bluuebunny/crossref_metadata_2025 huggingface dataset:
Experimental and numerical investigations of the impacts of separating board and anti-blocking mechanism on maize seeding
Authors: Huimin Fang , Mengmeng Niu , Zhengbo Zhu , Qingyi Zhang
Published: April 2022

Maize seeding is greatly affected by improper seed placement and poor planter performance under a no-tillage mechanisation system. To overcome the issue, we explored the impact of separating board and anti-blocking mechanism (0, 1/4, 1/2, 2/3, 3/4, and 1 type) on maize seeding under different forward speeds (3, 5, 7 km/h) and rotational speeds (260, 400, 530, 740 rpm), where the performance metrics included the mass of straw coiled, seeding height, emergence rate, soil mound depth, straw movement, and straw clearance. The study results show that separating board helps to increase forward and side displacements of the straw, which avoids localized accumulation of straw around the antiblocking mechanism. The straw clearance rate of the anti-blocking mechanism with a separating board is greater than that without the separating board. Therefore, the 2/3 type anti-blocking mechanism with a separating board is recommended for maize seeding at a forward speed of 5 km/h and a rotational speed of 400 rpm.
Il dibattito nella bioetica. Comunicazione della verità nel nursing
Authors: Sgreccia Elio
Published: April 2022

Non disponibile
Sviluppo adolescenziale e comportamenti sessuali
Authors: Di Pietro Maria Luisa , Lucattini Adelia
Published: April 2022

Addentrarsi nel mondo degli addolescenti nel tentativo di comprendere il perché delle loro scelte e dei loro comportamenti, in particolar modo sessuali, è impresa alquanto ardua: non vi è infatti nessuna altra fase dello sviluppo umano che sia sì intrisa di contraddittorietà e di provvisorietà come l'adolescenza e quindi difficilmente passibile di schematizzazioni e di soluzioni. Lo scopo di questo lavoro, che si avvale della vasta letteratura esistente in tema di adolescenza, è quello non di schematizzare ma di individuare - anche alla luce degli apporti della psicologia - le ragioni dei comportamenti adolescenziali in campo sessuale (rapporti sessuali, uso della contraccezione, diffusione delle malattie sessualmente trasmesse) perché questa conoscenza sia punto di partenza per l'elaborazione di una mirata strategia educativa della sessualità.
Volontariato e assistenza a pazienti affetti da AIDS. Annotazioni su un gruppo di formazione per volontari
Authors: Fassino S. , Ferrero A. , Marchesi P. L. , Mazzone M.
Published: April 2022

In relazione alle complesse dinamiche psico-sociali in cui i soggetti HIV positivi ed i pazienti di AIDS sono coinvolti, viene segnalata la necessità di un'adeguata preparazione specifica di tutto il personale d'assistenza: ci si sofferma nel caso particolare su quella degli operatori che presentano il loro servizio presso le associazioni del volontariato organizzato. Viene al proposito fatto riferimento ad un corso-pilota della durata di quattro mesi organizzato dalla Caritas di Torino in collaborazione con la II Cattedra di Clinica Psichiatrica dell'Università di Torino e la Società Adleriana Italiana Gruppi e Analisi. Il progetto formativo di questo corso si articola in due momenti distinti. Il primo è costituito dalla possibilità di fornire ai futuri operatori informazioni adeguate, mediante una serie di lezioni sui vari aspetti del problema AIDS. Il secondo momer to formativo si articola nei lavori susseguenti ad ogni lezione, attraverso incontri in piccoli gruppi (10-12 persone) eterocentrati sul compito, che consiste nel dover discutere sui vari aspetti della comunicazione col paziente, sotto la guida di due conduttori, e per la durata di circa un'ora. Si ritiene in sintesi che solo attraverso una partecipazione critica ed almeno sufficientemente consapevole i volontari possano svolgere il difficile compito di stare vicini ai malati di AIDS in una relazione di solidarietà autentica.
SARS-CoV-2 screening among healthcare workers in a local Health Department of North-Western Italy
Authors: Cagnoli Claudia , Contarini Maria Natalia , Bellistri Guglielmo , Cupo Marco , Predebon Ginevra , Giordanino Marco , Vezzaro Francesca , Marincheva Galina , Roletto Adele , Belforte Adriana , Panato Rosetta , Cambursano Sandra Stefania , Russo Francesco , Perrone Flavia , Tomasella Ivan , Manna Erika , Allasia Cinzia , Allocco Alessandra
Published: April 2022

Between October 2020 and December 2020, 1,466 healthcare workers were screened for the presence of Sars-Cov-2 infection in a Local Health Department of the Piedmont region, North-Western Italy, using a Real-Time RT PCR based technique. Mean age was 46.1 ± 11.3 years and female were 77%. We found 234 positive cases (16%): mean age was 45.9 ± 11.1 years and 73% were female. The most common symptoms were cough, hyposmia and ageusia. Asymptomatic subjects were 57%. Our data further underline the importance of an active COVID-19 screening in the healthcare workers population regardless of symptoms or of a clear infection exposure.
Recurrent and refractory lower limbs lymphedema in psoriatic arthritis: a case description and literature review
Authors: Maranini Beatrice , Ciancio Giovanni , Tessari Mirko , Govoni Marcello
Published: April 2022

Lymphedema is an uncommon extra-articular complication of rheumatoid arthritis (RA), but it can also be associated with psoriatic arthritis (PsA), although rarely. While lymphedema associated with RA is well characterized in literature, only few cases have been described among patients with PsA. Upper limbs are the most common sites involved, with asymmetric pattern, even if some patients may present lower limb oedema, or progressive bilateral oedema.

