bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluating the Performance of WRF-Solar Model for 72-Hour Ahead Global Horizontal Irradiance Forecasting in West Africa: A Case Study of Ghana
Authors: Sawadogo Windmanagda , Fersch Benjamin , Bliefernicht Jan , Meilinger Stefanie , Kunstmann Harald
Published: February 2023

Accurate forecasting of solar irradiance is crucial for the integration of solar energy into thepower grid, power system planning, and the operation of solar power plants. The WeatherResearch and Forecasting (WRF) model, with its solar radiation (WRF-Solar) extension, hasbeen used to forecast solar irradiance in various regions worldwide. However, the applicationof the WRF-Solar model for global horizontal irradiance (GHI) forecasting in West Africa,specifically in Ghana, has not been studied. This study aims to evaluate the performance ofthe WRF-Solar model for GHI forecasting in Ghana, focusing on 3 health centers (Kologo,Kumasi and Akwatia) for the year 2021. We applied a two one-way nested domain (D1=15km and D2=3 km) to investigate the ability of the WRF solar model to forecast GHI up to 72hours in advance under different atmospheric conditions. The initial and lateral boundaryconditions were taken from the ECMWF operational forecasts. In addition, the optical aerosoldepth (AOD) data at 550 nm from the Copernicus Atmosphere Monitoring Service (CAMS)were considered. The study uses statistical metrics such as mean bias error (MBE), root meansquare error (RMSE), to evaluate the performance of the WRF-Solar model with theobservational data obtained from automatic weather stations in the three health centers inGhana. The results of this study will contribute to the understanding of the capabilities andlimitations of the WRF-Solar model for forecasting GHI in West Africa, particularly inGhana, and provide valuable information for stakeholders involved in solar energy generationand grid integration towards optimized management of in the region.Keywords: WRF-Solar; Global horizontal irradiance; Forecasting; West Africa; Ghana
Paleogene-Neogene evolution of the central-western Rif fold-and-thrust belt (Northern Morocco) by means of thermal modeling
Authors: Atouabat Achraf , Schito Andrea , Leprêtre Rémi , Mohn Geoffroy , Corrado Sveva
Published: February 2023

The Rif belt (Northern Morocco) represents the western termination of the Maghrebides system. It is subdivided into three tectono-stratigraphic domains known as: Internal domain (i.e., Alboran domain), the Maghrebian flysch domain (i.e., the sedimentary cover of the Maghrebian Tethys) and the external domain (i.e., north African passive paleo-margin and its sedimentary infill. The Rif fold-and-thrust belt derives from the deformation of the North African passive Paleo-margin and its sedimentary infill since the onset of Africa-Eurasia convergence. The compressional setting led to the progressive closure of the Maghrebian Tethys and westward translation of the Alboran Domain and its docking onto the Northwest African rifted margin during the Late Burdigalian. However, field structural survey revealed the presence of an important Paleogene unconformity in the External domain, attesting for a deformation older than the Miocene Alpine compression.Thus, to unravel the Cenozoic history of the Rif fold-and-thrust belt and its burial paths, a regional transect NE-SW-oriented crossing the Rif fold-and-thrust belt is studied. The methodological approach consists in combining organic petrography, micro-Raman spectroscopy on organic matter, clay mineralogy and 1D thermal modelling, together with field structural data.A new paleo-thermal data set of vitrinite reflectance (Ro%), Raman micro-spectroscopy and %I in I/S mixed layers has been provided. The obtained results show a thermal jump between the Miocene deposits in the Mesorif (External Domain) and their Eocene substratum. In order to fit the paleo-thermal data, the thermal modelling indicates the erosion of about 1300-1900 m of sedimentary and/or tectonic pile before the deposition of Lower Miocene siliciclastic. The obtained results have been used to highlight a disregarded tectonic event affecting the north African paleo-margin and how it is influencing the Miocene orogenic processes.
Multi-sensor monitoring and data integration reveal cyclical destabilization of the Äußeres Hochebenkar rock glacier
Authors: Hartl Lea , Zieher Thomas , Bremer Magnus , Stocker-Waldhuber Martin , Zahs Vivien , Höfle Bernhard , Klug Christoph , Cicoira Alessandro
Published: February 2023

