bluuebunny/crossref_metadata_2025 huggingface dataset:
MODEL PREDIKSI LEVEL AIR DI LAHAN PERKEBUNAN KELAPA SAWIT DENGAN JARINGAN SARAF TIRUAN BERDASARKAN PENGUKURAN SENSOR RAIN GAUGE DAN ULTRASONIK
Authors: Banna Hasan Al , Apri Nugroho Bayu Dwi
Published: March 2021

Monitoring and regulating water levels in oil palm swamps has an essential role in providing sufficient water for crops and conserving the land to not easily or quickly deteriorate. Presently, water level is still manual and has weaknesses, one of which is the accuracy of the data taken depending on the observer. Technology such as sensors integrated with artificial neural network is expected to observe and regulate water levels. This study aims to build a prediction model of water levels in oil palm plantations with artificial neural networks based on the rain gauge and ultrasonic sensors installed on Automatic Weather Station (AWS). The obtained results showed that the prediction model runs well with an R2 value of 0,994 and RMSE 1,16 cm. The water level prediction model in this research then tested for accuracy to prove the model's success rate. Testing the water level prediction model's accuracy in the dry season obtained an R2 value of 0,96 and an RMSE of 1,99 cm. Testing the water level prediction model's accuracy in the rainy season obtained an R2 value of 0,85 and an RMSE value of 4,2 cm. Keywords : artificial neural network, automatic weather station, palm oil, water level
RECONSTRUCTION AND RESTORATION OF HISTORICAL MONUMENTS: INTERNATIONAL EXPERIENCE
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Pastukh Olga , Gray Timothy ,   Ball State University, Golovina Svetlana ,   Saint Petersburg State University of Architecture and Civil Engineering
Published: March 2021

Introduction: In addition to recognizing and taking into account the vital need for the maintenance and repair of historical structures, this study will focus on their inherent design potential at the intersection of the new and the old. Purpose of the study: The study aims to review the approach to restoring such landmarks as the library in Vyborg and the Arsenal building in the Nizhny Novgorod Kremlin. We will also focus on the restoration of more mundane structures. In addition to historical monuments, this study will look at instances when there is no attempt to return the buildings to some idealized version of the past, but instead, the restoration process is used to celebrate the qualities of the buildings’ age in the here and now, and to recognize that they are living, evolving, and constantly changing entities. Methods: The study uses the method of analysis, which we apply to the standard solutions for various purposes and objects, in the form of structural and technological protection of cultural heritage sites during their restoration and adaptation. The use of modern restoration materials and protective structures’ construction technologies will help protect the environment while taking into account LEED, BREEAM, the Energy Star program (the USA), and the GREEN ZOOM standards. Results: We offer selected examples from contemporary practice in Europe, the United States, and Russia to illustrate these approaches to restoration, including two student-led architectural installations that explore the creative intersection between the new and the old. Discussion: Discussing the execution of specific restoration and reconstruction projects reveals the importance of international cooperation in the development of educational strategies and practices in the field of conserving and restoring the cultural heritage. The growing volume of conservation and restoration work is putting pressure on the development of research approaches and methodologies aimed at solving practical problems. At the same time, the restorer must be mindful of continuity with the past when reconstructing the more mundane and utilitarian structures that can benefit from less restrictive approaches to the intersection of the old and the new.
AUTOMOTIVE SHOCK ABSORBERS’ APPLICABILITY FOR DAMPING RESONANT OSCILLATIONS IN CONSTRUCTION MACHINES
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Repin Sergei , Litvin Roman ,   Saint Petersburg State University of Architecture and Civil Engineering, Kuzmichev Victor ,   Peter the Great St.Petersburg Polytechnic University, Vorontsov Ivan ,   Saint Petersburg State University of Architecture and Civil Engineering
Published: March 2021

Introduction: Many vibration transport and technological machines (VTTM) such as conveyors, screens, crushers, etc. operate in a high-frequency mode, or above resonance. Resonance occurs during machine start and slowdown, resulting in sharply rising values of the amplitude and velocity of oscillations. Resonance affects VTTMs adversely due to increased dynamic loads reducing machinery operating life and reliability and causing the noise. Purpose of the study: We aim to provide a theoretical substantiation for the possibility to apply automotive shock absorbers to VTTM oscillatory process control and develop an example of practical implementation for such a device. Methods: The method of controlling oscillatory processes in VTTMs lies in the use of dual-mode shock absorbers. In the operating mode, shock absorbers offer minimum resistance to motion. In the resonance mode, resistance increases, therefore, the amplitude decreases to a predetermined value. Results: We simulate the VTTM oscillatory process in order to determine the characteristics of a damping device, which ensures the suppression of resonant oscillations but does not affect the vibration operating process. We propose a new technical device implementing the required oscillation characteristics. The device is made in the form of a hydro-pneumatic shock absorber, similar to automotive shock absorbers in terms of design. Such a design makes it possible to offer slight damping of the machine’s useful (operating) vibration, but, at the same time, damping increases significantly in the case of resonant amplitudes. The originality of our study lies in the development of a new type of hydraulic shock absorber, for which a utility model patent has been obtained. The scientific novelty of the study is in the mathematical description of oscillation damping with the new shock absorber, in the development of software for oscillatory process analysis according to the developed mathematical model, and in the results of computer simulation for shock absorber operation.
Stimulation of the dorsolateral-prefrontal cortex improves working memory and planning
Authors: Farzaneh Puladi , Masood Bagheri , Askarizadeh Ghasem , Moradi Afsaneh
Published: March 2021

