bluuebunny/crossref_metadata_2025 huggingface dataset:
Principles of the tree risk management plan in Poland
Authors: Rosłon-Szeryńska Edyta , Gawłowska Agnieszka
Published: February 2020

Zasady planowania zarządzania ryzykiem związanym z drzewami w Polsce. Drzewa są ważnym elementem w przestrzeni zurbanizowanej, a ich obecność w miastach przynosi wiele korzyści. Drzewa mogą jednak stanowić zagrozenie dla ludzi i mienia. Ważne jest, aby oszacować ryzyko powstania wypadku oraz szkód spowodowanych wiatrołomami i wywrotami w celu ochrony bezpieczeństwa lokalnego. Ogólnym celem programu zarządzania ryzykiem związanym z drzewami jest zmniejszenie prawdopodobieństwa wystąpienia szkody do poziomu ryzyka akceptowalnego. Systemy zarządzania ryzykiem związanym z drzewami rozwijają się szybko, szczególnie w Niemczech i Stanach Zjednoczonych. Celem niniejszych badań jest rozpoznanie, jak działa i czy istnieje system zarządzania ryzykiem obejmujący problem upadających i łamiących się drzew. Przeprowadzono sondaż w postaci ankiety elektronicznej wśród jednostek samorządu terytorialnego. Odpowiedzi uzyskano od 422 gmin o różnym charakterze: gminy miejskie (15,9% respondentów), gminy miejsko-wiejskie (25,6% ankietowanych) i gminy wiejskie (58,5%). Kwestionariusz został przygotowany w formie 25 pytań zamkniętych i 4 pytań otwartych. Przeprowadzone badania wykazały, że choć w Polsce prowadzi się przegląd drzew zwłaszcza rosnących przy drogach i ulicach, to jednak nie obowiązują żadne standardy i procedury przebiegu tej oceny. Nie ma systemu zarządzania ryzykiem związanym z drzewami. Nie określa się priorytetów, częstotliwości i zakresu prowadzonej kontroli drzew w zależności od ich kondycji, miejsca, w którym rosną, ani poziomu zagrożenia, jakie stwarzają. W efekcie badań przedstawiono wskazania do wprowadzenia systemu zarządzania ryzykiem związanym z drzewami. Wytyczne i wskazania do prowadzenia monitoringu drzew powinny być zawarte w programach ochrony środowiska dla gmin i administratorów terenów zieleni lub w innych dokumentach zawierających plany zakładania i utrzymania zadrzewień wprowadzanych w życie na mocy uchwał i zarządzeń. System zarządzania ryzykiem związanym z drzewami może być także składnikiem strategii bezpieczeństwa.
Historia y fantasía: la revalorización de la teoría psicoanalítica en Joan Scott
Authors: Veleda Juan
Published: February 2020

El presente artículo tiene como objetivo indagar sobre un aspecto, poco conocido en nuestro país, de la obra de la historiadora Joan Scott, una figura central en el escenario de la teoría feminista y la historiografía desde los años ochenta. Se trata de lo que algunxs han denominado el “giro psicoanalítico”, esto es, la revalorización, en sus últimos textos, de algunas categorías de la teoría psicoanalítica para su proyecto de constituir una historia crítica feminista. En este sentido, se intentarán trazar los motivos que la llevaron, hacia fines de los años noventa, a la rehabilitación del potencial del psicoanálisis como perspectiva teórica, más allá del rechazo que evidencian sus primeros trabajos. Luego, el artículo se centrará principalmente en el modo en que Scott retoma el concepto de „fantasía‟ para complejizar los vínculos entre género, historia e identidad.
El derecho de peticionar ante las autoridades y el amparo por mora como respuesta al silencio de la Administración
Authors: Ross Zarina E.
Published: February 2020

En el presente trabajo se analiza el instituto del amparo por mora como herramienta con la que cuenta el ciudadano frente al silencio de la Administración Pública cuando éste ha ejercido su derecho de peti­cionar ante las autoridades consagrado constitucional y convencional­mente. Así, concretamente se intenta trazar la evolución jurisprudencial en la Provincia de Tierra del Fuego con relación al instituto, haciendo especial referencia quién debe soportar las costas en dicho proceso judicial.
El art. 73 del Convenio Colectivo de Trabajo de Docentes Universitarios. La estabilidad como premisa
Authors: Berardi Alejandro Emilio
Published: February 2020

La propuesta de este trabajo consiste en realizar un aná­lisis de la cláusula transitoria agregada como art. 73 en el Convenio Colectivo de Trabajo de los Docentes Universitarios -en adelante CCT-, a partir de la experiencia vivida en la Universidad Nacional de Mar del Plata (UNMdP), en donde luego de casi dos años de discusión en el mar-co de la paritaria de nivel particular se suscribió un acuerdo estable­ciendo diversos mecanismos para el ingreso de los docentes interinos comprendidos en la citada la citada cláusula. En el entendimiento de que el CCT constituye una formidable oportunidad para avanzar en el reconocimiento de los derechos laborales de los trabajadores docentes universitarios, el referido art. 73 puede considerarse un verdadero pilar. En efecto, el primer derecho, básico, elemental, que debemos exigir y proteger, es el derecho a la estabilidad. Esta norma propicia el ingreso a la carrera docente de miles de trabajadores que hoy se desempeñan en forma precaria, con designaciones interinas, que requieren periódi­cas renovaciones y sujetos en muchos casos a innumerables presiones.
El derecho penal como herramienta de castigo contra las mujeres que se apartan de su rol: ¿Buenas o malas madres?
Authors: Trillo Verónica S. , Sánchez John A. Carlin
Published: February 2020

