bluuebunny/crossref_metadata_2025 huggingface dataset:
PENDEKATAN MODEL GRAVITASI UNTUK MENGESTIMASI PERMINTAAN PARIWISATA DI INDONESIA
Authors: Sarwoko Sarwoko , Raharti Rini , Ridwan Ridwan , Agustina Diana
Published: February 2021

Tourism is one of the main drivers of Indonesia’s economy. It included the five biggest foreign earning contributors of the country’s income receipt in the past. From this perspective, this study tries to analyse the determinants influencing international tourism demand in Indonesia using the Gravity Model. In this study, to estimate tourism demand in the form of Tourist Arrival or Tourist Expenditure based on key economic factors as Real Gross Domestic Product (GDP) per capita both from Tourist Origin Country and Tourist Destination Country, Relatively living cost country, Real exchange rate and Distant (mile) between Tourist Origin Country and Tourist Destination Country. For the empirical analysis a panel dataset of the ten biggest mayor Tourist Origin Countries- Australia, Malaysia, Singapore, Jepang, India, Korea Selatan, China, Amerika, Inggris and Taiwan- is used over the periode 2000-2018. With the panel data estimation shows that the majority of the determinants have statistically significant in the two specifications of tourism demand.Abstrak Pariwisata adalah salah satu faktor pendorong utama perekonomian Indonesia. Hal tersebut termasuk dalam lima penyumbang devisa terbesar. Dari perspektif itu, penelitian ini mencoba menganalisis faktor-faktor yang memengaruhi permintaan pariwisata secara internasional di Indonesia dengan menggunakan Model Gravity. Dalam studi ini, untuk memperkirakan permintaan pariwisata dalam bentuk Kedatangan Turis atau Kepergian Turis berdasarkan faktor ekonomi utama dalam bentuk Produk Domestik Bruto (PDB) per kapita baik dari Negara Asal Wisatawan dan Negara Tujuan Wisata, biaya hidup relatif, nilai tukar riil dan Jarak (mil) antara Negara Asal Wisatawan dan Negara Tujuan Wisata. Untuk analisis empiris, menggunakan data panel dari sepuluh negara terbesar yakni Negara Asal Turis - Australia, Malaysia, Singapura, Jepang, India, Korea Selatan, Cina, Amerika, Inggris, dan Taiwan selama periode 2000-2018. Dengan estimasi data panel menunjukkan bahwa semua faktor penentu secara statistik signifikan dalam dua persamaan permintaan pariwisata. Kata Kunci : pariwisata, destinasi, PDB, model gravity, data panel
Doskonalenie relacji międzyludzkich wyzwaniem społeczeństwa XXI wieku
Authors: Ciupińska Beata
Published: February 2021

Przedstawiciele nauk humanistycznych i społecznych mocno akcentują istnienie kryzysu więzi społecznej, do którego zdaniem Cz. Banacha (2002) dochodzi m.in. na skutek globalizacji życia społecznego, chaosu w zakresie reguł prawnych i obyczajowych, czy bezrobocia kształtującego poczucie niepewności. Osłabieniu więzi międzyludzkich sprzyja także coraz ostrzejszy kontrast dotyczący poziomu życia oraz możliwości ekonomicznych poszczególnych członków społeczeństwa. Od ludzi żyjących w tych specyficznych warunkach, czasach zawirowań i niepewności, oczekuje się jednak świadomego udziału w życiu spo-łecznym i gospodarczym, podejmowania przemyślanych, dojrzałych decyzji oraz przyjmowania całkowitej odpowiedzialności „za swój los”...
Kształcenie nauczycieli do nauczania przedsiębiorczości na specjalności „geografia z przedsiębiorczością i gospodarką przestrzenną” w Akademii Pedagogicznej w Krakowie
Authors: Zioło Zbigniew
Published: February 2021

W celu podniesienia efektywności transformacji gospodarki narodowej, poprzez racjonalne wdrażanie reguł rynkowych, niezbędnym warunkiem jest przygotowanie społeczeń-stwa do nowych zachowań, które rozumie mechanizmy współczesnych tendencji procesu rozwoju społeczno-gospodarczego i kulturowego. Nowe reguły opierają się głównie o zasadykonkurencyjnego zachowania na rynku nie tylko określonych produktów, przedsiębiorstw produkcyjnych, czy usługowych, ale także jednostek ludzkich i przedstawicieli różnych szczebli układów samorządowych (lokalnych, ponadlokalnych, subregionanych, regionalnych)...
Rola praktyk z przedsiębiorczości w kształceniu studentów geografii na specjalności „przedsiębiorczość z gospodarką przestrzenną”
Authors: Borowiec Monika
Published: February 2021

W celu podniesienia efektywności transformacji gospodarki narodowej, poprzez racjonalne wdrażanie reguł rynkowych, niezbędnym warunkiem jest przygotowanie społeczeń-stwa do nowych zachowań, które rozumie mechanizmy współczesnych tendencji procesu rozwoju społeczno-gospodarczego i kulturowego” (Zioło 2004, s. 257). Rozwój przedsię-biorczości jest czynnikiem dynamizującym przeobrażenia strukturalne w okresie transformacji społeczno-gospodarczej (Majecka, Kowalska 2004). Można ją traktować jako stymulator rozwoju społeczno-gospodarczego. A zatem bardzo istotnym w rozwoju przedsiębiorczości jest edukacja i pobudzanie odpowiednich postaw wśród młodych ludzi (Kulikowski, Zieliń-ska 2004)...
Przedmiot podstawy przedsiębiorczości w opinii uczniów i rodziców na przykładzie wybranych krakowskich szkół
Authors: Osuch Edyta , Osuch Wiktor
Published: February 2021