Abstract. This study investigates rock glacier destabilization based on the results of a unique in situ and remote-sensing-based monitoring network focused on the kinematics of the rock glacier in Äußeres Hochebenkar (Austrian Alps). We consolidate, homogenize, and extend existing time series to generate a comprehensive dataset consisting of 14 digital surface models covering a 68-year time period, as well as in situ measurements of block displacement since the early 1950s. The digital surface models are derived from historical aerial imagery and, more recently, airborne and uncrewed-aerial-vehicle-based laser scanning (ALS and ULS, respectively). High-resolution 3D ALS and ULS point clouds are available at annual temporal resolution from 2017 to 2021. Additional terrestrial laser scanning data collected in bi-weekly intervals during the summer of 2019 are available from the rock glacier front. Using image correlation techniques, we derive velocity vectors from the digital surface models, thereby adding rock-glacier-wide spatial context to the point-scale block displacement measurements. Based on velocities, surface elevation changes, analyses of morphological features, and computations of the bulk creep factor and strain rates, we assess the combined datasets in terms of rock glacier destabilization. To additionally investigate potential rotational components of the movement of the destabilized section of the rock glacier, we integrate in situ data of block displacement with ULS point clouds and compute changes in the rotation angles of single blocks during recent years. The time series shows two cycles of destabilization in the lower section of the rock glacier. The first lasted from the early 1950s until the mid-1970s. The second began around 2017 after approximately 2 decades of more gradual acceleration and is currently ongoing. Both destabilization periods are characterized by high velocities and the development of morphological destabilization features on the rock glacier surface. Acceleration in the most recent years has been very pronounced, with velocities reaching 20–30 m a−1 in 2020–2021. These values are unprecedented in the time series and suggest highly destabilized conditions in the lower section of the rock glacier, which shows signs of translational and rotational landslide-like movement. Due to the length and granularity of the time series, the cyclic destabilization process at the Äußeres Hochebenkar rock glacier is well resolved in the dataset. Our study highlights the importance of interdisciplinary, long-term, and continuous high-resolution 3D monitoring to improve process understanding and model development related to rock glacier rheology and destabilization.
Dependent or not? From a daily practice of Earth observation research in the Global South to promoting adequate developmental spaces in science and technology studies
Authors: Thorpe Daniel
Published: February 2023

Abstract. Ever since the operation of the first civilian Earth observation (EO) satellites gained momentum in the 1970s, potential benefits and disadvantages of transferring space science and technologies, such as remote sensing techniques, have also been discussed in relation to developing countries. However, this debate has so far largely taken place at a macro-comparative level. This paper presents results from moving to the ethnographic micro level in southwest Nigeria. It sets the experiences of researchers from the Global South, who use remote sensing data, in relation to a critical review of (post-)development theory perspectives and corresponding discourses in postcolonial science and technology studies (STS). The paper discusses how researchers construct collective agency towards capacity building as a shared liberatory language in relation to an amalgam of experienced and contested places in the EO community. At the intersection of STS, geography and the arena of development policies, these experiences create their own spatial references to a developing niche that invites scholars and development practitioners to rethink and reorganise knowledge production and technologies in a postcolonial world.
On the use of Infrared Atmospheric Sounding Interferometer (IASI) spectrally resolved radiances to test the EC-Earth climate model (v3.3.3) in clear-sky conditions
Authors: Della Fera Stefano , Fabiano Federico , Raspollini Piera , Ridolfi Marco , Cortesi Ugo , Barbara Flavio , von Hardenberg Jost
Published: February 2023

Abstract. The long-term comparison between simulated and observed spectrally resolved outgoing longwave radiation (OLR) can represent a stringent test for the direct verification and improvement of general circulation models (GCMs), which are regularly tuned by adjusting parameters related to subgrid processes not explicitly represented in the model to constrain the integrated OLR energy fluxes to observed values. However, a good agreement between simulated and observed integrated OLR fluxes may be obtained from the cancellation of opposite-in-sign systematic errors localized in specific spectral ranges. Since the mid-2000s, stable hyperspectral observations of the mid-infrared region (667 to 2750 cm−1) of the Earth emission spectrum have been provided by different sensors (e.g. AIRS, IASI and CrIS). Furthermore, the FORUM (Far-infrared Outgoing Radiation Understanding and Monitoring) mission, selected to be the ninth ESA Earth Explorer, will measure, starting from 2027, the terrestrial radiation emitted to space at the top of the atmosphere (TOA) from 100 to 1600 cm−1, filling the observational gap in the far-infrared (FIR) region, from 100 to 667 cm−1. In this work, in anticipation of FORUM measurements, we compare Infrared Atmospheric Sounding Interferometer (IASI) Metop-A observations to radiances simulated on the basis of the atmospheric fields predicted by the EC-Earth Global Climate Model (version 3.3.3) in clear-sky conditions. To simulate spectra based on the atmospheric and surface state provided by the climate model, the radiative transfer model σ-IASI has been integrated in the Cloud Feedback Model Intercomparison Project (COSP) package. Therefore, online simulations, provided by the EC-Earth model equipped with the new COSP–σ-IASI module, have been performed in clear-sky conditions with prescribed sea surface temperature and sea ice concentration, every 6 h, over a time frame consistent with the availability of IASI data. Systematic comparisons between observed and simulated brightness temperature (BT) have been performed in 10 cm−1 spectral intervals, on a global scale over the ocean, with a specific focus on the latitudinal belt between 30∘ S and 30∘ N. The analysis has shown a warm BT bias of about 3.5 K in the core of the CO2 absorption band and a cold BT bias of approximately 1 K in the wing of the CO2 band, due to a positive temperature bias in the stratosphere and a negative temperature bias in the middle troposphere of the climate model, respectively. Finally, considering a warm BT bias in the rotational–vibrational water vapour band, we have highlighted a dry bias of the water vapour concentration in the upper troposphere of the model.
Lessons learnt from rockfall time series analysis: data collection, statistical analysis and applications
Authors: Melzner Sandra , Conedera Marco , Hübl Johannes , Rossi Mauro
Published: February 2023