En una sociedad atravesada por diferentes mandatos patriarcales, el derecho no escapa a este fenómeno. Más bien, contribuye en la reproducción de este sesgo patriarcal al establecer parámetros de aquello que se debe –o no– hacer, de aquellos comportamientos que se espera de una “buena mujer” y, además, de cuál deberá ser su rol –o lo que se espera de aquella– dentro de la sociedad. Por tanto, el resultado que obtendremos en este contexto será un derecho androcéntrico que transforma, reproduce y legitima determinadas prácticas, desde la creación, interpretación y aplicación de diferentes normas con consecuencias gravosas para las mujeres.
Análisis de los decretos emitidos por el Poder Ejecutivo de la Provincia de Buenos Aires durante el año 2018
Authors: En Derecho Crítico (CIDERCRIT) Centro de Investigación
Published: February 2020

Esta investigación fue incorporada a las líneas de trabajo del Centro de Investigación en Derecho Crítico (CIDERCRIT) de la Facultad de Ciencias Jurídicas y Sociales de la Universidad Nacional de La Plata, bajo la dirección de Esteban Taglianetti.
ZAKAT DALAM PERSPEKTIF KEBIJAKAN FISKAL
Authors: Arafah Muh.
Published: February 2020

Zakat is an important part of a wealth distribution system given by God in a fair and detailed manner for the benefit of humanity. Islamic principles of fiscal policy aim at developing a society based on the balanced wealth distribution by placing material and spiritual values at the same level, equally. One of the goals of zakat expenditure in Islamic fiscal policy is to provide for the needy and poor people in addition to paying the zakat collectors.
Starfshættir í framhaldsskólum: Aðdragandi og framkvæmd rannsóknar 2012–2018
Authors: Óskarsdóttir Gerður G.
Published: February 2020

Rannsóknin Starfshættir í framhaldsskólum fór fram á árunum 2012–2018. Hún var samstarfsverkefni rúmlega 20 manna hóps rannsakenda, bæði kennara og nemenda við Menntavísinda- og Félagsvísindasvið Háskóla Íslands með aðsetur á Rannsóknastofu um þróun skólastarfs á Menntavísindasviði. Rannsóknin var hluti af norræna öndvegissetrinu Justice through Education (JustEd, e.d.) sem styrkt var af NordForsk. Meginmarkmið rannsóknarinnar var að varpa ljósi á starfshætti í framhaldsskólum og þann bakgrunn og þau öfl sem móta þá. Athyglin beindist einkum að skipulagi og stjórnun skóla og skólastarfs, námi og kennslu, námsumhverfi og viðhorfum nemenda, kennara og stjórnenda til skólastarfsins. Gagna var aflað árin 2013–2014 í níu framhaldsskólum víða um land sem voru valdir með lagskiptu slembiúrtaki. Fyrir liggja vettvangslýsingar á 130 kennslustundum (167 klukkustundum), skráð viðtöl við stjórnendur, kennara og nemendur, alls 61 að tölu við samtals 100 manns, 111 sett ljósmynda úr mannlausum kennslurýmum og 90 náms- eða kennsluáætlanir, auk opinberra gagna sem safnað var. Í þessu sérriti eru birtar tíu greinar sem byggjast á fyrrnefndum gögnum. Auk þeirra eru þrjár greinar eftir þátttakendur í rannsóknarhópnum sem byggjast á öðrum gögnum, ein þeirra á rætur í rannsókninni Skilvirkni framhaldsskóla, en tvær eru hluti af rannsókninni Framhaldsskólaval í Reykjavík og Helsinki. Rannsóknarhópurinn væntir þess að niðurstöður verði nýttar við mótun og skipulag þróunarstarfs í framhaldsskólum, við stefnumótun og þróun skólakerfisins í heild og að þær gagnist við bæði grunn- og símenntun kennara. Ráðgjöf um nýtingu niðurstaðna í þróunarstarfi er hluti af verkefninu, ef skólar óska eftir.
Ólíkur félagslegur og menntapólitískur veruleiki íslenskra framhaldsskóla: Nám til stúdentsprófs í 20 ár af sjónarhóli framhaldsskólakennara og -stjórnenda
Authors: Bergsdóttir Ásgerður , Magnúsdóttir Berglind Rós
Published: February 2020

Lengi framan af var framhaldsskólamenntun til stúdentsprófs aðeins fyrir fáa útvalda úr efri lögum samfélagsins. Með tímanum jókst aðgengið og nú er framhaldsskólum á Íslandi skylt að mennta öll ungmenni undir 18 ára aldri sem lokið hafa grunnskólaprófi. Stór hluti þeirra þreytir stúdentspróf. Nám til stúdentsprófs hefur þróast og breyst undanfarna áratugi og þar kemur ekki eingöngu til stækkandi hópur nemenda sem sækja framhaldsskólann heldur ekki síður tilteknir alþjóðlegir menntastraumar og samfélagsbreytingar sem hafa sett mark sitt á kerfið. Þessar breytingar hafa snert framhaldsskólana og starfsaðstæður innan hvers þeirra en þó með misjöfnum hætti. Með þessari rannsókn var ætlunin að skoða starfsaðstæður kennara og stjórnenda; a) hvort og þá hvernig þær hefðu breyst á 20 ára tímabili, b) hvort og þá hvernig hugmyndir viðmælenda mörkuðust af ólíku félagslegu samhengi og markaðsstöðu skóla og c) hvort munur væri á upplifun kennara annars vegar og stjórnenda hins vegar. Rannsóknin byggðist á einstaklingsviðtölum við átta reynda kennara og stjórnendur í fjórum íslenskum framhaldsskólum. Val á framhaldsskólum í rannsókninni miðaðist við skóla með annaðhvort hátt eða lágt höfnunarhlutfall við inntöku. Í ljós kom verulegur munur milli skóla eftir höfnunarhlutfalli. Stefnubreytingar stjórnvalda varðandi styttingu og fræðsluskyldu orkuðu ólíkt á skóla eftir markaðsstöðu þeirra þó að allir viðmælendur hafi verið neikvæðir gagnvart henni. Hins vegar voru aðrar breytingar sem orkuðu með svipuðum hætti á viðmælendur, eins og aukið álag og foreldrasamstarf og almenn ánægja með hækkun sjálfræðisaldurs. Munur á skoðunum og viðhorfum kennara og stjórnenda var lítill og frekar að skoðanir væru skiptar milli skóla en milli viðmælenda innan sama skóla.
Nemendamiðað námsumhverfi: Hugmyndir framhaldsskólanemenda um kjöraðstæður til náms
Authors: Sigurðardóttir Anna Kristín , Magnúsdóttir Sigrún Harpa
Published: February 2020

