bluuebunny/crossref_metadata_2025 huggingface dataset:
Guided surgery in dental implant: a systematic review
Authors: Guimarães José Fernando Paschoal , Caruzi Junior Lafayete , Kassis Elias Naim
Published: December 2021

Introduction: In the context of implant dentistry, dental implants represent about 1,000,000 procedures per year worldwide. Virtual implant planning systems integrate cone beam computed tomography (CT) data to assess the amount of bone and virtual models for the project of a dental implant. Objective: It presented, through a systematic review, the main considerations of guided surgery in implant dentistry through evidence from clinical studies and important systematic reviews on the subject. Methods: The research was carried out from May 2021 to June 2021 and developed based on Scopus, PubMed, Science Direct, Scielo, and Google Scholar, following the Systematic Review-PRISMA rules. The quality of the studies was based on the GRADE instrument and the risk of bias was analyzed according to the Cochrane instrument. Results: A total of 112 articles were found on guided surgery and implantology. Initially, duplication of articles was excluded. In total, 54 articles were fully evaluated and 23 were included and evaluated in this study. In the GS scenario, advances in technology have contributed to the improvement of models with favorable positioning of implants in aesthetic terms. This provides the predictability of techniques and difficulties that may be encountered during surgical intervention, reducing time and the possibility of errors, allowing for an overall reduction in the costs of oral rehabilitation. Conclusion: Guided surgery is considered accurate and reliable compared to free implant surgery. However, the learning curve is undeniable and a clinician with basic surgical skills, including conventional implant dentistry.
PENERAPAN ETIKA KONSERVASI DALAM RESTORASI MINIATUR RUMAH TRADISIONAL NIAS: MELESTARIKAN ARSITEKTUR TRADISIONAL TAHAN GEMPA
Authors: Lestari Dian Novita , Hasanah Farah Dhita
Published: December 2021

Indonesia memiliki arsitektur rumah tradisional yang sangat beragam. Namun, keberadaan bangunan tradisional Indonesia sudah semakin berkurang karena tergerus modernisasi.  Salah satu upaya pelestarian yang dilakukan oleh Museum Nasional Indonesia adalah dengan mempertahankan bentuk arsitektur tradisional dalam bentuk miniatur koleksi. Miniatur ini memiliki fungsi sebagai representasi dari rumah asli di daerah asalnya. Dalam tulisan ini dijabarkan proses restorasi dua koleksi miniatur rumah tradisional yang terdapat di Museum Nasional, yaitu rumah tradisional Nias Utara dan Nias Selatan. Tahapan restorasi yang dilakukan mengikuti etika konservasi sehingga fisik koleksi dapat dipertahankan tanpa mengubah struktur asli bangunan yang seharusnya ada. Pelaksanaan restorasi  diawali dengan mengumpulkan informasi mengenai bentuk koleksi sebelum kerusakan melalui pencarian data berupa foto, laporan kurasi, atau konservasi terdahulu. Informasi mengenai struktur dan material bangunan diperkuat dengan pencarian referensi yang sesuai. Restorasi miniatur rumah tradisional di Museum Nasional bertujuan untuk mengembalikan bentuk fisik bangunan arsitektur tradisional guna melestarikan fungsi-fungsi yang melekat padanya, seperti informasi mengenai keunikan arsitekturnya dan struktur tahan gempa. Tulisan ini diharapkan dapat menjadi acuan dalam penerapan etika konservasi yang harus dipatuhi dalam melakukan restorasi, khususnya dalam preservasi arsitektur tradisional.
Crisis económica, post pandemia y el problema laboral
Authors: Estigarribia Ángel
Published: December 2021

Es clave comprender las causas fundamentales de la crisis económica actual y sus implicaciones en el mundo del trabajo. El Coronavirus es un detonante, pero no la razón de la crisis. Después de cada crack económico sobreviene una serie de medidas de reorganización productiva que afecta profundamente las condiciones laborales. Las instituciones internacionales y los gobiernos no ocultan sus planes de reformas. Desde la revolución conservadora de Reagan no ha parado el proceso de flexibilización, que con cada crisis se ha profundizado.
COVID-19 y educación ¿Cuál es el mal que afecta a Paraguay en el marco de América Latina?
Authors: Gluz Nora , Elías Rodolfo
Published: December 2021

El artículo analiza las respuestas de los sistemas educativos latinoamericanos frente a la pandemia, poniendo atención especial al caso paraguayo. La pandemia llega a la región, en el marco de un “giro a la derecha” de gran parte de los gobiernos. Estos proyectos se oponen a los avances logrados en el derecho a la educación durante los gobiernos progresistas.Al examinar las medidas asumidas durante la pandemia en distintos países de la región se identifican importantes tensiones: a) Los países cuyos gobiernos sostienen orientaciones mercantilistas tendieron a suspender las clases “bajo presión” de las comunidades priorizando el lucro sobre el resguardo de la vida en común; b) Las profundas desigualdades de género en países en que el patriarcado se evidenciaron aún más durante la pandemia, en que las fronteras entre escuela y hogar se diluyen, en especial en la docencia, donde la feminización del trabajo y desigualdades de género se potencian; c) En tercer lugar, las condiciones materiales en los hogares afectan la capacidad de respuesta y de trabajo a distancia. En el Paraguay, se puso al descubierto la debilidad del Ministerio de Educación (MEC) para generar y conducir una respuesta satisfactoria ante la crisis generada por el COVID-19.
Ciudades educadoras que sienten y abrazan como antídoto al COVID-19
Authors: Hernández-Carrera Rafael M.
Published: December 2021