Chronic established lymphoedema deriving from lymphatic vessel dysfunction should be clearly distinct from inflammatory distal pitting edema (IDPE), resulting from tenosynovitis and frequently encountered in PsA. In contrast to lymphedema, the latter condition generally presents an excellent response to steroid therapy, therefore it is essential to recognize the exact etiology of lymphoedema to approach the correct treatment. Here we report a case of lower limbs lymphedema in PsA and review the available literature upon the topic.
Glucose-Lowering Agents and COVID-19
Authors: Khang Ah Reum
Published: April 2022

Coronavirus disease 2019 (COVID-19) is continuing to spread around the world despite the introduction of vaccines. Individuals with diabetes have been reported to have more severe clinical outcomes of COVID-19 infection. As there is potential that glucose-lowering agents can influence the clinical outcomes in diabetic patients with COVID-19, a number of studies are ongoing to explore the differences in clinical outcomes related to glucose-lowering agents. In this article, I summarize the published research on the relationship between glucose-lowering agents and clinical outcomes of diabetic patients with COVID-19 and suggest clinical consideration for usage of glucose-lowering agents.
A Simulation Tool for Calculation of Engine Thermal Boundary Conditions
Authors: Bell David J. , Grimley Peter , Hynous Jan , Gryguc Jeffrey , Shen Cong , Zhang Shasha
Published: April 2022

Reducing emissions and the carbon footprint of our society have become imperatives requiring the automotive industry to adapt and develop technologies to strive for a cleaner sustainable transport system and for sustainable economic prosperity. Electrified hybrid electric vehicles (HEV), plug-in hybrid electric vehicles (PHEV) and range extender powertrains provide potential solutions for reducing emissions, but they present challenges in terms of thermal management. A key requirement for meeting these challenges is accurately to predict the thermal loading and temperatures of an internal combustion engine (ICE) quickly under multiple full-load and part-load conditions.

Computational Fluid Dynamics (CFD) and thermal survey database methods are used to derive thermal loading of the engine structure and are well understood but typically only used at full-load conditions. These methods are limited in terms of computational overhead with CFD and the validity of the database when wishing to look at part-load conditions to build up a thermal map of the engine for transient solutions.

This paper presents a new analytical Finite Element (FE) based tool for calculating thermal boundary conditions of all the components of the power cylinder using physical models and semi-empirical correlations, without the need for CFD analysis, and which overcomes the limitation of database methods which are not predictive. An iterative solution is used that captures all the heat paths in detail and where each solution runs quickly enough to allow different design variants to be assessed for multiple operating conditions. The calculated temperatures and the corresponding deformations can then be used to predict piston secondary motion and ring dynamics and to better predict friction, wear and oil consumption of the power cylinder and the structural durability of the components.

The toolset is applied to a 2.0 liter 4-cylinder Gasoline Turbocharged Direct Injection (GTDI) engine and validated with measurements on the piston, cylinder head and cylinder bore for different full and part-load conditions.
Tribological Behaviour of an Automotive Brake Pad System Under Los Angeles City Traffic Test Conditions
Authors: S Gurumoorthy , Bourgeau Alyssa , Bhumireddy Yugandhar , Allipur Srikanth Reddy , S Sridhar
Published: April 2022

The Los Angeles City Traffic (LACT) brake test is well known acclaimed procedure used by many vehicle manufacturers to assess the brake pad wear behavior and to investigate the Noise, Vibration and Harness (NVH) performance of the brake system. The LACT driving route consists of a set of real-world driving conditions, which has been considered representative of the US passenger vehicle market.

The scope of this study is to mimic the LACT test using finite element analysis (FEA) to calculate the wear displacement based on Rhee’s theory. The Leading-edge and trailing edge of the brake pad’s wear tendency is also predicted from the simulation. The finite element model for wear simulation consists of brake system viz., Rotor, Knuckle, Pads, Anchor bracket, Piston, and Caliper. Various braking scenarios consist of different driving characteristics (Number of brake applications, vehicle speed, brake pressure, rotor temperature, and brake rotor interface friction variation) based on LACT Route traffics are replicated in FEA.

The wear displacement results from the finite element analysis are in good agreement with physical test results. Further, based on the wear displacement values, the brake pad’s life span is calculated and correlated well with the test measurements.
Między Polską Piastów i Polską Jagiellonów a Rzeczpospolitą Obojga Narodów. Refleksje „anarchologiczne” i ich miejsce w rozwoju myśli historycznej Pawła Jasienicy
Authors: Mękarski Artur
Published: April 2022

Between the Piast Poland, Jagiellonian Poland, and The Commonwealth of Both Nations. ‘Anarchological’ Reflections and Their Place in the Development of Paweł Jasienica’s Historical Thought

In March 1962, Paweł Jasienica, known chiefly for his books on the history of Poland, published an article entitled ‘Polska anarchia’ (‘Polish anarchy’). The article, which appeared in the weekly Przegląd Kulturalny, sparked off a heated debate on the sources of the anarchy into which the Polish-Lithuanian Commonwealth began to descend in the latter half of the seventeenth century. Among those who contributed to the debate were some of the leading historians of the day. Encouraged by the response to his article, Jasienica decided to expand it into a full-length book (completed in the spring of 1963).

