bluuebunny/crossref_metadata_2025 huggingface dataset:
La forza vitale di un’idea: l’Impero insegnato allo Studium di Padova nel primo Quattrocento
Authors: Rando Daniela
Published: May 2022

Il saggio propone di considerare gli Studia medievali come spazi di comunicazione politica, e quindi di esaminare se e come in essi si parlasse di impero nella prima metà del Quattrocento. Si presentano pertanto alcuni punti cruciali dell’insegnamento di tre docenti di diritto civile e canonico presso lo Studium di Padova, Raffaele Fulgosio, Francesco Zabarella e Antonio Roselli, impegnati non solo sulla cattedra, ma anche nella vita pubblica e in particolare ai concili di Costanza e Basilea. Sulla base di scritti tipologicamente diversi – commentari, consilia e recollecta universitari – vengono enucleate informazioni e interpretazioni relative ai poteri dell’imperatore eletto ma non ancora incoronato, al sovrano come dominus mundi e all’universalità delle sue leggi, all’obbligo per i pontefici di rispettarne i diritti temporali. I recollecta di uno studente di Roselli, Johannes Hinderbach, e una collettanea del suo collega di studi Johannes Heller permettono di cogliere l’interesse che tali questioni poterono suscitare fra studenti destinati a svolgere ruoli di rilievo alla corte imperiale e nelle chiese. La ricchezza dei dati raccolti e la vivacità dell’interesse riscosso fra il pubblico studentesco porta a concludere che il “discorso sull’impero”, se considerato in una prospettiva più ampia rispetto alla tradizionale storia delle idee, mantenne intatta la sua vitalità e attualità nel milieu universitario dell’Italia quattrocentesca.
Pro duobus magnis luminaribus mundi
Authors: Proske Veronika
Published: May 2022

Die persönliche Begegnung von Papst und Kaiser war im Verlauf des gesamten Mittelalters ein außerordentlicher Staatsakt, der in der Folge auch besondere Aufmerksamkeit in der Forschung fand. Die Kaiserkrönung Sigismunds von Luxemburg und der mehrwöchige Aufenthalt des Herrschers in Rom wurden bisher aber nur einseitig auf die Entfaltung und Behauptung von kaiserlicher Macht in der Ewigen Stadt untersucht. Im Zentrum der folgenden Ausführungen steht die Analyse der Begegnung von Kirchen- und Reichsoberhaupt aus einer multilateralen Perspektive. Adventus und Kaiserkrönung in Rom 1433 werden aus Sicht der Protagonisten sowie der beteiligten oder die Ereignisse rezipierenden Zeitzeugen rekonstruiert, wobei besonders die zeitgenössische humanistische Elite im Vordergrund steht. Ihre Texte anlässlich des Papst-Kaiser-Treffens lassen die Interessen und die Funktionen der neuen Bildungsbewegung evident werden.
Federico III d’Asburgo in Italia tra politica e retorica
Authors: Pallotti Riccardo
Published: May 2022

Il contributo si propone di fornire nuovi spunti d’indagine sulle relazioni tra l’imperatore Federico III d’Asburgo e gli stati italiani attraverso un censimento delle orazioni dedicate al sovrano nel contesto delle sue Romreisen (1451-1452 e 1468-1469). Partendo da una breve disamina del quadro storico-politico, il lavoro offre una panoramica storiografica relativa alla figura di Federico III e al suo rapporto con l’Italia. L’indagine si concentra poi sui discorsi degli oratori italiani, i cui esemplari manoscritti vengono descritti in appendice. Oggetto di analisi specifica sono i discorsi degli oratori veneziani riferiti al Romzug del 1452, in particolare l’orazione di Bernardo Giustinian. Esortando l’imperatore alla crociata contro i turchi, questi discorsi testimoniano la riaffermazione, negli ambienti della cultura, di un’ideologia universalistica dell’Impero in risposta alla minaccia ottomana. I testi esaminati riflettono inoltre i legami politici e diplomatici che l’imperatore instaurò con importanti stati italiani, smentendo in parte l’immagine fornitaci dalla vulgata storiografica.
Kaiser und Kaiserreich in spätmittelalterlichen Universalchroniken
Authors: Mierau Heike Johanna
Published: May 2022

Chroniken vom Typ der Papst-Kaiser-Geschichte haben das spätmittelalterliche Geschichtswissen ebenso wie das Geschichtsbewusstsein in Italien wesentlich bestimmt. An der Vielzahl der erhaltenen, in Italien hergestellten Abschriften ist unschwer zu erkennen, dass die Welt- und Heilsgeschichte des sechsten Weltalters das Kaisertum als weiter bestehende Universalgewalt in das Bewusstsein der Zeitgenossen eingeschrieben hat. Im 14. und 15. Jahrhundert wurden etliche Aktualisierungen vorgenommen, die einerseits die Bearbeitung der Basischroniken zeigen und sich andererseits in Fortsetzungen manifestieren. Dabei wurde der Kaisergeschichte weit mehr Aufmerksamkeit geschenkt, als in der Forschung bislang deutlich geworden ist. Erkennbar werden die regionalen und sozialen Kontexte einer auf das Kaisertum konzentrierten Erinnerung. Insbesondere die Fortsetzungen, die Geschichte bis in die eigene Zeit als Zeitgeschichte dokumentieren, sind als aktive Gestaltung der lebendigen Kaisertradition für die Zukunft zu verstehen.
The fortune of imperial history
Authors: Huijbers Anne
Published: May 2022

