN POLISH FOLKTALES
Authors:   Nicolaus Copernicus University, Zalewska Anna
Published: October 2022

Numerous texts of Slavic folklore, including the folk fairy tale, reflect ideas concerning the demonic properties of non-agricultural professions. These include, in particular, the hero of this analysis, namely the blacksmith. The primary research objective involves illustrating the specificity of the fairy tale image of a blacksmith. The peculiarities of his behaviour, forms of interaction with other characters, the attributes of the craft he mastered, the functions he performs, as well as his posthumous status will be taken into account. The fairy tale image of the blacksmith largely corresponds to his reception in traditional culture, in which he was classified as “stranger among his own” due to his specialized knowledge and skills. Therefore, the protagonist of these considerations practises magic, parleys with impure forces, abuses alcohol, and also excessively strives for material goods. Moreover, he shows a disrespectful attitude towards death, preventing it from fulfilling its duty. Because death is seen as a guarantee of harmony and balance, the blacksmith’s behaviour should be considered particularly dangerous, disruptive to the divine order of the world. A fairy tale blacksmith is characterized by the features of a mythological trickster who uses deception to defeat his opponent or gain access to certain goods. As a fraudster and devilish collaborator gaining earthly wealth through the aid of forces from the beyond, the craftsman fits into the rural image of a condemned sinner, which affects his posthumous status. Variants of the T 330A “Kowal i diabli (Śmierć na gruszy)” («Кузнец и черти (Смерть на груше)»; ATU 330 “The Smith and the Devil”) fairy tale plot were used as the source for the analysis
Çevresel Grafik Tasarımda Okunabilirlik: Afyon Kocatepe Üniversitesi Yerleşkesi Örneği
Authors: ÖZER GÖNÜL Fügen , EROL Ulvi Erhan
Published: October 2022

İnsan ve çevre arasındaki etkileşimi sağlayan okunabilirlik kavramı, günümüzde bilgilerin çoğalması ve giderek kaos yaratmasıyla çok önemli bir konu haline gelmiştir. Bilgiyi daha anlaşılabilir ve algılanabilir bir şekilde sunan çevresel grafik tasarımlar, kuvvetli bir geçerliliğe sahip alt başlıkları olan, disiplinlerarası bir tasarım alanıdır. Bu makalede, okunabilirlik, yönlendirme, bilgilendirme, anlamlandırma, algı ve mekân duygusunu arttırmaya yönelik işlevleri olan çevresel grafik tasarım hakkında incelemelerde bulunulmuş ve örnek bir uygulama ile günlük yaşama ait duyarlı bir yaklaşım getirilmesi amaçlanmıştır. Afyon Kocatepe Üniversitesi yerleşkesinde önemli bir yer tutan tabela tasarımlarının yer alış boyutları, konumları, bir araya gelişleri ile tabelalarda uygulanan renk, tipografi ve uyum özellikleri bu araştırmanın konusunu oluşturmuştur. Bu tasarımlara kullanım özellikleri bakımından analizler yapılarak, çözüm önerileri getirilmiştir. Grafik tasarım disiplininin ilkelerine göre bilgilendirme ve yönlendirme işlevlerini oluştururken, bilgiye ulaşımı kolaylaştıran, görsel bütünlüğü sağlayan, kullanıcıya kendini güvende ve aidiyetlik duygusunu hissettiren Quick Response (QR) kod sistemi, haritalandırma ve Augmented Reality (AR) artırılmış gerçeklik uygulamaları öneri olarak sunulmuştur.
Impacto Educativo y Social de las Prácticas Profesionales desde la Percepción de los estudiantes.
Authors: Espinosa Elizondo Melissa
Published: October 2022

Examina a profundidad los factores que influyen en el desarrollo de la Responsabilidad Social Universitaria y su impacto en el proceso de construcción social estudiantil e internacionalización de la Educación Superior de la Universidad Autónoma de Nuevo León
Lineamientos para el establecimiento de alianzas estratégicas entre la universidad autónoma de nuevo león y el tecnológico de monterrey a través de un protocolo en el área ambiental.
Authors: Barrón Flores Ángel Fabian
Published: October 2022

Identificación de una serie de lineamientos para el desarrollo de un protocolo en materia ambiental para el establecimiento de alianzas estratégicas en el área ambiental entre la Universidad Autónoma de Nuevo León y el Instituto Tecnológico de Estudios Superiores de Monterrey,
Programas de Responsabilidad Social aplicados en las Dependencias Educativas de la Universidad Autónoma de Nuevo León
Authors: Jiménez Contreras Verónica Monserrat
Published: October 2022

Identificar los Programas de Responsabilidad Social que son aplicados en las Dependencias Educativas de la Universidad Autónoma de Nuevo León, a Nivel Preparatorias y Facultades.
Factores de la diplomacia cultural que promueven la imagen de méxico en el exterior
Authors: Laguna Núñez Carlos
Published: October 2022

estudiar la diplomacia cultural mexicana, para Determinar los elementos que promueven la imagen del país en el exterior.
El presagio de la imagen: la mujer que falta
Authors: Martínez Quintanilla María Fernanda
Published: October 2022

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Ab animalibus/Volumen 1
Authors: Rutilo Aguilar Carlos
Published: October 2022