The author first presents the views expounded in the article from Przegląd Kulturalny, and then he reconstructs the debate and examines how Jasienica referred to it in his work on the anarchy. Since Jasienica’s account of the anarchy covers the period with which he was also concerned in Rzeczpospolita Obojga Narodów (published in English as The Commonwealth of Both Nations) – the third part of his series on the history of Poland for which he is most acclaimed – the author also attempts to compare the interpretations advanced in one work with those advanced in the other.

As regards the anarchy, Jasienica traced its origin back to the reign of the last two kings of the Jagiellonian dynasty . In compliance with their commitment to securing the support of the great magnates on whom they chose to base their power, Sigismund I the Old (1467–1548) and Sigismund II Augustus (1520–1572) refused to endorse political arrangements advocated by the representatives of the Lower House of Parliament. The failure to reform the country along the lines suggested by the latter group led, in the long term, to political chaos. Unlike Jasienica, according to whom the Commonwealth degenerated into anarchy because of the errors committed almost exclusively by the rulers, the academic historians, whose views were inspired by Marxism, linked the state’s political impotence with the policy pursued by the whole nobility as a class. However, as the author shows, in Rzeczpospolita Obojga Narodów Jasienica radically changed his views. In his later work, all responsibility for the future anarchy was shifted onto Sigismund III Vasa (1566–1632) and his Catholic fanaticism. In revising his interpretation of what is known as the nobles’ anarchy, Jasienica drew, at least to some extent, on works by Jarema Maciszewski and Władysław Czapliński, historians who also represented the official historiography of the Polish People’s Republic.
Z czego żył historyk w czasie wojny? Przypadek Stefana Kieniewicza (1939–1945)
Authors: Wolniewicz Marcin
Published: April 2022

How Did a Historian Make Ends Meet during the War? The Case of Stefan Kieniewicz (1939–1945)

The article discusses how the people of science and scholars made their living in occupied Poland (1939–1945). The problem is shown on the example of the wartime fate of an outstanding historian, Stefan Kieniewicz (1907–1992), whose diaries, juxtaposed with a variety of source material (including the materials from the German Archive Office [Archivamt]), allow for a relatively detailed analysis of the topic. The story stemming from these documents shows a survival strategy that seemed an obvious choice for a representative of the landed gentry intelligentsia. It was based on the use of education and family connections. Education allowed Kieniewicz to take up intellectual jobs, which he kept simultaneously in the Treasury Archive (Archiwum Skarbowe, Finanzarchiv) taken over by the Germans and in the apparatus of the Underground State (Information and Propaganda Office of the Home Army Headquarters). It also made him eligible for the support provided to the authors by the Warsaw bookseller, M. Arct. The income from these jobs was usually not enough for Kieniewicz to support his family in Warsaw. Up to a point, the deficit was covered by selling off valuable movable property and giving up the gentry lifestyle. Ultimately, the family used the hospitality of their relatives and moved to the estates in Ruszcza and Topola. The Warsaw Uprising deprived the Kieniewiczs of the remains of their possessions, and the agrarian reform deprived their more affluent relatives of property. These events concluded the transformation of Kieniewicz’s social status into the ‘academic intelligentsia’.
Życie i działalność Ludwika i Heleny Stolarzewiczów na tle życia literackiego i naukowego Łodzi w okresie międzywojennym
Authors: Stawiszyńska Aneta
Published: April 2022

Helena i L udwik Stolarzewiczowie wpisali się niewątpliwie silnie w kulturę naukową Łodzi okresu międzywojennego. Ich działalność na wielu polach zarówno typowo naukowych, jak i społecznych sprawiła, że należeli do najbardziej rozpoznawalnych postaci łódzkiego środowiska humanistów. Prace Stolarzewiczów poświęcone głównie kwestiom literatury spotykały się jednak ze zróżnicowaną oceną — dotyczyło to zwłaszcza poczynań Ludwika. Po latach obydwoje pozostają postaciami nieco zapomnianymi. Przybliżenie dziejów życia i pracy naukowej małżeństwa Stolarzewiczów jest jednak ważnym krokiem do zrozumienia ogółu kultury ówczesnej Łodzi. Istotnym źródłem do poznania dziejów dwojga badaczy jest prasa łódzka tamtych lat, na łamach której często znajdujemy informacje o ich działalności. Wielu cennych informacji dostarczają też publikowane przez nich prace, a także wspomnienia innych literatów łódzkich opisywanej epoki. Life and work of Ludwik and Helena Stolarzewicz in the literary and academic circles in inter-war Łódź Helena and Ludwik Stolarzewicz undoubtedly played an important role in the scientific and cultural life of Łódź in the inter-war period. They were active in many fields — both academic and social — which placed them among the most recognizable figures in the humanist circles in Łódź. The works of the Stolarzewiczs were mainly devoted to literature, but they received Życie i działalność Ludwika i Heleny Stolarzewiczów na tle życia literackiego... 77 mixed reviews — which was particularly true in the case of Ludwik. Nowadays, they have become somewhat forgotten. Describing the life and scientific work of the Stolarzewiczs is nonetheless a major step towards an understanding of the overall culture of Łódź back then. Press articles published in Łódź, which often described the activities of the two scholars, are among the most important sources allowing one to learn their history. Their own published works also provide much valuable information, as do the memoirs of the Łódź writers from the described period.
Archiwum Państwowe w Poznaniu w pierwszych latach po zakończeniu II wojny światowej
Authors: Pera Justyna
Published: April 2022