The present study aimed to investigate whether working memory (WM) and planning performances can be enhanced using transcranial direct current stimulation (tDCS). A total of 30 healthy individuals were randomly assigned to two groups: active (A)-tDCS and control (S)-tDCS. Anodal stimulation over the left dorsolateral prefrontal cortex (DLPFC) (F3) and cathodal stimulation over the right orbitofrontal cortex (OFC) (FP2) were further implemented at 2 mA in the A-tDCS group, while there was no intervention in the control group. The tools used were software versions of the three-level n-back task and Tower of London (TOL) task, and for each task we measured participants’ response accuracy and response time. The results showed a significant difference between the groups in both cognitive functions, suggesting that tDCS can improve response accuracy in memory and problem-solving ability, but it is less effective in terms of improving response time on planning. Overall, findings suggest that tDCS can enhance WM and planning performances.
Pendidikan Era Pandemi COVID-19
Authors:   Departemen Obstetri dan Ginekologi Fakultas Kedokteran Universitas Padjadjaran  Rumah Sakit Dr. Hasan Sadikin Bandung, Anwar Ruswana
Published: March 2021

Sejarah pendidikan profesi kedokteran melalui proses yang panjang dan berliku, membutuhkan upaya berkelanjutan yang lebih baik. Tujuan pendidikan profesi adalah untuk mendidik para profesional mengupayakan penyebaran pengetahuan, mempunyai pola pikir kritis dan perilaku etis, kompeten dalam sistem pelayanan kesehatan perorangan dan masyarakat.Pada era pandemi COVID-19, diperlukan pendekatan sistem reformasi pendidikan professional yang terintegrasi dan kepemimpinan yang lebih baik. Pandemi COVID-19 memberikan dampak menyeluruh termasuk pada pendidikan kedokteran. Sebagian besar rotasi mahasiswa kedokteran terhenti terkait pelayanan rumah sakit berfokus pada penanganan COVID-19 dan pembelajaran tatap muka dikelas serta praktik laboratorium ditunda, mahasiswa belajar secara jarak jauh. Pandemi COVID-19 telah merubah pelayanan publik dan potensi perubahan tatalaksana pendidikan kedokteran. Rotasi penugasan yang tinggi antar bagian dan ke berbagai RS jejaring akan meningkatkan risiko peserta didik sebagai faktor penyebab penyebaran. Meskipun demikian+ peserta didik PPDS juga memegang peranan terbesar pada pelayanan medis di RS pendidikan. Terdapat kekhawatiran yang tinggi peserta didik akan dampak COVID-19 pada proses pendidikan mereka.
Perbandingan Kadar Testosteron dan Lemak Viseral Pasien Sindrom Ovarium Polikistik di Poliklinik Aster RSUP Dr. Hasan Sadikin Bandung Sebelum dan Setelah Pemberian Terapi Metformin
Authors:   Departemen Obstetri dan Ginekologi Fakultas Kedokteran Universitas Padjadjaran  Rumah Sakit Dr. Hasan Sadikin Bandung, Siagian Imelda Rosmaida , Ritonga Mulyanusa Amarullah , Tobing Maringan D.L. , Sukarsa M. Rizkar Arev
Published: March 2021

Tujuan: Terdapat 50-70% kasus sindrom ovarium polikistik yang berkaitan dengan adanya resistensi insulin. Peran agen sensitisasi insulin seperti metformin diharapkan dapat memperbaiki kondisi lemak dan testosteron bebas yang tinggi sehingga memperbaiki gejala klinis pasien dengan sindrom ovarium polikistik. Penelitian ini bertujuan mengetahui perbedaan indeks androgen bebas (sebagai representasi kadar testosteron) dan lemak viseral pasien sindrom ovarium polikistik sebelum dan sesudah diberi pengobatan metformin. Metode: Populasi penelitian didapatkan dari data penelitian DLBS (Dexa Laboratories of Biomolecular Sciences) 3233 yaitu 29 kasus wanita sindrom ovarium polikistik yang datang untuk berobat di Klinik Aster RSUP Dr. Hasan Sadikin Bandung periode Januari 2013 - Desember 2017, dengan menggunakan metode experimental design dengan pendekatan one group pretest-posttest design. Pengambilan sampel penelitian dilakukan secara purposing sampling yang diambil secara retrospektif pada data sekunder yang terdapat dalam rekam medik. Hasil: Didapatkan rata-rata indeks androgen bebas sebelum pemberian terapi metformin 2.67 ± 0.43 dan sesudah pemberian terapi 1.88 ± 0.37. Rata-rata kadar lemak visceral sebelum pemberian terapi metformin 10.27±2.589% dan sesudah pemberian terapi 8.00±1.488%. Kesimpulan: Sehingga disimpulkan terdapat perbedaan signifikan kadar indeks androgen bebas (p:0.008) dan lemak visceral (p:0,0001) pada pasien sindrom ovarium polikistik sebelum dan sesudah pemberian terapi metformin.
Perbandingan Nilai Prediktif antara Risk-of-Malignancy Index (RMI) dan Klasifikasi IOTA Simple Rules dalam Prediksi Keganasan pada Kasus Tumor Ovarium di RSUP Dr. Hasan Sadikin Bandung
Authors:   Departemen Obstetri dan Ginekologi Fakultas Kedokteran Universitas Padjadjaran  Rumah Sakit Dr. Hasan Sadikin Bandung, Toriq Huda , Mulyana Hidayat Yudi , Suardi Dodi
Published: March 2021