Od 1 września 2002 r. do polskich szkół ponadgimnazjalnych został wprowadzony przedmiot podstawy przedsiębiorczości. Zgodnie z Rozporządzeniem Ministerstwa Edukacji Narodowej i Sportu z dnia 26 lutego 2002 r. dotyczącym podstawy programowej kształcenia ogólnego przedmiot ten ma na celu uczyć postaw przedsiębiorczych oraz przygotować młodych ludzi do aktywnego udziału w życiu społeczno-gospodarczym...
Miejsce i rola edukacji europejskiej w nauczaniu podstaw przedsiębiorczości w kontekście współczesnych wyzwań cywilizacyjnych
Authors: Piróg Danuta
Published: February 2021

Zachodzące przemiany społeczne, gospodarcze, kulturowe i polityczne w Polsce i na świecie, zwłaszcza procesy globalizacji i integracji z Unią Europejską oraz postępujący z coraz większym nasileniem rozwój cywilizacyjny, wymuszają na społeczeństwie przygotowanie się do nowych warunków życia. Zasadniczą rolę w tym zakresie odgrywa przyswojenie wiedzy o wymienionych procesach, zrozumienie mechanizmów nimi rządzących i nabycie umiejętności, pozwalających na sprawne funkcjonowanie jednostki w nowej rzeczywistości...
Problematyka rynku pracy w edukacji przedsiębiorczości
Authors: Baran Barbara
Published: February 2021

Transformacja systemu społeczno–gospodarczego prowadzi do zmian dotychczasowych zasad funkcjonowania poszczególnych dziedzin życia społecznego i gospodarczego. Proces ten wpłynął także na nową jakość rynku pracy oraz zmiany jego funkcjonowania. W konsekwencji przekształceniu uległy reguły gry na tym rynku, od niedoboru siły roboczej, który występował w gospodarce centralnie sterowanej, do pojawienia się coraz intensywniejszego nasilenia masowego bezrobocia. W tej nowej sytuacji należy uzmysławiać przyszłemu pracownikowi (uczniowi), że człowiek sam musi poszukiwać swojego miejsca na rynku pracy. Tylko aktywna postawa, wysokie kwalifikacje i poziom konkurencyjności jednostki przy poszukiwaniu pracy może doprowadzić do osiągnięcia przez nią sukcesu. Rozumiejąc zachodzące procesy i zasady funkcjonowania tego rynku łatwiej jest poszukiwać optymalnych rozwiązań w planowaniu i realizacji własnej kariery zawodowej...
Rodzaje i struktura bezrobocia w Polsce
Authors: Batorska Urszula
Published: February 2021

W programie treści kształcenia w nowym przedmiocie wkraczającym do systemuedukacyjnego podstawy przedsiębiorczości” bardzo ważnym zagadnieniem jest problematyka rynku pracy i bezrobocia...
Metodyka nauczania podstaw przedsiębiorczości i podstaw ekonomii
Authors: Łazowska Ewa
Published: February 2021

Istotnym celem nauczania w szkole zawodowej jest rozwój zawodowej kompetencji działania. Szkoły zawodowe wnoszą duży wkład w kwalifikację zawodową. Przyczyniają się w równym stopniu do formowania osobowości, jak do tworzenia kwalifikacji użytecznej na rynku pracy...
Przedsiębiorczość jako przedmiot matury 2008
Authors: Bartoń Marek
Published: February 2021

Postęp cywilizacyjno-technologiczny oraz transformacja polityczno-gospodarcza są sumą zmian i przeobrażeń systemu gospodarczego, który decyduje ostatecznie o tempie i poziomie rozwoju gospodarczego danego kraju. Dokonujące się przemiany dotyczą również konieczności dostosowania systemu oświaty w Polsce...
Czy jest miejsce dla doradcy zawodowego i SZOKu w ponadgimnazjalnych szkołach ogólnokształcących?
Authors: Desperak Jerzy
Published: February 2021

Na zajęciach z podstaw przedsiębiorczości z uczniami starszych klas liceum ogólnokształcącego słyszałem pytania: jaki powinienem wybrać zawód, by mieć szansę zdobycia dobrze płatnej pracy, gdzie się uczyć- czy iść na studia, a może wystarczy szkoła policealna, jakie są perspektywy pracy w moim regionie, jaka jest przyszłość regionu, kraju...
Przedsiębiorczy uczeń na rynku pracy
Authors: Mitura Elżbieta , Jamroz Danuta
Published: February 2021

Zreformowana szkoła winna przygotowywać uczniów do podejmowania trudnych decyzjizwiązanych z planowaniem przyszłej kariery i rozwoju zawodowego oraz do radzeniasobie w zmieniającej się rzeczywistości. Jednym z przedmiotów przygotowujących młodzieżdo aktywnego znalezienia się na rynku pracy jest przedsiębiorczość...
Estado, estrategias de desarrollo y las ideas “correctas” en América Latina
Authors: Seiler Cristhian
Published: February 2021

