bluuebunny/crossref_metadata_2025 huggingface dataset:
FROM ARCHITECTURAL SURVEY TO CONTINUOUS MONITORING: GRAPH-BASED DATA MANAGEMENT FOR CULTURAL HERITAGE CONSERVATION WITH DIGITAL TWINS
Authors: Falcone M. , Origlia A. , Campi M. , Di Martino S.
Published: June 2021

Abstract. Continuous monitoring procedures are becoming even more crucial for assessing the potential deterioration of architectural structures, due to the many inducted advantages. A cultural heritage site, in fact, is constantly subject to degradation, due in particular to atmospheric agents. Preserving it with preventive analyses is an important goal for the scientific community. In this context, data collection methodologies, together with Artificial Intelligence, play a central role for the analysis of surface degradation. This study aims to present a proposal for the automated analysis of the state of degradation of an artefact, exploiting a novel solution including a combination of a graph database and a dynamic Digital Model. In this regard, a preliminary case study is presented, based on the Quadriportico of the Cathedral of San Matteo in Salerno, Italy.
SOCIAL NETWORK ANALYSIS OF SPATIAL HUMAN MOBILITY BEHAVIOUR IN INFECTIOUS DISEASE INTERACTION: AN EXPLORATORY EVIDENCE OF TUBERCULOSIS IN MALAYSIA
Authors: Abdul Jalil I. , Abdul Rasam A. R.
Published: June 2021

Abstract. The movement of individuals between specific locations and the different group contacts of people is essential to predict the future movement and interaction pattern of infectious diseases. Previous studies have shown major factor of infectious disease spread comes from human mobility because a complex and dynamic network of spatial interactions between locations such as the mobility formed by the daily activity of people from place to place. To better understand the such human mobility behaviour, innovative methods are required to depict and analyse their structures by using social network analysis (SNA). This paper aims to investigate the social network structure of selected tuberculosis (TB) case in Klang, Selangor as actors (nodes), and then human mobility (home-work place) data as edge generally used to investigate social network mobility structures and analyse relation among the nodes and study their edges in term of their network centrality. The main finding has revealed that the higher the centrality (degree and betweenness) of a node in the network structure, the higher the chance the node influencing the TB spread in the whole network, after comparing the network graph result with the geographic information system (GIS) mapping approach. Most of the result share the similar result where most of high infection of TB are located in urban and crowded areas. The SNA is a practical knowledge of the social system and contact structure of a community that can therefore provide crucial information to predict outbreaks of infectious diseases in a dynamic spatial phenomena.
SPATIO TEMPORAL DATA CUBE APPLIED TO AIS CONTAINERSHIPS TREND ANALYSIS IN THE EARLY YEARS OF THE BELT AND ROAD INITIATIVE – FROM GLOBAL TO LOCAL SCALE
Authors: Arco E. , Ajmar A. , Cremaschini F. , Monaco C.
Published: June 2021

Abstract. Maritime trade represents a significant part of all global import-export trade. The traffic of containerships can be monitored through Automatic Identification System (AIS), due to the fact that the International Maritime Organization (IMO) regulation requires AIS to be fitted aboard all ships of 300 gross tonnage and upwards engaged on international voyages. The approach proposed by the authors aimed to extract value added information from an AIS dataset, with a focus on maritime economy. Using an AIS dataset of global position of containerships from 01/01/2012 to 31/12/2016, the paper focuses on space-time data cube creation and analysis for a better understanding of maritime trades trends. Data cube creation has been tested at different spatio-temporal bins dimension and on different specific topics (TEU classes, alliances, chokepoints and port areas), analysing the sensitivity on trend results, and highlighting how appropriate spatio-temporal bins dimensions are important to effectively highlight relevant trends. Results of the trend analysis are discussed and validated with the main data and information found over the period 2012–2016. The aim of this paper is to demonstrate the suitability of this approach applied to AIS data and to highlight its limitations. The authors can conclude that the approach used has proved to be adequate in describing the evolution of the global import-export trade.
Spatial variability in the relation between fire weather and burned area: patterns and drivers in Portugal
Authors: Calheiros Tomás , Benali Akli , Silva João Neves , Pereira Mário , Nunes João Pedro
Published: June 2021

Abstract. Fire weather indices are used to assess the effect of weather conditions on wildfire behaviour and the high Daily Severity Rating percentile (DSRp) is strongly related to the total burned area (BA) in Portugal. The aims of this study were to: 1) assess if the 90th DSRp (DSR90p) threshold is adequate for Portugal; 2) identify and characterize regional variations of the DSRp threshold that justifies the bulk of BA; and, 3) analyse if vegetation cover can explain the DSRp spatial variability. We used wildfire data, weather reanalysis data from ERA5, for the 2001–2019 period, and the land use map for Portugal. DSRp were computed for an extended summer period and combined with individual large wildfires. Cluster analysis was performed using the relationship between DSRp and BA, in each municipality. Results revealed that the DSR90p is an adequate threshold for Portugal and well related to large BA. However, at the municipality scale, differences appear between the DSRp linked to the majority of accumulated BA. Cluster analysis revealed that municipalities where large wildfires occur in high DSRp present higher BA in forests and are located in coastal areas. In contrast, clusters with lower DSRp present greater BA in shrublands and are situated in eastern regions. These findings can support better prevention and fire suppression planning.
A local model of snow-firn dynamics and application to Colle Gnifetti site
Authors: Banfi Fabiola , De Michele Carlo
Published: June 2021