Tujuan: Penelitian ini bertujuan untuk mengevaluasi dan membandingkan penerapan dua metode diagnostik yang telah digunakan di RSHS, yaitu skor RMI dan Klasifikasi IOTA Rules untuk memprediksi keganasan suatu tumor ovarium selama periode 2017−2018 Metode: Penelitian ini merupakan penelitian komparatif dengan pengambilan data secara retrospektif. Sumber data diperoleh dari rekam medis pasien yang menjalani operasi pengangkatan dan pemeriksaan histopalogis tumor ovarium. Dilakukan pengumpulan informasi mengenai data USG, kadar CA125, skor RMI, klasifikasi IOTA Simple Rules, dan membandingkannya dengan luaran histopatologis. Hasil: 190 kasus tumor ovarium diteliti. 156 kasus (82,1%) memiliki luaran histopatologis ganas dan 34 kasus lainnya (17.9%) jinak. 178 kasus (93,68%) memiliki skor RMI ≥200 dan 12 kasus (6,32%) <200. sebanyak 78 kasus diklasifikasikan sebagai Malignant, 42 kasus Benign, dan 70 kasus lainnya Inconclusive dengan kriteria IOTA Simple Rules. Distribusi CA125 dan Skor RMI pada kedua kelompok luaran histopatologis berbeda secara bermakna (P<0,05). Sensitivitas dan spesifisitas klasifikasi IOTA Simple Rules di RSHS masing-masing 94,23% dan 97,06%, dengan menggabungkan kelompok IOTA inkonklusif dengan kelompok ganas. Penghitungan sensitivitas dan spesifisitas skor RMI memberikan nilai 95,51% dan 14,71% dengan menggunakan cut-off-point skor RMI 200. Kesimpulan: Sensitivitas dan spesifisitas klasifikasi IOTA Simple Rules lebih baik dibandingkan dengan skor RMI dalam memprediksi keganasan suatu tumor ovarium.
This year, 2020
Authors: Stein Christopher
Published: March 2021

This year, 2020, will no doubt be remembered for a long time to come. Unfortunately, for most people this will not be for very positive reasons. The emergence and spread of SARS-CoV-2 has led to disruptions in every facet of society of a magnitude not experienced before. While this has undoubtedly resulted in much suffering, it has also made all of us adapt in ways that we might have not believed we could. Those who have not given up, and who have stood up to adversity and persevered with whatever resources they had, have perhaps been surprised by the positives it has been possible to take away from months of hardship. The many healthcare workers at the front lines, the teachers, the business owners and workers who kept things going, and many others who kept vital services operational under very difficult conditions.
Effects of the COVID-19 pandemic on the formation of fellows in training in cardiology
Authors: Strangio Antonio , Leo Isabella , Spaccarotella Carmen Anna Maria , Barillà Francesco , Basso Cristina , Calabrò Maria Pia , Curcio Antonio , Filardi Pasquale Perrone , Mancone Massimo , Mercuro Giuseppe , Muscoli Saverio , Nodari Savina , Pedrinelli Roberto , Romeo Francesco , Sinagra Gianfranco , Indolfi Ciro
Published: March 2021

CoronaVIrus Disease-19 (COVID-19) had a huge impact on human health and economy. However, to this date, the effects of the pandemic on the training of young cardiologists are only partially known. To assess the consequences of the pandemic on the education of the cardiologists in training, we performed a 23-item national survey that has been delivered to 1443 Italian cardiologists in training, registered in the database of the Italian Society of Cardiology (SIC). Six hundred and thirty-three cardiologists in training participated in the survey. Ninety-five percent of the respondents affirmed that the training programme has been somewhat stopped or greatly jeopardized by the pandemic. For 61% of the fellows in training (FITs), the pandemic had a negative effect on their education. Moreover, 59% of the respondents believe that they would not be able to fill the gap gained during that period over the rest of their training. A negative impact on the psycho-physical well being has been reported by 86% of the FITs. The COVID-19 pandemic had an unparalleled impact on the education, formation and mental state of the cardiologists in training. Regulatory agencies, universities and politicians should make a great effort in the organization and reorganization of the teaching programs of the cardiologists of tomorrow.
PENERAPAN PDCA DALAM MEMINIMASI DEFECT SALAH VARIAN PANEL DASH JOIN FRONT DI PT.XYZ
Authors: Senoaji Agung Prasetyo , Kosasih M , Nelfiyanti Nelfiyanti , Puteri Renty Anugerah Mahaji
Published: March 2021

PT. adalah perusahaan yang bergerak dibidang otomotif di Indonesia yang memproduksi kendaraan roda empat, salah satunya adalah unit pick up D30N. Dalam proses produksinya, permasalahan utama yang dialami adalah masalah kualitas. Berdasarkan data defect yang didapatkan dari September 2017 hingga Februari 2018, permasalahan utama terdapat pada jalur Under Front yang memiliki defect terbesar yaitu Salah Varian Panel Dash Join Front Floor sebanyak 25 item, yang termasuk dalam kategori defect function. Sedangkan target manajemen untuk defect function yaitu 0 item. Selain itu, defect tersebut menyumbang kerugian akibat part scrap sebanyak 12 pcs dengan jumlah kerugian Rp 1.637.569,- dalam periode September 2017 sampai bulan Februari 2018. Kegiatan perbaikan yang dilakukan untuk mengatasi permasalahan yang ada dengan menerapkan metode Plan-Do-Check-Action (PDCA). Dari hasil analisis penyebab masalah, didapatkan beberapa implementasi perbaikan yaitu dengan menambahkan papan pengecekan WOS, membuat display pengecekan varian, mengurangi buffer stock, membuat identitas penempatan dolly , dan identitas varian pada dolly.Dari kegiatan perbaikan tersebut, defect Salah Varian Panel Dash Join Front Floor dapat diturunkan  dari 25 item menjadi 0 item pada bulan Mei sampai Juni 2018 dan jumlah part scrap dari 12 pcs menjadi 0 sehingga kerugian akibat scrap menjadi menurun. Sehingga target manajemen untuk defect tersebut dapat tercapai.
Oral findings in Coffin-Siris syndrome: A case report
Authors:   Dental School, Federal University of Amazonas, Manaus, Amazonas, Brazil, Figueira Heliton , Medina Pollyanna ,   Dental School, Federal University of Amazonas, Manaus, Amazonas, Brazil, Jesus Giorge ,   Dental School, Federal University of Amazonas, Manaus, Amazonas, Brazil, Hanan Aida ,   Dental School, Federal University of Amazonas, Manaus, Amazonas, Brazil, Júnior Emílio ,   Dental School, Federal University of Amazonas, Manaus, Amazonas, Brazil, Hanan Simone ,   Dental School, Federal University of Amazonas, Manaus, Amazonas, Brazil
Published: March 2021