En las últimas dos décadas, la persistencia de rasgos periféricos en la estructura productiva de los países latinoamericanos habilitó a cuestionar en qué medida el pensamiento neodesarrollista permitió consolidar un modelo consistente y alternativo al neoliberal. Como estrategia de análisis, el trabajo introduce la dimensión de las ideas y axiomas que orientan la acción estatal en el campo de las políticas de desarrollo. El trabajo es teórico y argumenta que las acciones y estrategias estatales nunca se dan en un vacío, sino en el contexto de ideas y enunciados acerca de cómo alcanzar el desarrollo, los cuales son hegemónicos, específicos y construidos históricamente. Se concluye que las acciones estatales neodesarrollistas no deberían considerarse como fracasos o anomalías institucionales, sino más bien como intervenciones que fueron orientadas por ideas “correctas” que favorecieron la reproducción de los rasgos periféricos.
Management Privacy dalam Penggunaan Fitur “Close Friend” di Instagram
Authors: Dianiya Vicky
Published: February 2021

Social media is basically to share information and self-disclosures by the account owner. However, there is an attitude of caution in expressing which must also be considered and needs to be considered. Technological developments make more and more new features appear on various social media platforms, one of them is the close friend feature on Instagram that can be used to limit users in sharing information that is considered more privacy. This study uses the Communication Privacy Management theory as a framework for investigating how Instagram users, especially young adults, use and respond to the use of the close friend feature. Overall, the results of interviews with five informants found evidence of five basic assumptions in using CPM implied on social media and showed that there is confidence in the disclosure of privacy when using the close friend feature.
Analysis of patron-client political communication in building a network of political power in the village community
Authors: Suyono Suyono , Nugroho Kris , Windyastuti Dwi
Published: February 2021

This study aimed to explore political communication in the building of political power networks in Jenggrik Village, Kedunggalar District, Ngawi Regency during the village head elections (village head election) from 1998 to 2019 from patron-client relations perspective. Political communication occurs through village elites and village community leaders. Political communication happens between the village head and his community members. This study was a descriptive study using a qualitative research method. This study sought to understand the processes and facts about political communication that shapes community loyalty and the leaders in Jenggrik Village, Kedunggalar District who have economic and non-economic power. The findings and conclusions of this study supported Max Weber's notion on Charismatic Leadership as well as Sartono Kartodirjo’s research which stated that the loyalty of village communities (clients) is formed because of village heads (patrons) for material (economic) and non-material (non-economic) reasons, such as authority and charisma of the leader; distribution of benefits from individuals or groups in exchange for political support; the loyalty of village communities, according to Jonathan Hopkins; also material factors such as financial aid, village physical infrastructure development assistance, or other economic assistance, according to James C. Scott and Ahimsa.
Information and source credibility towards information adoption amongst upper secondary school students
Authors: Srimulyo Koko , Halim P Achmad
Published: February 2021

The purpose of this study was to determine the extent to which the information quality and source credibility affect the use and the process of information adoption, especially among upper secondary school students as Twitter users who are prone to hoaxes and fake news. Research subject and method: The stratified sample was 100 upper secondary school students in Surabaya who used Twitter and had read or followed threads. The respondents were asked questions to test their dependence on Twitter and their social media behaviour that affected the information adoption process. Information quality has a significant effect on usability, in contrast to source credibility which does not affect the usefulness of information; however, these two dependent variables have a strong relationship which intervenes in the information adoption process among upper secondary school students.
Can Loanwords Be Used to Date Biblical Texts, and If So, How?
Authors: Noonan Benjamin J.
Published: February 2021

The question of whether or not biblical texts can be dated chronologically remains a lively topic of debate, and one important part of the conversation is the use of loanwords for dating biblical texts. This paper examines the philological relationship between lexical borrowings and the date of biblical texts. By focusing on the Hebrew Bible’s non-Semitic vocabulary, it argues that loanwords both cannot and can be used to date biblical traditions. Negatively, there is no clear one-to-one correspondence between a loanword of a given type and the date of a biblical text. Positively, loanwords can be useful for dating biblical texts in certain circumstances: first, the relative number and type of loanwords can point to plausible historical circumstances of borrowing, and second, phonological and morphological features can establish an approximate terminus ante quem for the borrowing.
Influência de fatores emocionais no desenvolvimento de doenças cardiovasculares: uma revisão narrativa
Authors: De Assis Layandra Vittória , Dornelas Amanda da Silva , Fernandes Carolini , Macêdo Carla Vitória de Araújo , Do Prado João Pedro Vieira , Chiriano Marcela , Cunha Márcia Luísa Monteiro , Figueiredo Sarah Lopes , Rocha Vivianne Araujo , Musse Guilherme Neif Vieira
Published: February 2021

Objetivo: Analisar a fisiopatogenia e consequências patológicas do estresse frente a influência deste no desenvolvimento de doenças cardiovasculares, bem como sua prevenção e tratamento clínico. Revisão bibliográfica: As respostas fisiopatológicas do sistema cardiovascular relacionada a eventos de estresse desencadeiam uma complexa cascata imunológica que atingem diversas células do sistema imune, além de estar relacionado com a hiperatividade simpática e com a redução da atividade parassimpática. A prevenção das doenças cardiovasculares por meio da redução do estresse está relacionada a pelo menos três ocasiões: orientação a população sobre a importância da diminuição do estresse e seus efeitos adversos, estresse como fator de risco para grupos de alto risco e o estresse sendo considerado como um marcador de risco. O tratamento requer compreensão frente aos fatores de risco clínicos e psicológicos visando integrar tratamento médico, modificação do estilo de vida e manejo dos estressores psicossociais. Considerações finais: O estresse afeta diretamente o sistema cardiovascular, portanto, práticas que tem demonstrado a redução tais sentimentos como mudanças de comportamento e no estilo de vida e modificação do fator de risco e bem-estar psicossocial são importantes para aliviar o estresse e, consequentemente, o desenvolvimento de problemas cardíacos.
METHODICAL INSTRUMENTS OF ANALYSIS AND FORECASTING OF GRAIN PRODUCTION
Authors:   Natіonal Unіversity of life and environmental sciences of Ukraine, Сhukhlib Alla
Published: February 2021