Reseña de la antología Ab animalibus/Volumen 1
Comparison of GFR measurement with [99mTc]-DTPA and clinical methods based on creatinine measurement, in patients over 80 years old
Authors: Maioli Claudio , Mangano Michela , Tagliabue Luca
Published: October 2022

Introduction and aim: The most accurate way of measuring kidney function in GFR. Clinical formulas based on creatinine measurement may be inaccurate mainly in elderly patients (over 80 years of age). In this study we evaluated the accuracy of commonly used clinical formulas by comparing them with a direct measurement with [99mTc]-DTPA ([99mTc]-diethylene-triamine-peracetic acid) in a population of patients aged eighty and older. Material and methods: 47 patients (27 males and 20 females) with an average age of 81.9 ± 1.7 years, 80% already diagnosed with Chronic Kidney Disease (CKD), were investigated. Two plasma samples were collected between 60-90 and 165-190 minutes after the injection of [99mTc]-DTPA and GFR were calculated. Results: When comparing the GFR values obtained from the various formulae by creatinine levels with the GFR value obtained by measuring [99mTc]-DTPA residue, the following concordance values emerged: (1) MDRD: 55.3%, (2) Cockroft-Gault 55.3% (3) CKD-EPI 57.5% (4) BIS-1 51.1%. Conclusion: Our data show a poor correlation between all clinical methods and [99mTc]-DTPA, which remains a gold standard for the direct measurement of GFR.
Medical mystery: Deposition of calcium oxalate and phosphate stones in soft tissues
Authors: Alessandro Capitanini , Brunilda Xhaferi , Vincenzo Miniello , Ophelia Meniconi , Claudia Zullo , Claudia Mannucci , Dritan Curi
Published: October 2022

Calcinosis cutis (CC) [1] is an unusual disorder characterized by calcium-phosphate deposition into cutaneous and subcutaneous tissues. There are five subtypes: dystrophic, metastatic, idiopathic, iatrogenic and calciphylaxis.

Calciphylaxis or calcifying panniculitis is defined as small vessel calcification mainly affecting blood vessels of the dermis and subcutaneous fat. Despite the predominance of cases in patients with ESRD, calciphylaxis can also be found in patients with normal renal function and normal levels of calcium and phosphate. These cases are often referred to as nonuremic calciphylaxis (NUC), a heterogeneous category with several associations. Literature reveals an association with hyperparathyroidism (28%), malignancy (22%), alcoholic liver disease (17%) and connective tissue diseases (11%) while obesity, liver disease, high-serum calcium (Ca) × phosphorus (P) levels, combined therapies of calcium salts with vitamin D, warfarin and corticosteroids have been observed to increase the likelihood of this disease [2]. The lesions in both nonuremic and uremic calciphylaxis tend to be indistinguishable from each other, initially presenting as tender subcutaneous plaques that progress into nonhealing ulcers with overlying black eschar. Skin changes often begin with a livedo reticularis pattern that can progress to livedo racemes and ultimately retiform purpura.

In our clinical case, we describe a patient with multiple risk factors for calciphylaxis, intense widespread calcification (vessels, tendons, joints) and cutaneous calcific stone of calcium and phosphate oxalate not elsewhere described before.
Antibacterial activity of some common species used in indian kitchen and effect of it in combination
Authors: Sabera.Aliasgar Rangwala  , Deepa Mahendra Desai
Published: October 2022

Identification of traditional remedies used in Indian household as antibacterial agent. A study was undertaken to document antibacterial activity of Curcumin. It is the most abundant polyphenol present in the dietary spice turmeric. Turmeric powder, derived from the rhizome of Curcuma longa, which is associated to the Zingberiaceae family, and the antibacterial activity and medicinal properties of ginger extracts derived from zingerber officianale were studied by agar diffusion method and then the combined effect of both this herbal drug in various concentration was studied against gram positive and gram negative organisms.
Food hygiene knowledge, attitude and practices among food handlers in Calabar Municipal, Cross River State, Nigeria
Authors: Ruth Edet Okon  , Aniekanabasi Jonathan Okon  , Simon Alain Inah  , Olajumoke Esther Olanrewaju  , Elizabeth Libuo-Beshel Nji
Published: October 2022

Background: The risk of foodborne diseases increase with poor food handling practices. Unsafe food leads to the spread of diseases which increases morbidity and occasionally mortality, significantly impeding public health. This study was aimed to determine food hygiene knowledge, attitude, and practices among food handlers in Calabar Municipal, Cross River State, Nigeria. Methods: A total of 156 food handlers were randomly selected and interviewed using a structured pretested questionnaire. Direct observation of environment and hygiene practices while handling or serving the food was also done. SPSS version 25 was used for data analysis and testing associations using Chi square test. Results: The finding of the study revealed that majority 135(86.6%) of the food handlers had good knowledge of food safety and hygiene. Most 134(86%) of the respondents also had good level of practice of food hygiene. Majority 118(75.6%) were also found to have good attitude towards food hygiene. but few still had poor practice. The proportion who had good food hygiene practice was higher among handlers with good food hygiene knowledge levels compared to those with poor knowledge levels, (87.3% versus 66.6%) and the difference was statically significant (P =0.002). Moderately sanitary food vending environments were also observed in the study. Conclusion: Good food hygiene practices is associated with good knowledge levels. We recommend health education courses/ workshops for food handlers as a requirement for commencement of food vending business. Continuous monitoring and periodic training is also essential in order to improve knowledge, attitude and practice towards food safety.
Analisis Peran Ganda Single Parent Dalam Pendidikan Anak Di Desa Sukomulyo Manyar Gresik
Authors: Mufidah Lailatul , Hidayati Roziana Ainul
Published: October 2022