This paper reports the oral health approach of a child with Coffin-Siris syndrome. This syndrome is a multisystem congenital anomaly caused by mutations in genes of BRG-1-associated factors complex. Individuals with this syndrome have been described with hypoplasia or aplasia of the fifth digit nails or phalanges. Other features include growth deficiency, developmental and intellectual delay, and other organ-system abnormalities. Clinical examination revealed gingival hyperplasia in the upper arch, dental biofilm, and dental caries on the lower deciduous and permanent molars. Guidelines on oral hygiene and dietary habits were provided to the guardians, and tooth extraction and restoration with glass-ionomer cement were performed. This case suggests that these patients require home care and periodic dental consultations for preventive and systematic dental treatment and quality of life improvement. The patient is being monitored, and her oral condition has improved.
Scaling up local climate action: A survey of climate policy priorities in the Vancouver Island and Coastal Communities region
Authors: Rhodes Ekaterina , Krawchenko Tamara , Pearce Katherine , Shaw Karena
Published: March 2021

Regional planning can help functionally-connected communities share expertise and the costs of climate action and amplify collective concerns and needs to upper-level governments. Understanding communities’ climate impacts, policies and barriers to action is foundational to the development of regional-scale climate planning. In support of a nascent climate strategy in the Vancouver Island and Coastal Communities region of British Columbia, our study employs a web-based survey of local government officials (n=106) to identify the existing climate impacts, policy priorities, barriers, and opportunities that guide climate policy-making in the region, including the impacts of the COVID-19 pandemic. We find that nearly all communities have experienced climate-related impacts and have implemented a variety of climate policies. However, local governments face substantial barriers—including a lack of financial resources, authority and staffing capacity—to pursue climate action and planning.
Editorial
Authors: Vivas Reyes Ricardo
Published: March 2021

La primera edición del año 2020 contiene una gran diversidad de artículos científicos. Esta publicación cuenta con 5 artículos, uno proveniente del área de ingeniería ambiental, dos del área de las ciencias económicas y contables, uno perteneciente al área de la filosofía de la ciencia y uno del área de las ciencias sociales.
Análisis de asociación estadística entre variables de herramientas de innovación empresarial y las unidades productivas rurales en el proceso productivo
Authors: Canabal Moreno Libardo Enrique
Published: March 2021

La innovación ha tomado cada día más fuerza como motor de la competitividad empresarial, ocasionando en el sector agroempresarial de Colombia, una alta influencia para que las empresas del sector rural y unidades productivas rurales se centren en la generación e implementación de herramientas para la innovación que permitan agregar valor tanto a sus clientes como a las empresas en sí mismas. Sin embargo, son muchas las empresas rurales que no poseen dichas herramientas de innovación, trayendo como consecuencia una disminución en la productividad. Así lo demuestra el árbol de problemas y de variables. El principal hallazgo ratifica el fuerte vínculo, relación o dependencia entre las variables de estudio (Herramientas de Innovación y Unidad Productiva Rural) gracias al método estadístico de asociación denominado test Chi Cuadrado, constatando la imperiosa necesidad que tienen las unidades productivas del programa Sena Emprende Rural, de innovar para poder mantenerse y competir en mercados globalizados.
Determining the degree of denaturation of bovine serum albumin using a new UV analysis technique
Authors:   Department of Chemistry, University of Guelph, Guelph, Canada, Afaghi Pooya , Lapolla Michael Anthony ,   Department of Chemistry, University of Guelph, Guelph, Canada, Ghandi Khashayar ,   Department of Chemistry, University of Guelph, Guelph, Canada
Published: March 2021

There is a lack of fast and inexpensive analysis methods to study the conformational changes and the degree of denaturation of proteins quantitatively. As such, a novel analytical technique is developed based on the ultraviolet-visible (UV-Vis) absorption spectrum of proteins, and a mathematical modeling of the results. The phenomenon behind this technique is the shift of the absorption peak of amino acid residues of BSA such as tyrosine, phenylalanine, and tryptophan as the protein unfolds and these residues are exposed to the solvent. However, the portion of the peak that is shifted is miniscule and it can be enhanced by using the proposed technique in this paper. As an example, we also show how this technique was applied for evaluating the temperature effects on thermal denaturation of bovine serum albumin (BSA) protein. A degree of denaturation curve as a function of time was obtained at three different temperatures using this technique. The results are reproducible and consistent with those reported in the literature. This technique is especially recommended for analyses where several tests are needed quickly, and the amount of sample is limited. Among the applications, it can be used for evaluation of disinfection through assessing the degree of denaturation for pathogens proteins.
One-pot protocol for the synthesis of quinoxalines from styrenes, o-phenylenediamine and benzo[c][1,2,5]thiadiazole-4,5-diamine using triiodoisocyanuric acid
Authors: Bowroju Suresh Kuarm , Marumamula Hanumaiah , Bavanthula Rajitha
Published: March 2021