According to traditional handbooks, all forms of imperial historiography were in decline in late-medieval Italy. As a consequence, imperial histories by Italian authors in this period have often been overlooked. Both in the vernacular and in Latin, Italians produced texts that presented the Holy Roman Emperors in one continuous line with their ancient predecessors. This contribution focuses on two Latin examples by fourteenth-century authors known as proto-humanists: Giovanni Mansionario’s Ystorie imperiales and Benvenuto da Imola’s Libellus augustalis. It shows, first, how these authors professionalised the genre of imperial history by building on ancient sources, and, second, how their histories legitimized the imperial ambitions of the Holy Roman Emperors in the Italian peninsula. Whereas Mansionario’s monumental work survives in three manuscripts only, Benvenuto’s short handbook of imperial lives had a considerable success in the fifteenth century and beyond: It survives in more than 100 manuscripts, several early editions, and was regularly attributed to Francesco Petrarch.
Totus ero talis… tibi qualis eris
Authors: Modonutti Rino
Published: May 2022

Il saggio analizza il rapporto di Albertino Mussato (1261-1329) con l’imperatore Enrico VII e con sua moglie, Margherita di Brabante, attraverso la lettura delle opere letterarie del Mussato in prosa e in versi (De gestis Henrici VII Cesaris; De gestis Italicorum post Henricum VII Cesarem; Epistole; Carmina). A partire dal suo viaggio a Roma e anche dopo la sua morte, l’imperatore giocò un ruolo fondamentale come motore della scrittura letteraria di Albertino e per la sua auto-percezione sia come storico che come poeta.
Ludwig IV of Bavaria through humanist eyes, c. 1314-c. 1453
Authors: Lee Alexander
Published: May 2022

Ludwig IV of Bavaria (r. 1314-1347) left a deep and abiding impression on the Italian humanists. From shortly after his election as king of the Romans, until more than a century after his death, he haunted their writings, both in poetry and prose. Yet this rich vein of evidence has nevertheless been poorly served by scholarship. With a few notable exceptions, little attention has been paid to humanistic perceptions of his reign; and no effort at all has been made to assess their development over time. This paper aims to rectify this omission. Retracing the course of humanistic attitudes from c. 1314 to the completion of Flavio Biondo’s Historiarum ab inclinatione Romanorum imperii decades in 1453, it will argue that Ludwig’s image underwent considerable – even dramatic – change. Far from being uniformly negative, views of his reign evolved in step with the humanists’ shifting political circumstances, and, more importantly, with their conception of the Holy Roman Empire. In reconstructing this transformation, this paper will hence illustrate not only the range of readings which “the Bavarian” could support, but also the extent to which this most controversial of emperors can serve as a valuable barometer of the humanists’ imperial attitudes.
Gender differences in the association between multimorbidity and depression in older Korean adults: an analysis of data from the National Survey of Older Koreans (2011-2017)
Authors: Hwang SeoYeon , Nam Jin Young , Ahn Jeong Hyun , Park Soojin
Published: May 2022

OBJECTIVES: Previous studies have shown that people with multimorbidity have a higher risk of depression than those without multimorbidity. However, few studies have examined the association between depression and multimorbidity in men and women separately. Since the rates of depression and multimorbidity are different in men and women, it is necessary to examine whether gender differences affect their association.METHODS: This study included 30,138 participants (aged ≥ 65 years) from the National Survey of Older Koreans (2011-2017). Depression was defined using the Korean version of the Geriatric Depression Scale (SGDS-K). Multimorbidity was defined as people who had 2 or more chronic diseases, including arthritis, diabetes, heart disease, hypertension, pulmonary disease, cancer, stroke, or osteoporosis. Multiple logistic regression analysis was performed to determine the association between depression and multimorbidity.RESULTS: In total, 22.2% and 30.7% of men and women, respectively, had depression. Those with multimorbidity had a higher risk of depression than those without chronic conditions; specifically, the difference in risk among men was greater than that among women. Age was considered a moderator for women. While the effects of pulmonary disease, stroke, and cancer were especially substantial in the integrated analysis, gender differences were observed related to various chronic conditions comorbid with heart disease.CONCLUSIONS: There are gender differences in the association between multimorbidity and depression among older Korean adults. Therefore, gender-specific care should be provided to reduce depression in older adults with multimorbidity.
Yoğun Bakım Hemşirelerin İzolasyon Önlemlerine Uyumu ve İlişkili Faktörlerin İncelenmesi
Authors: ASKEROĞLU Araz , BALKAYA Fatmanur , TERCAN Figen
Published: May 2022