The high divorce rate every year in the Gresik area, resulting in many women with single parent status who have multiple roles. Divorce makes the family less qualified and has an impact on the human resources produced, which also decreases. Most children of single parent women have poor quality education. This study aims to analyze how to play a dual role with single parent status in children's education in Sukomulyo Manyar Gresik Village. This type of research is qualitative research. The selection of informants in this study, researchers conducted interviews with 5 (five) single parents, using purposive sampling with several criteria. Data collection techniques used are observation and interviews. Data analysis uses data reduction, data presentation and conclusion drawing. The data validation technique uses member check. The results of this study indicate that someone who carries out multiple roles with single parent status has very little free time with children. Busy parents work all day resulting in less concern for children in learning activities, but it does not reduce the enthusiasm for single parent women to motivate and encourage their children to realize their future. This research contributes to single parents in order to provide knowledge about the dual roles they face in supporting their child's educational development. This research was only conducted on single parent women who play multiple roles in the Village of Sukomulyo Manyar Gresik
Pemetaan Layanan Jasa E-Commerce Di Kota Bandung Menggunakan Metode Multidimensional Scaling
Authors: Mulyati Erna , Hamidin Dini
Published: October 2022

Layanan jasa kurir semakin bersaing dengan populernya belanja online. Penelitian bertujuan memetakan persepsi konsumen terhadap layanan jasa kurir e-commerce di kota Bandung, menggambarkan posisi layanan jasa kurir dari satu kurir dengan perusahaan kurir lainnya berdasarkan kemiripan atribut serta identifikasi dimensi kunci yang mendasari evaluasi konsumen terhadap berbagai atribut sebagai dasar perusahaan kurir dalam meningkatkan daya saing layanannya. Atribut yang digunakan adalah timeliness, quality, accuracy of order, dan order discrepancy handling. Sampel sebanyak 31 responden menggunakan metode purposive sampling, yaitu pengusaha retail di Kota Bandung yang menggunakan jasa kurir QposinAja. Metode yang digunakan Multidimensional Scaling. Hasil penelitian menunjukkan bahwa layanan jasa kurir e-commerce memiliki kemiripan, seperti PT Pos dan layanan jasa kurir lainnya karena berada dalam satu kuadran yang sama di kuadran satu; JNE dan SiCepat berada di kuadran dua. Anter Aja dan Ninja tidak memiliki kemiripan karena keduanya berada di kuadran berbeda. Responden mempersepsikan bahwa PT Pos Indonesia lebih baik baik daripada layanan jasa kurir lain terkait timeliness, accuracy of order, dan order discrepancy handling. Ninja lebih baik daripada layanan jasa kurir lain terkait quality. Berdasarkan penelitian ini diketahui atribut-atribut tersebut berpengaruh kecil terhadap persepsi konsumen untuk berbelanja online sehingga terdapat atribut lain diluar penelitian ini yang sebenarnya mempengaruhi persepsi konsumen dalam memilih jasa kurir.
Ukuran Lot yang Ekonomis pada Model Persediaan Integrasi Pemasok Tunggal dan Pembeli Tunggal
Authors: Dahda Said Salim , Andesta Deny
Published: October 2022

Keunggulan kompetitif sebuah bisnis banyak menjadi bahasan di industri dan akademis. Salah satunya kemampuan memenuhi permintaan dengan jumlah yang tepat, waktu yang tepat dan lokasi yang tepat. Persediaan hadir dalam peningkatan keunggulan kompetitif tersebut menjadi bagian yang terpenting dalam peningkatan kemampuan pemenuhan permintaan produk. Model perencanaan dan pengendalian persediaan klasik seperti EOQ/ EPQ, telah banyak memberikan kontribusi dalam pemenuhan permintaan. Dengan asumsi-asumsi yang membatasi model-model klasik banyak dikembangkan untuk menyesuaikan dengan kondisi dan lingkungan industri. Salah satunya adalah model integrasi antara pemasok dan pembeli yang menghasilkan ukuran lot yang meminimalkan biaya total persediaan. Serta mengarahkan sistem produksi menjadi lebih efisien dengan penerapan konsep-konsep JIT dan rantai pasok.  Model integrasi pemasok tunggal-pembeli tunggal dengan alternatif model persediaan pemasok yang berbeda dibahas pada penelitian ini dengan menyajikan model persediaan pemasok pertama dan kedua. Dari hasil contoh numerik dapat dikatakan biaya persediaan pada model pertama lebih kecil dibandingkan model kedua. Persediaan rata-rata pemasok pada model kedua lebih besar menjadikan salah satu penyebab selain frekuensi pengiriman yang lebih banyak pada model kedua
Homemade Cloth Face Masks Identification in Indonesia
Authors: Zahro Siti , Mustikasari Hany
Published: October 2022