Abstract. The regulating role of glaciers on catchment run-off is of fundamental importance in sustaining people living in low lying areas. The reduction in glacierized areas under the effect of climate change disrupts the distribution and amount of run-off, threatening water supply, agriculture and hydropower. The prediction of these changes requires models that integrate hydrological, nivological and glaciological processes. In this work we propose a local model that combines the nivological and glaciological scales. The model describes the formation and evolution of the snowpack and the ﬁrn below it, under the inﬂuence of temperature, wind speed and precipitation. The model has been implemented in two versions: (1) a multi-layer one that considers separately each ﬁrn layer, and (2) a single-layer one that models ﬁrn and underlying glacier ice as a single layer. The model was applied at the site of Colle Gnifetti (Monte Rosa massif, 4400–4550 m a.s.l.). We observed an average reduction of annual snow accumulation due to wind erosion of 2 · 103 kg m−2 y−1 to be compared with a mean annual precipitation of about 2.7 · 103 kg m−2 y−1. The conserved accumulation is made up mainly of snow deposited between April and September, when temperatures above melting point are also observed. End of year snow density, instead, increased in average of 65 kg m−3 when the contribution of wind to snow compaction was added. Observations show a high spatial and interannual variability in the characteristics of snow and ﬁrn at the site and a correlation of net balance with radiation and number of melt layers. The computation of snowmelt in the model as a solely function of air temperature may therefore be one of the reasons of the observed mismatch between model and observations.
Modelling surface temperature and radiation budget of snow-covered complex terrain
Authors: Robledano Alvaro , Picard Ghislain , Arnaud Laurent , Larue Fanny , Ollivier Inès
Published: June 2021

Abstract. The surface temperature controls the temporal evolution of the snowpack playing a key role in many physical processes such as metamorphism, snowmelt, etc. It shows large spatial variations in mountainous areas because the surface energy budget is affected by specific radiative processes that occur due to the topography, such as the modulation of the irradiance by the local slope, the shadows and the re-illumination of the surface from surrounding slopes. These topographic effects are often neglected in large scale models considering the surface as flat and smooth. Here we aim at estimating the surface temperature and the energy budget of snow-covered complex terrains, in order to evaluate the relative importance of the different processes that control the spatial variations. For this, a modelling chain is implemented to derive surface temperature in a kilometre-wide area from local radiometric and meteorological measurements at a single station. The main component is the Rough Surface Ray-Tracing (RSRT) model, based on a photon transport Monte Carlo algorithm to quantify the incident and reflected radiation on every facet of a mesh, describing the snow-covered surface. RSRT is coupled to a surface scheme in order to estimate the complete energy budget from which the surface temperature is solved. To assess the modelling chain performance, we use in situ measurements of surface temperature and satellite thermal observations (TIRS sensor aboard Landsat-8) in the Col du Lautaret area, in the French Alps. The satellite images are corrected from atmospheric effects with a single-channel algorithm. The results of the simulation show (i) an agreement between the simulated and observed surface temperature at the station for a diurnal cycle in winter within 0.3 °C; (ii) the spatial variations of surface temperature are on the order of 5 to 10 °C between opposed slope orientations and are well represented by the model; (iii) the importance of the considered topographic effects is up to 1 °C, the most important being the modulation of solar irradiance by the topography, followed by altitudinal variations in air temperature, long-wave thermal emission from surrounding terrain, spectral dependence of snow albedo, and absorption enhancement due to multiple bounces of photons in steep terrain. These results show the necessity of considering the topography to correctly assess the energy budget and the surface temperature of snow-covered complex terrain.
Unmasking the Healthcare Issues Slipping through the Cracks during the Pandemic
Authors: Pustake Manas , Egan Ciara , Kumar Annora A.
Published: June 2021

Over the last nine years, the International Journal of Medical Students (IJMS) has been assisting medical students to seek excellence in research. From its conception, IJMS has been publishing tri-annually; however, due to the huge number of article submissions to the journal, IJMS is now publishing four issues every year. Since the start of the COVID-19 pandemic, there has been a rise in the incidence of crime and interpersonal violence, including sexual assault. Despite this, it has also been found that the number of such offences reported has decreased. In this editorial, we bring to light the under-recognized issue of sexual assault by highlighting an article regarding medical students' training in caring for assault victims that will be published in this issue. We also discuss other under-recognized healthcare problems in this editorial. This upcoming issue of IJMS is one that not only contains research and experience pieces about the COVID-19 pandemic's ramifications; beautifully recounted and inspiring experiences from medical students can also be found in this issue. Combined with the intriguing case reports and a letter-to-the-editor, we are sure that this upcoming issue will pique the curiosity of our worldwide readership.
Glucometers for Patients with Type 2 Diabetes Mellitus: Are they helpful?
Authors: Thomas Andrew , Shenoy Mohan T. , Shenoy K.T. , George Nirmal
Published: June 2021

Background: The effectiveness of self-monitoring of blood glucose (SMBG) in type 2 diabetes mellitus (T2DM) patients is debated in the literature. We aimed at elucidating the association and patterns of complications between SMBG use and plasma glucose values.

Methods: This cross-sectional study comprised 303 participants from outpatient departments with T2DM for over 12 months. We analyzed sociodemographic and clinical variables including: anthropometry, SMBG use, disease duration, treatment modality, complications, plasma glucose level, and glycated hemoglobin level (%).