Amaç: Çalışmada yoğun bakım hemşirelerinin nozokomiyal enfeksiyonların önlenmesine ilişkin izolasyon yöntemlerine uyumları ve ilişkili faktörlerin incelenmesi amaçlanmıştır.Yöntem: Tanımlayıcı bir çalışma olarak Ege ve Marmara Bölgelerinde bulunan bir devlet ve iki sağlık uygulama ve araştırma hastanelerin cerrahi yoğun bakım ünitelerinde gerçekleştirilmiştir. Çalışmaya toplam 103 hemşire dahil edilmiştir. Verilerin toplanmasında yoğun bakım ünitelerinde yüz yüze görüşme tekniği kullanılmıştır. Verilerin toplanmasında geliştirilen ‘Sosyodemografik Bilgi Formu’ ve ‘İzolasyon Önlemlerine Uyum Ölçeği’ kullanılmıştır. Bulgular: Çalışmada hemşirelerin İzolasyon Önlemlerine Uyum Ölçeği puan ortalaması 77.72±9.12 bulunmuştur. Ölçeğin alt boyutları olan bulaşma yolu, çalışan ve hasta güvenliği, çevre kontrolü ve el hijyeni-eldiven kullanımı puan ortalamaları sırası ile 21.93±2.61, 25.66±3.60, 17.04±2.38 ve 13.07±2.60 bulunmuştur. Kadın, lisans üstü eğitim, 25-30 yaş arası, bir yıldan az deneyimi olan, haftada 40 saatten az çalışan ve dört hastaya bakım veren hemşirelerde izolasyon önlemleri uyum puan ortalamaları diğerlerine göre yüksek bulunmasına rağmen istatistiksel olarak anlamlı fark bulunmamıştır (p˃0.05). Kadın hemşirelerde çalışan ve hasta güvenliği puan ortalaması erkeklere göre istatistiksel olarak anlamlı düzeyde yüksek bulunmuştur (p˂0.05).Sonuç: Çalışmamızda hemşirelerin izolasyon önlemlerine uyumları yüksek bulunmuştur. Kurumların hemşirelere ilişkin haftalık çalışma saatlerinin azaltılması ve lisans üstü eğitimi desteklemeleri ayrıca hasta bakımı ve tedavisine ilişkin izolasyon önlemlerine ilişkin hizmet içi eğitimin önemli olduğu düşünülmektedir.
Meme Kanserli Hastalarda Risk Faktörlerinin Belirlenmesi
Authors: TUNA Arzu , VURAL Gülşen , KARAASLAN Ebru
Published: May 2022

Amaç: Bu araştırma meme kanseri tanısı almış olan kadınlarda değiştirilebilir ve değiştirilemez risk faktörlerini ve olumlu/olumsuz sağlık davranışlarını belirlemek amacıyla yapılmıştır.Yöntem: Araştırma 2017 Haziran- 2018 Ekim aralığında tanımlayıcı bir araştırma olarak yapıldı. Veriler 61 meme kanseri tanısı alan hasta ile araştırmacılar tarafından hazırlanan Meme Kanseri Risk Faktörleri Değerlendirme Soru Formu ile yüz yüze görüşülerek toplandı. Verilerin her birinin toplanması yaklaşık 15 dakika sürdü. Toplanan veriler sayı ve yüzde olarak verildi. Bulgular: Araştırmada hastaların; yaş ortalaması 54.77±5.93 (min:40 max: 70), kilo ortalaması 69.50±13.00 (min: 46.00 max: 100), boy ortalaması 164.85±5.47 (min: 150 max: 178), beden kütle indeksi ortalaması 25.84 (min: 20.44 max: 31.56) olarak belirlendi. Hastaların % 4.9’unun spor yaptığı, % 90.2’sinin yemeklerini yağlı pişirdiği, %93.4’ünün hazır gıda tükettiği saptandı. Kadınların kendi kendine meme muayenesini düzenli olarak yapma durumu % 26.2 ve tanı öncesi mammografi çektirme durumları %14.8’idi.Sonuç: Kadınların ailesinde meme kanseri görülme oranı düşüktür. Kadınların yaklaşık 11 yaşlarında menarş oldukları, ancak menapoza girme yaşlarının 55’in altında olduğu, yağlı besin tükettikleri, hazır gıda olarak içecek ve yiyecek aldıkları belirlenmiştir.
Politik Gündemi Takip Aracı Olarak Youtube: Babala TV Örneği
Authors: ÇAĞLAK Engin , PEKCAN Gülay Elbi
Published: May 2022

Çağımız “iletişim çağı” olarak adlandırılmakta ve iletişim teknolojileri her geçen gün hayatımıza yenilikler katmaktadır. Sosyal medya kullanım oranları da buna bağlı olarak hızla artmaktadır. Sosyal medya platformlarından olan Youtube, kullanıcılarına güncel olayları ve önemli haberleri anında iletebilmektedir. Aynı şekilde politik gündem takibi Youtube üzerinden yapılabilmektedir. Youtube kanalı olan Babala TV bunlardan biridir. 2018 seçim sürecinde de siyasi önderler, Babala TV programında Youtube üzerinden seçim propagandalarını yapabilmişlerdir. Bu çalışmada gençlerin politik gündemi takibinde sosyal medyanın ne kadar etkili olduğu araştırılmıştır. Aynı zamanda Babala TV kanalında yayınlanan siyasilerin konuşmalarının oy verme sürecinde bir faktör olup olmadığı sorgulanmıştır. Çalışmanın amacı sosyal medyanın gençlere politik gündem takibi için araç olup olmadığını ortaya koymaktır. Çalışma, hedeflenen yaş aralığındaki kuşağın gelecek dönemlerde de siyasal tutumlarına etki edecek medya mecralarının belirlenmesi açısından önemlidir. Çalışmanın evreni üniversite öğrencisi olan 18-25 yaş aralığında gençler olarak belirlenmiştir. Anket örneklemi ise basit tesadüfî örneklem grubu olarak Çanakkale Onsekiz Mart Üniversitesi öğrencileri arasından seçilmiştir. Literatür taramasının yanı sıra içerik analizi ve anket çalışması yürütülmüştür.
The Development of Student Worksheets in Writing Social Containing Explanation Texts in Class VI Studentsstate School 105345 Sidodadi
Authors: Tarigan Diah Handayani , Sutikno Sutikno , Kartolo Rahmat
Published: May 2022