The World Health Organization (WHO) and the Indonesian government have advised the use of cloth face masks by medical and non-medical personnel to prevent Covid-19 transmission. However, many people find it difficult to wear these masks when doing various activities outside their home. The cloth face masks used in Indonesian communities vary significantly in models, materials, and number of layers with a significant number providing discomfort to people. Therefore, this research aims to identify the factors that influence the comfort of cloth face mask model circulating in the public. Phenomenological research design through completed participant observation and open-ended interview with seven lecturers and three education personnel were used to obtain more in-depth data. The results showed that despite the availability of various models in circulation, none were comfortable to use while talking and breathing. On the other hand, their straps use a lot of materials causing pain in the earlobe. Therefore, people prefer irrespective disposable masks of their ability to pollute the environment when not properly disposed. In conclusion, it is necessary to have a homemade cloth face mask that provides comfort to people.
DENTAL HEALTH EDUCATION TO TEACHERS AND STUDENTS OF SD - IT AZZAHRA DEMAK IN THE ORDER OF IMPROVING KNOWLEDGE ABOUT MOUTH DENTAL HEALTH
Authors: Sugiarto Febia Astiawati , Wardhana Erdianto Setya , Ardlina Nira
Published: October 2022

Background: Basic Health Research data from the Ministry of Health of the Republic of Indonesia 2018 (RISKESDAS 2018) shows that the proportion of oral cavity diseases in Indonesia is still high, reaching 57.6%. When viewed by age, the proportion is 67.3% from the age of 5-9 years, and 55.6% from the age of 10-14 years. This shows that the proportion of oral cavity diseases in school-age children is quite high. Counseling and training on dental and oral health is a learning process aimed at teachers or parents in order to increase the degree of dental and oral health in children to the maximum.Method: Counseling and training of elementary school teachers as dental health cadres, Implementation of interactive discussions to deepen understanding of dental health, Counseling on oral health to elementary school students Result: Dental Health Counseling activities at SD - IT Azzahra Demak were carried out for 2 days. Participants who attended this activity were 37 teachers and 190 elementary school students - IT Azzahra Demak Conclusion: Community service activities in the form of dental health counseling for teachers and students of SD - IT Azzahra Demak took place smoothly and had enormous benefits for increasing knowledge about dental health for elementary school teachers and elementary students. This will certainly improve the degree of dental health, especially for children
Toxicological Outcome of Combined Exposure to Potassium Dichromate and Levonorgestrel in the Kidney of Female Rats
Authors: Akinwumi Kazeem A. , Oloyede Sofiat T. , Eleyowo Oluwole O. , Jubril Afusat Jagun
Published: October 2022

Co-exposure to chromate (VI) compound and oral contraceptives is common in our environment especially among women working in chromate-related industries. Exposure to either chromate (VI) or oral contraceptives is linked with the etiology of several diseases including cancers and renal injury. However, there is paucity of information on the toxic effect of combined co-exposure to both compounds. The present study examines the toxicity of combined exposure to potassium dichromate (PDC) and an oral contraceptive, levonorgestrel in the kidney of female rats. Control animals were fed distilled water, while experimental rats were injected 12 mg/kg body weight of PDC once a week for six weeks and oral daily exposure to 15µg/kg body weight of levonorgestrel either alone or in combination. Absolute and relative kidney weight, renal function, oxidative stress and pathological lesion were assessed in plasma and kidney of control and experimental rats. The PDC and levonorgestrel significantly (p<0.05) increased plasma urea creatinine and malondialdehyde levels in treated-rats, while renal superoxide dismutase and glutathione-S-transferase activities were reduced by both compounds. Moreover, histopathological lesions including necrotizing nephritis was observed in the kidney of PDC-treated rats, while tubular epithelial degeneration and necrosis was observed in levonorgestrel-treated rats. Combined exposure to both compounds aggravated the increase in urea, creatinine and renal damage. Additionally, the antioxidant enzymes were further repressed in the co-treatment group. The study suggests that combined exposure to potassium dichromate and levonorgestrel worsened nephrotoxicity in rats by increasing oxidative stress.
ANALISIS SISTEM PROTEKSI OVERFLUXING PADA SINKRONISASI GENERATOR DI PLTSA BANTARGEBANG
Authors: Agustiani Mulia , Bangsa Insani Abdi
Published: October 2022