W artykule zwrócono uwagę na problemy, z którymi borykało się Archiwum Państwowe w Poznaniu bezpośrednio po zakończeniu działań wojennych oraz w pierwszym okresie działalności, tj. do roku 1951. Podstawą źródłową były sprawozdania i plany pracy sporządzane w Archiwum Państwowym w Poznaniu w latach 1945–1951 oraz obowiązujące w tym czasie normatywy, które regulowały działanie instytucji. W publikacji podniesiono problem zabezpieczania i gromadzenia materiałów archiwalnych oraz niedogodności związanych z kompletnym zniszczeniem budynku, a co za tym idzie — brakiem odpowiednich magazynów, które mogłyby zabezpieczyć akta powracające do Archiwum po wojnie oraz nowe, które miały dopiero do niego trafić.

State Archive in Poznań in the first years following the Second World War

The article discusses the problems that the State Archive in Poznań struggled with soon after the termination of military operations and in the first years of its existence, i.e. until 1951. The main sources for this paper include reports and working plans drafted in the State Archive in Poznań in the years 1945–1951, as well as the operating standards regulating the work of this institution. The publication also raises the issue of protecting and gathering archival materials, as well as the difficulties posed by the complete destruction of the building and the resulting lack of appropriate spaces for secure storage of both new records and files, and ones recovered after the war.
Rada Ministrów i premier Józef Cyrankiewicz wobec pogrzebu prof. Raula Koczalskiego (1884–1948) na Cmentarzu Jeżyckim w Poznaniu 29 listopada 1948 r.
Authors: Kijowski Maciej
Published: April 2022

Przedmiotem artykułu jest przejęcie przez państwo — uchwałą Rady Ministrów z 29 grudnia 1948 r. — kosztów pogrzebu zmarłego i pochowanego w Poznaniu odpowiednio 24 i 29 listopada 1948 r. wybitnego pianisty prof. Raula Koczalskiego. Autor upatruje w decyzji rządu, a w szczególności premiera Józefa Cyrankiewicza, dowód ostatecznego odcięcia się państwa od nieuzasadnionych a stawianych artyście tuż po II wojnie światowej zarzutów kolaboracji z hitlerowskimi zbrodniarzami. Autor odnosi się do ostatnich osiągnięć artystycznych Koczalskiego, porównuje też koszty jego pogrzebu i czas oczekiwania na ich refundację z innymi państwowymi pochówkami w latach 1947–1948. Komentuje także stanowione w latach 1954, 1960 i 1990 akty prawne składające kompetencję do decydowania o finansowaniu pogrzebów osób zasłużonych początkowo w gestię Prezydium Rządu, a następnie premiera.

The actions of the Council of Ministers and prime minister Józef Cyrankiewicz related to the funeral of Professor Raul Koczalski (1884–1948) at the Jeżyce Cemetery on November 29, 1948 in Poznań

In the resolution of the Council of Ministers of December 29, 1948, the State undertook to finance the funeral of an exceptional pianist, Professor Raul Koczalski, who died on November 24 and was buried on November 29 in Poznań. This decision is the subject of this article. For the author, this decision of the government, and in particular — of prime minister Józef Cyrankiewicz — is the ultimate proof that the state dismissed the unsubstantiated accusations that appeared after the Second World War concerning the alleged collaboration between the artist and Nazi war criminals. The author discusses the final artistic achievements of Koczalski, and compares the cost of his funeral and the time in which it was reimbursed with other state-organized funerals in the years 1947–1948. He also comments on the legal acts adopted in the years 1954, 1960, and 1990, in which the power to make decisions regarding the financing of funerals of distinguished individuals was passed first to the top ministers, and then the Prime Minister personally.
Nieznośna ciężkość resentymentu. Analiza bazy narracyjnej Zmierzchu demokracji Anne Applebaum
Authors: Zarzycki Roland
Published: April 2022

The unbearable heaviness of resentment. Analysis of the narrative base of Anne Applebaum's Twilight of Democracy

Twilight of Democracy by Anne Applebaum is a unique book for at least two reasons. Firstly, thanks to the artistry of synthesis, the narrative structure used by the author perfectly exhibits the ideological core of the contemporary discourse of (neo)liberal opposition. At the same time, thanks to her eristic talent, the very persuasive load of the text is worth recognition and in-depth insight. This publication aims to reconstruct the narrative base of the Twilight of Democracy and to reveal its persuasive apparatus. Then this case study is used to identify the more widely functioning ideological patterns associated with political actions, which are based on resentment, bitterness and the longing of (neo)liberals who were left out of power.