Results: The mean duration of T2DM was 93±76 months. Participants were grouped into SMBG users (n=115, 38%) and non-SMBG users (n=188, 62%). The mean fasting plasma glucose levels of SMBG and non-SMBG users were 140.7±42.7 (95% Confidence Interval [95%CI]: 132.72;148.67) mg/dl and 145.4±50 (95%CI: 138.12;152.67) mg/dl (p=0.03), respectively. The mean post-prandial plasma glucose levels of the SMBG and non-SMBG groups were 202±63.42 (95%CI: 190.23;213.76) mg/dl and 209±84.54 (95%CI: 196.56;221.43) mg/dl (p=0.002), respectively. The mean difference in HbA1c among the groups were 8.14±1.69% (95%CI: 7.59;8.68) and 8.15±1.98% (95%CI: 7.27;9.02) (p=0.4), respectively. Hypoglycemia (n=50, 43.5%) was the most common complication. The prevalence of neuropathy (n=5, 4.3%, p=0.036) and cardiovascular disease (n=21, 18.3%, p=0.042) were significantly higher in the SMBG group.

Conclusion: Although plasma glucose values were significantly lower in the SMBG group, its clinical significance remains questionable. Furthermore, many participants in both the groups had shortfalls in awareness, monitoring, and glycemic control. SMBG use needs to be evaluated in a cohort of patients with T2DM with adequate health awareness.
Reflection of a Second Year Medical Student: Navigating Medical School with Chronic Illness
Authors: Blignaut Marcel
Published: June 2021

The medical school journey is one that many are familiar with. However, there lacks familiarity amongst medical students and healthcare professionals about the stories of those who navigate this journey while struggling with chronic health issues. This article will detail a personal story about navigating medical school with chronic illness. In reflecting on simultaneously navigating a medical school and personal health journey, the struggles and successes experienced as well as the lessons learned will be highlighted. The importance of acknowledging, embracing, and sharing these stories will be emphasized through this reflection and a review of similar stories published in medical literature.
The repercussions of the Covid-19 crisis on global markets and the expected scenarios for the advancement of the global economy
Authors:   Edmonton University, Australia, Al kufy Firas
Published: June 2021

The research focuses on assessing and analyzing the impacts of the COVID-19 pandemic and associated impacts on the international market scenarios. Moreover, the research evaluates financial recovery scenarios for global markets to understand the future path of the global economy’s progress and overcoming its current distress. Thus, the aim of conducting relevant research is to provide appropriate guidance to various policymakers regarding the development of economic benefits by coordinating global policies to respond effectively to the implications of epidemiological situations associated with COVID-19. We have monitored many indicators from various countries that seek to overcome the remnants of the epidemic by making use of previous experiences that the world has gone through. With statistical data, we sought to transfer the idea of increasing national income and reducing inflation to several countries. Finally, we sought to find an appropriate solution to restore the global economy to its previous state in the near future and create an economic market that depends on benefiting from the experiences of countries in this field after the pandemic.
Investigation on railway investment-induced neighborhood change and local spatial spillover effects in Nagoya, Japan
Authors: Wang Lisha , JIANG Meilan , MIWA Tomio , MORIKAWA Takayuki
Published: June 2021

Previous studies have proven the significant causal relationship between railway investment and gentrification in some cities. However, most of them have focused on the gentry and less on the effect on other social classes. To observe how railway investment affects neighborhood change for different population types, this study investigated the investment effects of two urban railway lines separately on the neighborhood change of the gentry, older population, and students in Nagoya, Japan. These two railway lines consisting of a subway and an elevated railway opened in the same year and were located in different areas of the city. Moreover, the spatial autocorrelation in panel data was considered to investigate possible local spillover effects. Finally, we observed that the railway investments in highly urbanized areas were more likely to induce gentrification. In addition, railway investment has some significant treatment effects on students compared to the older population.
Clima de aprendizaje en residencias: adaptación transcultural y validación del cuestionario D-RECT al español
Authors: Puyol Raul Bernardo , Giannasi Sergio , Durante Eduardo
Published: June 2021

Introducción. Medir el clima de aprendizaje es un aspecto relevante para estimar la calidad de los programas educativos. El Dutch Residency Educational Climate Test (D-RECT) es un instrumento ampliamente reconocido para ese propósito.

Objetivo. Realizar la adaptación transcultural y validación del D-RECT al español para su utilización en Argentina.

Métodos. A partir del cuestionario original, se realizó el proceso de traducción, y posterior demostración de evidencia sobre validez de contenido (equivalencia lingüística y cultural, y representatividad de los ítems dentro del constructo), proceso de respuesta (pretesteo y entrevistas a grupo piloto), estructura interna y confiabilidad (alfa de Cronbach, análisis factorial exploratorio y confirmatorio, y estudio G).

Resultados. Cumplidas las etapas de adaptación transcultural, validación de contenido y del proceso de respuesta, 403 residentes de diferentes especialidades contestaron la versión en español del cuestionario e ingresaron al estudio. El análisis de propiedades psicométricas se realizó con los 392 cuestionarios completos, revelando evidencia favorable sobre la validez y confiabilidad del instrumento.