Abstract. Historical rockfall catalogues are important data sources for the investigation of the temporal occurrence of rockfalls, which is a crucial information for rockfall hazard and risk assessments. However, such catalogues are rare and often incomplete. Here, we analyse seven catalogues of historical rockfalls in Austria, Italy, and the USA to highlight existing relationships between the data collection and mapping methods and the representativeness of the resulting rockfall records. Heuristic and simple statistically-based frequency analysis methods are applied to describe and compare the different historical rockfall catalogues. Our results show that different mapping strategies may affect the frequency of the assessed rockfall occurrence and the completeness/representativeness of the related time series of historical rockfalls. We conclude presenting the advantages and limitations of the application of different frequency-based methods for analysing rockfall catalogues and providing recommendations for rockfall mapping. We furthermore present non-parametric statistical methods for dealing with typically small rockfall datasets which are particularly suited for the characterization of basic rockfall catalogues. Such recommendations should help for the definition of standards for collecting and using temporal rockfall data in hazard and risk assessments.
A New Methodology for Upscaling Semi-submersible Platforms for Floating Offshore Wind Turbines
Authors: Roach Kaylie Laura , Lackner Matthew A. , Manwell James F.
Published: February 2023

Abstract. This paper presents a new upscaling methodology for floating offshore wind turbine platforms. The size and power rating of offshore wind turbines have been growing in recent years, with modern wind turbines rated at 10–14 MW in contrast with 2–5 MW in 2010. It is not apparent how much further wind turbines can be increased before it is unjustified. Scaling relations are a useful method for analyzing wind turbine designs, to understand the mass, load, and cost increases with size. Scaling relations currently do not exist but are needed for floating offshore platforms to understand how the technical and economic development of floating offshore wind energy may develop with increasing turbine size. In this paper, a hydrodynamic model has been developed to capture the key platform response in pitch. The hydrodynamic model is validated using OpenFAST, a high-fidelity offshore wind turbine simulation software. An upscaling methodology is then applied to two semi-submersible case studies, in which the platform pitch angle at rated wind turbine thrust is constrained to a specified value. The results show that platform dimensions scale to a factor of 0.75, and the platform steel mass scales to a factor of 1.5 when the wall thickness is kept constant. This study is the first to develop generalized upscaling relations that can be used for other semi-submersible platforms, in contrast with other studies that upscale a specific design to a larger power rating. This upscaling methodology provides new insight into trends for semi-submersible platform upscaling as turbine size increases.
Historicising Australian Deportation of 'Suspect' and 'Undesirable' Migrant Communities
Authors: Marmo Marinella , Smith Evan , Varnava Andrekos
Published: February 2023

The overall aim of the paper is to present evidence on the factors underpinning historical deportation cases, by exploring the reasons, explanations and patterns related to deportation in Australia. The purpose is to consider whether these historical factors are antecedent to current forms of deportation occurring in Australia, and to bring to the fore potential recurring patterns. Deportation is currently conceptualised by border criminologists as a punitive tool of discipline and control, within the realm of penal powers. Some of this work on the ‘deportation regime’ asserts that certain migrants, or groups of migrants, are undesirable: their identity, (not)belonging and punishment have become inherently intertwined, and their mobility has become politicised and criminalised. This article theorises that deportation has been used in Australia, now and in the past, to expel individuals who are viewed as detrimental to the ‘health’ of the host society. The ‘deportation categories’ demonstrate that migrants’ desirability has historically been a temporary condition, shifting over time in line with the state’s requirements. They also demonstrate the historical regime of criminalisation of undesirable others enacted through Australia’s border control regime.
Critical Historical Criminology in the Antipodean: Unthinking History and Criminology in the Global South
Authors: Catello Roberto
Published: February 2023

This paper makes a call for a critical historical criminology of the antipodean and the Global South. It makes a preliminary argument for a critical historical criminology that is against method and in favour of political alliances with critical perspectives that can enrich historico‑criminological understandings in an antipodean and Southern context. In particular, this paper explores the potential for a politico-academic alliance between critical historical criminology and postcolonial studies, Southern theory and Indigenous research. Such politico-academic alliances reveal that critical historical criminology is best understood as a negation of both criminology and history and that historical criminology does not have to be understood as a new sub-discipline and academic specialism at the intersection of history and criminology. On the contrary, this paper argues that historical criminology can be approached as a critical attempt to ‘unthink the social sciences’ and to ‘de-discipline ourselves’.
High Heterogeneity LULC Classification in Ujung Kulon National Park, Indonesia: A Study Testing 11 Indices, Random Forest, Sentinel-2 MSI, and GEE-based Cloud Computing
Authors: Asy'Ari Rahmat , Ranti Aulia , Rahmawati Azelia Dwi , Zulfajrin Moh , Nurazizah Lina Lathifah , Putra Made Chandra Aruna , Khairunnisa Zayyaan Nabiila , Prameswari Faradilla Anggit , Pramulya Rahmat , Zamani Neviaty P. , Setiawan Yudi , Sudrajat Ajat , Anggodo
Published: February 2023