The problem in this study is how appropriate the teaching materials (Student Worksheet) in learning to write socially charged explanatory texts for class VI students are developed based on media experts, material experts, teachers and students?. The purpose of this study was to describe the feasibility of teaching materials (Student Worksheets) in learning to write socially charged explanatory texts for elementary/MI students. Class VI developed based on media experts, material experts, teachers and students. The research method used in this research is the research & development method. The research subject of this development product is the validator. The research subject of this development product is the validator. Assessment is done by filling out the validation sheet that has been provided, the validator in this study is the supervisor. In addition, the subjects of this research are sixth grade students of SD Negeri 105345 Sidodadi Ramunia, Beringin District. The object of this research is the Student Worksheet in learning to write socially charged explanatory texts in class VI SD Negeri 105345 Sidodadi Ramunia, Beringin District.
Board Members' Performance Achievements In Development In Barat Aceh District
Authors: Manan Afni Abdul
Published: May 2022

Regional autonomos originated from the demands of  Indonesian society since the reform era in 1998. This is one of the community's requirements to carry out development. In accordance with the rules of the autonomous legislation law number  32 of 2004 about local goverment and number 33 of 2004. Governments in the regions that are allowed to manage their regions are the council. In order to fulfill  the need of community’s development, the council has a big  role that need to be implemented. The development of community in Aceh Barat is still below standard, especially in the field of human capital. This is because Aceh Barat experienced a tsunami in 2004 and causing a lot of damage in infrastructure chain. The role of the council is needed to take care of its territory in supervision and finance. Both of the roles need to be assessed by the headman to get an optimal impact. This study used qualitative methods and descriptive analysis. The data is obtained through interviews and observations. A total of nine respondents were selected to provide information in this study. The three area in this study were Arongan Lambalek, Tanjong, and West Woyla. The study showed that the role of the council is indispensable for development. The intended role is the role of financial transactions and supervision that influence development in various aspects. Therefore, two-way communication between the council and the community is needed. Another alternative of the headman is required to achieve the community's development goals. The result of the study also showed a good relationship between the council and the headman in the process of development implementation. This showed that the council worked optimally to develop its territory as community desires. The assistance provided by the council is not the same because each regions is different from the others. The factors that affected the role of the council are the factors of experience and knowledge. The result of this study formulated the majority of the council have played its role namely the role of finance and supervision. And so on, the majority of the headman provide a good perspective to the role of the council in the development of community in Aceh Barat.
Study on Structural Equation Modeling for Analyzing Data
Authors: Khairi M. Ihsan , Susanti Dwi , Sukono Sukono
Published: May 2022

Structural Equation Model (SEM) is a combination of two separate statistical methods, namely factor analysis developed in psychology and psychometry and simultaneous equation model developed in econometrics. Factor analysis was first introduced by Galton in 1869 and Pearson (Pearson and Lee, 1904). Spearman's (1904) research is the development of a general factor analysis model in his research relating to the structure of mental abilities, Spearman stated that the intercorrelation test between mental abilities can determine general ability factors and special ability factors. SEM is a combination of factor analysis and path analysis into one comprehensive statistical method. Path analysis itself is the forerunner of the structural equation of Sewwl Wright's research in the field of biometrics. Wright's contribution is to be able to show that the correlation between variables is related to the parameters of a model described by a path (path diagram). In SEM there are 2 variables, namely latent variables (exogenous and endogenous) and indicator variables. SEM has 2 equation models, namely the measurement equation model and the structural equation model. SEM also has 2 errors, namely the error for the measurement equation model and the error for the structural equation model. In general, SEM is formed from the relationship between latent variables and their respective indicator variables. To test whether the existing indicator variables are valid indicators for measuring the latent construct, Confirmatory Factor Analysis (CFA) is used. Data analysis with SEM must meet the existing SEM assumptions. The model feasibility test is carried out based on the goodness of fit criteria. The stages in SEM analysis are theoretical model development, flow chart drawing, flow chart conversion into equation form, input matrix and model parameter estimation techniques, model problem identification, evacuating model parameter estimates, model interpretation and model modification.
Risk Control Of Onion (Allium ascalonicum L.) Production On Surjan Land
Authors: Aliudin Aliudin , Wibowo Aris Supriyo , Sariyoga Setiawan , Setiawan Mohamad Arief
Published: May 2022

Onion is one of the commodities of annual vegetable crops that have high economic value, a type of short-lived plant, can be propagated vegetatively or generatively, can be developed in low to highland areas and can be cultivated throughout the year. High demand for onions was not followed by supply of onion in the market. This is caused by high risks in the cultivation of  Onions. As the theory of supply, the level of supply of a commodity will be affected by the amount of commodities produced. The research aims to analyze the risk factors for onion production and onion supply behavior. The method of this research was survey methode. The location of this research was at Tonjong, Kramatwatu subdistrict. The population of onions farmers was 117 farmers and the amount of the sample used in this research is 54 farmers. Sort of datas that used in this research were primary data and secondary data. The analysis data that used are risk analysis, and multiple linear regression analysis. The results showed that the level of risk of onion in Tonjong Village was 1621.91 or 32 percent of the productivity value obtained by farmers. The source of the risks on Onion farming in Tonjong Village are climate and weather, pests and plant diseases, land fertility, and the effectiveness of using inputs. There are two factors that significantly influence the behavior of onion offering in Tonjong  Village, the cost variable of fungicide and the variable cost of insecticide.
Marketing Communication Strategy Of Riyan Farm Hydroponic Vegetable (Case Of Riyan Farm Smes, Serang City)
Authors: Mulyati Sri , Krisdianto Nanang , Setiawan Mohamad Arief
Published: May 2022