Conclusión. Se realizó la adaptación transcultural del cuestionario D-RECT y se confirmó su adecuada validez y confiabilidad para evaluar el clima de aprendizaje en residencias de Argentina.
Iterative multimodality: An exploration of approaches to transmedia writing
Authors: Lynch Daniel , McGowan Lee , Hancox Donna
Published: June 2021

For creative writers, transmedia storytelling represents the opportunity to craft stories across a diverse narrative ecology often made up of print and digital elements. Increasingly, this requires writers to move beyond linguistic narrative renderings, and embrace the semiotic affordances and limitations of numerous media. While contemporary research highlights the importance of multimodality as a facet of transmedia storytelling, little research has focussed on the ways creative writers might approach such an undertaking. This paper examines several transmedia texts characterised by the role multimodality plays in establishing a narrative that, while dispersed across media, maintains narrative cohesion despite the different modal capacities of the media used. Through considering the factors required in continuing narrative consonance, including character and representation, the paper examines iterative multimodality as a framework for understanding how creative writers leverage narrative modes and interaction within and across media.
Stylistics in the creative writing curriculum: A problem-posing approach
Authors: Bolland Craig
Published: June 2021

The synergies between creative writing instruction and stylistic analysis have been noted for more than a decade in the Stylistics literature – see for example Michael Burke (2010: 7; 2013), Jeremy Scott (2013a; 2013b: 99), et al – but there remain very few case studies of the implementation of such an approach. The undergraduate unit KWB211: Stylistics, taught at the Queensland University of Technology, takes a Stylistics approach to the teaching of creative writing to an undergraduate cohort, and furthermore uses the Freirean notion of problem posing as a methodological and philosophical basis for its pedagogic approach. This paper presents a case study of the content and approaches of KWB211: Stylistics. It argues that the natural synergies between the field of Stylistics and the field of Creative Writing can inform the teaching of literary technique to a cohort of undergraduate writers, and that Stylistics can be made to be a practitioner-facing example of literary theory especially when using a problem posing approach to instruction.
Too, too many of us? Memoir as rogation in creative mentorship
Authors: Bradley Smith Susan
Published: June 2021

Autoethnographic memoirs as a genre form part of the experience economy, and as an art form are also spiritually anchored to storytelling’s role in forming community. In the contemporary university and elsewhere, however, accounting systems for productivity do not always nurture or are able to calculate the value of abstract forms of mentorship afforded by the simple act of sharing story. Shared reflexivity about practice – such as storytelling – is essential to Creative Writing pedagogy because it allows congenial opportunities for formative development of emerging writers. This essay argues for the simple importance of mentorship through shared, spoken stories – micro-memoirs – of ‘the writing life’ to the work of fostering systems of belief in emerging writers. Such sharing develops trust and conviction which in turn promotes a professional commitment to the Creative Industries. Autoethnographic revelations of the practitioner-teacher in the creative workshop – through acts of disclosure exploring the complex ways of ‘becoming a writer’ – thus constitute a significant form of knowledge transfer.
Eschatologies, and future-looking reminiscence
Authors: Miller Andrew
Published: June 2021

Traditionally, authors of memoir, life writing, and autoethnography have used prose to tell their stories, with the occasional image to supplement their narratives. In the multimedia age some life writers are turning to art, photography, design and technology to increase the scope of their research and writing. In turn, such authors have created new authorial identities and become graphic-authors, artist-scholars, or even bricoleurs. Writing for artist-authors takes on a more Derridean flavour, and comes to incorporate all manner of meaning-making inscriptions, including images, design, and non-verbal elements. Readers, too, become active rather than passive, challenged to read against traditional left-to-right reading gravity and to navigate between different textual elements (as they do online). Readers become viewers and participants, and the text shifts from ‘readerly’ to ‘writerly’ in the Barthesian sense. Consequently, authors are designing new hybrid forms of life narrative for on-screen viewing rather than on-page reading; in other words, for digital rather than paper forms of dissemination and authorship. As screen-based visual-verbal constructions, art(e)facts combine art, virtuality and facts to create evocative critical-creative bricolages.
Seismic Pounding Between Adjacent Buildings: A Review
Authors: MOHAMED Hossameldeen , ELYAMANY Ghada , KHALIL Eehab
Published: June 2021

The collision between adjacent buildings with an insufficient seismic separation distance has been reported after earthquakes. This collision between adjacent buildings, commonly referred to as earthquake-induced pounding, entails huge damages to the involved buildings. The main cause of damage was interpreted to the developed impact forces between colliding buildings. The intensity of the impact force relies on many factors, therefore, a significant research effort was found to address this issue from different perspectives. This paper presents a summary of the main research conducted in the context of structural pounding namely, field observations, experimental and numerical studies. The main recommendations and results of each category have been highlighted and insights for future research are provided.
A Newborn Admitted with Hyponatremia and Hyperkalemia Clinic and Diagnosed with Primary Hypoaldosteronism
Authors: Sakar Merve , Çetinkaya Semra , Arifoğlu Barış Ilter , Öktem Ahmet , Zenciroğlu Aysegül , Bundak Rüveyde , Savaş Erdeve Şenay
Published: June 2021

Primary hypoaldosteronism is a rare autosomal recessive disorder that causes defects in aldosterone synthase enzyme activity due to an inactivating mutation in the CYP11B2 gene. Patients with primary hypoaldosteronism exhibit symptoms such as vomiting, dehydration, feeding problems, and failure to thrive. This disease is characterized by hyponatremia, hyperkalemia, metabolic acidosis, high renin, and low aldosterone levels. It also causes salt loss syndrome in the newborn period. In this article, we described a newborn with primary hypoaldosteronism who showed feeding problems and weight loss. Laboratory findings revealed hyponatremia, hyperkalemia, high plasma renin, and low aldosterone levels, while genetic analysis showed homozygous c.788T>A (p.Ile263Asn) variant in the CYP11B2 gene (NM_000498.3). Our patient responded well to oral salt and fludrocortisone treatments. Early diagnosis and treatment are particularly important because primary hypoaldosteronism causes life-threatening electrolyte disorders and salt loss syndrome.
Domestic Lifestyle and Nutritional Status of Children During Covid-19 Pandemics
Authors: Bülbül Selda , Gülbahçe Aliye , Koç Gökşen Nil , Ata Ali Emrecan , Kocagözoğlu Sevim Gonca
Published: June 2021