Triiodoisocyanuric acid (TICA) controlled one-pot and easy-operational protocol has been developed for the synthesis of substituted phenylquinoxalines (3a-3i) and phenyl-[1,2,5]thiadiazolo[3,4-f]quinoxaline (5a-5f) from styrenes with o-phenylenediamine and benzo[c][1,2,5]thiadiazole-4,5-diamine respectively. The reaction involves co-bromination and oxidation for the formation of an a-bromo ketone as an intermediate in the presence of triiodoisocyanuric acid, followed by condensation with the o-phenylenediamine and benzo[c][1,2,5]thiadiazole-4,5-diamine for the formation of phenylquinoxalines (3a-3i) and phenyl-[1,2,5]thiadiazolo[3,4-f]quinoxaline (5a-5f) in 55-79% yield. This protocol environmentally benign and economically viable. Substituted quinoxalines were obtained in good to excellent yields with wide substrate scope and functional-group tolerance.
Swelling and durability performance of surface-grafted polymer brushes and brush gels
Authors: Demirci Serkan , Kinali-Demirci Selin
Published: March 2021

Polymer brushes and brush gels were prepared by RAFT polymerization. Prepared surfaces were characterized by XPS, AFM, ellipsometry, and water contact angle measurements. The swelling properties and stability of surfaces were compared. It was determined that the swelling ratio decreased with increasing grafting density and cross-linker ratio for polymer brushes and brush gels, respectively. As a result, it was observed that cross-linked polymer brushes were more stable than polymer brushes, and the stability and swelling properties of polymer brushes could be controlled by cross-linking.
How ab initio Molecular Dynamics Can Change the Understanding on Transition Metal Catalysed Water Oxidation
Authors: Schilling Mauro , Ketkaew Rangsiman , Luber Sandra
Published: March 2021

Artificial water splitting is a promising technology that allows the storage of renewable energy in the form of energy-rich compounds. This mini-review showcases how theoretical studies contribute to the under-standing of existing water oxidation catalysts (WOCs) as well as inspiring
the development of novel WOCs. In order to understand the chemical complexity of transition metal complexes and their interaction with the solvent environment, the use of sophisticated simulation protocols is necessary. As an illustration, a family of ruthe- nium-based WOCs is presented which
were investigated employing a wide range of forefront computational methods with emphasis on ab initiomolecular dynamic based approaches. In those studies a base assisted oxygen–oxygen bond formation was identified as the energetically most favourable reaction mechanism. By examining
the role of local environmental effects at ambient temperature and the effect of modifications in the ligand framework, a comprehensible picture of the WOCs can be given, where the latter can serve as a guideline for further experimental and computational studies. In this mini-review, we provide
a description of the methods, and the findings of our previous computational studies in compacted form, aimed at scientists with a theoretical as well as experimental background.
Elephants in the Room, Part 2: Gymnastics for Elementary Particles
Authors: Williams Alan F.
Published: March 2021

The transfer of electrons and protons is compared. Electron transfer over long distances is possible through a series of relays. The range of proton transfer is an order of magnitude less than for electrons but it may be directed along hydrogen bonds.
Keeping SARS-CoV-2 out: Vaccines, Filters, and Self-disinfecting Textiles
Authors: Eibl Dieter , Heldal Trond , Opitz Sebastian E.W. , Yeretzian Chahan , Hirsch Sven , Stübinger Stefan , Richner Gilles , Keel Nik , Walton Senta , Bachmann Martin , Eibl Regine , Sievers Martin , Adlhart Christian
Published: March 2021

When the SARS-CoV-2 pandemic started,[1] science came to the immediate attention of the broad public. People and politicians were hanging on every word of medical doctors, virologists, molecular biologists, data scientists and many others in the hope of finding other protective
measures than those used for centuries such as basic hygiene, distance, or quarantine. Here, at the Institute of Chemistry and Biotechnology at the Zurich University of Applied Sciences (ZHAW) we were also willing to provide scientific solutions to overcome the pandemic. Together with our
partners from industry, we contributed to the development of a Swiss vaccine, are working on filters for active ventilated full protective suits and are developing tests to show the efficacy and safety of an active antiviral textile that allows controlled virus inactivation through an electrochemical
reaction by applying a small current.
Synthesis and styrene copolymerization of novel trisubstituted ethylenes: 3. Oxy ring-substituted octyl phenylcyanoacrylates
Authors: Ahmad Zena , Asilturk Burcin , Fasman Dana R. , Hocker Erin R. , Markey Sean P. , Martinez Karina , Owens Aisha , Ramirez Jasmine S. , Rios Oscar , Villegas David , Wiley Jack N. , Winders Lindsay M. , Rocus Sara M. , Schjerven William S. , Kharas Gregory
Published: March 2021

Novel trisubstituted ethylenes, oxy ring-substituted octyl phenylcyanoacrylates, RPhCH=C(CN)CO2CH2(CH2)6CH3 (where R is 3-phenoxy, 4-phenoxy, 4-(4-bromophenoxy), 3-(4-chlorophenoxy), 2-(4-fluorophenoxy), 3-(4-methylphenoxy), 4-(4-methylphenoxy), 4-(4-nitrophenoxy), 3-[3-(trifluoromethyl)phenoxy], 2-benzyloxy, 3-benzyloxy, 4-benzyloxy) were prepared and copolymerized with styrene. The ethylenes were synthesized by the piperidine catalyzed Knoevenagel condensation of ring-substituted benzaldehydes and octyl cyanoacetate, and characterized by CHN analysis, IR, 1H and 13C NMR. All the ethylenes were copolymerized with styrene in solution with radical initiation (ABCN) at 70°C. The compositions of the copolymers were calculated from nitrogen analysis.
Advanced Solid State Nano-electrochemical Sensors and System for Agri 4.0 Applications
Authors: Seymour Ian , Narayan Tarun , Creedon Niamh , Kennedy Kathleen , Murphy Aidan , sayers Riona , kennedy emer , O'Connell Ivan , Rohan James , O'Riordan Alan
Published: March 2021