Abstrakt

Zmierzch demokracji Anne Applebaum to książka wyjątkowa z co najmniej dwóch powodów. Po pierwsze, dzięki kunsztowi syntezy, struktura narracyjna wykorzystana przez Autorkę doskonale ukazuje ideologiczny rdzeń współczesnego dyskursu (neo)liberalnej opozycji. Zarazem dzięki jej talentowi erystycznemu, sam ładunek perswazyjny tekstu wart jest uznania i pogłębionego wglądu. Niniejsza publikacja stawia sobie za cel rekonstrukcję bazy narracyjnej Zmierzchu demokracji oraz ekspozycję jej aparatu perswazyjnego. Następnie owo studium przypadku wykorzystane zostaje do rozpoznania szerzej funkcjonujących schematów ideologicznych towarzyszących działaniom politycznym, u którego podłoża spoczywa resentyment, gorycz i tęsknota odsuniętych od władzy (neo)liberałów.
Sobre la nueva reforma de la educación matemática: Invitación a un debate, 1
Authors: Mena Lorca Arturo
Published: April 2022

Hacia 1960, comenzó un proceso de reforma de las matemáticas escolares en gran parte del globo. Chile, como otros países, no estaba preparado para ella. Hoy, las primeras olas de una nueva, inexorable, más amplia y profunda reforma ya están llegando. No es obvio que ahora estemos mejor apercibidos: se ha avanzado en todas las áreas concernidas, pero algunas ideas substantivas, incuestionables, de la reforma anterior, no fueron incorporadas según se pretendía. Mientras en otros lugares, que están determinando el rumbo de los acontecimientos futuros, ya están mirando en una dirección diferente, nuestra nación no ha terminado de ponerse de acuerdo en temas fundamentales. Se necesita aquilatar la situación, para apercibirse, precaverse y enfrentar la nueva situación. En este escrito, intentaremos: reunir algunos aspectos del currículo escolar; situar en perspectiva nuestra tarea como responsables, cada uno en lo suyo, de los aprendizajes de matemáticas del país, y aquilatar los resultados que se están obteniendo; describir el escenario de la reforma educacional anterior, sus causas, su realidad en Chile; reseñar inferencias que se deben hacer y precauciones que hay que tomar; examinar nuestro presente en esta materia; explicitar la nueva reforma, y reunir todo ello en una mirada de largo aliento.
Actitudes y rasgos psicológicos del entrenador universitario en los deportes de conjunto
Authors: Gavotto Nogales Omar , Encinas Trujillo Manuel , Vega Orozco Saúl
Published: April 2022

El estudio tiene el propósito de describir actitudes del entrenador deportivo a partir de las creencias de los jugadores y entrenadores de los equipos representativos de la Universidad de Sonora. La investigación responde a un estudio descriptivo transversal, no experimental con enfoque cuantitativo. Las actitudes del entrenador en los deportes de conjunto que confirmaron tanto entrenadores como jugadores incluyen los siguientes rasgos: es disciplinado y perseverante; es un ejemplo de bienestar y vida saludable; actitud ganadora; cuida la salud mental de mis jugadores; presiona hasta el límite a mis jugadores; utiliza frases optimistas para motivar; realiza charlas emotivas; establece metas y pronósticos realistas; realiza ejercicios de visualización para que sus jugadores entrenen mentalmente; se comunica de manera clara y directa, pero sin ofender a mis jugadores; es empático con las necesidades de los jugadores; se enfoca en lo que ocurre en el juego y trabaja colaborativamente.
Design, Modification and Comparative Study of a Solar Still to Enhance Its Efficiency by Using External Active Element
Authors: Bidwaik Akash S. , Pasi Bhaveshkumar N. , Shaikh Sameer B.
Published: April 2022

This work shows a modified design of solar still with magnifier, which is placed at the top of the inclined glass. The evaporation rate of water was increased by increasing the base temperature with the help of a magnifier. The desalination process on the modified solar still was carried in Mumbai (19.0760° N, 72.8777°E) India. Different variables were measured on an approximately hourly basis. Increase in the output of modified still was found to be 43.67 % when compared with the simple still with 0.27m2 area.
Design of Coconut De-Husker, Cutter and Grater Machine
Authors: Bhatia Anmol , Arora Abheek , Arora Nischay , Manchanda Vaibhav
Published: April 2022

The paper aims to present the design of a multipurpose machine that can do three operations namely dehusking, cutting and grating the coconut. In order to dehusk the coconut, the procedure is to have the coconut fixed between the toothed shaft containing spikes and incorporate the opposite movement to it. After the removal of the husk, coconut is removed out which is then sent for the cutting process, which has the provision of punch also, if the coconut water is desirable. The final process is the grating of the coconut with the help grating tool which has notches on its periphery. The model would be beneficial for the industries where the raw material is coconut.
Design of Multipurpose Wood Working Machine
Authors: Bhatia Anmol , Jatwani Anmol , Nalwa Arpit
Published: April 2022

This paper aims to present a model of a machine that can perform multiple operations on wood which is efficient and reliable than machines that already exist. The paper can help the common man, the daily worker, the carpenter that toils away by providing him with a tool at his disposal that can save his time, money and labor. The multipurpose wood working machine is unique in the manner that it utilizes a single multi-point tool to conduct all its operations and is operated by a single motor to save energy. The multipoint tool not only replaces multiple other tools but also saves energy by utilizing a single motor as compared to multiple motors which would be required if there were multiple tools. This also decreases the area the machine will take up making it more portable and lighter. By utilizing a single tool, there is an increase in the safety of the machine, as multiple tools mean multiple hazards. The tool will function in a manner similar to a routing machine. It is fixed in a module which holds it perpendicular to the vice which will be holding the work piece. The tool can transverse in all three directions using sleeves which are wrapped around threaded rods. Actuator motors then inhibit motion in all 3 dimensions using a control board. By doing so, the multipoint tool can work to its full potential and perform various multiple operations such as cutting, planning, drilling and slotting.
A Study of Aircraft Damage Accidents and Safety Culture in the Ground Services in an Airlines Company
Authors: Aljehani Ahmad Hamad , Zytoon Mohamed A.
Published: April 2022