The Ujung Kulon National Park (UKNT) is one of the national parks on the island of Java and has an essential role in saving endemic species in Indonesia. As a form of national park conservation effort, the completeness of LULC spatial data is a primary database that is indispensable in determining national park management policies. Therefore, this research was conducted to map the LULC (Land Use - Land Cover) in the forest landscape with high heterogeneity in UKNT. Sentinel-2 MSI (Multispectral Instrument) image data were classified using the Random Forest (RF) classification algorithm and tested using 11 index algorithms. The classification process takes place on a cloud computing-based geospatial platform, Google Earth Engine (GEE). This test resulted in 10 LULC classes; water had the broadest percentage of 45.44%. Meanwhile, the primary forest has an area of 21,868.41 or about 19.53% of the total area of the national park. However, there are some discrepancies in the spatial information generated by this classification process, so it is considered necessary to evaluate the combination of indexes, training data, and classification algorithms to limit the classification area. Therefore, this study is expected to be considered for further research related to LULC in high-heterogeneity landscapes.
Diversity of insect flower visitors of cayenne pepper in agricultural landscapes, Banggai, Central Sulawesi
Authors: Alingan Pramoto , Sataral Mihwan , Qodri Agmal
Published: February 2023

The existence of semi-natural habitats around agricultural land has the potential to support ecosystem services by providing resources for beneficial insects. The study aimed to analyze the abundance, diversity index, and evenness of the insects visiting cayenne flowers. This research was carried out in cayenne cultivation areas in the Banggai Regency. Sampling locations were divided into two categories: cayenne fields close to and far from forests or semi-natural habitats. Insect collection was carried out from June 2022 to August 2022, in the morning and evening, using insect nets. The results showed that 16 families and 52 cayenne flower-visiting insects were identified. Lasioglossum sp.3, Lasioglossum sp.5, Megachile sp.2, ?Parancistrocerus sp. and Rhynchium sp. have a higher abundance than the others.  The highest Shannon and Wiener diversity index was found in cayenne fields in Tolisu Village (H'= 2.491), Mansahang (H'= 2.216), Salodik (H'= 2.145), and the lowest in cayenne fields in Kembang Merta Village (H'= 1.211), Dale-Dale (H'= 1.112 ), and Beringin Jaya (H'= 1.149 ). The highest evenness index (E) was found in the fields in Lembah Makmur Village (E= 0.9721) and Mansahang (E= 0.9172), and the lowest was found in cayenne fields in Petak Village (E= 0.3975) and Lenyek (E= 0.4405). The highest species richness was found in cayenne fields in Tolisu (14 species), Salodik (14 species), and Petak (12 species). Cayenne fields in the three villages are close to semi-natural habitats. Our findings show that agricultural land adjacent to semi-natural habitats has increased the species richness of cayenne flower visitor insects. Thus, semi-natural habitats are critical to sustaining insect communities in agricultural landscapes.
From The Ground Up: Expert Perceptions of Lower Limb Activity Monitoring in Tennis
Authors: Lester Matthew , Peeling Peter , Girard Olivier , Murphy Alistair , Armstrong Cameron , Reid Machar
Published: February 2023

Understanding on-court movement in tennis allows for enhanced preparation strategies to improve player readiness and performance. Here, we explore expert physical preparation coaches’ perceptions of elite training strategies for preparation and performance in tennis, with special reference to lower limb activity. Thirteen world renowned tennis strength and conditioning coaches were interviewed in a semi-structured method that explored four key topic areas of physical preparation for tennis: i) the physical demands; ii) load monitoring practice; iii) the direction of ground reaction forces application during match-play; and iv) the application of strength and conditioning for tennis. Three higher-order themes emerged from these discussions: i) off-court training for tennis should be specific to the demands of the sport, ii) the mechanical understanding of tennis lags our physiological approach, and iii) our understanding of the lower limb’s contribution to tennis performance is limited. These findings provide valuable insights into the importance of improving our knowledge relevant to the mechanical demands of tennis movement, whilst highlighting important practical considerations from leading tennis conditioning experts.
El reto de mantener los principios de la economía social a largo plazo: el caso de TUSGSAL
Authors: Bernardo Valeria , Hernández Adell Ismael , Serrano Robles Eloi
Published: February 2023

Las organizaciones de la economía social se encuentran en un momento importante desde el punto de vista económico y social. Nuevos modelos de negocio, el papel de la innovación, la atención a los grupos de interés, el impacto social y ambiental, así como el sistema de gobernanza resultan centrales para poder consolidarse y aportar valor a su entorno externo e interno. En el ámbito interno resulta particularmente relevante prestar la atención necesaria a las personas y la puesta en valor de los principios que caracterizan a la economía social y que motivaron la creación de la organización. En este sentido, la autogestión de las empresas propiedad de los trabajadores está estrechamente ligada a la capacidad de integrar los principios de la economía social en la organización. La comprensión y adopción, por parte de los integrantes de la empresa de dichos principios resulta determinante para su buen funcionamiento y viabilidad. A pesar de ello, con el paso del tiempo, la integración de los principios de la economía social puede sufrir distorsiones, y con ello, generar tensiones que afecten negativamente a la organización. El presente artículo infiere sobre algunas de las variables que pueden incidir en la eventual pérdida de esa concepción, como son la antigüedad, el género o el colectivo profesional dentro de la empresa. Para ello, se realiza un estudio de caso en la sociedad laboral TUSGSAL mediante una encuesta y grupos focales que aporta nuevas evidencias al debate de la gestión de las empresas propiedad de los trabajadores y trabajadoras.
An Analysis of Dropout Rate of Students after Flood at Secondary Level District Rajanpur Multan
Authors: Hussain Marium , Khadim Kiran , Aslam Hifsa , Ghufran Munzza
Published: February 2023