Í þessari rannsókn er leitast við að varpa ljósi á hugmyndir framhaldsskólanemenda um kjöraðstæður til náms samanborið við þær aðstæður sem þeir búa við og möguleika þeirra til að hafa áhrif þar á. Áhrif nemenda á eigið námsumhverfi tengjast hugmyndum um nemendamiðað nám og þeim er meðal annars ætlað að efla skuldbindingu nemenda gagnvart skólastarfinu. Gögnum var safnað í níu framhaldsskólum með viðtölum, vettvangsathugunum í skólastofum og ljósmyndum. Tekin voru hópviðtöl við nemendur og þeir beðnir að forgangsraða myndum af ýmsum aðstæðum í skóla með hliðsjón af því hvernig þær hentuðu við nám að þeirra mati. Niðurstöður úr þeirri umræðu voru bornar saman við aðstæður eins og þær birtust rannsakendum í skólastofunni. Helstu niðurstöður benda til þess að algengast sé að í kennslustundum sitji nemendur við einstaklingsborð í röðum þar sem allir snúa andliti í sömu átt, vel þekktar aðstæður í íslensku skólaumhverfi. Nemendum fannst aftur á móti best að læra í umhverfi þar sem þeir hefðu einhvers konar svigrúm, til dæmis val um það hvort þeir ynnu sjálfstætt eða með öðrum. Þeir kusu síður námsumhverfi sem var í föstum skorðum og gerði ráð fyrir einhæfum námsaðferðum, eins og algengast var í þátttökuskólunum. Það er von höfunda að niðurstöðurnar megi hafa til hliðsjónar við að hanna og bæta námsumhverfi nemenda með aukinni áherslu á lýðræðislega þátttöku þeirra og möguleika til að hafa áhrif á aðstæður sínar. Vísbendingar eru úr öðrum rannsóknum um að slíkt geti eflt skuldbindingu þeirra gagnvart náminu og þar með hugsanlega dregið úr brotthvarfi.
Sköpun skiptir sköpum: Viðhorf tungumálakennara til skapandi kennsluhátta
Authors: Henriksen Ásta
Published: February 2020

Markmið þessarar rannsóknar var að kanna viðhorf nokkurra tungumálakennara í framhaldsskólum til skapandi kennsluhátta. Skoðað var hvað það væri sem einkenndi helst skapandi kennsluhætti þessara kennara, hvort þeim fyndist mikilvægt að búa til tækifæri fyrir nemendur til að vera skapandi og hvers konar kennsluaðferðum þeir beittu helst. Einnig var athugað hvort eitthvað stæði í vegi fyrir því að þeir beittu skapandi kennsluaðferðum og hvað þá helst. Leitast er við að skilgreina hugtakið sköpun og fjallað er um sköpun í ljósi hugmynda fræðimannanna John Dewey, Lev Vygotsky, Elliot Eisner og Mihaly Csikszentmihalyi um nám og sköpun. Rannsóknin er hluti af rannsókninni Starfshættir í framhaldsskólum og byggist á sjö viðtölum og jafnmörgum vettvangsathugunum hjá tungumálakennurum úr þeirri rannsókn. Auk þess tók rannsakandi fjögur viðtöl til viðbótar og gerði tvær vettvangsathuganir.Helstu niðurstöður eru þær að flestum kennurunum finnst mikilvægt að hlúa að sköpun, sem er grunnþáttur í menntun á Íslandi, meðal annars vegna þess að skapandi aðferðir vekja áhuga, þær stuðla að auknu sjálfstrausti nemenda og gera þá betur í stakk búna til að takast á við verkefni sem bíða þeirra í framtíðinni. Nota þeir að sögn fjölbreyttar aðferðir sem gefa nemendum þeirra tækifæri til að vera skapandi. Hins vegar er ýmislegt sem stendur í vegi fyrir því að þeir noti slíkar aðferðir eins mikið og þeir vilja. Niðurstöður rannsóknarinnar benda til þess að til að koma til móts við aðalnámskrá varðandi sköpun í námi þurfi að efla skapandi nálgun í tungumálanámi í framhaldsskólum. Auka þarf sjálfstæði nemenda og svigrúm kennara til samstarfs, bæði innan deilda og milli deilda, auk þess sem hlúa þarf að menntun og endurmenntun kennara.
Diario de clase: un día como otro cualquiera en un aula de infantil
Authors: Valenzuela Sánchez Antonia
Published: February 2020

En este artículo se presenta el diario de una maestra de una Escuela Infantil, a través del cual nos introduciremos en los diferentes momentos de la jornada de un aula de 4 años. Se ha hecho especial hincapié en la asamblea, el método de proyectos, la importancia de la planificación conjunta y la organización espacial, así como del  juego y sus modalidades, todo visto desde el prisma del respeto y la inteligencia emocional.
Analisis Perubahan Waktu Pengeringan Terhadap Variasi Tinggi Cerobong
Authors: Syafrun Muhammad
Published: February 2020

This study aims to find out the efficiency of grain dryers using a chimney and a fan as suction air from the collector into the drying chamber.The research was conducted at the Central of Laboratory Department of Mechanical Engineering Faculty of Engineering, University of Muslim Indonesia, Makassar. A dryer was made from a zinc plate of 0.2 mm as collector by using a hot-air and solar energy as a drying medium. It was expected that this tool can  dry grain quickly with evenly distributed drying level or water content. There were five variations of  the Chimney : 20 cm, 50 cm, 80 cm, 110 cm and 140 cm with the grain thickness of 7 cm, 5 cm and 3 cm. The data were then analyzed to obtained the efficiency of the dryer. The results reveal that the time required to lower the water content of the harvest grain from 24.6% to 13.6% - 13.85% of milled moisture was 4 hours - 6.5 hours with an efficiency of 34,232 % for grain thicknes 7 cm, 31,480 % for grain thicknes 5 cm and 30,122 for grain thicknes 3 cm at 80 cm chimney height.
Analisis Jarak Gading dan Kekuatan Batas Struktur Kapal Ferry Ro-ro
Authors: Wulandari Amalia Ika
Published: February 2020

