bluuebunny/crossref_metadata_2025 huggingface dataset:
Privates Kapital für Chinas Flughäfen
Authors: Schwolgin Armin F.
Published: June 2024

Investitionen privater in- und ausländischer Kapitalgeber in chinesische Flughäfen waren in der Vergangenheit nur begrenzt möglich. Nach einer Guideline der Civil Aviation Administration of China vom 25.10.2016 haben in- und ausländische Privatunternehmen nunmehr die Möglichkeit, sich unbeschränkt im Flughafensektor der Volksrepublik China zu engagieren. Nach einem Rückblick auf die historische Entwicklung wird auf die neue Regelung eingegangen und eine erste Bewertung vorgenommen.
Indiens E-Commerce-Markt wächst rasant
Authors: Ruppik Dirk
Published: June 2024

Zwischen 2016 und 2020 wird der Online-Markt gemäß Prognose um 28 % jährlich wachsen und soll einen Wert von rund 60 Milliarden Euro erreichen. Amazon und Alibaba sind bereits in Indien aktiv und setzen damit ein klares Zeichen für Online-Verkäufer, jetzt aktiv zu werden. Allerdings gibt es viele Herausforderungen zu meistern. Dazu gehören Lieferschwierigkeiten aufgrund der schlechten Infrastruktur insbesondere in ruralen Gebieten.
Elektrische und konventionelle Antriebskonzepte
Authors: Petters Alexander , Rusetzki Christoph , Reise Sönke
Published: June 2024

Der Übergang automobiler Antriebssysteme von konventionellen Verbrennungsmotoren zu elektrischen Motoren erlebt sowohl in der Politik als auch in der Wirtschaft erhebliche Aufmerksamkeit. Die ausschlaggebenden Motive für die Elektrifizierung der Antriebstechnologie sind die Reduzierung der Abhängigkeit von fossilen Brennstoffen und die Reduzierung von globalen und lokalen Emissionen wie zum Beispiel Kohlenstoffdioxid (CO2) und Lärm. Aufgrund der zunehmenden Ressourcenknappheit und der steigenden Rohstoffpreise resultiert ein stetiger Innovationsdruck in Richtung verbrauchsärmerer Fahrzeuge. Aus dieser Motivation heraus widmen sich Fahrzeugentwickler heute einem Antriebskonzept, welches zuletzt im Jahre 1912 seinen Höhepunkt feierte, dem Elektroauto.
Autonomes Rangieren auf der Bremischen Hafeneisenbahn
Authors: Krämerd Iven , Arendt Frank
Published: June 2024

Der Betrieb im Bereich der Hafeneisenbahnen in deutschen und europäischen Häfen ist durch eine hohe Anzahl an Akteuren und einer fehlenden übergreifenden Planung und Optimierung aller komplexen Prozesse gekennzeichnet. Innovative Technologien und Geschäftsprozesse sind geeignet, wichtige Schritte auf dem Weg zum Ziel einer Gesamtoptimierung zu leisten.
Sozio-ökonomische Wirkungen der Flughäfen in Deutschland
Authors: Hujer Jens
Published: June 2024

In einer globalisierten Welt kommt der Diskussion um Bau und Erhalt von Flughäfen in Deutschland eine zentrale Bedeutung zu. Die politischen Entscheidungen darüber erfordern valide empirische Studien, die alle möglichen Effekte berücksichtigen müssen. Dazu sind die direkten, indirekten, induzierten, katalytischen und externen Effekte zu berechnen. Insbesondere sind jedoch auch Substitutions- und Verlagerungseffekte zu berücksichtigen. Für politische Entscheidungen über den Bau bzw. Ausbau von Flughäfen sind empirische Befunde zu allen Wirkungskategorien als wissenschaftliche Grundlage gleichermaßen wichtig.
Autonome Palettentransporter für tonnenschwere Lasten
Authors: Rimmele Christopher
Published: June 2024

Elektrisch angetriebene Transportfahrzeuge für bis zu 30 t Nutzlast im Begegnungsverkehr bei der Uzin Utz AG – beidseitig vollautomatische Be- und Entladung trotz verschieden hoher Laderampen
Interoperabler Schienenverkehr in Europa
Authors: Stoll Fabian , Schüttert Andreas , Nießen Nils
Published: June 2024