Objective: After Covid-19 pandemic was declared, a number of restrictions have been imposed all over the world. We aimed to detect changes in eating habits of children and adults during Covid-19 pandemic when lifestyle changes were inevitable due to these restrictions.
Methods: This is a descriptive cross-sectional study. The data collection process was completed by online questionnaire forms sent via mail system. There were questions about demographic characteristics of the participants and their children, lifestyle changes during the pandemic period and awareness of the pandemic. Participants with more than one child were asked to use the information of their youngest children. In statistical analyzes we used “Statistical Package for Social Science” (SPSS) 20.0 for Windows. Pearson Chi-square test was used for comparisons of categorical variables. The significance level was accepted as p≤ 0.05 in all statistical processes.
Results: A total of 327 people between 19-65 years of age participated in this study, and 174 of them had children with a mean age of 6.8 years, including 96 (55.7%) boys and 78 (44.3%) girls. Among all children, physical activity decreased in 101 (58%), screen time increased in 87 (50%) and 40 (23%) of them consumed their meals in front of the screen. The snacking habits of 130 (74.8%) children increased, 34 (19.5%) started consuming too much junk food and 12 of them (6.9%) gained weight. We observed that boys consumed more food than girls during their stay at home when compared to usual prerestriction days as they felt anxious and troubled (p=0.02).
Conclusion: Pandemics do not affect our lives not only with disease burden but also, have effects on daily lives of families and children. During this period, besides precautions against infection, special interest should be given to feeding, sleeping habits and physical activities that would boost immune system and measures should be taken to prevent harmful habits.
Langerhans Cell Histiocytosis with Isolated Central Diabetes Insipidus, Low Grade Fever and Sellar Erosion
Authors: Okur Iclal , Ari Hasan , Çetinkaya Semra , Derinkuyu Betul Emine , Çağlar Gizem , Çınar Hasibe Gökçe , Yeşil Sule , Savaş Erdeve Senay
Published: June 2021

Langerhans cell histiocytosis (LCH) is a rare disease of the monocyte-macrophage system. Although it is known that bone involvement is seen very frequently in cases with LCH, our case is the first case with a lytic-destructive lesion in the bone structure forming sella turcica.
A 4-year-old, 5-month-old male patient who applied to our outpatient clinic was diagnosed with Langerhans cell histiocytosis in further examination after the diagnosis of central diabetes insipidus (CDI) was made. On cranial magnetic resonance imaging (MRI), widespread lytic-destructive bone lesions were observed in the bone structure forming the sella (sphenoid bone), sellar destruction not previously described in the literature.
Sellar erosion has not been reported before in cases diagnosed with LCH in the literature. The presence of low-grade fever in a patient presenting with isolated CDI is a warning sign for the diagnosis of LCH.
福建省花卉产业出口竞争力分析
Authors: 屈 敏南 , 廖 汶钊
Published: June 2021

本文根据福建省花卉产业的发展现状，分析福建省花卉出口存在的问题，并通过国际市场占有率、出口贡献率、贸易竞争力指数、显示性比较优势、显示性竞争优势指数、出口增长优势指数等一些数据指标，对福建省花卉出口定量分析；再运用波特的钻石模型理论，从六个方面对福建省花卉出口定性分析，总结出福建省花卉出口竞争力的相关情况，并提出增强福建省花卉产业出口竞争力的建议。
外商直接投资与净出口对河南省经济增长的影响研究
Authors: 刘 佳怡 , 杨 国梁 , 黄 凯筳
Published: June 2021

外商直接投资可视为一种涵盖先进技术、知识等要素的复合资本，对东道国经济增长有多方面的影响；而河南省在深化自由贸易的政策下，持续推动空中、陆上、互联网、海上丝绸之路的协同发展，以形成全方位、多层次与宽领域的经济增长。本文利用多元回归模型，以河南省1985~2018年外商直接投资与净出口贸易数据探究其对经济增长的影响。本文同时采用平稳性检验、格兰杰因果关系检验和协整检验，并通过脉冲响应分析研究变量间的相互作用。结果表明外商直接投资与净出口皆对河南省经济增长具有正向促进作用，其中净出口的影响稍大于外商直接投资；但此影响在2008年金融危机后产生负向冲击，对于外商直接投资尤甚。因此，在中美贸易争端升级和新冠肺炎疫情的不利影响下，河南省应持续利用政策刺激出口，并着力中小企业升级转型、支持高新技术企业，应对外商直接投资变化对经济增长可能带来的负面影响，促进经济稳定发展。
搭便车行为下多品牌多渠道的供应链博弈
Authors: 张 有中
Published: June 2021