Un siglo después de la pandemia por gripe de 1918, las distintas formas de cuarentena en todo el mundo han provocado enormes cambios en la manera de trabajar y, también, de enseñar y aprender. Hasta dónde estas nuevas formas van a transformar la educación está lleno de incógnitas. Este trabajo aboga por hacer realidad una educación de acompañamiento desde espacios más significativos para la ciudadanía: las ciudades como educadoras. Este hecho puede permitir superar el positivismo de nuestras aulas racionalistas, con nuevas prácticas y con nuevas pedagogías, en un marco de libertad y ayudado de las nuevas tecnologías educativas, en busca de hombres y mujeres que aprendan y disfruten haciéndolo a lo largo de toda la vida. Este periodo de postpandemia será, claramente, un tiempo de luces y sombras, un tiempo de lucha de poder por imponer formas educativas para la servidumbre o para liberar. Generar espacios educadores en donde se aprenda con alegría y emoción, en libertad, que acompañe a la persona a lo largo de su vida, debe ser una de las misiones más esperadas de las ciudades educadoras del siglo XXI.
Pengaruh persepsi siswa tentang pengelolaan kelas dan motivasi belajar terhadap prestasi belajar ekonomi siswa kelas xi jurusan akuntansi smk negeri 1 medan t.a 2017/2018
Authors: Fitrida Purba Ayu , Sinaga Dearlina , Simatupang Sopar
Published: December 2021

Penelitian ini bertujuan untuk mengetahui: (1) pengaruh persepsi siswa tentang pengelolaan kelas terhadap prestasi belajar ekonomi siswa kelas XI SMKNegeri 1 Medan tahun ajaran 2017/2018, (2) pengaruh motivasi belajar terhadap prestasi belajar ekonomi siswa kelas XI SMK Negeri 1 Medan tahun ajaran 2017/2018, (3) pengaruh persepsi siswa tentang pengelolaan kelas dan motivasi belajar terhadap prestasi belajar ekonomi siswa kelas XI SMK Negeri 1 Medan tahun ajaran 2016/2017. Penelitian ini merupakan penelitian dengan pendekatan kuantitatif. Populasi penelitian ini adalah siswa kelas XI SMK Negeri 1 Medan sejumlah 149. Sebanyak 10  siswa digunakan untuk pengujian validitas angket, sedangkan 36 responden sebagai data penelitian. Teknik pengumpulan data menggunakan angket dengan model skala likert 4 alternatif jawaban. Analisis data yang digunakan adalah regresi linear berganda. Hasil penelitian menunjukkan: (1) terdapat pengaruh positif persepsi siswa tentang pengelolaan kelas terhadap prestasi belajar ekonomi siswa kelas XI SMK Negeri 1 Medan tahun ajaran 2017/2018; sebesar 3,628 (2) terdapat pengaruh positif motivasi belajar terhadap prestasi belajar ekonomi siswa kelas XI SMK Negeri 1 Medan tahun ajaran 2017/2018; 2,371 (3) terdapat pengaruh positif persepsi siswa tentang pengelolaan kelas dan motivasi belajar secara bersama-sama terhadap prestasi belajar ekonomi siswa kelas XI SMK Negeri 1 Medan tahun ajaran 2017/2018 dan sebesar 42,3 %.
Analisis Dampak Covid-19 Terhadap Perkembangan Umkm (Studi Kasus : Home Industri Kopi Sikarta) Di Desa Sialang Kecamatan Bangun Purba Kabupaten Deli Serdang
Authors: Utami Rahayu Sri , Ginting Handeo , Khairil Muhammad
Published: December 2021

Penelitian ini bermaksud untuk menganalisa dampak Covid-19 terhadap perkembangan Usaha Mikro, Kecil, dan Menengah di Kabupaten Deli Serdang, Kecamatan Bangun Purba, Desa Sialang. Penelitian ini dilakukan selama pandemic Covid-19 dalam rentang waktu bulan April sampai Juli 2021. Populasi peneilitian ini yaitu Usaha Mikro, Kecil, dan Menengah yang ada di Kabupaten Deli Serdang. untuk menganalisi data penelitian ini menggunakan analisis regresi linier sederhana untuk melihat ada tidaknya pengaruh dari Covid-19 terhadap perkembangan Usaha Mikro, Kecil, Menengah di Kabupaten Bangun Purba, dimana besaran pengaruhnya adalah 4,1%.
FORECASTING THE VOLUME OF FLOOD RUNOFF OF THE YESIL RIVER USING THE PATTERN
Authors:   RSE ", Abayev N.N. ,   Kazhydromet",   al-Farabi Kazakh National University, Birimbayeva L.M. ,   RSE "Kazhydromet", Tillakarim T.A. ,   RSE "Kazhydromet",   al-Farabi Kazakh National University, Serikbay N.T. ,   RSE "Kazhydromet",   al-Farabi Kazakh National University
Published: December 2021

The research presents the results of forecasting the volume of flood flow of the Yesil River by pattern recognition method for 1th february and 1th march 1. The calculations used daily data of water consumption, the volumes at the hydrological post of the river Yesil gauge station Turgen, also as predictors of minimum air temperature, precipitation, decadal data on water reserves in the snow cover for the long-term period 1980...2020. The results showed a satisfactory quality of the forecast in terms of efficiency and correlation. Statistical analysis showed a good correlation between the observed and predicted values: 0.76 according to the forecast for February 1 and 0.80 on March 1. The result of the research, it revealed that the prediction using the image recognition method based on the data for March 1 showed more accurate results in terms of quality.
TRANSFORMATION OF THE HYDROGRAPHIC NETWORK OF ALMATY DUE TO ANTHROPOGENIC INFLUENCE
Authors:   al-Farabi Kazakh National University, Duskaev K.K , Chigrinets A.G. ,   al-Farabi Kazakh National University, Tursyngali M.N. ,   al-Farabi Kazakh National University, Akhmetova S.T ,   al-Farabi Kazakh National University, Mussina A.K. ,   al-Farabi Kazakh National University
Published: December 2021