Aufgrund meist historisch gewachsener Inkompatibilitäten der nationalen Eisenbahnnetze und nationaler Unterschiede bei der Fahrplanung und Disposition ergeben sich im grenzüberschreitenden Schienenverkehr Wettbewerbsnachteile im Vergleich zu den konkurrierenden Verkehrsträgern. Die Beseitigung von Hindernissen des grenzüberschreitenden Verkehrs und die weitergehende Harmonisierung nationaler Anforderungen stellen wesentliche verkehrspolitische Ziele der Europäischen Union dar, welche durch regulative Bemühungen ordnungsrechtlicher, technischer und betrieblicher Art mittelfristig realisiert werden sollen.
Mehr Sicherheit im Verkehr ist machbar
Authors: Salek de Braun Sofia
Published: June 2024

Unfälle im Straßenverkehr entstehen nur durch menschliches Versagen – so die allgemeine irrige Annah-
me. Die Realität spricht eine andere Sprache.
PPP in Japan’s railway system – a success story
Authors: Wunderlich Wilfried , Mayer Oliver
Published: June 2024

Public private partnerships for railways in Japan are different from those in other countries. Many railway lines in Japan are profitable and can easily generate enough revenues, so that there is no need for either the public sector to pay subsidies, nor for the private sector to invest money in public railways. However, due to declining passenger numbers in some areas, this model does not work anymore. In this paper the Japanese model of PPP is described, where the public sector takes over private railways to prevent them from being closed. The authors describe the main principles and the reasons of successful PPP-projects in Japan.
Disposition mit Zeitfenstervorgaben
Authors: Elbert Ralf , Friedrich Anne , Thiel Dominik
Published: June 2024

Teilentscheidungen im Dispositionsprozess mit Zeitfenstervorgaben werden literaturbasiert und durch eine Prozessaufnahme identifiziert und in einem Fokusgruppeninterview validiert. 40 Softwarelösungen zur Tourenplanung und -optimierung werden anhand ihres Webauftritts auf Möglichkeiten zur Unterstützung bei diesen Teilentscheidungen untersucht. Deutlich wird, dass gebuchte Zeitfenster vielfach berücksichtigt werden, einer Vollintegration von Zeitfensterbuchungen in Softwarelösungen jedoch noch Schnittstellenprobleme und Probleme bei der Datenqualität als Barrieren entgegenwirken.
Bundesverkehrswegeplan 2020 - die Chancen nutzen
Authors: Eickmann Carla , Krämer Iven
Published: June 2024

Mit dem im Dezember 2016 erfolgten Bundestagsbeschluss der Ausbaugesetze für die Bundesnetze Straße, Schiene und erstmals auch Wasserstraße klang die ungewöhnlich breite Diskussion über die Entwicklung der Verkehrsinfrastruktur in Deutschland zunächst wieder ab. Natürlich beschäftigt sich die Fachwelt weiterhin intensiv mit der Konkretisierung, Planung und Umsetzung einzelner Projekte des Bundesverkehrswegeplans wie auch mit Wegen zu einer schnelleren Umsetzung, in der breiten Öffentlichkeit aber ist es zu dieser Thematik weitgehend ruhig geworden. Dieser Zustand ist trügerisch, denn nur mit einer schnellen, konzentrierten Umsetzung des Planes lassen sich die sehr ambitionierten Ziele erreichen. Dies gilt nicht nur – aus norddeutscher Sicht aber in ganz besondere Weise – für die Hinterlandanbindungen der Häfen.
Mobility inside - Mobilitätsplattform für Deutschland
Authors: Ringat Knut , Puzicha Jörg , Wolff Oliver
Published: June 2024

Die Vernetzungsinitiative Mobility inside wurde durch neun Partner initiiert und wird sich im ersten Quartal 2019 durch die Gründung einer Holding-Struktur und einer Betriebsgesellschaft manifestieren. Ausgehend von der bestehenden Branchenstruktur werden die Aktivitäten rund um die digitale Auskunft und den Vertrieb gebündelt. Die Plattform wird auf Basis vorhandener und gemeinsam nutzbarer Komponenten, Infrastrukturen und Lösungen aufgebaut. Bund und Länder wollen die Vernetzungsinitiative unterstützen.
Brennpunkt Stadtverkehr: Kommunen nicht alleine lassen
Authors: Eck Florian
Published: June 2024

Der Zuwachs an Verkehrsaufkommen und -leistung ist enorm – und den größten Zuwachs müssen Städte und Ballungsräume bewältigen. Wie können sie diese Herausforderungen meistern? Ein Kommentar vom Stellvertretenden Geschäftsführer des Deutschen Verkehrsforums, Dr. Florian Eck.
P2P-Carsharing
Authors: Pakusch Christina , Neifer Thomas , Bossauer Paul , Stevens Gunnar
Published: June 2024