网络渠道的发展，造成了以网络为主要销售渠道的网货品牌兴起，也使得传统品牌纷纷从零售模式开展网络渠道成为双渠道模式，整个零售市场发展成为传统品牌双渠道模式、BOPS模式与网货品牌直销模式的多种品牌不同渠道竞争市场。本文研究竞争市场中的双渠道供应链、网络直销供应链与网络下单门市速提的BOPS供应链，在搭便车行为影响下的定价博弈模型，得到供应链的成员在分散式决策与集中式决策下的最优定价策略，并发现各博弈方的最优定价，是关于渠道交叉及品牌交叉价格弹性系数的增函数，且渠道竞争的影响较品牌竞争更为显著。搭便车行为确实会影响最优定价及最优利润，网络渠道可藉由搭便车行为获利，零售渠道则因搭便车行为遭受损失。
新零售时代我国农产品营销模式创新研究
Authors: 周 功建
Published: June 2021

“新零售”自2016年提出以来，就得到零售行业的高度关注，这种在线下与物流深入融合的革新性营销理念，为我国农产品营销模式的创新提供了新思路。本文着重分析“新零售”的内涵及特征，并针对我国农产品营销现存的问题，探讨“新零售”下农产品营销的创新模式。
Територіальне розміщення пожежних підрозділів різної функціональної спроможності
Authors: Kustov Maksym , Sobol Oleksander , Fedoryaka Oleg
Published: June 2021

Розроблено математичну модель територіального розміщення пожежних підрозділів різної функціональної спроможності. Модель заснована на математичних методах геометричного розміщення просторових об’єктів складної форми. Функціональні спроможності пожежних підрозділів ранжовані за кількістю сил та засобів та співставленні з рівнями пожежної небезпеки локальних територій та окремих об’єктів. Запропонований підхід по розподілу об’єктів за окремими рівнями, що відповідають необхідній кількості пожежних підрозділів для забезпечення достатнього рівня пожежної безпеки дозволяє отримувати карту пожежної небезпеки локальної території. Модель територіального розміщення пожежних підрозділів враховує час прямування до місця пожежі з урахуванням існуючої мережі транспортних комунікацій та постадійне нарощування сили та засобів при гасінні масштабних пожеж. Цільовою функцією моделі є мінімізація кількості пожежних підрозділів на окремій локальній території із забезпеченням відповідного рівня пожежної безпеки в кожній точці цієї території. Розв’язання задачі комбінаторної оптимізації за допомогою дерева рішень дозволяє використовувати добре відомі та ефективні способи та алгоритми автоматизованого розв’язання. Розроблена математична модель дозволяє визначати, як найбільш оптимальні місця розміщення пожежних підрозділів в міській забудові, так і допустимі області їх розміщення для допомоги у плануванні забудови головному архітектору міста. Також дана модель дозволяє визначати допустимі області розміщення центрів допомоги громадян на території об’єднаних територіальних громад із сукупним врахуванням районів обслуговування пожежної охорони, швидкої медичної допомоги та поліції. Зворотне вирішення описаної в роботі задачі дозволяє перевіряти правильність вже розміщених пожежних підрозділів та визначати райони міста із недостатнім рівнем захищеності від пожежної загрози
Щодо ліквідації наслідків надзвичайних ситуацій за допомогою робототехнічних комплексів
Authors: Sobyna Vitaliy , Taraduda Dmytro , Sokolov Dmytro , Dement Maksym
Published: June 2021

Розроблено алгоритм управління робототехнічним комплексом під час ліквідації наслідків надзвичайних ситуацій, що виникають на об’єктах, на яких експлуатуються чи транспортують небезпечні хімічні, радіоактивні чи вибухонебезпечні речовини. Запропонований алгоритм дозволяє синтезувати реакцію на вхідні команди і характеристики замкнутого контуру цілком незалежно. У роботі пропонується новий силовий контролер, який має дві явні переваги: по-перше, він має робастну структуру сервосистеми, тобто коли ведеться управління зусиллям реакції від середовища, то водночас контролюється стійкість і збереження досить високої швидкодії; по-друге, управління зусиллям ведеться через положення, тобто запропонований силовий контролер включає систему управління траєкторією. Вирішення поставленої мети відбувалося шляхом застосування моделі імпедансу та зворотної кінематики в системі управління рухом. З метою подальшої верифікації алгоритму управління робототехнічним комплексом при ліквідації наслідків надзвичайних ситуацій в роботі сформульовано якісні та кількісні значення основних тактико-технічних характеристик робототехнічного комплекса, такі як: дальність радіо- і телеуправління, частота радіо- і телеканалу, максимальна потужністю радіоактивного випромінювання в зоні роботи комплекса, максимальна концентрація основних небезпечних хімічних речовин в зоні роботи комплекса, максимальна потужність теплового потоку в зоні роботи комплекса та час його роботи в таких умовах, а також максимальна швидкість пересування комплекса. На основі вивчення вітчизняного і зарубіжного досвіду застосування мобільних роботів в роботі розроблено загальну структурну схему робототехнічного комплексу для ліквідації наслідків надзвичайних ситуацій. Також розроблено траєкторію руху робототехнічного комплексу при проведенні попередньої розвідки в зоні умовної надзвичайної ситуації. При проектуванні траєкторії руху було застосовано наступні алгоритми з характерними для них умовами та обмеженнями: алгоритм на основі уявлень про траєкторію руху у вигляді орієнтованого ациклічного графа; алгоритм знаходження K найкоротших шляхів між двома заданими вершинами в орієнтованому ациклічному графі; алгоритм призначення ваг вершинам зазначеного графа з урахуванням габаритних розмірів і вимог до мінімізації енергоспоживання. Подальші дослідження планується присвятити розробці натурного зразка робототехнічного комплекса для ліквідації наслідків надзвичайних ситуацій, що виникають на об’єктах, на яких експлуатуються чи транспортують небезпечні хімічні, радіоактивні чи вибухонебезпечні речовини
Розробка імовірнісної моделі типового фрагмента відомчої цифрової телекомунікаційної мережі ДСНС
Authors: Feshchenko Andrey , Zakora Alexander , Borisova Larisa
Published: June 2021