The performance of the airline industry is highly affected by ground services operations. For instance, a failure in one ground operation activity could result in the poor on-time performance of the airline's companies. The objective of the current study is to analyze the causes of ground operations accidents that resulted in aircraft damages in an airlines company in Saudi Arabia. Furthermore, the safety culture of the ground operators was assessed. The number of accidents during the period 2016-2019 was found high. The main causes were unsafe operator act and unsafe supervision. Also, the safety culture questionnaire revealed that other causes had a role in developing unsafe acts, such as organizational aspects. The study recommends improving many organizational aspects such as properly designed procedures, roles and responsibilities, training, communication and reporting system, equipment maintenance schedule, field inspections, strict and supportive supervision, as well as fair workload and compensation. Improving these aspects should reflect on the safety culture and behaviour of operators and immediate supervisors. The result is reduced aircraft damage accidents and on-time performance improvement.
Developing the Performance of Business Incubators to Increase the Percentage of the Contribution of SMEs in the Saudi GDP to Achieve Vision 2030
Authors: Aljuhani Faisal , Balubaid Mohammed
Published: April 2022

Recently, Small 8 Medium Enterprises (SMEs) have been an important pillar for the growth and revitalization of the economy. However, the small business failure rate is larger than the rate of establishment. Business incubators (BIs) have been structured to support new ventures in order to raise the chance of success. This paper aims to discuss the impact of BIs on the performance of entrepreneurs and the national economy through forecasting the contribution of SMEs and private sectors in the Saudi Gross domestic product (GDP) in 2030 based on the data of General Authority of Statistics in Saudi Arabia from 2016 to 2019. Vision 2030 includes the specific targets that the government will establish more effective BIs to increase the contribution of SMEs in the total GDP from 20% to become 35 percent and increase the contribution of private sectors from 40% to 65%. It argues that although the forecasting contribution of SMEs and the private sector in the total Saudi GDP can surpass the targets of Vision 2030 by 39% and 67% respectively, the contribution of BIs in these goals is insignificant according to studies published in Saudi Arabia but it suggests that BIs may have a positive impact on the national economy in terms of increasing the number of jobs and GDP.
Investigating the Effect of Cutting Parameters on Surface Roughness and Flank Wear in the Interrupted Hard Turning of Hardened SKD 11 Steel using High CBN Inserts
Authors: Hoang Vi , Ngo Minh Tuan , Do Quang Minh
Published: April 2022

Hard turning is a potential machining process to replace for grinding process due to large advantages such as material removal rate, good surface integrity, and friendly environment. This process is also used to process discontinuous surface parts. This study focuses on analyzing the effect of cutting parameters on surface roughness and flank wear after interrupted hard turning of SKD11 steel using CBN inserts. The effect of cutting parameters and interacted between them on the surface roughness and the flank wear were analyzed by using the full factorial design having the central trials. The results investigated that the feed rate is the most significant parameter affecting on the surface roughness in the machining process and the cutting speed strongly affects on the flank wear in the interrupted hard turning of SKD11 steel using high CBN inserts. The results of ANOVA analysis for the surface roughness and the flank wear indicated that the need to investigate and use the curve model to describe the effect of the cutting parameters on the surface roughness and the flank wear.
Study 8#x38; Analysis of The Most Influential Event and Risk in The Workplace Environment at King Abdul-Aziz International Airport
Authors: Al-Muallem Hani Ahmed , Zytoon Mohamed A.
Published: April 2022

The Safe operation of an airport is an important part of aviation safety. During this study for quality services provided purpose, we will Review types of ground accidents and events that happen at the land side of King Abdul-Aziz Airport (KAIA) during work in the site. The focus of this study will be on KAIA as this airport is an integral part of the world's international airports. We will study the root cause of the ground accidents in the field which is affected by many factors such environment, human, constructions and aircraft features etc.., we will use the (Fishbone) analysis to determine the root cause effects of that incidents and the suggested safety solutions to eliminate the risks in the workplace and reducing hidden and visible costs.
Long Term Electricity Demand Forecasting for Saudi Arabia
Authors: Ramzi Fares , Alidrisi Mustafa
Published: April 2022

This research is about electricity demand forecasting in Saudi Arabia till the year 2025. The data on demand were collected from King Abdullah Petroleum Studies and Research Center, for the four regions in Saudi Arabia namely, western, central, eastern, and southern regions. The data pattern for the regions were studied and all showed monthly seasonality with slight variations. After that three forecasting methods were applied starting with the time series decomposition method with a multiplicative model, The Box-Jenkins methodology (ARIMA) and Winter’s triple smoothing method to find the forecast of electricity demand for each region. Then, those forecasts were combined to obtain the total demand of electricity for Saudi Arabia. The forecast for the 96 months from Jan. 2018 until Dec. 2025 were obtained which showed that the demand will continue to grow for all regions with a peak at the summer season. An analysis of electricity demand factors was also studied using fishbone and regression analysis to identify the most important factors affecting electricity demand in Saudi Arabia, which were found to be: populations, number of subscribers, number of factories, CO2 emissions, and air temperature. Comparison of the forecasting errors measurements indicates that, in general , the time series decomposition method is the best model, however, a combined model was also generated to optimize accuracy, which shows that peak demand in August 2025 will be 63.30115 GW.
Forecasting The Number of International Muslims Umrah Visitors in Makkah to 2030
Authors: Alamoudi Ahmad , Abed Seraj
Published: April 2022