Abstrak

Perkembangan peraturan konstruksi tidak lagi mengatur jarak gading. Sehingga para perancang kapal merencanakan jarak gading yang optimal dengan batasan resiko tekuk pada pelat menurut peraturan klasifikasi, momen batas struktur kapal harus sama dengan atau lebih besar dari 1.2 kali momen lentur vertikal (sagging dan hogging). Momen lentur vertikal dihitung dengan menggunakan formulasi yang telah diberikan oleh BKI. Penelitian ini bertujuan untuk mengetahui kekuatan batas pada struktur kapal ferry Ro-Ro yang membandingkan hasil dari dua metode yaitu Metode Smith dan NLFEA. Ro-Ro adalah kapal yang menangani muatannya dengan cara rolling it on and off di atas single or series ramps. Ramps yang dapat bekerja baik saat di kapal dan dermaga. Pada penelitian ini menunjukkan perbandingan nilai hasil dari metode NLFEA lebih besar daripada metode Smith. Hal ini dikarenakan metode NLFEA dapat menghitung redistribusi beban dan interaksi antara kegagalan lokal dan global secara kompleks sehingga keakuratan hasil perhitungan metode NLFEA lebih baik daripada metode Smith. Semakin jauh jarak gading maka semakin kecil beban batas agar pelat mengalami tekuk.

 

Kata Kunci: Kapal Ro-Ro,  Penampang Melintang, Jarak Gading, Tekuk, Kekuatan Batas

 

Abstract

The development of construction's regulation is no longer determining the distance of the frame. Hence, the designers make the optimal frame distance plan with the ultimate risk of bending on the plate. According to the classification rules, the structure's ultimate moment must be equal to or greater than 1.2 times vertical bending moment (sagging and hogging). This study aims to determine the ultimate strength on the structure of a Ro-Ro ferry which comparing two methods between the Smith and NLFEA Methods. Ro-Ro is a ship that handles its cargo by rolling it on and off over a single or ramp series. Ramps that can work well on board and dock. The use of ANSYS application that applied NLFEA method in this study shows the comparison of result value of NLFEA method is greater than Smith method. This is because the NLFEA method can calculate load redistribution and the interaction between local and global failures in a complex way so that the accuracy of the NLFEA method is better than the Smith method. The further the ivory distance the smaller the load limit for the plate to buckling.
Pemanfaatan Realtime Database di Platform Firebase Pada Aplikasi E-Tourism Kabupaten Nabire
Authors: Sanad Edwin Adrin Wihelmus
Published: February 2020

Tourism objects in the district of Nabire relatively not developed much and has not been handled optimally due to lack of promotion. E-Tourism which is an electronic application for the tourism sector that can facilitate the user to visit a tourist site at a location. The currently available apps can not make real-time data changes regarding the position of the app's user coordinates to find out where to find the sights. This study aims to provide information to application users about the position of the location of the tour and the position of users who can change in real-time using firebase. This research uses experimental method, that is pinned firebase platform on E-Tourism so that application can utilize various real-time database feature in firebase. The system is tested by moving the user's position of the app to see changes in position data in real-time and will be shown on the application map. The next test by showing the location of tourism as well as the path traveled by the user to reach the sights. The results of this study show the position of the user that can change in real-time when the user to switch position without having to refresh the data manually (refresh). Applications can also display a list of tourist sites and the path taken to get to the tourist sites located in Nabire district.
Kajian Kelayakan Penempatan Solar Pond sebagai Sumber Energi Terbarukan di Jeneponto
Authors: Baso Nur Fadliah , Gunadin Indar Chaerah , Yusran Yusran
Published: February 2020

Energi listik merupakan kebutuhan manusia yang sangat penting karena selain berfungsi dalam penerangan, energi listrik juga sangat berperan dalam berbagai aktivitas manusia lainnya. Dengan seiring waktu, bahan baku pembangkit tenaga listrik dari fosil juga semakin menipis. Sudah selayaknya kebutuhan energi yang memanfaatkan energi fosil berganti menjadi energi terbarukan. Salah satu pemanfaatan energi terbarukan yang potensinya sangat besar di Indonesia adalah energi berasal dari energi laut yang dinamakan solar pond . Energi dari solar pond sangat dipengaruhi oleh beberapa faktor yaitu salinitas, temperatur udara dan radiasi matahari. Penelitian ini akan difokuskan untuk mencari potensi solar pond di Jeneponto yang memiliki curah matahari cukup besar dan ketersediaan bahan baku air garam yang melimpah. Metode yang digunakan yaitu dengan menganalisa nilai dari model matematis radiasi matahari horizontal harian, temperatur udara, kecepatan angin, kelembaban relatif, dan tekanan atmosfir selama 22 tahun terakhir yang diselesaikan dengan menggunakan MATLAB. Hasil penelitian ini akan menunjukkan potensi untuk penerapan solar pond di Jeneponto yang dapat di aplikasikan di berbagai bidang seperti pembangkit energi listrik, proses pemanasan industri, desalinasi dan pemanasan konversi biomass.
Implementasi Progressive Web Application pada Sistem Monitoring Keluhan Sampah Kota Makassar
Authors: Kurniawan Awal , Areni Intan Sari , Achmad Andani
Published: February 2020