The article evaluates the transformation of the hydrographic network of urbanized territories using digital maps, on the example of the city of Almaty. Based on the plan-schemes for 1960, 1980, 1917, 1941 and 1981, maps of the city were compiled. To clarify the current state of the modern hydrographic network, the digitized map for 2015 was chosen as the basis. With the help of this, the total length of watercourses and the catchment area, the density of the hydrographic network were calculated, and their dynamics for the specified periods were also estimated. Artificial water bodies that eventually appeared on the territory of the city are described. The inclusion of artificial water bodies in the elements of the hydrographic network and the influence of the anthropogenic factor on natural water bodies are considered. The results of the study can be widely used in organizing measures for the water supply of the territory and minimizing the impact of harmful economic activity on water bodies.
PERAN KEKERABATAN DALAM PEMENAGAN PEMILIHAN KEPALA DESA MENJALIN TAHUN 2018
Authors: Junaidi Kur , Lestari Tuti
Published: December 2021

Tujuan penelitian yang pertama untuk mengetahui bagaimana bentuk politik kekerabatan Desa Menjalin mencakup wilayah kerabat, pengamatan, dan praktek kehidupan bersama dalam lingkup politik desa.Kedua untuk mengetahui peran dan upaya kerabat dalam Pemilihan Kepala Desa 2018. Penelitian ini menggunakan pendekatan kualitatif dengan jenis Field research. Adapun teknik pengumpulan data yang digunakan penelitian ini adalah observasi, in dept interview (wawancara mendalam) dan dokumentasi. Sedangkan teknik analisis data dalam penelitian ini menggunakan analisa data kualitatif meliputi reduksi data, display data, verifikasi dan simpulan. Teknik pemeriksaan keabsahan yang digunakan adalah trianggulasi, sedangkan teori yang digunakan adalah antropologi politik, konsep kekuasaan.

Hasil Penelitian: a) kekerabatan yang terdapat dalam Desa Menjalin keluarga yang luas dari keturunan ayah atau ibu atau disebut bilateral juga bisa dikatakan kekerabatan kindred dimana kesatuan kerabat yang melakukan interaksi atau berkumpul antar anggota kerabat pada waktu tertentu. Dalam kehidupan politik memang sudah terjadi pengkaderan dari saudara-saudara yang lebih terdahulu memimpin meskipun tidak terlihat secara masif namun sudah disiapkan untuk memimpin Desa Menjalin selanjutya. b) Peran kerabat dalam hal ini sudah sangatlah jelas, jika sudah ada pengkaderan  maka tugas kerabat yang lain pastinya gerakannya yakni menjadi tim sukses yakni mempengaruhi tetangga sekitar untuk memilih nama kerabat yang diusung  dan memastikan kerabat yang diusung berhasil menduduki Menjalin satu.
PENDIDIKAN POLITIK DAN PARTISIPASI MASYARAKAT DESA MEKAR JAYA
Authors: Haryani Tutik , Hadi Seto
Published: December 2021

Penelitian ini bertujuan; a) Untuk menggambarkan dan menganalisa pendidikan politik dan pengaruhnya terhadap partisipasi politik masyarakat di Desa Mekar Jaya Kecamatan Parenggean berdasarkan latar belakangnya. b) Untuk menggambarkan dan menjelaskan bagaimana dan sampai dimana partisipasi politik masyarakat Desa Mekar Jaya Kecamatan Parenggean dalam pemilihan Presiden dan Wakil Presiden. c) Untuk mengetahui bagaimana serta apa saja faktor yang mempengaruhi partisipasi politik masyarakat di Desa Mekar Jaya Kecamatan Parenggean.

Penelitian ini menggunakan metode kualitatif dengan jenis penelitian deskriptif yang bertujuan untuk menggambarkan bagaimana partisipasi masyarakat pada pilpres 2019, di Desa Mekar Jaya Kecamatan Parenggean.

Hasil Penelitian: a) Pendidikan serta partisipasi politik masyarakat di Desa Mekar Jaya Kecamatan Parenggean Kabupaten Kotawaringin Timu Terbilang kurang baik karena kurangnya masyarakat ikut serta dalam menggunakan hak suara mereka diakibatkan tingkat pendidikan serta partisipasi politik masyarakat di Desa Mekar Jaya tersebut kurang memahami apa itu pesta demokrasi yang sebenarnya, mereka lebih memilih golput tidak menggunakan hak suara nya di bandingkan ikut serta dalam pemilihan. b) Faktor- faktor yang mempengaruhi partisipasi politik yang kaitannya dengan konteks sosial. Kongkretnya, memilih seseorang dalam pemilihan umum dipengaruhi latar belakang demografi dan sosial ekonomi, seperti jenis kelamin, tempat tinggal (kota-desa), pekerjaan, pendidikan, kelas, pendapatan dan agama. Faktor fisikologi merujuk pada persepsi pemilih atas partai-partai yang ada atau keterkaitan emosional pemilih terhadap partai tertentu serta faktor pendekatan rasional melihat kegiatan memilih sebagai produk kalkulasi untung dan rugi.
PANITIA PEMUNGUTAN SUARA DALAM KESIAPAN PELAKSANAAN PEMILIHAN GUBERNUR DAN WAKIL GUBERNUR KALIMANTAN TENGAH TAHUN 2020
Authors: Sentosa Alfrid , Agustina Metiana
Published: December 2021

Penelitian ini mengangkat tentang kapasitas Panitia Pemungutan Suara (PPS) dalam kesiapan pelaksanaan pemilihan Gubernur dan Wakil Gubernur Kalimantan Tengah tahun 2020 pada masa pandemi Cocid-19 di Kelurahan Bukit Tunggal Kota Palangka Raya dengan tujuan mendeskripsikan dan mengetahui kapasitas PPS dalam kesiapan pemilhan Gubernur dan Wakil Gubernur Kalimantan Tengah Tahun 2020 pada masa pandemi covid-19

Penelitian dalam skripsi ini berjenis kualitatif dengan pendekatan deskriftif. Lokasi penelitian ini dilakukan di kelurahan Bukit Tunggal Kota Palangka Raya. Informan dalam penelitian adalah Lurah, Ketua PPS, Sekretaris PPS, Anggota PPS, dan Tokoh Masyarakat.