This study was conducted to support the Saudi Vision 2030 to move beyond oil dependency by diversifying the sources of its income by increasing the tourists demand in the Kingdom, especially religious tourism which provides more money flowing continuously in the economy depending on its strategic location at the center of the world. This study aims to forecast the annual number of International Umrah visitors to Makkah from the period of 2020 to 2030, to achieve the 2030 Saudi Vision of serving 30 million visitors in 2030. Historical data of international Umrah visitors were collected for the past 33 years on an annual basis. This univariate time series of the annual number of international Umrah visitor has been studied and forecasted to predict the annual number of Umrah visitors for the next 11 years. Different forecasting techniques were used to identify the best technique among them to forecast the future demand. The best technique among those used in the study was ARIMA (2, 2, 2) model as best fitted model with the least residual measures of 9% MAPE. The results of the study indicate that annual number of international Umrah visitors will increase from 7.6 million in 2020 to 12.3 million in 2030. Annual increment percentage decreased from 11% in the historical data to 5% in the forecasted data affected by recent year’s growth due to the variability of issuing Umrah visas before 2030 vision’s announcement. It is clearly shown based on historical data and recent growth in Umrah visitors the 30 million visitors’ goal in 2030 will not be achieved. To achieve the set goal of international Umrah visitors by 2030 the Saudi government would need to increase the growth rate of issuing Umrah visa with an average of 12% approximately. In addition, lots of actions to attract more Umrah visitors such as aggressive marketing campaign, improve its housing 8 hospitality facilities, increase the capacity of its utility systems, and expand the overall infrastructure in the Holy places.
Jeddah City Ride-hailing Company Bus Routes Planning by Using Traffic Neural Network Design
Authors: Najem Waleed N. , Alqahtani Ammar Y.
Published: April 2022

This study aims to discover the relationship between neural systems and their use and nature in optimizing public transportation in real life. As neural networking system in the human body represents a smooth delivery and reception of data between the neural joints, in similarity to public transportation delivering public to multiple points/zones. Today's simulation systems depend on simulating real life to help us find an optimized solution but never the ultimate optimization. Applying an intelligent design like the human neural system into real life will deliver an ultimate solution to such a problem. Applying a neural networking system to Jeddah's traffic platform allowed us to reach an optimized map/network for the public transportation services with clear stations/stops numbers and real-life path/lane to be followed.
Psychology Approach: Through AI, ML and DL
Authors: Sharma Pranav , Jain Divya , Dhull Anuradha
Published: April 2022

Human brain is more complex than any other known structure in the universe. Millions and trillions of information like the memories are stored, habits learned, and personalities are shaped in it. To know how all this work and to know how mind basically respond on certain events, Psychology came in action. Most of the work in this field is based upon the history and impressions while major treatment is done using guess work, even the best psychiatrists choose the correct treatment for a given patient only about 37% which we ultimately want to improve. So, this paper presents the major connection between computer science and psychology and how machine learning can change the overall approach and methods in the treatment of mental health and in the understanding of psychology.
An empirical performance analysis for on road object detection from Traffic videos: An image pre-processing perspective
Authors: Garg Shubham , Pandey Saurabh , Kaushal Sarthak , Dhull Anuradha , Gigras Yogita
Published: April 2022

This paper presents an empirical performance analysis of various object detection algorithms for the identification of on road objects from the perspective of different pre-processing techniques. The analysis is done on some real time traffic videos data captured from CCTV camera. The preprocessing techniques considered for analysis are background subtraction, denoising and smoothing methods. For background subtraction, two popular algorithms named Temporal Median Filtering and Canny Edge Detection are being utilized. The Temporal Median Filtering outputs the mask of the objects of interest by eliminating the background and Canny Edge Detection draws the outline of the objects of interest. Gaussian Blur technique is used for image smoothing and noise removal from traffic video. These transformations are applied on test videos of on road vehicle traffic collected manually and the results are obtained using state of the art methods. Apart from this analysis, a new trainingtesting model for quality object detection under different light conditions (day light, night and low vision) have also been proposed. The main idea here is to feed the detectors with images having less but meaningful features like object boundaries. This paper also presents a comparative analysis on state-of-the-art object detection algorithms such as YOLO and Mask-RCNN using transfer learning concept. Moreover, this paper also compares the performance of a segmentation model when fed with the data labelled with bounding boxes instead of the pixel level segmentation.
Scenario Based Testing of Automated Driving Systems: A Literature Survey
Authors:   University of Technology Graz, AUSTRIA, Nalic Demin , Mihalj Tomislav , Eichberger Arno ,   TU Dresden, GERMANY, Bäumler Maximilian , Lehmann Matthias
Published: April 2022