In the article is reflected theoretical - methodical and applied aspects of realization of analysis of grain production, the system of interrelated indexes that will represent efficiency of production of grain most objectively is reasonable, methodical going near to forecasting the grain production. The efficiency of grain production is to optimize the yield of high quality products from each hectare of land in value terms at a rational cost of all resources per unit of output and maintaining the natural ecological balance. Analytical tools are used to assess the efficiency of grain production, identify patterns and trends in its development in order to improve the efficiency of information and analytical support for grain management. Considering the peculiarities of grain production, it is established that a necessary condition for conducting an analytical study is the formation of a quality system of interconnected and mutually agreed indicators of grain production. Obtaining reliable results of the analysis of grain production is achieved through the use of systematic and integrated approaches to this issue. The methodological basis for forecasting grain production is the theory of development of the object, which reveals the essence of the laws, the main causal relationships of the phenomenon under study. Methodical forecasting tools are used to study the causal links between competitive factors and the system of their reverse influence on the formation of strategies for effective development of grain production, the degree of influence of specific patterns on the research process, presentation of grain forecasting as a dynamic system and reproduction of this system in the future. with a certain degree of probability.
INCLUSIVE STRATEGIC VECTOR OF DEVELOPMENT OF THE SUBJECT AGRICULTURAL AND FOOD SECTOR
Authors:   Odessa National Academy of Food Technologies, Didukh Serhii
Published: February 2021

The article analyzes the socio-economic context of the implementation of an inclusive system of agri-food development. The strategic goals of inclusive development at the macro level have been identified, according to which the ultimate goal is to create a society of common prosperity and well-being. It is shown that the implementation of the principles of inclusiveness involves overcoming certain disparities in development and inequality in their various manifestations. It is substantiated that for the modern agri-food sector of Ukraine the most important task is to form the sphere of employment of the rural population. The strategic directions of inclusive transformation of Ukraine are determined: social, infrastructural, economic and security. The components of the economic aspect of inclusive development are analyzed in detail, which are to create opportunities for effective business activities regardless of place of residence, which is primarily to create and maintain business infrastructure (logistics, banking, Internet). It is shown that the key role in the implementation of an inclusive development system is played by the availability of an optimal legal and regulatory framework for doing business by small businesses. The optimal mechanism of interaction of subjects of agro-food sphere concerning development of inclusive economy is defined. It is substantiated that in the conditions of institutional weakness of the state the functions on introduction of inclusive principles should be distributed between the state, community and private capital. On the basis of the conducted analysis the model of inclusive transformation of subjects of agro-food sphere is carried out. Prospects for further research are to substantiate the applied tools for the implementation of an inclusive system of agri-food development with the distribution of areas of responsibility between public authorities and private entities of different forms of ownership and scale of activity.
POSITIONING OF THE REGION ON THE PRINCIPLES OF BRAND FORMATION
Authors:   State Organization ", Danyluk Liudmyla ,   Mamutov Institute of Economic and Legal Research of NAS of Ukraine"
Published: February 2021

The process of positioning a region is one of the most important tools for attracting investment to a territory. In turn, the methods of work of the human health management system, contributing to the improvement of the quality of life of the population. However, effective tools for positioning the region, which take into account the geographical location, recreational conditions of the territory, the available opportunities, its cultural, national and ethnic identification, as well as differences, have not yet been proposed. This is evidenced by the low level of investment in the regions, the weak development of the real sector of the territory's economy, the rapid decline in the living standards of most of the region's residents, and, as a consequence, the growth in the rate of population migration. Thus, the formation of tools for positioning and identification of the region, which allows you to determine their competitive advantages, is a basic prerequisite for ensuring the economic development of the territory. In modern conditions of the transfer of powers and budgets of state bodies to local governments, the positioning of the region becomes a possible condition for their competitiveness. The article discusses the interpretation of the concept of "positioning", in particular, two of its basic components are highlighted: positioning as a strategy, positioning as a set of actions. Approaches to the positioning of the brand of the region are analyzed, where the region is considered from the position of a unique phenomenon and a complex product with a wide range of properties. The signs of a successful brand are determined, the main goals of branding, assessment, classification of models and stages of positioning the region are highlighted. and also: diagnosis of the situation, formulation of the essence of the brand, a strategic plan for brand promotion. implementation of the strategic plan, assessment of the effectiveness of the formed brand.
Improving profitability: assessment of new rootstocks and planting systems
Authors: Balmer Martin
Published: February 2021

For over 25 years, rootstocks for sweet cherries are evaluated in different locations in the german federal state of Rhenania Palatinate. They are situated in a vine growing climate and have medium-heavy soils. Replant disease of stone fruit plays a significant role in most orchards. In general, all trees in the rootstock trials are trained as central leader and planted 4.0 to 4.5 m by 2.0 to 3.0 m depending on the expected vigour. In addition to the common performance parameters, tree health, anchorage and tendency for root suckers are observed. In 2013 a new rootstock trial has been established including, inter alia, the new Weigi series and some recent Gisela numbers. In the experimental orchard of Oppenheim, replanted soil can be compared to new land. Up to now, Weigi 2 is slightly more dwarfing but also less productive in this trial what is no disadvantage regarding the fruit size. In the group of semi-dwarfing rootstocks Weigi 1, Weigi 3, Gisela 13 and Gisela 17 seem to be similar both in vigour and yield efficiency. In this group there is an interest to replace PiKu 1 which turned out to be not winter hardy enough and susceptible to heavy soils and bark beetles under German conditions. Training trials revealed that also with low tree forms, yields and qualities comparable to the spindle can be obtained. The picking performance can be improved in many cases. Mechanical pruning only makes sense if it is combined with manual correction pruning. An exclusive mechanical pruning reduces the fruit size and can also reduce the picking performance.
Phytochemicals from Castanea spp. buds and green extraction technologies: the Finnover project
Authors: Donno Dario , Boggia Raffaella , Guido Maddalena , Mellano Maria Gabriella , Beccaro Gabriele L.
Published: February 2021