Hasil penelitian menunjukan bahwa kapasitas PPS dalam kesiapan pelaksanaan Pilkada Kalteng dapat dilihat dari 1) Pemahaman, yaitu PPS sangat memahami tugas mereka dalam menyelenggarakan persiapan pemilihan di Kelurahan Bukit Tunggal, serta memberikan pemahaman kepada masyarakat melalui sosialisasi. 2) Keterampilan, dilakukan dengan menjalankan tugas dengan sarana dan prasarana yang terbatas, teliti, serta memiliki ide-ide yang kreatif dengan membangun kerjasama dengan beberapa pihak dalam persiapan Pilkada Kalteng 2020. 3) Kemampuan, dilakukan dengan mampu menjalankan tugas dengan tepat waktu yang diberikan. Faktor pendukung yaitu tersedianya sarana prasarana, ada keinginan untuk berkembang, ketersediaan anggaran serta adanya kerjasama. Sedangkan faktor penghambat adalah keterbatasan sumber daya manusia, keterbatasan komunikasi, kurangnya partisipasi masyarakat akibat adanya pandemi Covid-19.
Xác định khả năng thắng thầu, giá dự thầu hợp lý trong đấu thầu cạnh tranh bằng phương pháp mạng Bayesian belief networks và lý thuyết trò chơi
Authors: Trình Nguyễn Đăng , Tân Lê Thanh , Lai Phan Duy , Gia Trần Hoàng , Học Trần Đức
Published: December 2021

Lựa chọn giá dự thầu hợp lý và xác định khả năng thắng thầu là một trong những vấn đề mang tính sống còn đối với các nhà thầu. Đây là một vấn đề rất khó vì trong hoạt động đấu thầu có sự đa dạng và phức tạp. Các nghiên cứu trước chỉ dựa vào dữ liệu quá khứ để đưa ra quyết định; tuy nhiên, dữ liệu quá khứ chỉ là một nhân tố ảnh hưởng đến quyết định tham gia dự thầu cần thêm các dữ liệu thông tin tổng hợp khác. Bài báo này trình bày phương pháp sử dụng mạng bayesian belief networks (BBNs) và lý thuyết trò chơi để xác định khả năng thắng thầu trong đấu thầu cạnh tranh. Để thực hiện các mục tiêu trên, Kết quả nghiên cứu đã tiến hành thu thập dữ liệu và phân tích, để đưa ra các nhân tố ảnh hưởng có thể đánh giá được bản thân và các đối thủ sẽ có xu hướng lựa chọn giá dự thầu. Đồng thời, mô hình cũng đánh giá sự tương tác của nhà thầu với các đối thủ tiềm năng để xác định giá dự thầu hợp lý, cũng như xác suất thắng thầu lớn nhất.
Reivindicaciones sociales en carátulas de discos de la música independiente chilena
Authors: Figueroa-Bustos Arturo Alejandro
Published: December 2021

El presente artículo explora la relación entre carátulas de discos publicados en Chile entre 2006 y 2020 por músicos indie y las reivindicaciones sociales surgidas desde los jóvenes durante esos años y que culminaron en el estallido social del 18 de octubre de 2019. Para ello, se interpretan aspectos lingüísticos, denotativos y connotativos de este soporte visual de la música popular. Los resultados dan cuenta de una comunicación de dos mensajes: uno que posiciona las nuevas identidades de género y otro que reivindica la cultura de los pueblos originarios y promueve una nueva relación con naturaleza y medio ambiente.
NEW TEST RIG FOR MEASURING THE FRICTION TORQUE
OF GEARBOXES IN EXTREME THERMAL CONDITIONS
Authors: Tuszyński Waldemar , Szczerek Marian , Wulczyński Jan , Gospodarczyk Andrzej , Michalczewski Remigiusz , Samborski Tomasz , GIBAŁA Michał , Wieczorek Andrzej
Published: December 2021

A new test rig for tribological tests was developed and manufactured. It consists of a mobile device for
measurement of the start-up friction torque of transmissions, in particular planetary gearboxes, and the
friction torque in dynamically steady conditions, as well as a climatic chamber to stabilize the temperature
of the tested gearbox in its extreme range: from -50 to +50°C. In the series of devices for tribological tests,
developed and manufactured at the Institute, the new test rig is marked with the symbol T-34.
The verification results correspond with the churning losses related to the viscosity characteristics of the
lubricating oils. As the temperature increases, both the start-up friction torque and the friction torque under
dynamically steady conditions decrease.
Demographic and Evolutionary Consequences of Pandemic Diseases
Authors: DeWitte Sharon , Wissler Amanda
Published: December 2021