Проведений аналіз призначення, умов роботи складових елементів, ієрархічності структури відомчої цифрової телекомунікаційної мережі Державної служби з надзвичайних ситуацій України, яка розглядається як сукупність типових мережевих фрагментів. Представлена структура типового фрагменту відомчої цифрової телекомунікаційної мережі у вигляді структурної схеми надійності без резервування, яка складається з центрального, регіонального і районного вузлів, послідовно з'єднаних каналами зв'язку. Обґрунтовані потрібні значення ймовірності безвідмовної роботи вузлів і каналів відомчої цифрової телекомунікаційної мережі в залежності від потрібного значення структурної надійності типового фрагменту. Запропоновано застосування структурного роздільного двократного резервування вузлів з різними ступенями ієрархії для типових фрагментів з метою одночасного зниження вимог до надійності вузлів відомчої цифрової телекомунікаційної мережі. Розроблена імовірнісна модель типового фрагменту відомчої цифрової телекомунікаційної мережі у вигляді блок-схем надійності для структур з багатократним резервуванням центральних, регіональних районних вузлів і каналів зв'язку. Отримані аналітичні вирази для дослідження впливу структури типового фрагменту відомчої цифрової телекомунікаційної мережі на його надійність шляхом статистичного математичного моделювання. Приводяться аналітичні й графічні матеріали статистичного математичного моделювання по дослідженню залежності ймовірності справного стану типового фрагмента відомчої телекомунікаційної мережі від структури типового фрагменту з резервуванням і надійності відповідних мережевих вузлів і каналів зв'язку. Рекомендована доцільність з метою підвищення імовірності справного стану типового фрагмента відомчої цифрової телекомунікаційної мережі на етапі проектування обирати структури з двократним резервуванням вузлів як мінімум на центральному рівні, як максимум на всіх рівнях, та розраховуючи на проміжні значення надійності при резервуванні вузлів центрального та регіонального рівня
Role of Comprehensive Diagnostic, Imaging and Treatment Strategies in Endodontic Retreatment of a Maxillary Molar with Unusual Anatomy: A Case Report
Authors: Ahuja Kritika , Gupta Sachin , Nikhil Vineeta
Published: June 2021

An appreciation of the anatomic complexity of the root canal system is essential at every step of endodontic treatment. Endodontic treatment of teeth with unusual root canal anatomy presents a unique challenge. This clinical case report presents the application of cone beam computed tomography as a useful imaging technique in endodontics for the management of teeth with aberrant anatomy. Failure to detect an extra canal may lead to treatment failure. The current report presents the management of a previously endodontically treated maxillary first molar with missed additional mesiobuccal and distobuccal canals.

Keywords: CBCT, Canal Morphology, Maxillary molar, Missed canal, Retreatment.
Analysis of the Effect of Exchange Value, Inflation, Product Sharing and Gross Domestic Products on Development Sharia Banking Assets in Indonesia
Authors: Arif Muhammad , SU HB. Tarmizi , Syafi’i M.
Published: June 2021

Islamic banks have had a significant development in assets, where during the last ten years the assets of Islamic banks reached 524 trillion rupiah in 2019. However, although the number of assets tends to increase, the percentage of Islamic bank assets grew slowly from 2016 to 2019. It was recorded that the growth of Islamic bank assets in 2016 grew by 22.10% (yoy) and finally in 2019 it grew by 9.93% (yoy), in line with the slowdown in financing channeled by Islamic banks. Banks in their operational activities cannot be separated from the influence of economic conditions. In this study, using analysis from outside the company, namely by using analysis of the macroeconomic environment. Macroeconomic variables used are the exchange rate, inflation, and Gross Domestic Product (GDP), where these three factors are the impact of the global financial crisis in 2008, and greatly affect the condition of the Indonesian economy. As well as the internal factors of the bank itself, namely profit sharing. The purpose of this study is to determine how much influence the exchange rate, inflation, profit sharing, and GDP both partially and simultaneously affect the development of Islamic bank assets in Indonesia. This type of research is quantitative research with panel data. This study uses panel data regression analysis techniques, namely using data combining cross section and time series, where this research is carried out using the common effect, fixed effect and random effect model specification test using the Chow test and the Hausman test. The population and sample of this study are the 10th quarterly financial reports of Islamic commercial banks in Indonesia using purposive sampling technique. The model chosen in this study is the Fixed Effect Model (FEM). The results showed that partially the exchange rate and inflation variables had a positive but insignificant effect on the development of Islamic bank assets, while the profit sharing variables and gross domestic product had a positive and significant effect on the development of Islamic bank assets. While simultaneously the exchange rate, GDP, inflation and profit sharing variables have a positive and significant effect on the development of Islamic bank assets.