Green economy is a sustainable development tool based on the valorization of economic, natural and social resources. It is recognized as a tool to be applied to all the production sectors (goods and services), as well as for the conservation and sustainable use of natural resources. The FINNOVER project (“Innovative strategies for the development of cross-border green supply chains”) proposes a technical-economic path for the creation and development of new supply chains for the eco-sustainable extraction and use of natural bioactive compounds. In this study, an innovative extraction and re-use strategy to obtain value-added products from botanical by-products was developed as an alternative to waste incineration or composting. It was applied to Castanea sativa bud extract production as a case study, but it could be analogously applied for other herbal preparations. Castanea spp. and their preparations have been widely used for hundreds of years as medicinal plants in composite formulae. Bioactive compounds (botanicals) are quite variable in the plant material, according to genotype (intraspecific chemodiversity), different collection stages, pedoclimatic conditions of sampling sites (wild or cultivation zones), agrotechniques, and post-harvest handling. This research aimed to compare the bioactive compound pattern of Castanea spp. bud preparations (herbal preparations derived from embryonic fresh plant tissues as buds and sprouts) with the composition of extracts derived from the bud-waste management process. Molecules were extracted by the encoded traditional method (maceration in hydroglyceroalcoholic solution) and by green extraction technologies (Pulsed Ultrasound-Assisted Extraction). HPLC methods were used to identify and quantify the main bioactive compounds, and to obtain a specific profile to assess the contribution of every single bioactive class to the total phytocomplex. The established protocol was simple, sensitive and reliable and it could be used for the evaluation and quality control of natural products and relative eco-sustainable extracts. The valorization of bud marcs, which remain after the bud-preparation production, could have a significant economic impact for the commercial producers, representing an important innovation in this sector.
Growth analysis of sweet chestnut burr in two seasons with differing weather conditions
Authors: Perulli Giulio Demetrio , Corelli Grappadelli Luca , Morandi Giulio Demetrio , Bresilla Alexandra
Published: February 2021

In Italy, most of the traditional sweet chestnut (Castanea sativa Mill.) orchards are still non-irrigated since they are located in mountain-hill areas with climate conditions that used to be optimal to sustain the vegetative and reproductive growth of this nut tree species. Nowadays, the increase of summer temperatures and the decrease of rainfall (due to climate change) are affecting negatively chestnut physiological performances. The aim of this experiment was to study sweet chestnut burr growth in two seasons, one warm/dry and one mild/rainy (2017 and 2018, respectively). The study was carried out in a traditional rainfed chestnut orchard. The seasonal burr growth was measured weekly from 30 days after full bloom (DAFB) to the beginning of burr valves opening. Air temperature and daily precipitation were measured at a nearby weather station. The results of this study highlighted that chestnut burr growth seems to be affected by seasonal weather conditions. Indeed, in 2017, the high summer temperatures and the moderate rainfall in summer (227 mm) and winter-spring (385 mm) appeared to affect negatively burr absolute growth rate (AGR; 0.31 mm day-1 ) and consequently final burr size (46.2 mm). The mild and rainy weather conditions that occurred in 2018 (663 and 340 mm of winter-spring and summer precipitation, respectively) positively influenced burr AGR (0.54 mm day-1 ) and therefore its final size (60.8 mm). These preliminary results suggest that the introduction of irrigation as a common management practice for chestnut orchards may promote their resilience to climate change with a positive effect on their productivity and fruit quality.
Effect of biodegradable nonwoven covers on yield and chemical composition of overwintering onion
Authors: Kalisz Andrzej , Sękara Agnieszka , Jurkow Andrzej , Grabowska Aneta
Published: February 2021

Floating row covers are important pre-harvest factors for maximizing the yield of vegetable crops grown under open-field conditions. It is necessary to replace oil-based nonwoven covers with biodegradable ones that are environmentally friendly. The aim of this study was to investigate the effects of biodegradable nonwoven covers, made of aliphatic-aromatic copolyesters, with or without fatty acid dimers (SB20/13, SB21/13, and SB28/13), on yield and chemical composition of ‘Glacier’ and ‘Swift’ winter onions. In the first experiment, we observed a higher total marketable yield and higher harvest index for onions covered with SB21/13 (by 24% and 3%, respectively) when compared to the control (polypropylene nonwoven). The SB20/13 cover significantly decreased mean bulb weight by 15.3% than in control. Bulbs harvested from the plots covered with SB21/13 had lower dry weight by 3.2-3.7% and those covered with SB28/13 showed the lowest L-ascorbic acid content when compared to all other treatments (by 6.3-10.3%). The lowest total sugar content was found in control onion bulbs, but it was significantly different only from bulbs covered by SB20/13, which had more sugar by 10.6%. In the second experiment, plants covered with the SB28/13 had a 1 st grade yield of onions higher by 47% than that of the control. The highest mean bulb weight was obtained from plants covered with the SB21/13 nonwoven. Covering with nonwovens caused a decrease in dry weight (SB20/13 and SB21/13, by 1.3-1.7%, respectively) and L-ascorbic acid (all nonwovens, by 15.6% for SB21/13 up to 22% for SB20/13) in onion bulbs in comparison to the control. Since the tested biodegradable nonwovens covers did not cause any decrease in the yield of winter onions compared to polypropylene nonwovens, the former appear to be a suitable environmental-friendly solution for the open-field cultivation of this important vegetable crop.
Quantum complementarity and operator structures
Authors: Kribs David W. , Livick Jeremy , Nelson Mike I. , Perira Rajesh , Rahaman Mizanur
Published: February 2021