Riyan Farm is one of agricultural business that uses hydroponic method to grow vegetables in Serang City. However, many people of Serang City and the county around are still not knowing Riyan Farm’s hydroponic product which results in decreased sales. This requires Riyan Farm to determind the right marketing communication strategy. This study lasted for 7 months with several considerations. The research took place on RSS Pemda Housing Block D1 Banjarsari District Cipocok Jaya Serang City Banten. This research uses a benchmarking approach against other business that have similar products and have been successful in the market. Benchmarking method performed by collecting information from other Farm’s product through in-depth interviews and observation and other data that have reliable information as books and literature. The analysis tools used are Gap analysis, IFE matrix, EFE matrix and SWOT matrix. The Gap analysis based on marketing communication mix results in 7 recommendation of communication strategy. In order to create the applicative strategy that suits company’s environment, those 7 recommendations should be combined with the result of SWOT Analysis. The last of result shows 5 market communication alternative strategy.
Green Information and Communication Technologies Implementation in Textile Industry Using Multicriteria Method
Authors: ADEBISI JOHN , Babatunde Olubayo
Published: May 2022

It has been recognized that green Information Communication Technology (ICT) is fast becoming popular in every sector. It’s fundamental relevance to textile industry requires urgent attention than ever. Over the years selections of technologies to drive the textile industry has been a debate. There is a need for an efficient technology selection method to realize this goal. Selection of green ICT alternatives is a multicriteria decision making problem which has been sparsely explored in open literature. This study presents green ICT adoption in the textile industry using a fuzzy-TOPSIS multi-criteria approach for the most preferred ICT alternative in a textile industry. Criteria for Green ICT selection were identified by administering interview with selected textile and ICT industry experts at the managerial cadre of organizations and academics. Criteria considered were Implementation Cost (IC), Operating and Maintenance Cost (OMC), Environmental Impact (EI), Improved System Performance and Use (ISPU), Supply Chain Management (SCM) and Employment Opportunities (EO). Results shows that the most preferred ICT alternative is power management with overall coefficient of 0.60 while the least preferred is software optimization with coefficient of 0.23. This work will allow clean industrial process in the textile industry and also promote sustainable cities and communities through responsible consumption and production as highlighted by sustainable development goals (SDG) 11 and 12.
Modified Szmidt and Kacprzyk’s Intuitionistic Fuzzy Distances and their Applications in Decision-making
Authors: Ejegwa P. A. , Onyeke I. C. , Terhemen B. T. , Onoja M. P. , Ogiji A. , Opeh C. U.
Published: May 2022

Intuitionistic fuzzy models are significant in resolving decision-making. Distance measures under intuitionistic fuzzy environment are reliable techniques deployed to express the application of IFSs. Some approaches of estimating distances between IFSs have been explored by Szmidt and Kacprzyk, where the complete parameters of IFSs are considered. Albeit, the distance operators lack reliability because of certain setbacks. In this paper, we modified Szmidt and Kacprzyk's distance operators between IFSs to enhance reliability in terms of applications. Some theorems are given to substantiate the validity of the modified intuitionistic fuzzy distance operators. Futhermore, decision-making cases of pattern recognition and disease identification are discussed using the Szmidt and Kacprzyk's distances and their improved versions where information are represented in intuitionistic fuzzy pairs. From the study, it is observed that the modified Szmidt and Kacprzyk's distance operators between IFSs yield better results compare to the Szmidt and Kacprzyk's distance operators between IFSs.
Optimization by Box Behnken Design for Eosin Yellow Dye Removal from Aqueous Medium using Date Palm Seeds-Porous Carbon@TiO2 Blend
Authors: Azeez Samsudeen Olanrewaju , Jimoh Akeem Adebayo , Saheed Ismaila Olalekan , Otun Kabir Opeyemi , Mustapha Aliru Olajide , Adekola Folahan Amoo
Published: May 2022

Biological stains are potentially harmful compounds present in the environment, in which Eosin yellow dye (EYD) is one of the most commonly applied stains. In this research, date palm seeds-porous carbon (DPSC) and its TiO2 blend (TiO2-DPSC) were prepared and their efficiency on the removal of EYD from an aqueous medium was investigated. Characterization by SEM, EDX, FTIR and BET surface area was performed on the materials. The BET surface area (542.63 m2/g) and pore diameter (2.02 nm) of TiO2-DPSC were found to be higher than that of DPSC (332.74 m2/g and 1.85 nm) indicating that TiO2-DPSC is mesoporous while DPSC is microporous. The major and interactive impacts of the adsorption parameters: initial EYD concentration, pH, adsorbent dose, and time of contact were examined by Box Behnken design in response surface methodology. The high R2 values 0.9658 and 0.9597 for DPSC and TiO2-DPSC agreed with the adjusted R2 values suggesting the quadratic model sufficiently interprets the adsorption data. The optimum removal efficiency of EYD onto DPSC and TiO2-DPSC was 34.63 mg/g and 55.34 mg/g which are in agreement with the predicted removal of 34.75 mg/g and 50.11 mg/g respectively at the center point values of Co=300 mg/L, pH 2, 362.5 min and 0.1 g adsorbent dose. The results also showed the acceptability of the Box Behnken design in response surface methodology for the optimization of EYD removal from aqueous media using DPSC and TiO2-DPSC blends. Hence, better EYD removal reported in TiO2-DPSC compared to DPSC was due to its improved adsorptive features.
Mathematical Model of In-host Dynamics of Snakebite Envenoming
Authors: Abdullahi S. A. , Hussaini N. , Habib A. G.
Published: May 2022