Keywords: Exchange Rate, Inflation, Profit Sharing, GDP and Asset Development.
Profitability and Resource Use Efficiency in Cassava Production: Evidence from Delta State, Nigeria
Authors: Gbigbi Theophilus Miebi , Chuks-Okonta V.A.A.
Published: June 2021

Cassava has played and continues to play an outstanding role. The country's failure to meet current demand has been due to the efficiency of farmers' use of resources. The study examined resource use efficiency in cassava production. Data from 120 cassava producers were carefully chosen using random sampling procedure. Descriptive statistics and multiple regression model were applied to analyze the data. The results disclosed that the greater part of the growers were female with mean age of 45 years, educated and married. The mean household size was 6 persons with mean farming experience of 16 years. Majority of the producers belong to farming association. The result of cost and returns shows that the total production cost , total revenue realized and profit were N221,500, N398,000 and N176,500 respectively with BCR of 1.80 which implies that cassava production is profitable. The regression estimated showed that farm sizes, fertilizers, labour and planting material influence the output produced. The estimated output elasticity was 0.934, which means decreasing return to scale. The result indicated that farm size, fertilizers, labour and planting materials were inefficiently used, thereby dropping below the best economic level. The low ratios of MVP / MFC of the entire variables were shown to be less than unitary. Approximately 56.19%, 99.98%, 97.67%, 99.99% and 11.28% increase in MVP are necessary to optimize the allocation of farm size, fertilizer, labour, planting material and agrochemical. Major problems include inaccessibility to financial services, high labour cost, poor market prices and insufficient extension services. Agricultural policies should be aimed at supplying agricultural inputs, such as fertilizer and effective extension programs to guarantee the productive usage of resources. It is also suggested that extension facilities be intensified to provide farmers with information on new innovations and methods of farming while steps should be taken to lessen the militating effect of the constraints.

Keywords: Resource Use Efficiency, Cassava Production, Benefit-Cost Analysis, Farmers.
Oral Health Status of Special Children in Tribal Population of Southern India
Authors: Katragadda Naveen , V Teja Mounika , Durga Mahendra Tivanani Venkata
Published: June 2021

Introduction: The oral health needs of intellectually disabled are complex and may be related to underlying congenital or developmental anomalies as well as the inability to receive adequate personal and professional care to maintain. This research suggests that people with Intellectually Disability such as Mental retardation, are more likely to have poor oral hygiene, periodontal diseases and high incidence of trauma and possibly more likely to have caries than people without Intellectual disability.
Aim: The study aims to assess the oral hygiene status and prevalence of malocclusion among special children in tribal population of Southern India.
Materials and Methods: Mouth mirror, periodontal probe, straight explorer were used to examine the children.
Results: The obtained data are subjected to chi-square test to compare between demographical variables. Statistical significance was fixed at p-value <0.001.
Conclusion: We hereby conclude that the maintenance of oral hygiene is difficult among mentally disabled children due to their improper level of understanding. Therefore it is also essential to enlight or to bring awareness and knowledge among the parents, caregivers, about maintaining the proper oral hygiene status and preventive measures.

Keywords: Mental Retardation, Malocclusion, Dental Caries, Periodontal Diseases, Treatment Intervention.
Rectal Tuberculosis - A Complete Review
Authors: Jayaraj Nived , Shabaraya A. R.
Published: June 2021

Tuberculosis (TB) is a communicable disease caused mainly by Mycobacterium tuberculosis and its most frequent location is lung. Tuberculosis which affects the rectum is a rare extra-pulmonary sort of the disease that needs recognition because it requires specific treatment. Clinical and endoscopic presentations of intestinal TB are often almost like those of other diseases, like neoplasias and regional enteritis. Therefore, a high level of suspicion is required, as well as the performance of microbiologic studies, to confirm the diagnosis. Tuberculosis which affects the rectum is called rectal tuberculosis. Most common symptoms of rectal tuberculosis are abdominal pain, hematochezia, bowel habit change, episodes of rectal bleeding. The causative organisms of the disease include Mycobacterium tuberculosis and Bovis. Diagnosis of rectal tuberculosis is based on characteristic endoscopic appearance of lesions, histopathologic features of tuberculosis in biopsy/ resected material, and response to antitubercular therapy. It is still a great challenge even for experienced clinicians to diagnose the abdominal tuberculosis since it is an excellent mimicker that has unusual presentations. A high index of suspicion is important for reaching its diagnosis.

Keywords: Rectal tuberculosis, Tuberculosis, Rectal TB.
Assessment of Knowledge of Radiographic Students about Radiation Protection Devices, Their Use and Handling
Authors: Yadav Lakshmi , Boora Navreet , Kumar Raushan
Published: June 2021

Aim: The aim of this study to assess the knowledge of radiographic students about radiation protection devices, their use and handling.
Methods: A prospective, questionnaire-based study was carried out in Department of Radiological and Imaging Techniques. A validated questionnaire was circulated among undergraduate and postgraduate Radiographic students.
Result: Out of 169 participants was 150(88.7%) of undergraduate, postgraduate and diploma students of radiological and imaging techniques filled questionnaire in this study. To assess knowledge about radiation protection devices, their use and handling, which they gain during theory classes and from hospital posting. There were 58(38.7%) were female and 92 (61.3%) were male.
Conclusion: Study concluded that there should be proper theory classes for the conduction of knowledge about radiation protection devices, their use and handling in radiology department. Training session and teaching standards should be taken in account for not only the number of hours required to obtain the knowledge with the equipment required to run the classes in the simulation-based learning environment. This questionnaire-based survey demonstrates that up-to-date radiation protection devices, their use and handling skill in among radiography students of college of paramedical sciences were not sufficient, this should be improved by the well-designed training and theoretical sessions. From this study, we suggest that all members of the health care community should attend the webinars, guest lectures and training sessions about knowledge of radiation protection devices, their use and handling in radiology department.

Keywords: Radiation protection devices, Lead equivalent, X-ray, Radiology department.