Ein Konzept, dessen Beitrag zu einer umweltfreundlicheren Mobilität diskutiert wird, ist das P2P-Carsharing. Bisher ist wenig bekannt über die Motive und Erfahrungen von aktiven Nutzern oder die Ängste, Hemmungen und Barrieren der „Verweigerer“ und Nichtnutzer. Um mehr über diese Aspekte zu erfahren, haben wir qualitative Interviews mit Nutzern und Nichtnutzern geführt und ausgewertet. Die Ergebnisse zeigen, dass bestehende P2P-Carsharing-Konzepte die Bedarfe aufgeschlossener Nutzer bereits adressiert und es vor allem an Information fehlt, um diese Nutzer zu erreichen.
Pengaruh Kinerja Keuangan Terhadap Nilai Perusahaan Dengan Good Corporate Governance Sebagai Variabel Moderasi Pada Bank Yang Terdaftar Di BEI Tahun 2019-2021
Authors: Nina Lelawati  , Ardiansyah Japlani  , Fredyana Natria Anggraini
Published: June 2024

Based on the tests that have been carried out by researchers using the classical assumption test (multicollinearity test, autocorrelation test, heteroscedasticity test), hypothesis testing (panel data regression model using the fixed effect model), t test and R2 test it is found that financial performance affects the value company and good corporate governance moderate the relationship between financial performance and company value at banks listed on the IDX for 2019-2021.
Analisis Capital Budgeting terhadap Kelayakan Investasi Aktiva Tetap pada UD. Syam Jaya di Desa Klatakan Kecamatan Tanggul Kabupaten Jember
Authors: Maulana Rizal Ade , Ika Sari Maheni , Hasan afidzi Achmad
Published: June 2024

The aim of this research is to conduct a capital budgeting analysis of the feasibility of permanent activation investment at UD. Syam Jaya Jember Regency. The research variables to be analyzed are grouped into four variables, namely Payback period, Net present value, Profitability Index and Fixed Asset Investment. This research method is based on exploratory descriptive, with qualitative research using a case study approach. The data is in the form of quantitative data (numbers), but the approach uses qualitative analysis because this research will produce descriptive data. In accordance with the problems and objectives to be achieved in this research, it can be concluded from the calculation results that they are as follows: 1) The payback period for the old investment is 2 years 7 months, while the new investment produces a payback period of 1 year 10 months. And this is illustrates that new investments are more feasible because they have a faster return on investment than old investments. 2) The Net Present Value of the new investment is IDR 280,981,859 and the Net Present Value of the old investment is IDR 116,157,732, which means that if you look at the NPV value itself, the NPV of the new investment is greater than the NPV of the old investment . 3) The Profitability Index (PI) of the old investment is 1.2 and the Profitability Index of the new investment is 1.5. This implies that both investments generate profits for the company. So the new investment that the company will make is worthy of replacing the old investment.
Моделювання управління складними інформаційними багатокомпонентними системами
Authors: Симонов Д. І. , Заіка Б. Ю.
Published: June 2024

Поняття складності має різноманітні аспекти, включаючи математичні моделі,
невизначеність та синергетичні ефекти. Визначення критеріїв складності детермінованих
систем залишається проблемою через її багатозначність. У цій статті розглядається
моделювання лінійних та дисипативних динамічних систем. Лінійні системи описуються
матрицями та функціями, що визначають залежності між станом, «входом» та «виходом»
системи. Дослідження дисипативних систем важливе для уточнення моделей складних систем,
оскільки враховує явища дисипації енергії. Аналіз типів атракторів дисипативних систем
та їх властивостей допомагає розуміти поведінку системи в різних умовах. Врахування
впливу початкових умов та реакції системи на випадкові величини є ключовим аспектом для
ефективного управління складними системами.
Використання нечітких моделей у соціологічних дослідженнях
Authors: Шаркаді М. М. , Доровці А. Ф.
Published: June 2024

У сучасному світі ми все частіше стикаємося з невизначеністю, як у реальному
житті, так і в науці. Ці невизначеності також зустрічаються і в соціологічних
дослідженнях. У статті розглянемо, як нечіткі моделі можуть бути застосовані у
соціологічних дослідженнях. Запропоновано метод застосування нечіктої логіки на прикладі
дослідження добробуту населення. Оскільки добробут населення є багатогранним і складним
явищем, ми спочатку побудуємо ієрархічну систему, щоб зробити його більш зрозумілим і
легшим для моделювання. Таким чином, добробут населення можна поділити на три основні
категорії: економічний, екологічний і соціальний. У даній роботі приділимо більше уваги
дослідженню економічного добробуту, побудувавши його математичну модель за допомогою
нечітких множин.
Health insurance system and provider payment reform in the Republic of Macedonia
Authors: Donev Doncho M.
Published: June 2024