We establish operator structure identities for quantum channels and their error-correcting and private codes, emphasizing the complementarity relationship between the two perspectives. Relevant structures include correctable and private operator algebras, and operator spaces such as multiplicative domains and nullspaces of quantum channels and their complementary maps. For the case of privatizing to quantum states, we also derive dimension inequalities on the associated operator algebras that further quantify the trade-off between correction and privacy.
Windowed Fourier transform and general wavelet algorithms in quantum computation
Authors: Ma Guangsheng , Li Hongbo , Zhao Jiman
Published: February 2021

In this paper, we define the quantum windowed Fourier transform and study some of its properties, then we develop two useful operations called quantum convolution and `integral'. Quantum `integral' allows us to implement the integral transforms quantum-mechanically with a certain probability, including general wavelet kernel transforms. Furthermore, we propose an improved wavelet kernel transform for quantum computation.
Factoring on a quantum annealing computer
Authors: Warren Richard H.
Published: February 2021

This paper is about quantum factoring all integers in an interval. Our goal is to be able to factor all positive integers N < 1,000. We reached this goal on a D-Wave 2000 qubit processor by minimizing (N - (pxq))^2 by using one routine that calls the interface software dw. We sized p<32 and q<256 as Boolean variables. We factored seven semiprimes that could not be factored by the method in a 2016 D-Wave report. We did not use information about the factors for a specific N. The inputs to our routine are N and values for two parameters.
Improving quantum spatial search in two dimensions
Authors: J. Abhijith , Patel Apoorva
Published: February 2021

The question of whether quantum spatial search in two dimensions can be made optimal has long been an open problem. We report progress towards its resolution by showing that the oracle complexity for target location can be made optimal, by increasing the number of calls to the walk operator that incorporates the graph structure by a logarithmic factor. Our algorithm does not require amplitude amplification. An important ingredient of our algorithm is the implementation of multi-step quantum walks by graph powering, using a coin space of walk-length dependent dimension, which may be of independent interest. Finally, we demonstrate how to implement quantum walks arising from powers of symmetric Markov chains using our methods.
A complete characterization of pretty good state transfer on paths
Authors: van Bommel Christopher M.
Published: February 2021

We give a complete characterization of pretty good state transfer on paths between any pair of vertices with respect to the quantum walk model determined by the XY-Hamiltonian. If n is the length of the path, and the vertices are indexed by the positive integers from 1 to n, with adjacent vertices having consecutive indices, then the necessary and sufficient conditions for pretty good state transfer between vertices a and b are that (a) a + b = n + 1, (b) n + 1 has at most one positive odd non-trivial divisor, and (c) if n = 2^t r - 1, for r odd and r \neq 1, then a is a multiple of 2^{t - 1}.
BAR-based Multi-dimensional Nonequilibrium Pulling for Indirect Construction of QM/MM Free Energy Landscapes: Varying the QM Region
Authors: Sun Zhaoxi , Liu Zhirong
Published: February 2021

The indirect construction of the free energy landscape at Quantum mechanics (QM)/ molecular mechanics (MM) levels provides a feasible alternative to the direct QM/MM free energy simulations. The main idea under the indirect method is constructing a thermodynamic cycle, exploring the configurational space at a computationally efficient but less accurate low-level Hamiltonian, and performing an alchemical correction to obtain the thermodynamics at an accurate but computationally demanding high-level Hamiltonian. In our previous works, we developed a multi-dimensional nonequilibrium free energy simulation framework to obtain QM/MM free energy landscapes indirectly. Specifically, we considered obtaining semi-empirical QM (SQM) results by combining the MM results and the MM-to-SQM correction and obtaining the QM results by combining the SQM results and the SQM-to-QM correction. In this work, we explore the possibility of changing the region for electronic structure calculations in the multi-scale QM/MM treatment, which could also be considered as a change of the level of theory. More generally, the multi-dimensional nonequilibrium Hamiltonian-variation/perturbation framework could be used to obtain transformations between different Hamiltonians of interest, such as changing the QM theory, the size of the QM region, and the basis set simultaneously.
Molecular Polaritons Generated from Strong Coupling between CdSe Nanoplatelets and a Dielectric Optical Cavity
Authors: Qiu Liangyu , Mandal Arkajit , Morshed Ovishek , Meidenbauer Mahilet T. , Girten William , Huo Pengfei , Vamivakas A. Nickolas , Krauss Todd D.
Published: February 2021