Teknologi web sudah mengalami banyak kemajuan. Dimulai dari era web 1.0 yang masih bersifat statis hingga teknologi web yang mampu mengatasi permasalah perangkat keras seperti storage, speech recognition, hingga geolocation. Salah satu teknologi web yang hadir saat ini adalah progressive web application. Penelitian ini bertujuan untuk merancang sebuah sistem yang dapat melakukan proses caching file pada konten website. Sistem menggunakan progressive web application dengan memanfaatkan service worker. Sumber data yang akan dijadikan objek pada penelitian ini adalah data keluhan masyarakat yang berbentuk JSON. Pada penelitian ini digunakan metode eksperimental dalam merancang aplikasi. Data keluhan yang bersumber dari sebuah API (Application Programming Interface) kemudian ditampilkan dalam keadaan jaringan aktif. Selama dalam keadaan jaringan aktif, service worker melakukan tugasnya dalam melakukan proses caching. Setelah itu , data yang sudah disimpan bisa diakses pada jaringan tidak aktif. Hasil dari penelitian ini adalah sistem keluhan yang disisipkan service worker mampu melakukan proses caching data hingga 500 data keluhan. Meskipun eksekusi waktu yang dibutuhkan dalam mengakses aplikasi lebih lama karena pemasangan service worker, namun aplikasi yang diakses lebih cepat ketika dalam keadaan offline karena data dimuat dalam cache service worker.
Rancangan DC-DC Converter untuk Penguatan Tegangan
Authors: Buntulayuk Herman , Samman Faizal Arya , Yusran Yusran
Published: February 2020

Paper ini menampilkan hasil penelitian kuantitatif, yang bersifat pemodelan simulasi boost converter dengan skenario kontrol PWM untuk mengatur duty cycle dan frekuensi pada sisi masukan, sedangkan pada bagian luaran diberikan pembebanan yang berbeda baik itu beban resistansi, induktansi dan juga kapasitansi. Rangkaian yang digunakan adalah rangkaian penguat teganan dengan metode Dickson. Simulasi juga dilakukan pada beberapa pentahapan mulai dari 2, 3, 4, 6 hingga 8 tahap untuk melihat perubahan besaran tegangan luaran yang dihasilkan. Hasil penelitian menunjukkan bahwa dari 5 jenis pentahapan, tegangan luaran sebesar 1258 Volt diperoleh saat rangkaian dibuat hingga 8 tahap dengan pembebanan resistansi dan kapasitansi dan duty cycle 90%.
EVALUACIÓN NEUROPSICOLÓGICA DE LAS FUNCIONES EJECUTIVAS EN PACIENTES CON TRASTORNO MENTAL GRAVE
Authors: Martin Diaz Olga , Daza González Maria Teresa , Santiago Molina Encarnacion , Garrido Fernández Pablo , Ruiz Castañeda Pamela
Published: February 2020

ResumenLas funciones ejecutivas se refieren a un conjunto de procesos cognitivos de orden superior que nos permiten participar en comportamientos independientes, intencionados y autodirigidos, y son un componente importante de la capacidad de encajar socialmente. Sin embargo, en  pacientes con  enfermedad mental grave  (SMI), en el que las principales limitaciones se observan precisamente en el grado de autonomía e independencia, muy pocos estudios que han explorado sistemáticamente estas funciones. En el presente estudio se administró una batería de tareas neuropsicológicas computarizadas destinadas a evaluar varios componentes de la función ejecutiva (memoria de trabajo, control inhibitorio, flexibilidad cognitiva, planificación y proceso de toma de decisiones), se administró a un grupo de 38 pacientes con SMI y a un grupo de sujetos de control con características sociodemográficas similares. El grupo de pacientes SMI mostró un peor rendimiento en tareas que implican memoria de trabajo, control inhibitorio, flexibilidad cognitiva y planificación; sin embargo, en cuanto al proceso de toma de decisiones en condiciones de incertidumbre,se desempeñaron de manera similar al grupo de sujetos decontrol. El patrón de déficit según los pacientes con SMI sugiere que la mayoría de los componentes ejecutivos que se consideran necesarios para poder responder de forma adaptativa a nuevas situaciones, que están asociadas con  la corteza prefrontal  dorsolateral y la corteza cingulada anterior, están deterioradas en estos pacientes. Sin embargo, los procesos ejecutivos asociados con la corteza  prefrontal ventromedial/orbitofrontal  no parecen mostrar el mismo grado de deterioro.
Permenant Downhole Monitoring System PDHMS Reliability
Authors: Sadah Hassan , Kadem Mohammad , Yateem Karam , Dabbous Mohamemd
Published: February 2020

The demand for permanent downhole monitoring systems (PDHMS's) has been increasing over the last two decades. These systems, along with other real-time and intelligent field technologies, provide real-time data that are crucial to both reservoir and production engineers with reservoir modeling and production strategies.

A PDHMS consists of two main parts, which are downhole and surface equipment. Although the installation cost of this equipment might not be significant if installed during initial completion or routine workover, replacing defective downhole equipment is costly as it will require a workover operation. Therefore, it is important to capitalize on all opportunities to retrieve and analyze defective downhole equipment to minimize future malfunction, increase the life expectancy, reduce operational cost, and enhance efficiency.

This paper studies several downhole gauge challenges to find out their root causes. This will help in enhancing future designs and reducing the number of downhole gauge replacements. These gauges were retrieved during scheduled workover operations on several wells. They were retrieved and sent to their manufacturers for Dismantle Inspection Failure Analysis (DIFA). The root causes were identified and the recommendations were implemented in all newer models.

In many cases, the issue was caused by only one component, which was either downhole gauge malfunctioning or port blockage of the gauge mandrel. The component may vary depending on the gauge manufacturer and model, with the most common causes being the Y-block/Y-splitter, debris and non-properly swaged ferrules.