Global food production needs to increase in order to meet the demands of an ever growing population. As resources are finite, the most feasible way to meet this demand is to minimize losses and improving efficiency. Regular monitoring of factors like animal health, soil and water quality for example, can ensure that the resources are being used to their maximum efficiency. Existing monitoring techniques however have limitations, such as portability, turnaround time and requirement for additional reagents. In this work, we explore the use of micro and nano scale electrode devices, for the development of electrochemical sensing platform to digitalize a wide range of applications within the Agri-food sector. With this platform, we demonstrate the direct electrochemical detection of pesticides, specifically clothianidin and imidacloprid with detection limits of 0.22 ng/mL and 2.14 ng/mL respectively, and nitrates with a detection limit of 0.2 µM. In addition, interdigitated electrode structures also enable an in-situ pH control technique to mitigate pH as an interference and modify analyte response. This technique is applied to the analysis of monochloramine, a common water disinfectant. Concerning biosensing, the sensors are modified with biomolecular probes for the detection of both bovine viral diarrhea virus particles and antibodies, over a range of 1 ng/mL to 10 µg/mL. Finally, a portable analogue front end electronic reader is developed to allow portable sensing, with control and readout undertaken using a smart phone application. Finally, the sensor chip platform is integrated with these electronics to provide a fully functional end-to-end smart sensor system compatible with emerging AgriFood digital decision support tools.
AccuCor2 Isotope Natural Abundance Correction for Dual-Isotope Tracer Experiments
Authors: Wang Yujue , Parsons Lance , Su Xiaoyang
Published: March 2021

Stable isotope labeling techniques have been widely applied in the field of metabolomics and proteomics. Before the measured mass spectrum data can be used for quantitative analysis, it must be accurately corrected for isotope natural abundance and tracer isotopic impurity. Despite the increasing popularity of dual-isotope tracing strategy such as 13C-15N or 13C-2H, there is no accurate tool for correcting isotope natural abundance for such experiments. Here, we present AccuCor2 as an R-based tool to perform the correction for 13C-15N or 13C-2H labeling experiments. Our results show that the dual-isotope experiments often require a mass resolution that is high enough to resolve 13C and 15N or 13C and 2H.Otherwise the labeling pattern is not solvable. However, this mass resolution may not be sufficiently high to resolve other non-tracer elements such as oxygen or sulfur from the tracer elements. Therefore, we design AccuCor2 to perform the correction based on the actual mass resolution of the measurements. Using both simulated and experimental data, we show that AccuCor2 performs accurate and resolution dependent correction for dual-isotope tracer data.
Melt Electrowriting of Poly(vinylidene Fluoride-Co-Trifluoroethylene)
Authors: Kade Juliane , Tandon Biranche , Weichhold Jan , Pisignano Dario , Persano Luana , Luxenhofer Robert , Dalton Paul
Published: March 2021

Poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-co-TrFE)) is an electroactive polymer with growing interest for applications in biomedical materials and flexible electronics. In this study, a solvent-free additive manufacturing technique called melt electrowriting (MEW) has been utilized to fabricate well-defined microperiodic structures of P(VDF-co-TrFE). Melt electrowriting of the highly viscous polymer melts was initiated using a heated collector at temperatures above 120 °C and required remarkably slow collector speeds below 100 mm/min. This contribution shows electrohydrodynamic processing of fibers with micrometer resolution into defined structures with an important electroactive polymer.
STUDY OF INTEGRATION TECHNIQUE OF OPTICAL DRA ANTENNA FOR VARIOUS BAND
Authors: Mohan Anand
Published: March 2021

The dielectric resonator antenna technologies are applicable to design various band level or various types of simulation with low return loss of antenna design. In this paper we have taken several aspect ion of antenna results which has been investigated. The Research Article Concentrated on optical DRA Antenna and performance simulation result is improved with some configurable improvement. The wireless communication system has mainly demanding requirements to improve return loss. Antenna made up of materials has abled to improve its potential performance with high level enhancement. Although most of the optical antenna use 5 nm or less than 5 nm diameters because carbon nanotube become superior conductor at 5 nm diameters. Optical antenna is substitute of traditional antenna or generate model antenna. Which include light – matter interaction, absorption & emission of light which can control its special direction as well as control of its complex non analytic algorithms they behave like strong coupled light emitting devices like photovoltaic.
A NEW AND SUSTAINABLE PKL ELECTRICITY
Authors: Khan K. A. , Islam Shahinul , Saime M. A. , Rasel S. R. , Hossain Sazzad
Published: March 2021