In this paper, we develop an in-host mathematical model of snakebite envenoming that includes tissue, red blood and platelet cells of humans as specific targets of different kinds of toxins in the snake venom. The model is use to study some harmful effects of cytotoxic and hemotoxic snake venom on their target cells under the influence of snake antivenom. The model has two equilibrium points, namely, trivial and venom free. It has been shown that both the equilibrium points are globally asymptotically stable and numerical simulations illustrate the global asymptotic stability of the venom free equilibrium point. Furthermore, simulations reveal the importance of administering antivenom to avert the possible damage from venom toxins on the target cells. It is also shown through simulation that administering the required dose of antivenom can lead to the elimination of venom toxins within one week. Therefore, we recommend the administration of an adequate dose of antivenom therapy as it helps in deactivating venom toxins faster and consequently enhances the recovery time.
Analysis of Adenanthera pavonine L. (Febaceae) Pod and Seed as Potential Pyrolysis Feedstock for Energy production
Authors: Oluwasina Olugbenga Oludayo
Published: May 2022

Though countless possible bioenergy feedstocks are available, the lack of information on their characteristics has made them unusable for industrial purposes. This study revealed the bioenergy potential of seed and pod of Adenanthera pavonine by analyzing their physicochemical, ultimate, proximate, kinetic, thermodynamic, thermal, and higher heat value. The seed presented 19.90%, 2.12%, 24.40% and 14.73% cellulose, hemicellulose, lignin and extractive respectively, while the pod has 21.35%, 25.15%, 23.50% and 11.63%. From the proximate analysis the pod has higher volatile matter (92.79%), and fixed carbon (1.40%), while the seed has higher moisture (6.36%), ash (0.84%), and higher heat value (18.63 MJ kg-1). The kinetic and thermodynamics results present the seed with Ea 23.73 kJmol-1, ?H 14.06 kJmol-1, ?G 10.74 kJmol-1 and ?S -78 Jmol-1, while the pod has 21.3 kJmol-1, ?H 12.20 kJmol-1, ?G 10.98 kJmol-1 and ?S -83 Jmol-1. The probable energy blockade between Ea and ?H for the seed and pod was 9.72. The high value of H: C and low O: C, with the higher heating values recorded for the pod and seed, presented them as better biofuel candidates. The study results have supplied necessary information for the industrial utilization of Adenanthera pavonine seed and pod as valuable feedstocks for bioenergy conversion.
An Internet-of-Things based Real-time Monitoring System for Smart Classroom
Authors: Ojo Oluwafolake , Kareem Morenikeji Kabirat , Odunuyi Samuel , UGWUNNA Charles
Published: May 2022

The Development in technology has brought about a common norm of communicating and interacting with appliances remotely using portable devices like laptops and smartphones that have Internet connections. This is possible with the use of the Internet of Things, popularly referred to as IoT. This paper presents a system by which classroom held interactions specifically seat allotment is made a simpler process by secured automation coupled with the Internet of Things to develop a system that enables a person or group of people to remotely monitor seat allotment, de-allotment with precision over a wide distance. Traditional means of allotment are quite slow and tiresome especially when dealing with a large number of students. Hence there is a need to develop a system to automatically allot, track, and monitor real-time seats in a classroom. In this research, an IoT seat allotment system is proposed; the system is developed and tested within a smart classroom environment using the Federal University of Agriculture Abeokuta (FUNAAB), Nigeria as a case study. The system is implemented on Arduino IDE using C++ programming language and a prototype of the mobile IoT seat allotment application is developed using Java programming language. Through experimental analysis, it was discovered that the IoT Seat allotment achieved the ranges of 30 % to 50 % reduced time, and higher accuracy when compared with the traditional seat allotment method.
Computational investigation of free convection flow inside inclined square cavities
Authors: Mariya Helen  , V Prabhakar
Published: May 2022

The temperature and fluid profiles of flow inside tilted square cavities are analysed with two different cases of thermal boundary conditions, (1) Isothermally cold sidewalls of the cavity and the hot bottom wall kept parallel to the insulated top wall, (2) Hot left wall, cold right wall, insulated top and bottom walls. The Galerkin finite element method with penalty parameter is used to solve the nonlinear coupled system of partial differential equations governing the flow and thermal fields. The method is further used to solve the Poisson equation for stream function. The results are presented in terms of isotherms and streamlines. The Gaussian rule with the hybrid function formed from the block-pulse function and Lagrange polynomial is implemented for the evaluation of the definite integrals present in the residual equations.  Attempting to affix the hybrid methods in the integration part for solving Finite Element Method (FEM) turned efficacious as the convergence is achieved for streamlines and isotherms with the existing results. The tilted square cavities with inclination angles Deg 0 to Deg 90 and Rayleigh number ranging between 10^3  and 10^5 for Pr=0.71  (air) are investigated. The source code for the finite element analysis is written in Mathematica. The results thus obtained are found to be competent with those of COMSOL, the Software for Multiphysics Simulation.
Approximate Solutions of the Schrodinger Equation for a Momentum-Dependent potential
Authors: Onate Clement , Okon I. B. , Onyeaju M. C. , Antia A. D.
Published: May 2022

The solution of one-dimensional Schrodinger equation for a newly proposed potential called modified shifted Deng-Fan momentum-dependent potential is obtained via supersymmetric approach. The expectation values of momentum and position were calculated using Hellmann Feynman Theorem. The effects of momentum-dependent parameter on the solutions of the system as well as the expectation values were studied. Finally, the special cases of the interacting potential were obtained.
Jackknife Kibria-Lukman M-Estimator: Simulation and Application
Authors: Jegede Segun L. , Lukman Adewale F. , Ayinde Kayode , Odeniyi Kehinde A.
Published: May 2022