Scenario based methods for testing and validation of automated driving systems in virtual test environments are gaining importance and becoming an important component for verification and validation processes of automated driving systems. The high system complexity of such systems and the high testing costs lead to an exponential increase of test efforts for real world testing. Recent research works have shown that it is necessary to drive and test billions of kilometers to ensure the safety and reliability of automated driving systems. This amount of test kilometers is far from possible and achievable for any test procedure regarding the time and costs. Using different methods and procedures it is possible to reduce the number of scenarios, which should be tested to approve the safety and reliability of automated driving systems. The scenario space consisting of critical and non-critical scenarios and the test effort can be reduced to an infinite and comprehensible amount of relevant scenarios for the system under test. Using scenario and simulation based approaches this effort can be efficiently reduced concerning the costs and time. The biggest challenges hereby are the detection and selection of a suitable scenarios and simulation environments or platforms for the system under test. Besides, suitable safety metrics are essential for the detection, evaluation, and reduction of relevant scenarios for testing of automated driving systems. Current scientific work offers various strategies and approaches for generating relevant scenarios for automated driving systems. All of them have their advantages and disadvantages related to the used virtual environment, vehicle model, traffic model, and the integration complexity. This paper presents a survey through different approaches, methods, and safety metrics for scenario generation and evaluation for testing and validation of automated driving systems. The reader should get a state of the art overview on scenario based approaches of automated driving systems.
ЗАМОНАВИЙ ТАЪЛИМ ТИЗИМИ ВА БУГУНГИ КУНДА ЛУҒАТЛАРНИНГ ЎРНИ
Authors: Ф.Б. Ахрарова
Published: April 2022

As it turned out, the word “dictionary” has two meanings. Lexicography deals with the compilation of such dictionaries. Lexicography comes from the Greek words lexikos-vocabulary, grapho-writing, a science that deals with theory and practice of compiling a dictionary. The task of lexicography also includes the development of technology for compiling dictionaries.
ИНТЕНСИВ БОҒДОРЧИЛИКДА ГИЛОС ГУЛЛАРИНИ АСАЛАРИЛАР БИЛАН ЧАНГЛАТИЛГАНДА, УНИНГ МЕВАСИ ТАРКИБИДАГИ ҚАНД МИҚДОРИ ВА КИСЛОТАЛИК ДАРАЖАСИГА ТАЪСИРИ
Authors: Ахмедов Тўлқин Пардаивич, Тўраев Омон Сафарович
Published: April 2022

The article describes such indicators as the quality of cherry fruits when pollinated by bees in conditions of intensive gardening, as well as the effect of temperature on cherry fruits.
THE ROLE OF PULSE OXIMETRY IN THE EARLY DETECTION OF CONGENITAL HEART DISEASE IN NEONATES BEFORE HOSPITAL DISCHARGE
Authors: Dehvari Abdollah , Noori Noor Mohammad , Boryri Tahereh , Davoudi Fatemeh , Teimouri Alireza
Published: April 2022

Objectives: Infant screening for congenital heart disease (CHD) includes a straightforward bedside test called pulse oximetry. Low degrees of oxygen in the blood can be an indication of a critical CHD. The aim of the present study was to evaluate the role of pulse oximetry in the early detection of asymptomatic CHD in new borns before discharge from Hospital.
Methodology: This cross-sectional study conducted on 3151 term neonates first stage of SPO2 was performed 2-12 hours after birth. If SPO2 was < 95%, premeasured within the first 12 to 24 hours of life.  If the neonates maintained their SPO2 <95, they shifted to pediatric cardiologist for echocardiography. For the statistical analyses, SPSS 18.0 (SPSS Inc., Chicago, IL) was used. The significant level considered less than 0.05.
Results: From 3151 neonates, 29 individuals had SPO2<95% in which 26 went under echocardiography and 3 missed. In these neonates 22 had CHD. The SPO2 had a diagnostic value of 85%. Maternal age and neonates’ height at birth not changed based on healthy status and SPO2 levels. Gestational age had no association with healthy status and SPO2 levels, when maternal Diseases and weight at birth had a significant association with SPO2 levels at the second stage and health status.
Conclusion: From the present study concluded that a high and acceptable diagnostic value of 85% found for SPO2 to detect CHD in neonates in the first 24 hours of life.  The factors of maternal diseases and weight at birth had a significant effect in this issue.
MALIGNANT MULTI-VESSEL CORONARY ARTERY SPASM; A RARE CAUSE OF MYOCARDIAL INFARCTION LEADING TO CARDIOGENIC SHOCK – A CASE REPORT
Authors: Shah Jehangir Ali , Ali Nasir , Solangi Bashir Ahmed , Khan Kamran Ahmed , Kumar Rajesh , Saghir Tahir
Published: April 2022

Malignant multi-vessel coronary vasospasm is a rare life threatening condition, presentation like myocardial infarction (MI), arrhythmias, and cardiogenic shock (CS). We report a case of IWMI complicated by CS, angiogram shows diffuse multi-vessel coronary artery spasm. Intracoronary nitroglycerine showing improving spasm in culprit vessel RCA and distal RCA stented with excellent result. This case of early diagnosis of coronary artery spasm to prevent the occurrence of MI, arrhythmias and sudden cardiac death as it is one the rare cause. It also highlighted the role of intracoronary nitroglycerine in relieving diffuse multi-vessel vasospasm in hemodynamically unstable patient.