A new method of electricity generation based on Pathor Kuchi Leaf (Genus: Kalanchoe, Section: Bryophyllum) has been developed at the Department of Physics, Jagannath University, Dhaka- 1100, Bangladesh. This electricity generation method has several advantages for smart grid over the conventional electricity production. This sustainable method is likely to generate the employment at particularly in the rural areas of where grid electricity is absent. This research work reports an invention made on Pathor Kuchi Leaf (PKL) electric power plant to enhance the PKL electricity production. The efficiency of the PKl electricity production device, Short Circuit Current ( Isc ), Open circuit Voltage ( Voc ), Temperature effect of the PKL malt, pH of the PKL malt, Titratable acidity of the PKL malt, Generation of PKL electricity, Storage system of the PKL electricity, Particular utilization of PKL electricity, I-V characteristics of the PKL, Classification of PKL, Longevity of PKL malt for PKL electricity generation, Preparation of PKL electric unit cell, module, panel, arrays and the constituent elements of the PKL, Voltage regulation, Internal resistance of the cell and efficiency of the cell have been studied. The chemical reactions of the PKL electrochemical cell have also been studied. In experimental study, it is shown that the maximum efficiency of the PKL electricity production device is ≈ 34%, the pH of the PKL malt is ≈ 4.6(without water), pH of the PKL malt is ≈ 4.8 (with 10% solution), the titratable acidity of the PKL malt is ≈ 0.88%. Most of the results have been tabulated and graphically discussed.
DGCR8 deficiency impairs macrophage growth and unleashes the interferon response to mycobacteria
Authors: Killy Barbara , Bodendorfer Barbara , Mages Jörg , Ritter Kristina , Schreiber Jonathan , Hölscher Christoph , Pracht Katharina , Ekici Arif , Jäck Hans-Martin , Lang Roland
Published: March 2021

The mycobacterial cell wall glycolipid trehalose-6,6-dimycolate (TDM) activates macrophages through the C-type lectin receptor MINCLE. Regulation of innate immune cells relies on miRNAs, which may be exploited by mycobacteria to survive and replicate in macrophages. Here, we have used macrophages deficient in the microprocessor component DGCR8 to investigate the impact of miRNA on the response to TDM. Deletion of DGCR8 in bone marrow progenitors reduced macrophage yield, but did not block macrophage differentiation. DGCR8-deficient macrophages showed reduced constitutive and TDM-inducible miRNA expression. RNAseq analysis revealed that they accumulated primary miRNA transcripts and displayed a modest type I IFN signature at baseline. Stimulation with TDM in the absence of DGCR8 induced overshooting expression of IFNβ and IFN-induced genes, which was blocked by antibodies to type I IFN. In contrast, signaling and transcriptional responses to recombinant IFNβ were unaltered. Infection with liveMycobacterium bovisBacille Calmette–Guerin replicated the enhanced IFN response. Together, our results reveal an essential role for DGCR8 in curbing IFNβ expression macrophage reprogramming by mycobacteria.
Políticas públicas para el control de enfermedades transmitidas por vectores en México
Authors: Juache Villagrana Alan Esteban , Flores Suárez Adriana E
Published: March 2021

Las enfermedades transmitidas por vectores (ETV) persisten como un problema nacional de salud pública. A fin de disminuir su impacto, existen políticas públicas dirigidas al manejo de estas infecciones. Las soluciones propuestas, así como su implementación, se estipulan dentro de documentos como la ley general de salud (LGS) y normas oficiales mexicanas (NOM). Pese a que la ejecución de las políticas públicas ha conducido a resultados favorables en contra de las ETV, existen nuevas pautas internacionales establecidas por la Organización Mundial de la Salud (OMS) que incrementarían la eficacia de las políticas actuales. Objetivo: Contrastar las acciones estipuladas en las políticas públicas mexicanas del 2000 a 2020 para el combate a las ETV contra las directrices internacionales actuales. Conclusiones: La mayoría de las actividades en contra de las ETV recaen dentro del control de vectores, mismo que al ser comparado con las directrices de la OMS exhibe áreas de oportunidad en la escala de aplicación, uso de insecticidas, participación comunitaria, investigación, entre otras. Bajo este escenario, las políticas públicas deben actualizarse para incluir nueva información propuesta por organismos internacionales.
Controlling Culex Quinquefasciatus Say, 1823 (Diptera: Culicidae) Using Several Lysinibacillus Sphaericus Isolates Endogenic to Indonesia
Authors: Indayati Ika , Purwanto Hari
Published: March 2021

Mosquito-borne diseases include tropical diseases such as malaria, filariasis, dengue fever, chikungunya, yellow fever and cerebral fever are still major health problems in Indonesia and on a global scale. Various methods have been used to overcome this, including controlling vector mosquitoes using the entomopathogenic microbial Lysinibacillus sphaericus. This study aims to identify bacterial isolates collected based on the 16S rRNA gene and to carry out the pathogenicity test of the bacterial isolates collected on Cx. quinquefasciatus larvae. Bacterial isolates used in this study were collected from root soil, bird droppings and guano. The identification of the type of bacteria was carried out based on the 16S rRNA gene fragment. Based on the results of the 16S RNA sequence analysis of isolates 229C, 6B4, 6.2 and 4D21, it was found that the four isolates were included in the L. sphaericus species with similarity scores ranging from 97% to 100%. The pathogenicity of bacteria was measured based on the mortality of Cx. quinquefasciatus larvae to know whether it has pathogenicity equal to or higher than strain 1593. The pathogenicity test results of 6 isolates 15.4, 229C, 1593, 6B4, 6.2 and 4D21 showed that isolate 15.4 has the highest larval mortality rate, so it is potentially used as a biological agent to control disease vector mosquitoes.
Desemprego
Authors: Vervier Jacques Hilaire
Published: March 2021

O atual debate social apresenta geralmente o desemprego como o resultado conjugado de três fatores emergentes: a mundialização dos mercados, que provoca uma reestruturação da produção, a introdução de uma tecnologia que utiliza cada vez menos mão-de-obra e o fim de uma era de crescimento económico sustentado, que garante o pleno emprego
PENERAPAN MODEL DISCOVERY LEARNING PADA PEMBELAJARAN MATEMATIKA SISWA SEKOLAH DASAR
Authors: Prasasty Nike , Utaminingtyas Siwi
Published: March 2021