Generator merupakan suatu alat yang digunakan untuk mengonversi energi mekanik menjadi energi listrik. Penggunaan generator banyak digunakan pada sistem pembangkit termasuk pembangkit listrik tenaga sampah (PLTSa) Bantargebang. Dalam membangkitkan listrik, pastilah melalui skema pembangkitan. Seperti pembakaran, konversi uap panas menjadi listrik dll. Dalam hal ini, Micom P342 berperan sebagai proteksi atau pelindung dari generator untuk meminimalisir bahkan menghindarkan dari kerusakan alat pada saat pembangkitan listrik. Proteksi ini berperan dengan cara mendeteksi, memberi alarm hingga mematikan semua sistem ketika nilai yang diproteksi yaitu tegangan, arus, fluks  (overfluxing) melebihi atau kurang dari batas yang telah disetting. Pada penelitian kali ini dilakukan analisis mengenai kegagalan overfluxing pada sinkronisasi generator dan mengetahui analisis setting waktu bekerjanya relay proteksi overfluxing di PLTSa Bantargebang. Analisis karakteristik gangguan kegagalan overfluxing yang dilakukan dengan cara perhitungan standar overvoltage, perhitungan kinerja relay berdasarkan frekuensi tetap dan frekuensi tidak tetap serta identifikasi karakteristik gangguan overfluxing dengan data record pada bulan Juni 2021. Adapun perhitungan setting waktu bekerjanya relay proteksi overfluxing di PLTSa Bantargebang dilakukan dengan cara menghitung kecepatan delay dengan tegangan dan frekuensi yang ditetapkan di PLTSa Bantar gebang. Hasil analisis mengenai karakteristik proteksi relay overfluxing selalu bekerja dibawah rentang nilai setting trip atau alarm yang diterapkan namun nilai setting waktu bekerjanya proteksi overfluxing sudah sesuai dengan Standar Internasional Commission (IEC) 60038 Dan dan buku panduan relay proteksi generator micom P342 yang digunakan.
Pengaruh Error Current Transformer (CT) terhadap Tagihan Pembayaran Listrik pada Pelanggan 20KV
Authors: Muzzayanah Sri , Stefanie Arnisa
Published: October 2022

Energi Listrik bukan lagi hal yang tabu di telinga kita semua, listrik di jaman teknologi sekarang menjadi salah satu bahan utama yang dibutuhkan oleh manusia, segala kegiatan yang dilakukan oleh manusia dari berbagai usia menggunakan listrik. Dari memasak, melakukan pekerjaan, mengerjakan tugas hingga berpergian. Banyak sekali yang diuntungkan karena adanya ketersediaan listrik. Apalagi dalam sektor industri khususnya pelanggan Tegangan Menengah yang membutuhkan suplpay listrik banyak sehingga membutuhkan daya yang cukup besar, dengan adanya Current Transformator (CT) atau Trafo Arus hal tersebut bisa di dapatkan untuk supplay pada input Kwh meter di indonesia, yaitu sebesar 5A pada sisi primer. Dikarenakan membutuhkan daya yang cukup besar CT yang dipasang harus sesuai dengan rasio yang sesuai dengan daya kontrak. dalam hal ini penertiban pemakaian tenaga listrik (P2TL) dilaksanakan secara langsung kelapangan oleh  PT PLN (Persero) untuk memastikan penyaluran listrik yang aman pada pelanggan sehingga pelanggan mendapatkan kenyamanan secara teknis maupun non teknis. Hasil pelaksanaan (P2TL) mendapatkan error pada CT yang terpasang, namun error yang terdeteksi merupakan kesalahan wiring atau Human error. Sehingga dapat menyebabkan Tagihan Listrik melonjak dan pelanggan merasa dirugikan, dengan adanya kebijakan tentang Penyesuaian Rekening Pemakaian Tenaga Listrik (PRPTL) oleh PT PLN (Persero)  maka tidak ada yang dirugikan dalam kasus ini.
ANALISIS PERBANDINGAN PERANCANGAN SHORE CONNECTION PERMANEN DAN SHORE CONNECTION PORTABLE DI TERMINAL JAMRUD TANJUNG PERAK
Authors: Muzakki Thoriq , Setiyoko Annas Singgih , Indarti Rini
Published: October 2022

Polusi udara di pelabuhan berupa emisi adalah hal yang melatarbelakangi shore connection. Shore connection adalah distribusi tenaga listrik dari darat ke kapal yang digunakan selama kapal berlabuh di dermaga untuk memenuhi kebutuhan daya listrik di atas kapal, dan dalam kondisi mesin kapal dimatikan. Di Pelabuhan Tanjung Perak terdapat layanan shore connection berupa jaringan distribusi shore connection permanen dan jaringan distribusi shore connection portable. Di Terminal Jamrud Tanjung Perak sudah mulai mendapatkan permintaan layanan shore connection untuk 3 kapal, namun di Terminal Jamrud hanya terdapat 1 layanan shore connection portable. Untuk bisa memfasilitasi lebih banyak kapal dan membuat kerja sama dengan perusahaan pelayaran untuk layanan shore connection, maka diperlukan perancangan shore connection di Terminal Jamrud. Perancangan shore connection harus dipertimbangkan secara teknis instalasi antara shore connection permanen dan shore connection portable untuk diterapkan. Berdasarkan aspek teknis, perancangan shore connection permanen memungkinkan untuk diterapkan di Terminal Jamrud, dimana shore connection permanen mampu melayani kapasitas kapal berlabuh di Terminal Jamrud sebanyak 14 kapal, dan shore connection permanen dapat melayani kapal dengan frekuensi kelistrikan 50 Hz dan 60 Hz. Hasil perhitungan kebutuhan daya yang dibutuhkan untuk layanan shore connection di Terminal Jamrud adalah sebesar 4000 KVA.
PENERAPAN SCADA BERBASIS IOT UNTUK SIMULATOR KONTROL PANEL PADA CONTOH KASUS PEMBANGKIT LISTRIK TENAGA MIKROHIDRO (PLTM)
Authors: Supriyono Amin , Afroni M. Jasa , Melfazen Oktriza
Published: October 2022