The ongoing COVID-19 pandemic has justifiably captured the attention of people around the world since late 2019. It has produced in many people a new perspective on or, indeed, a new realization about our potential vulnerability to emerging infectious diseases. However, our species has experienced numerous catastrophic disease pandemics in the past, and in addition to concerns about the harm being produced during the pandemic and the potential long-term sequelae of the disease, what has been frustrating for many public health experts, anthropologists, and historians is awareness that many of the outcomes of COVID-19 are not inevitable and might have been preventable had we actually heeded lessons from the past. We are currently witnessing variation in exposure risk, symptoms, and mortality from COVID-19, but these patterns are not surprising given what we know about past pandemics. We review here the literature on the demographic and evolutionary consequences of the Second Pandemic of Plague (ca. fourteenth–nineteenth centuries C.E.) and the 1918 influenza pandemic, two of the most devastating pandemics in recorded human history. These both provide case studies of the ways in which sociocultural and environmental contexts shape the experiences and outcomes of pandemic disease. Many of the factors at work during these past pandemics continue to be reproduced in modern contexts, and ultimately our hope is that by highlighting the outcomes that are at least theoretically preventable, we can leverage our knowledge about past experiences to prepare for and respond to disease today.
Structure and Properties of Alkaline Cement and Concrete and Choice of Factors That Affect Service Life
Authors: Lastivka Oles
Published: December 2021

The chapter covers the results of influence of changes in proportions between Portland cement and slag content, along with different quantities of alkali components in the cement systems on their heat of hydration and the effect of this during their hardening on character of internal stresses development and crack opening in concrete. The correlation between heat of hydration of the cements during hardening, strength of the concrete and stress development, and the dependence of this relationship on technical and technological factors were received. A new structure-based model for the durability (cracking) assessment of the alkaline cement concrete with heat of hydration and deformation properties during hardening as the input was received.
New Ethylenediamine Crosslinked 2D-Cellulose Adsorbent for Nanoencapsulation Removal of Pb (II) and Cu (II) Heavy Metal Ions: Synthesis, Characterization Application, and RSM-Modeling
Authors: Jilal Issam , El Barkany Soufian , Bahari Zahra , El Ouardi Youssef , Loutou Mohamed , Amhamdi Hassan , Abou-Salama Mohamed , Salhi Amin , El Idrissi Abderrahmane , Laatikainen Katri
Published: December 2021

The main objective of the present work is to elaborate on a new eco-friendly and efficient adsorbent designated for aquatic micropollutants removal. However, the synthesis of the Ethylenediamine Crosslinked 2D-Cellulose green adsorbent was carried out successfully, by partial grafting of benzyl entities onto hydroxyl groups of HEC, and crosslinking with ethylenediamine ED. Further, the new ethylenediamine crosslinked 2D-Cellulose was used as a biosorbent for nanoencapsulation removal of copper and lead heavy metal ions from aqueous solutions. The proposal chemical structures of unmodified and modified materials were confirmed using FTIR, XRD, TGA, and SEM–EDX analysis. Furthermore, many parameters of the optimization for Pb (II) and Cu (II) in terms of removal efficiency including pH, adsorbent amount, and contact time were optimized by response surface methodology with a Box–Behnken design. Based on the desirability optimization with three factors, the maximal removal was 99.52% and 97.5% for Pb(II) and Cu(II), respectively and was obtained at pH = 5.94, 22.2 mg as the optimal adsorbent amount, and 21.53 min as contact time.
Structure: Activity and Emerging Applications of Spices and Herbs
Authors: Ojutalayo Adeeyo Adeyemi , Mellda Ndou Tshianeo , Adewumi Alabi Mercy , Dumisani Mkoyi Hosana , Motunrayo Enitan Erinfolami , Beswa Daniso , Makungo Rachel , O. Odiyo John
Published: December 2021

Herbs and spices are plant parts (herbs from leaves and spices from other parts) that are conventionally used in their fresh or dried state for flavouring, natural condiments, preservatives and for medicinal purposes. Worldwide, most spices are classified on the basis of taste, season of growth, economic importance, growth habit and plant part used. Black pepper, chilies, small cardamom, ginger and turmeric are some of the widely used spices while common herbs include thyme, basil and bay leaves. These herbs are basically classified according to usage, active constituents and period of life. Secondary metabolites such as Eugenol, thymol, limonene, cuminaldehyde, curcumin, piperine, quercetin, luteolin in these plant parts have been found to be responsible for anticancer, antimicrobial, antiviral, antidiabetic, antioxidant, anti-inflammatory and hypocholesterolemic effects. Their application in water fortification, milk and cheese processing, production of beauty products and pesticides among others could not be underestimated. Finally, adulteration, toxicity and allergic reactions are some of the identified limitations and challenges often encountered in the use of herbs and spices.
Morphological, hydrodynamic and sedimentary characteristics of the Northeastern coast of Cuba
Authors: Paneque Ridel Rodriguez
Published: December 2021

The absence of the marine platform, the presence of emerged and submerged terraces with tide notches on its front face and the increase in the number of beaches constituted by terrigenous sands towards the east end of this coastal stretch are the main geomorphological features that characterize the northeastern coast of Cuba. The lower rocky terrace is the best represented type of coastline on the Northeastern coast, exposed to the direct action of ocean waves. Considering the inland coast, mangroves are the most abundant type of coast and occupy most of the bays on this coastal stretch. From the hydrodynamic point of view, the highest wave heights of the north coast of Cuba take place there. In addition, the biggest tidal range of the Cuban archipelago is recorded. From the sedimentary point of view, these beaches have a greater amount of fragments of mollusks and corals and fewer fragments of calcareous algae than the other beaches of the Cuban archipelago. These beaches, unlike the other beaches of Cuba, show cumulative processes at the end of winter and early spring, with a maximum accumulation in April, while eroding at the beginning of autumn, with maximum values in the months of September and October. Keywords: Coastal characteristic, beach, genesis sand, Northeastern coast of Cuba.
Juvenal's Tenth Satire
Authors: Murgatroyd Paul
Published: December 2021