The ordinary least square (OLS) method is very efficient in estimating the regression parameters in a linear regression model under classical assumptions. If the model contains outliers, the performance of the OLS estimator becomes imprecise. Multicollinearity is another issue that can reduce the performance of the OLS estimator. This study proposed the Robust Jackknife Kibria-Lukman (RJKL) estimator based on the M-estimator to deal with multicollinearity and outliers. We examine the superiority of the estimator over existing estimators using theoretical proofs and Monte Carlo simulations. We put the estimator to the test once more using real-world data. We observed that the estimator performs better than the existing estimators.
Approximate Analytical Solution of Fractional Lane-Emden Equation by Mittag-Leffler Function Method
Authors: Awonusika Richard Olu , Mogbojuri Oluwaseun Akinlo
Published: May 2022

The classical Lane-Emden differential equation, a nonlinear second-order differential equation, models the structure of an isothermal gas sphere in equilibrium under its own gravitation. In this paper, the Mittag-Leffler function expansion method is used to solve a class of fractional LaneEmden differential equation. In the proposed differential equation, the polytropic term f(y(x)) = ym(x) (where m = 0,1,2,... is the polytropic index; 0 < x <=1) is replaced with a linear combination f(y(x)) = a0 + a1y(x) + a2y2(x) + ··· + amym(x) + ··· + aNyN(x),0 <=m <=N,N <= N_0. Explicit solutions of the fractional equation, when f(y) are elementary functions are presented. In particular, we consider the special cases of the trigonometric, hyperbolic and exponential functions. Several examples are given to illustrate the method. Comparison of the Mittag-Leffler function method with other methods indicates that the method gives accurate and reliable approximate solutions of the fractional Lane-Emden differential equation.
Comparative Analysis of the Implication of Periods Before and During Vaccination of COVID-19 Infection in Some Regional Leading African Countries
Authors: Owolabi Abiola T. , Ayinde Kayode , Adejumo Taiwo J. , Kasali Wakeel A. , Adewuyi Emmanuel T.
Published: May 2022

There has been a high expectation about the efficacy of coronavirus disease 2019 (COVID-19) vaccines. This research investigates and compares the efficiency of COVID-19 vaccines in five (5) African countries and evaluates the risk or preventive factors inherent in COVID-19 spread. Five different COVID-19 leading African countries in their respective regions (Nigeria, Ethiopia, South Africa, Morocco, and Cameroon) were considered in this study. Population sampling proportional to size concept was used to draw data for two periods (before and during COVID-19 vaccination). A sequential analysis approach was adopted, focusing on the estimates of some epidemiological metrics for the two distinct periods. Nigeria (a wet region) has the lowest risk of COVID-19 incidence during vaccination. The risk of being reported COVID-19 positive in South Africa (a high semi-arid region) is approximately 137 times the number in Nigeria. This study suggests that while vaccination has successfully reduced the case fatality rate in most countries considered except Ethiopia, infection and incidence rates increase during vaccination in all countries except Nigeria. Methods other than vaccination like wearing a face mask, washing hands, and avoiding large gatherings should be intensified to curtail incidence and infection rates.
Implicit Four-Point Hybrid Block Integrator for the Simulations of Stiff Models
Authors: Sunday J. , Kumleng G. M. , Kamoh N. M. , Kwanamu J. A. , Skwame Y. , Sarjiyus O.
Published: May 2022

Over the years, the systematic search for stiff model solvers that are near-optimal has attracted the attention of many researchers. An attempt has been made in this research to formulate an implicit Four-Point Hybrid Block Integrator (FPHBI) for the simulations of some renowned rigid stiff models. The integrator is formulated by using the Lagrange polynomial as basis function. The properties of the integrator which include order, consistency, and convergence were analyzed. Further analysis showed that the proposed integrator has an A-stability region. The A-stability nature of the integrator makes it more robust and fitted for the simulation of stiff models. To test the computational reliability of the new integrator, few well-known technical stiff models such as the pharmacokinetics, Robertson and Van der Pol models were solved. The results generated were then compared with those of some existing methods including the MATLAB solid solvent, ode 15s. From the results generated, the new implicit FPHBI performed better than the ones with which we compared our results with.
Finanz- und Kapitalmärkte verstehen
Authors: Beck Hanno
Published: May 2022

Börse für Fußgänger: Kapitalmärkte werden oft als „Orte periodisch wiederkehrenden Irrsinns“ beschrieben. Dieses Buch hilft Lehrenden ohne wirtschaftswissenschaftliche Vorbildung, diesen Irrsinn zu verstehen. Der Autor erklärt verständlich, was Kapitalmärkte sind, was sie leisten und wie die wichtigsten Produkte funktionieren. Nach der Lektüre können sie sicher mit Begriffen wie Portfoliotheorie, Rendite, Risiko, Alpha, Chaos, Zufall, schwarzen Schwänen, Prognosen, Börsengurus oder Psychologie umgehen.
Teaching Oral History at University
Authors: Söhner Felicitas
Published: May 2022

Oral history brings the past to life through personal and plays an important role not only in the culture of remembrance. In dealing with aspects of contemporary history, methodological knowledge of oral history is becoming increasingly relevant. Written in clear language, this volume contains step-by-step instructions, detailed advice, checklists and exercises to help teachers convey the concept of oral history. It offers teachers a useful toolkit for teaching methodological grounding, practical skills and abilities, and highlights the social significance of oral history, its challenges and potential.
The Stigmatisation of Family in the Biography of the Soviet Leader (on the Example of Army General A. V. Khrulev)
Authors: Popravko Elena A.
Published: May 2022