This article gives an insight to the current health insurance system in the Republic of Macedonia. Special emphasis is given to the specificities and practice of both obligatory and voluntary health insurance, to the scope of the insured persons and their benefits and obligations, the way of calculating and payment of the contributions and the other sources of revenues for health insurance, user participation in health care expenses, payment to the health care providers and some other aspects of realization of health insurance in practice. According to the Health Insurance Law, which was adopted in March 2000, a person can become an insured to the Health Insurance Fund on various modalities. More than 90% of the citizens are eligible to the obligatory health insurance, which provides a broad scope of basic health care benefits. Till end of 2008 payroll contributions were equal to 9.2%, and from January 1st, 2009 are equal to 7.5% of gross earned wages and almost 60% of health sector revenues are derived from them. Within the autonomy and scope of activities of the Health Insurance Fund the structures of the revenues and expenditures are presented. Health financing and reform of the payment to health care providers are of high importance within the ongoing health care reform in Macedonia. It is expected that the newly introduced methods of payments at the primary health care level (capitation) and at the hospital sector (global budgeting, DRGs) will lead to increased equity, efficiency and quality of health care in hospitals and overall system
Um breve histórico das políticas públicas sociais brasileiras e seus programas, direcionados à saúde da criança
Authors: Wieczorkievicz Adriana Moro , Milani Maria Luiza
Published: June 2024

Hoje, século XXI, o Brasil tem como um dos principais objetivos de desenvolvimento desse Milênio cuidar de suas crianças em todos os âmbitos, principalmente no que diz respeito à Redução da Mortalidade Infantil. Para isso a área Técnica de Saúde da Criança no Ministério da Saúde tem o compromisso de desenvolver ações de promoção à saúde e prevenção de agravos à criança. Este artigo teve por objetivo revisar a história das políticas públicas sociais brasileiras e programas direcionadas à saúde da criança. Pode-se concluir que o governo, de certa forma tenta resolver as questões próprias da criança e sua vulnerabilidade. Planeja suas ações a fim de entender e atender as necessidades infantis de maneira individual.
A prevalência na utilização de medicamentos psicotrópicos no município de Mafra: um estudo retrospectivo
Authors: Gruber Jacqueline , Mazon Luciana Maria
Published: June 2024

O consumo de medicamentos psicotrópicos tem sido objeto de diversos estudos no Brasil, devido a seus impactos sociais, econômicos e, sobretudo, suas implicações na saúde da população. O objetivo central deste estudo foi identificar a prevalência do uso de substâncias psicotrópicas entre o período de 2009-2011 no município de Mafra/SC. Tratou-se de uma pesquisa documental ao banco de dados Olosthech, no qual se gerencia a dispensação dos medicamentos no município. A pesquisa revelou que no ano de 2009, 20,9% da população de Mafra fazia uso de algum medicamento psicotrópico, já em 2010 este número foi equivalente a 7,6%, voltando a se elevar no ano de 2011 para 36,8%. Os medicamentos psicotrópicos de maior dispensação foram o clonazepam, a amitriptilina e a fluoxetina. Os dados indicam uma alta prevalência no uso dessas substâncias pela população do município de Mafra/SC. Espera-se que os dados obtidos com este estudo, subsidiem o planejamento de ações e a implementação de políticas de saúde voltadas a saúde mental e ao maior controle no consumo dessas substâncias.
Participatory Budgeting as a Democratic and Managerial Innovation: Recent Trends and Avenues for Further Research5
Authors: Klimovský Daniel , Secinaro Silvana , Baláž Martina Benzoni , Brescia Valerio
Published: June 2024

Participatory budgeting was introduced in Latin America in 1989, and within 10 years, this innovation spread all over the world. At the same time, researchers outside Latin America showed a growing interest in the issue, resulting in more diversified research. A few scholars have already tried to provide comprehensive literature reviews; however, these efforts have had a narrow focus or have appeared as embedded parts of analyses of specific issues. This article aims to (1) identify recent worldwide research trends in participatory budgeting, (2) identify the most popular issues addressed by international research and (3) suggest avenues and subfields of further research. We employed bibliometric techniques to analyse articles published in journals that were indexed and abstracted in the Web of Science database from 2001 to 2020.
Selection, Isolation, and Identification of Entomopathogenic Bacteria and fungi against Spodoptera frugiperda J.E. Smith in Maize
Authors: Soesanto Loekas , Anik Leana Ni Wayan , Suroto Agus
Published: June 2024