This research is carried out to substantiate the effect of flood on dropout rate of students in flood affected area. In the present study responses were obtained from 51 teachers from the district Rajanpur. Data is collect through self-administered questionnaire from public schools of flood affected areas based on non-probability convenience sampling method. Data is the analyzed using MS excel and (SPSS) Statistical Package Social Sciences. The descriptive statistics tools were used to analyze including percentage and mean scores. It appears that majority of female students are dropout from schools due to flood. The flood negatively impact on school classrooms and Sanitation caused dropout of students. Due to flood the children were victims of waterborne diseases like diarrhea are caused children dropout rate in secondary level. The gender affected equally with flood but the female dropout percentage is greater than male which shows that female students have high rate as compare to male students.
AVALIAÇÃO DA PREVISÃO SEMI-EMPÍRICA DA CAPACIDADE DE CARGA DE ESTACAS ESCAVADAS E HÉLICE-CONTÍNUA A PARTIR DE RESULTADOS DE PCEs INSTRUMENTADAS
Authors: Oliveira Bismarck Chaussê , de Paula Limiro Gabriella Cândida , Sales Maurício Martines
Published: February 2023

RESUMO: Métodos semi-empíricos de previsão da capacidade de carga de estacas baseados em sondagens SPT devem ser usados com cautela, observando-se as particularidades de cada situação. Dada a ampla utilização desses métodos, em um contexto de otimização de projetos de fundações é fundamental analisá-los à luz de dados mais refinados. Neste sentido, esse trabalho tem como objetivo avaliar a performance de alguns métodos semi-empíricos brasileiros a partir de resultados de provas de carga estáticas instrumentadas (PCEIs), que por fornecerem dados reais de transferência de carga, possibilitam uma análise mais refinada dos métodos. Para tal, trabalhou-se com um banco de dados de 42 PCEIs (21 em estacas escavadas e 21 em hélice contínua). As previsões semi-empíricas de capacidade de carga de cada parcela resistente foram comparadas aos valores medidos nas PCEIs. Observou-se que os métodos apresentam baixa exatidão na previsão das cargas lateral e de ponta, com resultados ligeiramente melhores para a carga total. Nota-se também uma grande dispersão de resultados, sobretudo para estacas escavadas e para a parcela resistente de ponta. Ainda, observou-se que para estacas de grande diâmetro os resultados foram mais satisfatórios. As análises ressaltam a importância de se avaliar a previsão de comportamento de estacas em termos de transferência de carga, dada as diferenças expressivas de resultados entre os componentes da capacidade de carga. 
ABSTRACT: Semi-empirical methods for pile bearing capacity prediction based on SPT should be used with caution, considering the particularities of each situation. Given the wide use of these methods, in a context of optimization of foundation design it is fundamental to analyze them in the light of more refined data. In this sense, this paper aims to evaluate the performance of some Brazilian semi-empirical methods from the results of instrumented static load tests (ISLT), which, by providing real data of load distribution along the pile, allow a more refined analysis of the methods. For this purpose, a database of 42 ISLT (21 of bored piles and 21 of continuous flight auger piles) was used. The semi-empirical predictions of ultimate shaft and tip resistance and bearing capacity were compared to the values measured in the ISLT. There was also a large scatter of results, especially for bored piles and for the tip resistance. Furthermore, it was observed that for large diameter piles the results were more satisfactory. The analyses highlight the importance of evaluating the prediction of pile behavior in terms of load transfer, given the significant differences in results between the components of load capacity.
State Regulation and Development Prospects for Crediting Agricultural Farms in the Republic of Armenia
Authors: BAYADYAN ANNA
Published: February 2023

Agricultural farms now play a significant role in almost all countries. The purpose of
agricultural farms is to provide the population with food, as well as raw materials for
developing a range of industrial branches of the economy. More than a billion
economically active people work on agricultural farms around the world. The food
security of the country depends directly on working farms. At present the issue of
agricultural crediting is of great importance.
Agricultural farms are considered to be the most vulnerable group. In the crediting
process, they face a number of obstacles: compliance with crediting conditions,
insufficient guarantees, etc. The first and main problem of crediting to agricultural farms
is their weakest level of development.
The paper discusses the state policy for crediting agricultural farms of the Republic
of Armenia. The peculiarities for crediting agricultural farms of the RA have been studied.
The role of the country in the management of this sector has been presented. An attempt
has been made to analyze the current process of agricultural credit. Obstacles and ways
for developing agricultural credits in the RA have been revealed.
Food Security Issues of the Republic of Armenia
Authors: VARDANYAN TATEVIK , MINASYAN SUREN
Published: February 2023