This is not a commentary on Juvenal 10 but a critical appreciation of the poem which examines it on its own and in context and tries to make it come alive as a piece of literature, offering one man’s close reading of Satire 10 as poetry, and concerned with literary criticism rather than philological minutiae. In line with the recent broadening of insight into Juvenal’s writing this book often addresses the issues of distortion and problematizing and covers style, sound and diction as well. Much time is also devoted to intertextuality and to humour wit and irony. Building on the work of scholars like Martyn, Jenkyns and Schmitz, who see in juvenal a consistently skilful author, this is a whole book demonstrating a high level of expertise on Juvenal’s part sustained throughout a long poem. This investigation leads to the conclusion that Juvenal is an accomplished poet and provocative satirist, a writer with real focus, who makes every word count, and a final chapter exploring 11 and 12 confirms that assessment. Translation of the Latin and explanation of references are also included so that Classics students will find the book easier to use and it will also be accessible to scholars and students interested in satire outside of Classics departments.
Parametric Optimization of Open and Ducted Propellers
Authors: Brizzolara Stefano , Gaggero Stefano , Grasso Alessandro
Published: December 2021

A new method for automatic optimization of an initial design of open and ducted propellers is illustrated in the paper. The method is based on a B-Spline based parametric representation of the main geometric parameter of the propeller blades, such as pitch and chords distributions along the radius and blade mean surface (cambered surface) as a BSpline surface. The automatic optimization procedure is driven by a state of the art multi-objective minimization algorithm that drives the selection of the control points that define the shape of the geometric parameters curves and surfaces. The objective function can include not only global characteristics such as efficiency and thrust, but also sheet cavitation extension and volume. The prediction of the propeller hydrodynamic characteristics is made by a panel method developed by the authors and validated in several occasions, applicable to open or ducted propellers, also subject to sheet cavitation.
Measurements of Controllable Pitch Propeller Blade Loads in Turns
Authors: Jessup Stuart D. , Donnelly Martin , Fry David , Etebari Ali , Burton Josh , Jacobson Jessica
Published: December 2021

To improve the prediction of the alternating blade loading under ship turning conditions, a test was conducted in a rotating arm facility, where propeller hub loads were measured on a combatant propeller/hull configuration. To obtain the alternating blade forces, three propeller configurations were tested: the baseline five bladed prop, a one bladed version, and a four bladed version (one blade removed). Care was taken to account for propeller imbalance, and centrifugal effects on loads. PIV was also used to measure the propeller inflow. The measured alternating blade forces were analyzed relative to the earlier tests of Boswell1. Also the measured inflow was used to compare load predictions to the measured results. Detailed analysis was performed to validate the use of both a single bladed and a four bladed prop to derive the single bladed forces.
OpenProp: An Open-source Design Tool for Propellers and Turbines
Authors: Epps B. P. , Stanway M. J. , Kimball R. W.
Published: December 2021

An open-sourced computational tool for the design and analysis of optimized propellers and turbines is presented. The design tool, called OpenProp, is based on well-proven vortex lattice lifting line methods utilized by the US Navy as well as commercial designers. This paper presents the methodology and numerical implementation of OpenProp, with multiple examples of designs, including actual parts fabricated from the code using 3D printing technology.
Experience with carbon fiber tubes in ship propulsion
Authors: Kirschey Gerhard
Published: December 2021

Carbon Fiber Tubes have been used as propulsion shafts for about 20 years and they are finding more and more acceptance. The theory about the design and specification of such tubes has been known for a long time. It has partly been described in the SNAME paper, Propellers/Shafting 97 Symposium in chapter 4 from the same author.

This time the broad experience and design philosophy of such complete shaft lines shall be described and explained by using various samples of several successful applications.
High-end Software for Propulsion Shaft Calculation
Authors: Batrak Yuriy A. , van Leest Martin
Published: December 2021

There are three main problems for engineers specializing in propulsion train calculation. The first problem is a lack of a single shaft model to perform all types of shaft related calculations, the second is the inability to analyze different operation states of propulsion shafting in one click, the third is a substantial disparity between modern knowledge in propulsion train domain and capabilities of software in use. The above-stated reasons provided a starting point for the development of the presented Computer Aided Engineering (CAE) system.
María Alfonso Coronel y la Casa Medina Sidonia. Dando a luz a la mujer detrás de la leyenda
Authors: Llop Carla Torres
Published: December 2021

María Alfonso Coronel nació en 1267 en el seno de una acaudalada familia noble. Fue dada en matrimonio a Alfonso Pérez de Guzmán el Bueno por Alfonso X el Sabio, como premio a los servicios que este había hecho a la Corona de Castilla. María Coronel, vulgarmente llamada la del Tizón, supo administrar de manera diligente el extenso patrimonio que aportó al matrimonio como dote. Hizo las veces de corredora de negocios para su marido y así ella y Guzmán consiguieron ampliar hasta límites insospechados el patrimonio de su Casa. El rey Fernando IV los nombró en 1297 señores de Sanlúcar de Barrameda. La ingente cantidad de títulos y propiedades que tan hábilmente y con tanta pericia supo gestionar María Alfonso Coronel sentaron las bases del futuro ducado de Medina Sidonia, el título ducal hereditario más antiguo de España. La leyenda de los esposos fue llevada a la literatura en repetidas ocasiones.
La voz femenina en Thérèse Philosophe
Authors: Cebrián Flores Juan Antonio
Published: December 2021

Este artículo estudia la voz femenina empleada en la novela libertina Thérèse philosophe (1748), especialmente presente a través de los personajes de Thérèse y Mme Bois-Laurier. En pleno Siglo de las Luces, la voz narrativa femenina hace suyas nuevas reivindicaciones, aunque en muchos casos sean autores masculinos los que le den espacio en sus obras. Thérèse philosophe, novela atribuida a Boyer d’Argens, realiza una crítica contra la hipocresía del clero y defiende la liberación del cuerpo femenino. A través de estos elementos, esta obra intenta liberar a la mujer de las reglas fijas implantadas por una sociedad y una educación tradicional.
Silencing long ascending propriospinal neurons after spinal cord injury improves hindlimb stepping in the adult rat
Authors: Shepard Courtney T , Pocratsky Amanda M , Brown Brandon L , Van Rijswijck Morgan A , Zalla Rachel M , Burke Darlene A , Morehouse Johnny R , Riegler Amberley S , Whittemore Scott R , Magnuson David SK
Published: December 2021