Beberapa PLTM di Indonesia belum dilengkapi dengan sistem SCADA. Ketiadaan sistem SCADA mengakibatkan pengoperasian PLTM harus dilakukan secara konvensional. Dengan sistem SCADA, pengawasan pada peralatan dapat dilakukan secara terus menerus dan terpusat sehingga pengoperasian peralatan bisa lebih optimal. Penambahan/pemasangan suatu alat (sistem SCADA) yang terkait dengan sistem operasi PLTM, tentu memerlukan ijin dari pihak pengelola PLTM. Agar dapat menggambarkan dampak adanya sistem SCADA pada sebuah PLTM tanpa harus melakukan pemasangan secara langsung pada sistem PLTM, maka diperlukan adanya simulator yang dapat digunakan sebagai interface untuk menghubungkan antara sistem SCADA dengan sebuah prototype kontrol panel PLTM yang dapat menggambarkan proses atau alur pengoperasian sebuah PLTM secara ringkas. Metode penelitian yang digunakan menggunakan metode eksperimental. Penelitian ini menghasilkan sebuah simulator kontrol panel berbasis SCADA yang menggunakan IoT sebagai kontroller serta internet sebagai perantara untuk menghubungkan manusia dengan simulator. Adapun kesimpulan dari penelitian ini yaitu Simulator dianggap membantu dalam mempelajari bagaimana mendesain sebuah sistem SCADA dengan menggunakan IoT, serta menjelaskan bagaimana alur proses PLTM dan apa saja yang dikontrol dan diawasi.
Bilişim Sistemine Girme ya da Sistemde Kalma Suçu
Authors: BÜKE Ahmet
Published: October 2022

Bilim ve teknolojinin baş döndürücü hızla gelişimine paralel olarak bilişim hukuku alanında ülkemizde ve dünyada hukuki düzenleme yapma zorunluluğu doğmuştur. Günümüzde dijital iletişim araçlarının kullanımının yaygınlaşması ile bilişim sistemine girme ya da bilişim sisteminde kalma fiilleri, herkes tarafından kolayca işlenebilecek bir suç türü konumundadır. Bu suç, başta bilişim sisteminin güvenliği ve güvenilirliği olmak üzere kişisel veriler, kişilerin özel yaşamı, ticari alan, ulusal ve uluslararası güvenlik gibi birçok alanı tehdit edebilecek konuma geldiği için temel bir bilişim suçudur. Bu çalışmada Türk Ceza Kanunu’nun 243. maddesinde yer alan “Bilişim Sistemine Girme ya da Sistemde Kalma” suçu, uygulamadan örnekler sunularak yargı kararları ışığında analiz edilmiştir.
Hükümlü ve Tutukluların Nakil Esasları ve Güncel Sorunlar
Authors: ARAS Bahattin
Published: October 2022

Cezaların infazı sürecinde hükümlü ve tutuklunun disiplin, asayiş ve güvenlik, hastalık, eğitim, öğretim, suç ve yargılama yeri nedenleriyle başka bir kuruma nakledilmeleri veya geçici olarak dış kurumlara götürülüp getirilmeleri gündeme gelmektedir. Bu tip naklîlerde kurumu kapasitesi ve personeli durumu gibi yasal gerekçeler önemli olduğu kadar hükümlü veya tutuklunun kişisel veya ailevi durumu, sağlık sorunları, yargılama durumu gibi hususlarında dikkate alınması gerekmektedir. Esasen hükümlü veya tutuklunun nakli gündeme geldiğinde hükümlü veya tutuklunun durum analizinin iyi yapılması ve bireyselleştirilmiş bir plan çerçevesinde bu konuda karar verilmesi gerekir. Bunun yanında nakil sırasında hükümlü ve tutuklu ile nakil personelinin can güvenliğinin sağlanması, firarın önlenmesi ve sağlıklarının korunması noktasında gerekli tedbirlerin alınması gerekmektedir. Ancak her halükârda alınacak tedbirlerin temel hakların özüne zarar veren, onların kullanılmasını imkânsız hale getiren, ayrımcı ve insan onuruna aykırı nitelikte olmaması gerekir. Nakil süreci kişiyi rahatsız etmeden tamamlanmalıdır.
Online Learning Resources, Challenges, and Coping Strategies of Low-Fee Private Schools in Ghana During COVID-19 Pandemic
Authors: Kyei-Arthur Frank , Aidoo Dorcas Adwoa
Published: October 2022

In Ghana, the education sector has been one of the most affected sectors since the emergence of COVID-19. The plights of low-fee private schools (LFPSs) in the country could be exacerbated by the closure of schools due to COVID-19. This study investigated the online learning resources, challenges, and coping strategies of LFPSs during the closure of schools in Ghana due to COVID-19 pandemic. Google Form was used to gather data from 67 heads of LFPSs in Ghana between April and June 2020. We found that about one-fifth of LFPSs used online learning before the emergence of the COVID-19 pandemic. Most LFPSs acquired an online learning resource due to COVID-19. However, heads of LFPSs had mixed perceptions of online learning. Also, the closure of schools affected school finances; teaching, learning and assessment of students; and the ability to pay teachers’ salaries. To cope with their challenges, heads of LFPSs used strategies such as staff lay off; online learning and giving assignments; and the distribution of food items and personal protective equipment. The study recommends the following: there is a need for in-service training for teachers on online learning, improvement in the information and communication technology (ICT) infrastructure across the country, and subsidization of ICT resources. Also, the Government of Ghana should provide tax relief to telecommunication companies that improve their infrastructure and expand their coverage across the country to enhance internet accessibility and connectivity.
One Tool With Multiple Uses: An Innovation Configuration Map of Flip in Education
Authors: Donovan Loretta Catherine , Besser Erin , Green Tim D.
Published: October 2022