The issue of providing the population with food is the oldest of the global problems
of mankind. Given the fact that by 2050 the world's population will reach 9 billion people
and the demand for food will increase by 60%, the world community and individual
countries need to pay close attention to the problem of food security. Recent
developments over the world, including Russian-Ukrainian conflict and economic
sanctions against the Russian Federation, which could lead to a reduction in production
capacity due to food security, restrictions on food exports, and disruption of logistic
chains, pose significant risks for countries dependent on foreign food markets.
Considering the fact that both Russia and Ukraine are the main markets for food imports
to Armenia, the study of Armenia’s food security system is gaining new importance,
raising the need to consider alternative markets.
Analysis and Evaluation of the Interrelationships of the Labor Market Indicators of the Regions (Marzes) of the RA and the City of Yerevan
Authors: TADEVOSYAN ZOYA , DAVTYAN KAMO , MATEVOSYAN DIANA
Published: February 2023

Issues in the field of employment basically predetermine both the current trends in
the economic development of any country and long-term expectations. Therefore, the
analysis of employment indicators and their qualitative and quantitative assessment form
sufficient practical grounds for an objective and scientific solution to the problems of
economic activity of the population. In this article, the indicators characterizing the
employment market of the territorial units of the Republic of Armenia, including the city of
Yerevan, were analyzed, using econometric models. And the relationship and interaction
between macroeconomic indicators and employment indicators were evaluated. The results of the analysis show that, according to territorial units, both employment indicators and other macroeconomic indicators in Armenia are highly polarized, and positive trends in economic development are manifested mainly in Yerevan and Syunik regions. The results
of econometric models "economic growth - reduction of unemployment", in turn, reveal
the gap between the capital and the regions in terms of reducing unemployment.
Problems of increasing agricultural competitiveness in the regions of RA Vayots Dzor and Ararat
Authors: HOVAKIMYAN ARPINE , KARAPETYAN TSOVINAR , SIROYAN GARIK , FIDANYAN LIANA , KHACHATRYAN MARIAM , QARAMYAN HASMIK
Published: February 2023

The agricultural sector of the Republic of Armenia has traditionally been and remains one of the leading sectors of the country's economy. Taking into account the problem of food security and the priority of rural development, as well as the existing challenges in the field of agriculture, it is important to identify problems in the field of increasing the competitiveness of the agricultural sector and take appropriate measures. These measures should be aimed at creating an appropriate legal framework in the field of agriculture, ensuring favorable conditions for investment in this area, developing agriculture and rural infrastructure, promoting export-oriented production, and introducing new achievements in science and technology.
PENGARUH PROFITABILITAS, UKURAN PERUSAHAAN, UMUR PERUSAHAAN, DAN UKURAN DEWAN KOMISARIS TERHADAP PENGUNGKAPAN AKUNTANSI SUMBER DAYA MANUSIA
Authors: Anggraini Nelly , Fransiska Christina
Published: February 2023

The objectives of this study are: (1) Analyzing profitability variables has a significant positive effect on the disclosure of Human Resource Accounting to Manufacturing companies listed on the Indonesia Stock Exchange; (2) Analyzing the Company Size variables has a significant positive effect on the disclosure of Human Resource Accounting to Manufacturing companies listed on the Indonesia Stock Exchange; (3) Analyzing the Company's Age variables has a significant negative effect on the disclosure of Human Resource Accounting to Manufacturing companies listed on the Indonesia Stock Exchange; (4) Analyzing the Variable Size of the Board of Commissioners has a significant positive effect on the disclosure of Human Resource Accounting to Manufacturing companies listed on the Indonesia Stock Exchange. This research uses quantitative. The results of this study are: (1) Variable profitability has a positive effect and does not affect the disclosure of Human Resource Accounting. (2) The company size variable and Variable size of the commissistic board has a positive and significant effect on the disclosure of Human Resource Accounting; (3) The company's age variable has a negative and insignificant effect on the disclosure of Human Resource Accounting
PENGARUH STRUKTUR AUDIT, PENGALAMAN, KESESUAIAN PERAN DAN INDEPENDENSI TERHADAP KINERJA AUDITOR INTERNAL PEMERINTAH DAERAH
Authors: Geofanny Geofanny , Yuni Sri
Published: February 2023

This study aims to determine of the effect of audit structure, experience, appropriateness of roles and independence on the performance of local government internal auditors (Empirical Studies at the Inspectorate of Central Kalimantan Province, Palangka Raya City and South Barito District) sample Kalimantan Province there were 54 respondents, Inspectorate of Palangka Raya City had 9 respondents and Inspectorate of Barito Selatan Regency had 10 respondents,number of auditors was 73 respondents.Data analysis used SPSS 25.This (1) the audit structure has no effect on the performance of local government internal auditors (2) Experience has no effect on the performance of audito (3) Suitability of roles has a positive effect on the performance of local government internal auditors.(3) Independence has a positive effect on the performance of local government internal auditors. (4) The results of the audit structure hypothesis testing, experience of role suitability and independence on the performance of the local government internal auditors simultaneously have a positive effect
Towards Lean Manufacturing in Developing Countries: Research Gaps and Directions in Tanzania
Authors: Sinkamba Francis , Matindana Juma , Mgwatu Mussa
Published: February 2023