We demonstrate the formation of CdSe nanoplatelet (NPL) exciton-polaritons in a distributed bragg reflector (DBR) cavity. The molecule-cavity hybrid system is in the strong coupling regime with an 83 meV Rabi splitting, characterized from angle-resolved reflectance and photoluminescence measurements. Mixed quantum-classical dynamics simulations are used to investigate the polariton photo-physics of the hybrid system by treating the electronic and photonic degree of freedom (DOF) quantum mechanically, and the nuclear phononic DOF classically. Our numerical simulations of the angle-resolved photoluminescence (PL) agree excellently with the experimental data, providing a fundamental explanation of the asymmetric intensity distribution of the upper and lower polariton branches. Our results also provide mechanistic insights into the importance of phonon-assisted non-adiabatic transitions among polariton states which are reflected in the various features of the PL spectra. Our work proves the feasibility of coupling nanoplatelets into a dielectric cavity to form a hybrid system and provides a new platform for investigating cavity-mediated physical and chemical processes.
Short Review On Varicose Vein And Its Management
Authors: Pranav N  , Anila K N  , Riju.R.Menon
Published: February 2021

A varicose vein is a condition which affects a large number of people in Western countries and India especially, the northern areas. For curing this proper disease diagnosis, sufficient care for patient and treatment strategies are required, to control the symptoms and signs of varicose vein, the flavonoid group of drugs have been widely used for many years. Under this group, Daflon is the most potent and efficient drug which can be used. This enhances the bioavailability and absorption from the gastrointestinal area. Improved quality of patient's life and efficacy makes this drug therapy more potent and significant. Some of the clinical studies have shown its better action for increased venous tone, lymphatic drainage, decreases cosmetic disfigurement, inflammatory responses occur in microcirculation, protection from free radicals and improved quality of life and efficacy. When compared with other available drugs like Polidocanol, Sotradecol, Asclera, Varithena, Sodium tetradecyl sulfate etc. .clinical benefits of Daflon is more. This drug is useful in the early stage and can be used in severe condition along with sclerotherapy, compression treatment and surgery. Increased patient’s quality of life and increased efficacy were observed in Daflon treated group. Thus it is efficacious as a standard therapy alone and also in combination with other conservative treatment.
Professor Emeritus, Prof. Dr. Dr. h.c. Niko Torelli
Authors: Oven Primož
Published: February 2021

At the end of 2020, Prof. Dr. Dr. h.c. Nikolaj Torelli became a Professor Emeritus of the University of Ljubljana. The title of Professor Emeritus is awarded to retired Professors for their significant contributions to the operation, reputation, and development of the University of Ljubljana. We briefly introduce our new Professor Emeritus and his work.
Reimagining the Sustainable and Social Justice Mathematics Classrooms in the Fourth Industrial Revolution
Authors: Moloi Tshele J , Matabane Mogalatjane E
Published: February 2021

In this conceptual paper, we provide some ways to think about sustainability and a social justice approach to teaching of mathematics in Fourth Industrial Revolution (4IR) classrooms. We imagine the mathematics classrooms in 4IR not only to provide sustainable education, but also to promote core values and qualities of social justice. The teaching of mathematics for social justice is a pedagogy that seeks to expose students to issues concerning power between social groups. It is an approach to teaching that seeks to enable students not only to maintain the status quo, but also to acquire the necessary skills to challenge current practices and offer alternatives. While there is an increasing emphasis on incorporating technology into the teaching and learning of mathematics to produce educated citizenry that will be able to function in 4IR, it is equally important that one guards against unintended consequences brought about by 4IR and not deny access to learners from a low socio-economic environment. Using critical discourse analysis, the paper argues that, as we usher 4IR into the mathematics classroom, one should also be mindful of the social skills that constitute humankind. Social skills and human capital are good foundations for understanding mathematical concepts, and critical skills need to operate effectively and productively in 4IR. Moreover, social skills such as persuasion and emotional intelligence are in higher demand across industries and in education sectors than narrow technical skills, which include, among others, programming or equipment operation and control.
Pemanfaatan Pelepah Sawit dalam Pembelajaran Cermin di SMP Negeri 5 Satu Atap Tanjung Morawa
Authors: Lumban Gaol Rusti
Published: February 2021

Pelepah kelapa sawit dapat dimanfaatkan dalam pembelajaran cermin datar, cekung, dan cembung. Pengembangan media cermin pelepah sawit menjadi solusi karena tidak tersedianya alat-alat yang mendukung pembelajaran dan laboratorium IPA. Tujuan penelitian adalah untuk mengembangkan media cermin pelepah kelapa  sawit sehingga dapat digunakan dalam  proses pembelajaran cermin datar, cekung dan cembung,  seta  meningkatkan hasil belajar siswa dengan cara penggunaan media cermin pelepah sawit pada pembelajaran discovery learning. Metode yang digunakan dengan model ADDIE. Hasil penelitian menjelaskan  bahwa penggunaan  media cermin pelepah sawit dapat meningkatkan hasil belajar siswa yaitu = 33,72  menjadi 82,08 g= 0,72 (kategori tinggi), dengan siswa yang tuntas sebelumnya  6 %  menjadi 89 %. Media cermin pelepah sawit layak digunakan dalam pembelajaran. Media pembelajaran ini juga efektif menciptakan suasana menyenangkan, siswa aktif karena terlibat langsung dalam proses pembuatan alat dan penemuan konsep. Pengembangan media cermin pelepah sawit ini mampu membangun karakter sikap ilmiah siswa yaitu disiplin, jujur, perduli lingkungan, dan kerjasama.
Pengembangan Desain Algoritma Hitung Dasar Berbantuan Program Microsoft Excel
Authors: Sawir Sawir
Published: February 2021