Flip (formerly Flipgrid) was developed almost 10 years ago as a tool to allow opportunities for engagement and social presence in a virtual learning environment. Recently, we have seen an explosion of Flip’s use by PreK-adult educators, and not surprisingly, literature focused on use, frequency, and implementation strategies. What is missing from the literature is a systematic analysis of what Flip integration looks like on a broader scale. Through the development of an innovation configuration map, this study sought to describe the ways in which educators as a group use the educational application, Flip. Results show three configurations of Flip integration. Each configuration has a unique value for teaching and learning. Despite these three unique configurations, there are also uses of Flip that are consistent across all configurations. Understanding the big picture of integration allows for informed decision-making and prepares one for examining the impact of integration. Implications of these findings extend to those planning professional development and administrators wanting to promote ubiquitous uses of technology in schools.
HYBRIDIZATION OF LASER WELDING
Authors: Magdin Aleksandr , Dyusegaliev Rustem , Pripadchev Alexey , Gorbunov Alekcandr
Published: October 2022

The paper objective is to study a hybrid welding process based on the combination of two methods: laser and plasma ones. The combination of two different types of welding is a promising way to detect and then eliminate the defects of each of them. The task to which the paper is devoted is aimed at finding out features when combining different approaches to the creation of fixed welded joints. The paper analyzes hybridization of laser and plasma piles in a concise way, provides generalized information about their main advantages and disadvantages. The distinctive novelty of this work is concise and cumulative analysis of the problem involved which has not been done before. The result of the study is the publication of the hybrid welding feature, explaining the principles of the working process of the devices. On the basis of the conducted research, the following conclusions can be drawn: hybridization of laser and plasma welding compensate for the disadvantages and increase the advantages of each other; during the study, the main pros and cons are summarized, important aspects of each of the affected methods for obtaining fixed welded joints are analyzed.
THE EFFECT OF LUBRICATING COMPOSITIONS CONTAINING FULLERENES ON THE WORKPIECE UPSETTING
Authors: Albagachiev Ali , Tokhmetova Aigerim , Skripnik Sergey , Mikheev Aleksandr , Tananov Maksim
Published: October 2022

The study objective is a comparative analysis of the effect of nano-additives in engine oil on reducing the friction factor during upsetting. The task to which the paper is devoted is to obtain lubricants with different concentrations of fullerenes (C60) and analyze comparative tests of lubricant compositions. Research methods: lubricating compositions are obtained by mixing on an ultrasonic dispersant in the laboratory of friction units for extreme conditions of IMASH RAS; experimental studies are carried out at MIREA – Russian Technological University using the laboratory complex "Metal Working Process. Computerized CNC Press" which implements upsetting. Novelty of the work: for the first time, the effect of different concentrations of fullerenes (C60) on the upsetting is studied. Study results: experiments are performed on the workpiece upsetting; the dependences of the force on the workpiece movement for the tested lubricants are obtained. The main conclusion of the study is that engine oil with the introduction of fullerenes reduces the resistance to deformation of the workpiece and the friction factor
ANALYSIS OF FACTORS AFFECTING THE PRODUCTION OF OIL FARMERS IN ALIMEBUNG VILLAGE, ALOR TENGAH UTARA DISTRICT, ALOR REGENCY
Authors: Latuan Emirensiana , P Timung Andri , Bubungki Gersun
Published: October 2022

In general, the farming production process runs with the requirements needed by plants, these requirements consist of land, labor, and production facilities. Data collection techniques in this study were observation, interviews, questionnaires and recording. Purposive Village Determination in Alimebung Village, Alor Tengah Utara District, Regency is one of the villages that produce mustard greens. Determination of the sample is done by using a saturated sample with a sample of 55 people. Factor analysis using t test and F test. The results of the analysis show that: Variable area of ​​land has a positive and significant effect on production, variable labor has a positive and not significant effect on production, variable capital has a positive and significant effect on production, variable management management positive and insignificant effect on production.
ANALISA OPTIMALISASI WAKTU PROYEK DENGAN METODE CRASH PROGRAM PADA PROYEK RUMAH SAKIT DI KOTA TANGERANG
Authors: Haq Saiful , Abadiyah Siti , Dimastoro Prandiko
Published: October 2022