In the current knowledge-driven economy, many industries across the globe are forced to adopt manufacturing technologies such as lean manufacturing to remain competitive in the globalized world. Despite the increase in lean manufacturing implementations, the adoption rate in Tanzania is very low and estimated to be 8 percent. Likewise, the sustainability of lean manufacturing tools and practices is still questionable, which shows the need to develop lean maturity models. To date, several lean maturity models have been developed but there is a lack of maturity models that consider different levels of manufacturing industries. The study presented in this paper focused on the pre-implementation, implementation, and post-implementation phases of lean manufacturing. To achieve this aim, a systematic literature review and social network analysis using VOS viewer 1.6.18 were conducted. The literature was obtained from four academic databases: Emerald, Elsevier, Springer, and Taylor and Francis. The search covered the period from 2010 to 2022. Of the 100 publications analyzed on lean manufacturing, only 1 percent is from low-income developing countries and 5 percent of publications from Africa. The study has identified that there are few numbers of research publications on lean manufacturing in Africa and low and lower-middle-income developing countries in general, as a result there is a low rate of implementation of lean manufacturing in low and lower-middle-income developing countries. It is recommended that more studies on the drivers and barriers, critical success factors, and lean assessment be conducted in developing countries.
Current and Future Trends of Construction Project Performance Models: A Review
Authors: Mtana Method , Mwaluko George , Matindana Juma
Published: February 2023

The construction industry (CI) has experienced outstanding growth and contributed to economic growth for many countries, with enormous foreign investments that require quality projects. High pressure to reduce the construction cost and time commonly put the industry at risk of lower quality and safety of the construction facilities. Like many other developing countries, Tanzania needs more stringent quality control measures in the construction sector to contribute positively to sustainable growth. This study thus reviews current and future trends in construction industry performance in Tanzania. The literature review on construction projects (CPs) performance is based on information on time overruns from contractors, clients, and consultants of the Tanzanian CIs. Initially, 300 literatures were reviewed and manually screened to about 50 literatures. Results showed that 56% of the 50 reviewed literatures indicate the need to reduce the time overruns in CPs. Further, it was noted that more responsibility in addressing time and cost overrun challenges in the CPs lies on clients, consultants, and contractors. Moreover, planning scheduling factors (PSF) is noted to be the most noteworthy category of factors that greatly influence project performance. In contrast, records and documentation factors (RDF) scored as the second most significant factor in performance in terms of cost overruns. The study, therefore, concludes that contractors, clients, and consultants should have an adequate cash flow plan, properly manage financial resources, advance site management through experts, and institute appropriate planning and scheduling. Thus, these research findings propose factors that lead to time overrun, thus portraying the establishment of robust systems to eliminate time overrun causes.
Preparation and Characterization of Microporous Cellulose Membranes as Potential Pathogen Filters
Authors: William Joshua , Alexander Tausi , Nambela Lutamyo , Haule Liberato , Ndazi Bwire , Bulemo Peresi
Published: February 2023

Growth and development in the textile and fashion industry have resulted in the generation of large amounts of industrial pre-consumer textile wastes. It is estimated that 10 to 20% of textile fabrics are wasted during garment manufacturing, with most of the wastes being burned or landfilled. Reusing pre-consumer fabric wastes is therefore considered a viable approach to alleviate environmental impacts associated with their disposal. To achieve a higher porosity membrane, pre-consumer cotton fabrics were partially dissolved in a solution of dimethyl acetamide (DMAc) and lithium chloride (LiCl), and the resulting fibre suspension was utilized to prepare a microporous cellulose membrane (MCM) through a vacuum filtration method. The suspension comprised a mixture of partially and completely dissolved fibres, which provided the required morphological and structural integrity to the fibrous membranes. The membranes’ chemical structure, fibre size, and morphology were characterized based on Fourier transform infrared spectroscopy (FT-IR), light microscope, and field emission scanning electron microscopy (FE-SEM), respectively. The filtration efficiency of the microporous cellulose membranes was evaluated against 500 ppm sodium chloride (NaCl) solutions. The results showed that the filtration efficiency of the membranes ranged between 31.82 and 59.85% for cellulose membranes with 60.2% porosity, suggesting that the membranes could be applied as filters against pathogens upon further improvement.
Criminaloid Dynamics of Financial Crime in Indonesia
Authors: . Supriyanto , E. Meliala Adrianus
Published: February 2023

White-collar crime has an aspect of criminaloid in the form of moral and ethical, trust, and occupational violence. The intersecting white-collar crime context with moral and ethical violence leads to action disharmony based on the cultural ethic principles of certain sub-cultured groups. On the other hand, the correlation with trust violence includes job-legitimation abuse. For professional violence, the realization includes job legitimation. The results are observable in the criminal statistics data of Indonesia. The trend shows significant fluctuations, such as the crime statistics in Indonesia from 2011 to 2019. The lowest rate was observable in 2018, with 17.813 cases. On the other hand, in the previous years, the rate tended to be stable, with 20.470 cases in 2011. The cases decreased to 20.033 cases in 2012 and increased to 21.345 in 2013. Then, the rate increased again in 2014 to 21.404. In 2015, the rate increased to 21.646. In 2016, the rate decreased to 20.459. This research identified the criminaloid aspect of financial crime in Indonesia. The applied method was a qualitative grounded theory with case illustration. The researchers focused the cases illustration on 5 cases based on criminal statistic classification. The researchers interviewed the informants comprehensively on these five cases based on the pre-determined criteria.