The findings have been utilized by PDHMS manufacturers to amend and enhance their next generations. Taking advantage of as many opportunities as possible to retrieve and study failed equipment will assist oil and service companies to work together for developing more reliable models that can extend their run life even in harsh downhole environments.
Unlocking the Production Potential of Brown Fields through Gas Lift Optimization GLO
Authors: Hammadi Boubaker , Agoudjil Karim , Fahem Abdelhafid , Tadjine Fateh , Moussa Benabdellah Hamza , Makhloufi Abdelhamid , Djebrouni Abdelghani , Bouchikhi Brahim , Younsi Toufik
Published: February 2020

As a Brown Field, located in North Africa. Approximately 95% of Zarzaitine field wells are utilizing Gas Lift as an artificial lift method. The field has a challenging situation to optimize its Oil production; A detailed understanding of the production sys tem thermohydraulic, facility design and the amount of gas injection will ultimately have a major effect on production target. For this purpose, modeling the entire production system was necessary to properly account for the interdependency of wells and surface equipment and determine the system deliverability as a whole by optimizing Gas Lift injection.

This paper presents an approach which was introduced for the first time in this field to ensure gas is used efficiently using a multiphase flow simulator for wells and pipelines to model the entire field Production Network in addition to the Oil producing wells including Gas lift mandrels. The model includes 112 Gas Lift wells with a detailed Gas Lift valves system currently on production, each one has been matched against the latest valid well test, Seven Separation Centers, Production gathering pipelines, Production gathering Center and Gas Lift Injection Center. The study has been executed in three major phases: Well Modeling & Calibration, Network Modeling and Gas Lift Optimization.

Total Oil production rate has been defined as an objective function during the optimization phase where the total Injected Gas Lift rate for the entire network and for each individual well have been defined as varying parameters; By having a network model calibrated against field data representing the operational conditions of the asset, performing Gas Lift Optimization was the natural next step. Subsequently, by simulating the production system with different Gas Lift Optimization scenarios to maximize Oil production rate under specific surface facilities constraints using the Production Network Model, a better insight of how gas injection rate affects the total production and an understanding of whether a smarter allocation of the current available gas is possible in comparison to the different scenarios has been accomplished. As a result of this Optimization by applying some local and global constraints a 10% Oil production increase has been achieved.

This practice has been shown to be successful as predictive technique in a variety of ways specially for such brown fields with more than 60 years of production history. As a next step, to properly manage the real potential of Brown fields, a full field Integrated Asset Model could be created to capture the interaction between the surface and the sub-surface. This model will account for the complex interactions between reservoir, wells and pipelines.
ANALISA PRODUKTIVITAS PADA PT. PEKEBUNAN NUSANTARA (PTPN) X PG KREMBOONG DENGAN METODE OBJECTIVE MATRIX (OMAX)
Authors: Erdhianto Yoniv , Basuki HM Gatot
Published: February 2020

Produktivitas merupakan hal yang sangat perlu dipertimbangkan oleh perusahaan karena produktivitas mempunyai peranan penting dalam pencapaian tujuan perusahaan. Penelitian ini dilakukan guna mendapatkan hasil dari pengukuran rasio produktivitas yang selama ini belum pernah dilakukan, dan selanjutnya hasil dari pengukuran tersebut akan digunakan sebagai upaya peningkatan produktivitas untuk masa yang akan datang di PG Kremboong. Penelitian ini dalam penyelesaian masalahnya menggunakan metode Objective Matrix (OMAX). Pengukuran dengan objective matrix (OMAX) ini didasarkan pada prinsip produktivitas, yaitu berdasarkan sasaran yang secara objektif mengukur unjuk kerja dan fungsi tujuan sebagai target pencapaian kelompok kerja, sehingga dihasilkan pengukuran kuantitatif yang menunjukan sejauh mana tujuan manajemen tercapai. Dari analisa produktivitas di PG Kremboong dengan metode OMAX disimpulkan bahwa, indeks produktivitas terbaik terjadi pada September 2018 sebesar 904 dan terburuk terjadi pada September 2018 sebesar 201% dan terburuk pada bulan Juni 2018 sebesar -45%. Indeks perubahan terhadap produktivitas periode sebelumnya dapat diketahui bahwa produktivitas terbaik terjadi pada Juli 2018 sebesar 375%. Sedangkan untuk produktivitas yang terjadi pada Agustus-September 2018 sama-sama memiliki nilai yaitu sebesar 8 %. Langkah perbaikan produktivitas guna perencanaan peningkatan produktivitas dimasa yang akan datang adalah dengan cara memprioritaskan kepada rasio yang memiliki nilai paling buruk untuk ditingkatkan.
Огурец на юге: многообразие технологий и гибридов
Authors: Timoshenko I.V. , Ognev V.V.
Published: February 2020

В последние годы в производстве огурца получили распространение как весенние теплицы, так и зимние с регулируемым микроклиматом. В статье приведены особенности формировки и основные технологии выращивания огурца в защищенном и открытом грунте, разнообразие сортимента культуры огурца.

In recent years, cucumber production has become widespread, as spring greenhouses, and winter with a regulated microclimate. This article describes the features of the formation and the main technologies for growing cucumber in a protected and open ground, the variety of the cucumber culture assortment.
Обеззараживание семян капусты от сосудистого бактериоза
Authors: Orynbayev A.T. , Dzhalilov F.S.
Published: February 2020

Приведены данные двухлетнего исследования по поиску эффективных препаратов для обеззараживания семян капусты от сосудистого бактериоза. Наилучший результат был получен при предпосевной обработке 0,15%-ной надуксусной кислотой. При этом биологическая эффективность составляла 94,1–97,6%, что значительно превышало соответствующий показатель в эталонном варианте – Фитолавин, ВРК, 0,2% (69,0–72,0%). Показано, что заблаговременная обработка семян НУК (за 550 суток до посева) не оказывала достоверного влияния на их лабораторную всхожесть.

Presented data are the result of a two-year study aimed at identifying effective preparations for the disinfection of cabbage seeds from black rot. The best result was obtained by presowing treatment with 0.15% peracetic acid. In this case, the biological efficiency was 94.1–97.6%, which significantly exceeded the corresponding indicator in the reference variant – Phytolavin, VRK, 0.2% (69.0–72.0%). The study has not revealed any significant effect of advance treatment of seeds with peracetic acid (550 days before sowing) on their laboratory germination.
Защита столовой свеклы от церкоспороза в условиях Приморского края
Authors: Vanyushkina I.A. , Kushnareva N.P. , Mikheev Y.G. , Leunov V.I.
Published: February 2020

Приведены результаты испытания фунгицидов Аканто Плюс, Рекс Дуо и Скор против церкоспороза столовой свеклы. Показана их биологическая эффективность (до 98,4%) и способность обеспечивать повышение урожая стандартной продукции (до 41,2%).