Proyek konstruksi merupakan suatu rangkaian kegiatan yang hanya satu kali dilaksanakan. Manajemen proyek adalah proses merencanakan, mengorganisir, memimpin, dan mengendalikan sumber daya perusahaan untuk mencapai sasaran jangka pendek yang telah ditentukan. Tujuan utama penelitian ini adalah untuk mengetahui jumlah waktu yang dapat dipercepat. Pada proyek Pembangunan Rumah Sakit Hermina Kotabumi dipilih sebagai tempat studi penelitian. Langkah  langkah yang dilakukan adalah menyusun network planning (jaringan kerja) dengan metode Critical Path Method (CPM), menentukan jalur kritis dan melakukan percepatan dengan menggunakan cara crash program untuk mengoptimalkan waktu proyek. Hasil perhitungan menunjukkan waktu pelaksanaan normal proyek adalah 312 hari dengan cara crash program yaitu dengan menambah 1 jam penambahan jam kerja lembur maka proyek dapat dipercepat sebanyak 24 hari. Penambahan jam kerja sebaiknya dilakukan pada pekerjaan-pekerjaan kritis, apabila dilakukan pada semua, maka hanya akan menambah biaya saja sementara waktu yang dipercepat tetap.
ANALISA PRODUKTIVITAS TENAGA KERJA TERHADAP BIAYA DAN WAKTU PELAKSANAAN PADA PEKERJAAN PEMBANGUNAN PROYEK MASJID AL-ISTIGHFAR DI SINDANG PANON, KAB. TANGERANG
Authors: Purwanto Sugeng , Alfandi Brian , Tiana Elita
Published: October 2022

Dalam perencanaan konstruksi biaya dan waktu merupakan dua hal yang saling terkait. Perencanaan kontruksi yang baik dapat meminimalisir penggunaan biaya dan waktu tersebut. Berdasarkan perencanaan yang telah dilakukan maka saat pelaksanaan pekerjaan kontruksi, seorang kontraktor dapat memperkirakan biaya dan waktu pekerjaan sehingga mampu mengontrol dengan baik pekerjaan di lapangan. Dari perencanaan yang sudah dibuat, diketahui ongkos suatu pekerjaan serta waktu yang dibutuhkan untuk pengerjaannya. Selain itu dari perencanaan tersebut dapat diketahui produktivitas yang harus dicapai perharinya sehingga memudahkan dalam hal pengaturan penggunaan tenaga kerja serta pengontrolan ongkos pekerjaan di lapangan.Pengamatan ini menggunakan jenis data primer dan data sekunder yaitu data primer diperoleh melalui laporan pengamatan langsung di lapangan, dimana hal yang diamati adalah jumlah pekerja, volume pekerjaan dan waktu pengerjaan. Dan data sekunder diperoleh secara tidak langsung melalui sumber lain berupa rencana anggaran biaya, time schedule. Berdasarkan hasil analisa, produktivitas tenaga kerja pembangunan Masjid Al-Istighfar adalah sebesar 64,20%, sehingga produktivitas dilapangan dapat disimpulkan lebih menguntungkan dari produktivitastenaga kerja berdasarkan perencanaan.Berdasarkan analisa waktu yang dibutuhkan untuk menyelesaikan pembangunan Masjid Al-Istighfar berdasarkan perencanaan adalah 422 hari dengan rencana anggaran biaya untuk ongkos pekerjaan sebesar Rp. 362.022.692 sedangkan realisasi dilapangan waktu yang dibutuhkan untuk menyelesaikan Masjid Al-Istighfar adalah 378 hari dengan realisasi biaya pekerjaan sebesar Rp. 324,891,544, Maka dari itu bisa dikatakan dalam realisasi pelaksanaan dilapangan untuk pembangunan Masjid Al-Istighfar lebih cepat 44 hari dari waktu perencanaan dan menghemat pengeluaran ongkos pekerjaan sebesar Rp. 37,131,148Kata kunci:  Perencanaan, Produktivitas, Ongkos Pekerjaan, Perbandingan Rencana Dengan Realisasi.
PERBANDINGAN BEKISTING SISTEM SCAFFOLDING DENGAN BEKISTING SISTEM PERI UP UNTUK PEKERJAAN BALOK DAN PELAT DI TINJAU DARI SEGI BIAYA DAN WAKTU PELAKSANAAN PADA MPP PROJECT OFFICE BUILDING
Authors: Purwanto Sugeng , Basirun Basirun , Suyatno Suyatno
Published: October 2022

Dalam pekerjaan konstruksi beton, ada tiga komponen utama yang harus direncanakan dengan matang. Hal tersebut akan mempengaruhi keberhasilan suatu pekerjaan struktur. Ketiga komponen yang utama pada pekerjaan struktur tersebut adalah campuran beton, tulangan dan bekisting. Komponen bekisting adalah cetakan sementara yang harus dapat menahan lendutan yang akan timbul. Oleh karena itu penulis ingin mengetahui sistem bekisting yang efisien dalam pelaksanaan , biaya dan waktu untuk MPP Project Office Building. Dalam perbandingan penggunaan kedua jenis bekisting tersebut, dilakukan studi literature, studi proyek dan studi diskusi atau wawancara terhadap aspek teknis dan operasional dari masing – masing tipe bekisting tersebut. Aspek yang dijadikan sebagai bahan perbandingan meliputi aspek metode pemasangan , biaya, waktu, bahan dan upah pada pekerjaan di MPP Project Office Building. Untuk menentukan metode pelaksanaan yang akan diterapkan, terlebih dahulu di lakukan analisis waktu pelaksanaan maupun biaya pelaksanaan. Hasil analisa biaya didapat dari analisa harga satuan yang dikalikan dengan volume pekerjaan serta biaya sewa peralatan baik itu alat plat maupun balok dari kedua sistem biaya dari bekisting sistem Scaffolding dengan sistem Peri Up.Kata kunci:  Bekisting Sistem Scaffolding, Bekisting Sistem Peri Up, Biaya dan Waktu.