Long ascending propriospinal neurons (LAPNs) are a subpopulation of spinal cord interneurons that directly connect the lumbar and cervical enlargements. Previously we showed, in uninjured animals, that conditionally silencing LAPNs disrupted left-right coordination of the hindlimbs and forelimbs in a context-dependent manner, demonstrating that LAPNs secure alternation of the fore- and hindlimb pairs during overground stepping. Given the ventrolateral location of LAPN axons in the spinal cord white matter, many likely remain intact following incomplete, contusive, thoracic spinal cord injury (SCI), suggesting a potential role in the recovery of stepping. Thus, we hypothesized that silencing LAPNs after SCI would disrupt recovered locomotion. Instead, we found that silencing spared LAPNs post-SCI improved locomotor function, including paw placement order and timing, and a decrease in the number of dorsal steps. Silencing also restored left-right hindlimb coordination and normalized spatiotemporal features of gait such as stance and swing time. However, hindlimb-forelimb coordination was not restored. These data indicate that the temporal information carried between the spinal enlargements by the spared LAPNs post-SCI is detrimental to recovered hindlimb locomotor function. These findings are an illustration of a post-SCI neuroanatomical-functional paradox and have implications for the development of neuronal- and axonal-protective therapeutic strategies and the clinical study/implementation of neuromodulation strategies.
Histone deacetylase 3 represses cholesterol efflux during CD4+ T-cell activation
Authors: Wilfahrt Drew , Philips Rachael L , Lama Jyoti , Kizerwetter Monika , Shapiro Michael Jeremy , McCue Shaylene A , Kennedy Madeleine M , Rajcula Matthew J , Zeng Hu , Shapiro Virginia Smith
Published: December 2021

After antigenic activation, quiescent naive CD4+T cells alter their metabolism to proliferate. This metabolic shift increases production of nucleotides, amino acids, fatty acids, and sterols. Here, we show that histone deacetylase 3 (HDAC3) is critical for activation of murine peripheral CD4+T cells. HDAC3-deficient CD4+T cells failed to proliferate and blast after in vitro TCR/CD28 stimulation. Upon T-cell activation, genes involved in cholesterol biosynthesis are upregulated while genes that promote cholesterol efflux are repressed. HDAC3-deficient CD4+T cells had reduced levels of cellular cholesterol both before and after activation. HDAC3-deficient cells upregulate cholesterol synthesis appropriately after activation, but fail to repress cholesterol efflux; notably, they overexpress cholesterol efflux transporters ABCA1 and ABCG1. Repression of these genes is the primary function for HDAC3 in peripheral CD4+T cells, as addition of exogenous cholesterol restored proliferative capacity. Collectively, these findings demonstrate HDAC3 is essential during CD4+T-cell activation to repress cholesterol efflux.
From digital competence to Professional Digital Competence
Authors: Almås Aslaug Grov , Bueie Agnete Andersen , Aagaard Toril
Published: December 2021

The authors of this article have collaborated as part of a steering group for Norwegian state-funded research and development project designed to enhance the professional digital competence (PDC) of both teacher educators, practising, and student teachers. In this article, we give voice to students’ experiences of their PDC development during teacher education (TE). We investigate their ideas on how TE might be developed to prepare them better for professional careers in a digital context. The participants are studying at a Norwegian university where, from 2018 to 2021, PDC has become a major area of focus as part of the aforementioned project. The data consist of four group interviews with 17 students from different campuses. We find that student teachers employ a broad range of digital technologies during TE. They experience a diversity of digital didactical practices and engage in thematic discussions concerning digitalization. They also utilise many technologies and apply the digital knowledge they have acquired in their personal lives. While some of them request more technical support during TE, most want to see TE engaging them in more critical discussions about the educational opportunities and challenges that digitalization offers. We discuss some of the dilemmas that TE must address to respond to these findings. In particular, we elaborate on how students’ digital experiences can be used as a resource when preparing for their professional roles as teachers.
Factor Influencing Learning Outcome in Nursing Education Using Gamification: A Scoping Review
Authors: An Jiwon
Published: December 2021

Purpose: This review explored trends in studies on learning outcomes in nursing education using gamification, to provide directions for future research.Methods: This scoping review was conducted according to the Joanna Briggs Institute's guidelines. The literature search date was February 1, 2021.Results: Thirty-two studies were included. The largest proportion of studies were quantitative descriptive studies, including qualitative mixed methods (34.4%). More studies applied gamification in practical classes (53.1%) than in theoretical classes. Virtual simulation games (37.9%) and simple quiz games (34.4%) were most often used. Commonly used gamification elements included scores/points, feedback, badges, countdowns, challenges, competitions, and levels. Two themes emerged regarding the impact of gamification on learning: learners’ experiences and achievement outcomes with cognitive, affective, and psychomotor subthemes. Nursing education using gamification improved engagement, motivation, and learning achievement. However, there was less evidence for affective and psychomotor outcomes than for cognitive outcomes.Conclusion: Gamification can be an effective educational strategy if educator's have sufficient understanding and readiness and appropriate gamification elements are applied to nursing education. Further research should investigate knowledge retention in the cognitive domain, collaboration and empathy in the affective domain, and the improvement of nursing skills using new technologies in the psychomotor domain.
Development and Effects of a Nursing Education Program Using Virtual Reality for Enhancing Clinical Decision-Making Ability in Respiratory Disease Nursing Care
Authors: Lee Eun Ju , Ryu Min Jung
Published: December 2021