The results of the test of fungicides Acanto Plus, Rex Duo and Scor against cercosporosis. Their biological effectiveness (up to 98.4%) and the ability to raise a crop of standard products (up to 41.2%).
Гибриды перца сладкого для товарного производства
Authors: Ognev V.V. , Chernova T.V. , Kostenko A.N. , Poltavskiy N.A.
Published: February 2020

Представлен обзор селекционной работы по культуре перца сладкого в Агрохолдинге «Поиск». Выделены актуальные направления исследований в селекции перца на гетерозис. Представлены лучшие гибриды для различных направлений использования в товарном производстве.

Main directions of breeding and results of breeding work by Poisk Agro Holding in sweet pepper are presented. Hybrids identified for intensive growing in open ground and springhouse, for various uses.
Государственно-частное партнерство – самый эффективный путь развития отечественной селекции овощных культур
Authors: Klimenko N.N.
Published: February 2020

Проанализированы предпосылки и причины небольшой доли российских сортов и гибридов на отечественном рынке: неудовлетворительного состояния селекционной работы и малого практического выхода в виде конкретного рыночного селекционного продукта в бюджетных научных учреждениях. Основная причина – отсутствие реальной связи между ними и запросами рынка. Эффективно восстановить эту связь может системное партнерство между государственными научными учреждениями и частными селекционно-семеноводческими компаниями. Изложен зарубежный опыт формирования конкурентоспособной селекции, работающей именно по этому принципу.

The background and causes of a small part of Russian cultivars and hybrids in the domestic market is analysed: the poor state of breeding work and small practical output as concrete market breeding product in the budgetary scientific institutions. The main reason of it is the lack of real communication between them and the demands of the market. Effective way to restore the connection is a systemic partnerships between state research institutions and private seed companies. Foreign experience of forming competitive selection operating on this principle is presented.
Инновационные технологии в производстве рассады цветочных культур
Authors: Korchagin A.V.
Published: February 2020

Рассмотрены различные аспекты производства рассады цветочных культур, позволяющие достигнуть высокого качества продукции: правильный выбор посевного материала, механизация производства, досветка растений и применение регуляторов роста, использование готовых сеянцев.

Various aspects of the production of flower seedlings to achieve high product quality are considered: the right choice of seeds, mechanization of growing, supplementary lighting of the plants and the application of growth regulators, the use of ready-made seedlings.
Оценка образцов картофеля
Authors: Lapshinov N.A. , Gantimurova А.N. , Kulikova V.I. , Кhodayevа V.P.
Published: February 2020

В 2016–2017 годах в коллекционном питомнике изучали 170 образцов картофеля мировой коллекции ВИР и других НИУ с целью выделения источников ценных признаков. По комплексу хозяйственно ценных признаков выделилось 7 сортов. Сорта и гибриды, выделившиеся по отдельным признакам и комплексу признаков, используют в селекционной работе как исходный материал для создания новых сортов картофеля.

In 2016–2017 years the collection nursery studied 170 samples of potatoes of world collection of VIR and other research enterprises to select sources of valuable traits. The complex of economically valuable traits stood out 7 cultivars. Cultivars and hybrids released for individual signs and the complex signs used in breeding as source material for creating new potato cultivars.
Удобрение перца сладкого
Authors: Borisov V.A. , Menshikh A.M. , Sosnov V.S. , Monakhos G.F.
Published: February 2020

Показано действие минеральных удобрений, микрокристаллического комплексного водорастворимого удобрения «Мастер» и органоминерального наноудобрения с ростостимулирующей активностью «Арксойл» при капельном орошении на урожайность и качество сладкого перца нового гибрида F1 Темп. Сочетание основного удобрения с листовой и корневой подкормками позволяет получить до 65 т/га плодов перца высокого качества.

The action of mineral fertilizers, microcrystalline complex water soluble fertilizer Master and organic mineral nano-fertilizer with growth-stimulating activity Arksoil under drip irrigation on the productivity and quality of sweet pepper of the new hybrid F1 Temp is shown. The combination of basic fertilizer with leaf and root fertilizing allows to obtain up to 65 t/ha of pepper fruits of high quality.
Универсальное оборудование для доработки картофеля
Authors: Alakin V.M. , Plakhov S.A.
Published: February 2020

Кратко рассмотрена актуальность применения современной технологии и универсального оборудования для послеуборочной доработки картофеля. Приведены особенности конструкции универсального рабочего органа и основные параметры оборудования ротационного типа для доработки картофеля, рассмотрен его технологический процесс и приведены основные качественные показатели работы.

The urgency of applying modern technology and universal equipment for post-harvest processing of potatoes is briefly considered. Specific features of the design of the universal working element and the main characteristics of the rotary-type equipment for the post-harvest processing of potatoes are considered. The technological process is reviewed and the main quality performance indicators are included.
ЮНИФОРМ®: снижение вредоносности питиозной гнили картофеля
Authors:  Kuznetsova M ,  Rogozhin A ,  Smetanina T ,  Demidova V ,  Statsyuk N ,  Denisenkov I
Published: February 2020

Pythium отрицательно влияет на развитие растений картофеля, вызывая значительное поражение корневой системы. Внесение препарата ЮНИФОРМ® перед посадкой клубней позволило не только сдерживать развитие Pythium, но и положительно влияло на рост и развитие растений картофеля, что позволило получить максимальную прибавку урожая.