Creation of Soviet leader official biography assumed using of class patterns. This formed an exclusion zone connected with stigmatization of a family. The soviet leader – “faithful son of the party” – was a man out of nowhere, a production of social industry. However, social experience linked with the family could determine the character’s attitude to major landmarks of the epoch. But some information about the true origin didn’t disappear. It was accumulated to be used as a tool of social control within the framework of repressive policies. The stigmatization of a family as an important part of social rise during the soviet period is studied basing on the biography materials of Army General A. V. Khrulev. The official biography contained mix of real and fictional information, which were constructed following ideological patterns. The true status of Khrulev’s family was reconstructed on the basis of non-published archival materials. The status of Khrulev’s family caused problems for its members who occupied high positions in soviet hierarchy: they were accused of using hired labor (being kulaks) in 1930; of using position by some family members (Mikhail was a deputy chairman of the Murmansk Executive Committee, Andrei – a high ranking military commander). In 1938 Mikhail Khrulev was convicted under article 58 of Criminal Code of RSFSR, and that transformed the status of all relatives: they became “family members of traitor to Homeland”. In this research, the influence of these facts is studied, forming the attitude of Army General A. V. Khrulev to repressive policy of the Soviet state at 1930s – early 1950s, and, namely, to those persons who were responsible for carrying out repressive policy in practice.
Imperial Power and The Policy of Transformation of the Outlying Lands
Authors: Zubkov Konstantin I. , Poberezhnikov Igor V. , Shumkin Georgy N.
Published: May 2022

The article examines the structure and content of the monograph “Center and Regions: Economic Policy of the Government on the Outlying Lands of the Russian Empire (1894–1917)” which was prepared by a team of St. Petersburg and Moscow historians under the editorship of M.V. Khodyakov; it analyzes the characteristic features of the authors’ approaches and the significance of this work for current practices of studying the Russian Empire’s outlying areas. This monograph is a non-ordinary historiographical phenomenon in terms of its goals (to give an integral, comprehensive view of the economic policy of the center in relation to the “outlying regions”), the number of tasks implemented and the total extend of the work done. The monograph includes 31 paragraphs, each devoted to poorly studied or entirely unexplored problems. However, due to the unsatisfactory elaboration of fundamental theoretical and conceptual issues, as well as the scale of the project, and the limited time span set for its implementation, the reviewed work contains a number of shortcomings: a weak introduction (especially a historiographical survey), superficial conclusions (or their absence in paragraphs), the inconsistency of the subject of some paragraphs with the matter of economic policy. But despite of all the shortcomings, this work represents a significant contribution to the study of the frontier spaces of Russia as regards both the concrete historical material introduced into scientific circulation, and the non-trivial attempt itself to create a generalizing picture of imperial economic policy on the outlying areas of Russia in the late 19th – early 20th centuries.
Exclusion in the City Space: the Italian Experience
Authors: Zakuraeva Elizaveta D.
Published: May 2022

This article draws attention to the problems of exclusion and building frontiers in urban space. At the same time, the focus of the study is concentrated on the systematic nature of the formation of cultural exclusion zones at different time intervals in the history and culture of the Apennine Peninsula, that is, on the territory of the modern Italy. The reflection of exclusion in the city, which occurs throughout the urban history of Italy, is reflected and fixed in the history of Italian culture and art and in the phenomena of building physical and symbolic boundaries, marginalization and appropriation of space associated with this phenomenon.

This work is intended to prove the need to transform the erroneous position that exclusion is characteristic only of a modern city, a megapolis as a product of globalization, while the exclusion of an individual in an urban environment and the development of urban civilization are two interrelated and simultaneous processes that are developing over the centuries.

Taking into account the affects and experience of fixing exclusion in the urban cultural spaces of the Apennine Peninsula, the author comes to the conclusion that the history of urban culture fixes the presence of exclusion, which is characteristic of the individual living in the urban space from the very moment the city appeared and the corresponding subject-centric urban culture, the existence in which unfolds in the space of subordination, overcoming borders or resistance to the social order it gives rise to. All of these factors also affect the identity of the subject of urban everyday life. Italy, traditionally understood as the cradle of civilization and world culture, provides one of the most representative experiences of building, fixing, reflecting and experiencing exclusion in the urban environment due to the evolutionary process of changing and crossing different cultures.
Russia as a Significant Other in Latvian Regional Museums: New Mental Borders and Cultural Exclusion
Authors: Zhirnova Lidia S.
Published: May 2022

The collapse of the Soviet Union brought about a massive redefining of borders, formal as well as mental. Latvia was among those countries that needed to reshape their identity, and its elite opted for distancing the country from Russia and the Soviet past. The article studies how this approach is reflected in 32 local history museums around Latvia. Many of their collections were formed in the Soviet times, and now museums have to redescribe them in accordance with the new ideological framework of “two occupations”. The study presents an initial classification of museums according to their scope. The article highlights the underrepresentation of the Russian language in the texts of exhibitions despite a considerable share of the Russian-speaking population. The main connotations with Russia are singled out, the most emotional of them being the narrative of the “Soviet occupation” and deportations, that was excluded from the public discourse in the Soviet times, and now is re-actualized. Three strategies of dealing with the Soviet past within the framework of museums are described: leaving Soviet items without a consistent narrative, pushing this topic to the margins of the exhibition and rewriting the Soviet discourse in complete accordance with the new ideological framework.