Purpose: This study was conducted to develop and examine the effects of a nursing education program using virtual reality to enhance clinical decision-making ability in respiratory disease nursing care by assessing students’ confidence in performance, clinical decision-making ability, practice flow, class evaluations, and simulation design evaluations.Methods: This study was developed based on the Jeffries simulation model and 5E learning cycle model, blending a virtual reality simulation and high-fidelity simulation. The participants were 41 third-year nursing students with no virtual reality and simulation education experience. The experimental group (n=21) received the virtual reality program, while the control group (n=20) received traditional simulation education. Data were collected from March 8 to May 28, 2021 and analyzed using SPSS version 27 for Windows.Results: Statistically significant differences were found between the experimental group and the control group post-intervention in confidence in performance (F=4.88, p=.33) and clinical decision-making ability (F=18.68, p＜.001). The experimental group showed significant increases in practice flow (t=2.34, p=.024) and class evaluations (t=2.99, p=.005) compared to the control group.Conclusion: Nursing education programs using virtual reality to enhance clinical decision-making ability in respiratory disease nursing care can be an effective educational strategy in the clinical context.
Eating Difficulties among Older Adults with Dementia in South Korean Long-Term Care Facilities: A Scoping Review
Authors: Jung Dukyoo , Lee Kyuri , Choi Eunju
Published: December 2021

Purpose: This study synthesized the literature on eating difficulties among older adults with dementia in long-term care facilities.Methods: A scoping review, using the framework proposed by Arksey & O'Malley (2005) and supplemented by Levac et al. (2010), was conducted. Literature was searched from RISS, KISS, DBpia, PubMed, and CINAHL. Two reviewers independently selected studies and extracted their characteristics, using pre-tested forms to determine final inclusion. In total, 1283 articles were identified, and 13 articles were used for the final analysis.Results: The Eating Behavior Scale and the Edinburgh Feeding Evaluation in Dementia scale were the most widely utilized measurement tools. The most common factors related to eating behavior in older adults with dementia were cognitive and physical functions in the individual domain, the caregiver's attitude toward eating in the inter-individual domain, and meal type in the environmental domain.Conclusion: Measurement tools reflecting the eating behavior of older adults with dementia must be developed to obtain a comprehensive understanding of this issue and create effective interventions for the specific context of long-term care facilities in Korea. The results of this study are intended to serve as a basis to develop meal support programs for older adults with dementia.
Effects of a Rapid Response Team on the Clinical Outcomes of Cardiopulmonary Resuscitation of Patients Hospitalized in General Wards
Authors: Yoon Mi-Jung , Park Jin-Hee
Published: December 2021

Purpose: This study investigated differences in the clinical outcomes of cardiopulmonary resuscitation (CPR) of patients hospitalized in general wards according to the operation of a rapid response team.Methods: This retrospective study included 122 patients over the age of 19 who were admitted to general ward of a hospital located in Suwon, between July 1, 2015 and December 31, 2019, and received CPR during the operating hours of the rapid response team. The collected data were analyzed by descriptive statistics, the x2 test, Fisher's exact test, and one-way analysis of variance using SPSS for Windows version 25.0.Results: The proportion of nurses who were the initial responders to cardiac arrest was 79.1% during the extended-operation period. 41.2% during the pre-operation period, and 42.2% during the limited-operation period (p<.001). The rate of good neurological recovery at discharge post-CPR was 25.0% in patients who received CPR during the pre-operation period, 36.4% during the limited-operation period, and 87.5% during the extended-operation period (p=.042).Conclusion: This study identified clinical outcomes in patients who received CPR according to the operation status of the rapid response team. These results are expected to help in the further implementation of rapid response teams.
Factors Influencing the Quality of Life among Family Caregivers of the Elderly with Dementia
Authors: Kim Hwasoon
Published: December 2021

Purpose: The purpose of this study was to identify quality of life of family caregivers and to investigate factors positively and negatively affecting family caregivers’ quality of life.Methods: Participants were 153 family caregivers taking care of dementia elderly. Collected data were general characteristics, quality of life, care burden, depression, social support, family relationship, and problematic behaviors. Data were analyzed using descriptive statistics, independent t-tests, Pearson correlation coefficient, and multiple regression.Results: Mean age of participants was 58.70±13.88. The average scores of main variables for family relationship, social support, quality of life, care burden, problematic behaviors and depression were 3.99±1.08, 3.34±0.84, 3.00±0.63, 1.96±0.51, 1.48±1.06, 1.17±0.71 and 1.13±0.61, respectively. In regression analysis, depression (β=-.20), subjective health (β=.26), social support (β=.23), education level (β=-.20), and care burden (β=-.22) accounted for 59.1% of the variance in quality of life.Conclusion: To increase quality of life for family caregivers, interventions should be focused on reducing depression and care burden, enhancing caregiver’s health and social support. especially for family caregivers who received lower education.
СТАДИИ ПЛАЗМЕННОЙ ПЕРЕРАБОТКИ ОТХОДОВ ПРИ ПОЛУЧЕНИИ ВОДОРОДА, "Энергия: экономика, техника, экология"
Authors: Артемов А. В. , Переславцев А.В. , Вощинин С.А. , Тресвятский С.С. , Коробцев С.В.
Published: December 2021

Предложена новая технология плазменной переработки отходов производства и потребления, включающая каталитические стадии углекислотного риформинга (УКР) метана и паровой конверсии монооксида углерода (ПКСО), обеспечивающая переработку отходов, получение водорода, тепловой и электрической энергии, базальтоподобного шлака. Технология реализует замкнутый цикл по диоксиду углерода. Обсуждаются данные о составе и количестве пирогаза, количестве потребляемого CO-плазмообразующего газа, количестве CO, образующегося в газотурбинной установке (ГТУ) при плазменной переработке отходов различного морфологического состава.