Pythium negatively influences on the development of potato plants causing significant affection of the root system. Pre-planting application of the Uniform fungicide successfully controls the Pythium development and positively influences on the growth and development of potato plants that provides the maximum yield improvement.
Новый сорт салата Поиск Ст 16 для гидропоники
Authors: Davletbaeva O.R. , Ibragimbekov M.G. , Khovrin A.N.
Published: February 2020

На салатных линиях проведено испытание новых сортов листового салата селекции агрохолдинга «Поиск»: Задор, Восторг, Поиск Ст 16. Результаты подтвердили их пригодность для промышленных технологий производства салата. Наиболее перспективен сорт Поиск Ст 16. При испытании в тепличном комбинате «Горьковский» (г. Нижний Новгород) в 2017 году на тридцать восьмые сутки он сформировал листовую розетку высотой 38 см, массой 241 г. Листовая пластинка насыщенно зеленого цвета, листья розетки расположены близко друг к другу и образуют очень плотную розетку, а не разваливающийся куст.

On the lettuce technological lines the new cultivars of lettuce bred at Poisk Agro holding were tested: Zador, Vostorg, Poisk St 16. The results confirmed their suitability for industrial production technology of lettuce. The most promising cultivar is Poisk St 16. When tested in greenhouse Gorky complex (Nizhny Novgorod) in 2017, at the thirty-eighth day he formed a leaf rosette height 38 cm, weight 241 g. Leaf blade deep green, the leaves of the rosette are placed close to each other and form a very dense rosette, not the crumbling hive.
Перечное изобилие от Агрохолдинга «Поиск»
Authors: Ognev V.V. , Kostenko A.N. , Barbaritskaya I.V.
Published: February 2020

Изложены подходы к выбору сортов и гибридов перца сладкого с учетом сортовых особенностей, специфики местных почвенно-климатических условий и использования продукции на юге России. Представлен разнообразный сортимент перца сладкого от Агрохолдинга «Поиск».

Outlines approaches to the choice of varieties and hybrids of sweet pepper, taking into account the varietal characteristics, the specifics of the local soil and climatic conditions and the use of products in the South of Russia. Presented a varied assortment of sweet pepper from Poisk Agro holding.
Чабер садовый – перспективное сырье
Authors: Malankina E.L. , Romanova N.G. , Solopov S.G. , Tkacheva T.N.
Published: February 2020

Представлены результаты испытания отечественных и зарубежных сортов чабера садового (Satureja hortensis L.) в условиях Нечерноземной зоны РФ. Определено содержание основных биологически активных веществ (эфирного масла, флавоноидов, суммы фенольных соединений) в сырье семи сортов. Показано, что низкорослые сорта характеризовались наибольшим накоплением эфирного масла, в то время как накопление фенольных соединений не зависело от высоты растений.

In this article are presented the study results of Russian and European varieties of the garden savory (Satureja hortensis L.) in conditions of the Non-сhernozem zone of the Russian Federation. It was determined the content of the main biologically active substances (essential oil, flavonoids, the sum of phenolic compounds) in raw materials of 7 varieties. The content of essential oil in raw material was between 0,18–1,06%. It was shown that the low-growing varieties were characterized by the greatest accumulation of essential oil. The content on phenolic compounds did not depended on the height of the plants and was from 5,12 to 14,1%.
Оптимизация параметров машины для уборки лука-репки с укладкой в валок
Authors: Irkov I.I. , Selivanov V.G. , Romanovskiy N.V.
Published: February 2020

Изложены результаты оптимизации параметров машины для уборки лука-репки с укладкой в валок. Установлено, что покрытие фторопластом подкапывающих ножей, выполненных по криволинейной поверхности, и опорного катка обеспечивает стабильный технологический процесс машины при влажности почвы до 26%.

The results of parameter optimization for onion harvesting machine with swath emplacement are stated. Teflon (fluoroplastic) coating of curvilinear digging shares and track roller provides stable operating procedure up to 26% soil moisture.
Пригодность очищенного картофеля к вакуумной упаковке и быстрой заморозке
Authors: Maltsev S.V.
Published: February 2020

Отражены результаты исследования основных факторов (сорт, почвенно-климатические условия выращивания, фон минерального питания, температура хранения сырья и готового продукта, срок переработки), определяющих пригодность картофеля к вакуумной упаковке и быстрой заморозке без применения консервантов.

The article reveals main factors (such as potato variety, soil and climatic conditions, doses of mineral fertilizers, store temperatures, different timelines of processing) determining the suitability of potatoes for vacuum packaging and fast freezing without usage of chemicals.
Конвейерное выращивание пекинской капусты на юге Западной Сибири
Authors: Kolpakov N.A.
Published: February 2020

Рассадный способ выращивания обеспечивает созревание пекинской капусты уже в начале июля, при безрассадном способе оно начинается с третьей декады июля. Величина урожая и средняя масса кочана пекинской капусты сильно варьирует и зависит от способа и сроков выращивания. В Алтайском крае для получения стабильно высоких урожаев пекинской капусты с июля по октябрь необходимо комплексное использование рассадного и безрассадного способов выращивания.

It has been found that the transplant technique ensures pe-tsai cabbage ripening already in early July; under direct-seeded growing technique, pe-tsai cabbage ripening begins in the third ten-days of July. The yield and average cabbage-head weight of pe-tsai cabbage vary and depend on the growing techniques and growing dates. To obtain consistently high yields of pe-tsai cabbage under the conditions of the Altai Region in the period from July to October, the use of the transplant and direct-seeded growing techniques should be integrated.
ИЗАБИОН® повышает урожайность и качество картофеля
Authors: Kuznetsova M.A. , Rogozhin A.N. , Smetanina T.I. , Denisenkov I.A. , Demidova V.N.
Published: February 2020

Применение органоминерального удобрения ИЗАБИОН® в смеси с фунгицидами в большей степени снижает пораженность растений картофеля альтернариозом и фитофторозом по сравнению с применением только фунгицидов, повышает урожайность картофеля и обеспечивает выравненность урожая и больший выход товарной продукции.

The application of fungicides mixed with ISABION® decreases the level of the early and late blight infection of potato plants comparing to the treatment of plants with fungicides only; such mixed treatment increases the yield of potato and provides more uniform yield and a larger percentage of the marketable fraction of tubers.