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan model Discovery Learning terhadap  hasil belajar Matematika pada materi bangun datar siswa Sekolah Dasar. Penelitian ini menggunakan jenis penelitian kuantitatif dengan pendekatan Quasi Experimental Design jenis Noneequivalent Control Group Design. Penelitian ini merupakan penelitian populasi. Teknik pengumpulan data menggunakan tes dan observasi. Analisis data dengan uji releted sample t-test dan uji regresi. Berdasarkan hasil penelitian disimpulkan bahwa ada perbedaan dan pengaruh penggunaan model Discovery Learning terhadap  hasil belajar Matematika pada materi bangun datar siswa Sekolah Dasar. Hal ini ditandai dengan perhitungan rata-rata hasil belajar kelompok eksperimen sebesar 74,22 lebih tinggi dari rata-rata hasil belajar kelompok kontrol yaitu sebesar 26,63. Berdasarkan analisis t-test dapat diketahui bahwa nilai t 8,893 > 2,052 dan nilai Sig. 0,000 < 0,025 sedangkan pada uji regresi dapat diketahui bahwa nilai 2,060 > 2,052 dan nilai Sig. 0,953 > 0,05.
EFEKTIVITAS MEDIA PEMBELAJARAN ADOBE FLASH TERHADAP KETERAMPILAN MENYANYIKAN LAGU DAERAH PADA KELAS III SD
Authors: Yuwono Pratik Hari , Febrianta Yudha
Published: March 2021

Abstract. Multimedia-based learning in elementary schools created in applications to help teachers in art teaching and senior evaluations conducted in learning to make it more interesting. The purpose of this study was to study the effect of adobe flash learning media on the singing skills of folk songs in class III at Muhammadiyah University, Purwokerto. The research subjects used class III students with a total of 24 students. Research methods using experimental research methods. Data analysis using normality test, homogeneity test and hypothesis test. The results of the data analysis and discussion of the results of the study can be concluded about the Adobe Flash learning media on the singing skills of folk songs in class III at Muhammadiyah University, Purwokerto. The results of the first hypothesis test manually, namely tcount> ttable or 2.750> 2.017.
TÜRKİYE’DE KAMU POLİTİKASI OLUŞTURMA SÜRECİNDE GÜNDEM BELİRLEME: SAĞLIKTA DÖNÜŞÜM PROGRAMINA YÖNELİK BİR İNCELEME
Authors: ÇETİN Fatma Gökçen
Published: March 2021

Gündem belirleme toplumsal ihtiyaç ve sorunların çözümü için üretilen kamu politikasının temel aşamasıdır. Bu çalışma gündem belirlemenin kamu politikası disiplini çerçevesinde nasıl algılandığını irdelemekte ve öne çıkan gündem belirleme modelleri çerçevesinde siyasal gündemin nasıl formüle edildiğini ele almaktadır. Türkiye’de kamu politikası gündemi çeşitli dinamiklerle belirlenmektedir. Ekonomik krizler, uluslararası örgütler, çok uluslu şirketler ve siyasal iktidarın ideolojik yönelimi bu dinamiklerin başlıcalarıdır. Çalışmada, söz konusu dinamikler çerçevesinde bir kamu politikası olarak sağlık politikasının oluşturulmasında gündemin nasıl belirlendiği ele alınmıştır.
ANALISIS IMPLIKATUR PERCAKAPAN DALAM DORAMA DORAEMON THE MOVIE “STANDBY ME” (KAJIAN PRAGMATIK)
Authors: Rofi'ah Dewi Nur , Poerbowati Endang
Published: March 2021

Abstrak: Dalam penelitian ini akan ditelaah tentang implikatur percakapan berdasarkan pada drama komik.  Hal ini dikarenakan bahasa yang digunakan dalam komik adalah bahasa yang dipakai sehari-hari. Oleh karena itu, penulis ingin menelaah implikatur percakapan berdasarkan pada dorSama Doraemon The Movie “Standby me”. Dalam penelitian ini penulis memfokuskan pada dua rumusan  masalah. Pertama, apa saja jenis-jenis implikatur percakapan yang terdapat dalam dorama Doraemon  The Movie ”Standby me”? kedua, bagaimanakah  pelanggaran maksim yang terdapat di dalam implikatur percakapan dorama Doraemon  The Movie ”Standby me”? Penelitian ini  menggunakan metode deskriptif kualitatif. Hasil dari penelitian ini penulis menemukan 3 jenis implikatur percakapan diantaranya adalah implikatur percakapan umum, berskala dan khusus. Dan ada 4 pelanggaran maksim yaitu maksim cara, maksim kualitas, maksim relevansi dan  maksim kuantitas.Kata kunci: Implikatur, Percakapan, Doraemon, Pragmatik Abstract: In this research, we will examine the conversational implicature based on comic drama. This is because the language used in comics is the language used daily. Therefore, the author would like to examine the implications of conversations based on dorSama Doraemon The Movie "Standby me". In this study the authors focus on two problem formulations. First, what are the types of conversational implicature in Doraemon The Movie's drama "Standby me"? second, how is the maxim violation contained in Doraemon The Movie's speech implications "Standby me"? This study used descriptive qualitative method. The results of this study the authors found 3 types of conversational implicature include general, scale and special conversational implicature. And there are 4 violations of the maxim that is the maxim of the way, the quality of the maxim, the maxim of relevance and the maxim of the quantity.Keywords: Implicature, Conversation, Doraemon, Pragmatics