Keywords: [Criminaloid, financial crime, Indonesia]
An Experimental Model to Manage Power Flows in Isolated Wind System for Irrigational Regime
Authors: Kim Tuan Doan , Ngoc Dung Nguyen Thi
Published: February 2023

This paper focuses on irrigational problem in isolated systems with the participation of wind power generation. Power flows in whole system are regulated basing on analyzing the relation of ambient temperature and humidity, capacity of energy storage system (ESS). It means that the higher humidity is, the less water is; the higher temperature is, the more water must be used; the lower capacity is, the lower power consumption is. An experimental model is established to describe the irrigational problem and verify the ability to regulate power flows in a system including three water pumps, Raspberry Pi board controller, a 100-W wind generator and a battery. Python application was used to designed and programmable human-machine Interface (HMI) and control relays corresponding to different operating modes by using measurement or virtual information. Control command can be created by manual or automation basing on analyzing the relation of ambient temperature and humidity, capacity of ESS. Experimental results showed the ability to regulate power flows in whole system based on the evaluation of the irrigational demand and available energy supply. It also showed the good meaning in reality to improve life time for ESS and good capability to irrigational demand.

Keywords: Energy power flow, irrigational regime, isolated power grid, power-flow management, control power flow.
The Analysis of Production Line Balance Using the Moodie Young Method at X Inc.
Authors: Polewangi Yudi Daeng , Sutrisno Sutrisno , Fitri Adelia Rachmatul
Published: February 2023

The goal of this study is to determine how much the level of efficiency the production line at PT. X by using the Moodie young approach. The three components of the method - Line Efficiency, Balance Delay, and Smooth Index - are utilized to assess the degree of balance in the manufacturing line. The findings indicated that there were 5 work stations with 7 work elements in the real production line configuration, with a Line Efficiency of 40.29%, a Balance Delay of 59.70%, and a Smoothness Index of 9578.22. As a consequence of the research utilizing the Moodie Young approach, the new production lines are composed of 3 work stations with 7 work elements and a Line Efficiency result of 67.15%, Balance Delay of 32.84%, and Smoothness Index of 4449.71.

Keywords: Line Balancing, Moodie Young, Line Efficiency, Balance Delay, Smooth Index
Legal Certainty in Implementing LPS-LKPP Decisions in Government Procurement of Goods/Services Disputes of Contract
Authors: Dewi Siregar Fitri Yanni , Pandi Harahap Ahmad Ari , Ramadhan Muhammad Citra
Published: February 2023

Credible and accountable procurement of goods/services can be carried out if all parties involved in the procurement of goods/services are guided by the provisions that apply based on the principles and ethics of procurement. Issuance of Decree of the Head of LKPP Number 43 of 2017 concerning Development Team for Government Procurement of Goods/Services Procurement Dispute Resolution Services which was basically issued for the purpose of developing the effectiveness of procurement dispute resolution services. Procurement Dispute Resolution Services referred to in the Decree of the Head of LKPP are services provided by LKPP. This study uses a normative juridical research method, namely research which examines theories, concepts, legal principles and legislation related to the settlement of contract disputes for the Government's procurement of goods/services. The results of the study show that the guarantee of legal certainty in the proceedings at the LPS-LKPP on goods/services procurement contract disputes is based on the Government Goods/Services Procurement Policy Agency Regulation No. 18 of 2018 concerning Dispute Resolution Services for Government Procurement of Goods/Services Contracts carried out in a systematic and gradual manner. The Parties must take the path of mediation, conciliation, and then arbitration.

Keywords: Legal Certainty, Contract Disputes, Procurement of Goods/Services.
Vulvar Leiomyoma Mimicking a Bartholin’s Gland Tumour
Authors: Joseph Anju , Dev Minnu , Christopher Usha
Published: February 2023

Bartholin's cyst is frequently the cause of unilateral vulval enlargement in a woman of reproductive age. We discuss a noteworthy occurrence of vulval leiomyoma that was initially misdiagnosed as a recurrent Bartholin's cyst in this article. Intraoperatively, it was observed that the 35-year-old lady who had been scheduled for marsupialization really had a tumour of vulvar or bartholin's gland origin rather than a cyst. It was discovered to be rather hard in consistency and well encapsulated intraoperatively. The vulvar leiomyoma was proven to be the diagnosis by histopathology. Extrauterine leiomyomas are uncommon and more challenging to diagnose. Bartholin's cysts, fibromas, lymphangiomas, soft-tissue sarcomas, and neurogenic tumours are among the differential diagnoses. Following surgery, it is advised that all patients have long-term follow-up.

Keywords: Vulvovaginal leiomyoma, Vaginal wall mass, Benign tumor, Bartholin’s gland, Vulvar mass, Misdiagnosis, Excision, Enucleation, Bartholin’s cyst