Penelitian dilaksanakan untuk mengetahui keberdayaan media desain algoritma penjumlahan, pengurangan, perkalian, dan pembagian ( porogapit ) hitung dasar cara singkat berbantuan program microsoft excel terhadap motivasi dan hasil belajar 24 siswa kelas IV SD Negeri 1 Tanjungkerta tahun pelajaran 2018/ 2019. Tahap penelitian meliputi: identifikasi media, simulasi instrumen, observasi media, revisi produk, presentasi, dan publikasi produk. Pengumpulan data penelitian melalui proses observasi, pengamatan, serta tes pengetahuan. Analisis data penelitian dilaksanakan secara kuantitatif dan deskripsi kualitatif sebagai dasar simpulan penelitian. Capaian tingkat motivasi belajar siswa 88% sangat setuju, 12% setuju, dan rerata partisipasi 94,17%. Aktivitas keberhasilan kinerja siswa selama proses pembelajaran mencapai 89,33 %. Awal penelitian terdapat 25% mampu memanfaatkan algoritma hitung dasar untuk penyelesaian masalah dalam soal-soal matematika. Melalui tes pengetahuan akhir penelitian dicapai keberhasilan belajar dengan predikat cukup 11 siswa, baik 7 siswa, dan amat baik 3 siswa. Ketuntasan kelas untuk kompetensi pengetahuan akhir penelitian tercapai 87,50%. Disimpulkan terhadap penelitian yang dilaksanakan, bahwa penerapan media desain algoritma penjumlahan, pengurangan, perkalian, dan pembagian ( porogapit ) cara singkat berbantuan program Microsoft Excel dianggap efektif sebagai media pembelajaran matematika.
Causas y consecuencias del cáncer pulmonar
Authors: Menéndez Palacios María Cristina , Mera Chapi Genesis Denisse , Vera Zamora José Ignacio , Zambrano Mendoza Ana Isabel
Published: February 2021

El cáncer pulmonar es una de las enfermedades que más cobran vida año a año en el mundo, y está directamente asociada al tabaquismo, sin embargo la contaminación atmosférica también puede ser causante de enfermedades pulmonares crónicas que a largo pudieran desarrollar cáncer de pulmón, también los fumadores pasivos, tienen atas probabilidades de desarrollar cáncer pulmonar al estar en contacto con fumadores. La metodología de la investigación es una revisión bibliográfica. Aparte de las consecuencias de desarrollar cáncer del pulmón por efecto del cigarro, están las asociadas a los padecimientos que deben enfrentar el paciente por la sintomatología y el tipo de tratamiento que se vaya a emplear, dependiendo del estadio en que el cáncer este.
Síntomas y tratamiento al neonato con hipoacusia
Authors: Pico Tagle Andrea Natacha , Rodríguez Centeno Julio Josué , Borja Zambrano Roger Adalberto , Mero Varela Diana Aracely
Published: February 2021

La alteración sensorial más frecuente de las personas es la hipoacusia. Es una enfermedad con numerosas implicaciones médicas, sociales y culturales. Se denomina hipoacusia o sordera “al defecto funcional que ocurre cuando un sujeto pierde capacidad auditiva, independientemente de la intensidad. Se calcula que, a escala mundial, uno de cada 1,000 niños nace con hipoacusia bilateral profunda y cinco de cada 1,000 con otras formas de sordera. El objetivo fundamental de la presente revisión consiste en plasmar los principales síntomas de la hipoacusia en el niño, así como los factores de riesgo en el neonato. De igual manera se esboza el tratamiento del neonato y el niño diagnosticado con hipoacusia. El modelo de investigación es una revisión de tipo documental bibliográfico. E la revisión se encontró que los principales síntomas de la hipoacusia, en esta etapa de la vida, están referidos a la capacidad de percibir y emitir sonidos, de acuerdo a lo que se espera para esa edad. En el caso del neonato, en la actualidad existen protocolos de cribado que se llevan a cabo con la finalidad de detectar cualquier anormalidad lo antes posible. En cuanto a su tratamiento, múltiples literaturas han dejado en claro los beneficios de la intervención temprana. La terapéutica puede incluir audífonos o prótesis auditivas, implantes cocleares, implantes del tronco cerebral y atención temprana que incluye la intervención logopédica y educativa del niño. La hipoacusia en neonatos por su elevada incidencia y sus numerosas implicaciones se ha constituido en un importante problema de salud mundial. La pérdida o ausencia de la audición en el recién nacido conlleva a una serie de consecuencias negativas que repercutirán en el desarrollo del niño, por tanto, es fundamental la detección temprana y su intervención para garantizar la mejor calidad de vida posible a estos pacientes.
Upgrading of the recording system of complex loading testing machine
Authors: Galiaskarov V. A. , Adilov F. F. , Abirov R. A.
Published: February 2021

The effectiveness of experimental studies of the mechanical properties of materials and the reliability of the results obtained are determined by the technical level of testing machines. The stress-strain state of the object is monitored using recording sensors. The reading accuracy for the existing CL unit is 8%. However, this accuracy appeared insufficient when studying the developed plastic deformations. The problem of insufficient accuracy is partially related to the outdated recording system of the experimental setup, both when taking the results of the experiments and when managing the experiment. Getting of the reliable data upon complex loading is necessary to identify the reserves of the bearing capacity of structural elements in conditions of multi-parameter loading. All the experiments on a CL testing machine were carried out at room temperature. An additional amplifier of the electric signal of the strain gauge sensor was introduced to improve the accuracy of the readings of the recording system. The results of modernizing the recording system of the CL testing machine intended for static isothermal tests of tubular specimens are presented. The testing machine provides testing of the samples under axial tensile force and torque.