Spodoptera frugiperda is one of the most devastation pests of maize. The control of S. frugiperda so far relies on synthetic pesticides, which can cause deleterious effects on the environments, especially when the insects start to exhibit resistance. The use of entomopathogenic bacteria and/or fungi could provide environmentally friendly alternatives in controlling S. frugiperda. Selections were started by collecting dead S. frugiperda larvae from several locations. These specimens were placed in PDA and NA media. The isolated bacteria and fungi were purified and individually tested on S. frugiperda larvae to determine the rates of mortality and feed consumption. This study employed a complete randomized design and trials were repeated three times. Results showed that Lia and Lib bacterial isolates produce mortality rates of 50% and 23.33%, respectively, on S. frugiperda larvae. Fungal isolates P1, P2, K2, and K3 produced mortality rates on S. frugiperda larvae in the range of 10-16.67%. The highest reduction of feed consumption was produced by K3 isolate at 34.16%. Lia, Lib, P1, P2, and K2 isolates decreased feed consumption at 14.77%, 26.87%, 24.02%, 33.18, and 31.14%, respectively. Molecular identifications showed that Lia and Lib isolates were Aeromonas hydrophila strain DUCC5728HX-3 and Acinetobacter soli strain GFJ2, respectively. This is the first report on entomopathogenic bacteria on S. fruguperda larvae. Fungal isolates K2, K3, P1, and P2 were identified to be Penicillium citrinum strain DUCC5728, Metarhizium rileyi strain 936, and Aspergillus flavus strain KU20018.4, respectively.
Harnessing Serratia marcescens: A Dual Role as Biocontrol Agent Against Fusarium oxysporum f.sp. melongenae and Heteroauxin Producer
Authors: Khalimi Khamdan , Pranatayana Ida Bagus Gde , Batin Charlie B
Published: June 2024

Pathogens and plant growth factors significantly influence plant growth and development. This study aims to investigate the potential of Serratia marcescens as a biocontrol agent against Fusarium oxysporum f.sp. melongenae and its capability as a heteroauxin producer. Antagonistic tests of S. marcescens against F. oxysporum f.sp. melongenae were conducted using a dual culture method, while the antifungal activity of S. marcescens extract was assessed through the disk diffusion method. Salkowski's colorimetric test was performed both in vitro and in situ to analyze heteroauxin compounds, further identified by GC-MS. Results demonstrated that all four tested S. marcescens strains could inhibit the growth of F. oxysporum f.sp. melongenae, with inhibition rates ranging from 93.76% to 94.02% compared to the control. These strains produced heteroauxin and its derivatives, including 3-methylindole, salicylic acid, and indole-3-acetic acid methyl ester, as confirmed by GC-MS. This study concludes that the examined S. marcescens strains are promising biocontrol agents and heteroauxin producers, highlighting their potential for sustainable agriculture practices.
Citra Digital Voice Recognition Menggunakan SVD
Authors: Mangngi Dominggus , Puka Putra Prawira Yohanes , Kaesmetan Yampi R.
Published: June 2024

Voice recognition is a crucial area in digital signal processing and artificial intelligence. In this research, we propose an innovative method for voice recognition using Singular Value Decomposition (SVD) on digital images. This approach aims to enhance the accuracy and efficiency of voice recognition by leveraging the image representation of sound generated through the SVD process. We integrate image processing techniques with machine learning-based voice recognition models to create a system capable of accurately identifying and distinguishing sound patterns. The proposed method is tested using various sound datasets covering a range of variations and conditions, and the experimental results demonstrate a significant improvement in voice recognition accuracy compared to conventional methods. Therefore, this approach shows promise as a significant contribution to the development of reliable and efficient voice recognition systems.
Keywords: Voice recognition, Digital images, Singular Value Decomposition (SVD), Machine learning, Voice recognition accuracy
Life and Survival Table of Trichogramma Atopovirilia Oatman & Platner (Hymenoptera: Trichogrammatidae) in Eggs of Anticarsia Gemmatalis Hübner (Lepidoptera: Noctuidae), Subjected to Three Food Sources
Authors: Piffer Ana Beatriz Mamedes , Oliveira Ana Carolina Lopes Francisco de , Pratissoli Dirceu , Oliveira Regiane Cristina de , Vianna Ulysses Rodrigues , Pancieri Guilherme Pratissoli
Published: June 2024

Objective: Aiming to evaluate the impact of pest management practices and different cultivation systems, the objective of this work was to evaluate the quality of Anticarsia gemmatalis eggs, fed with resistant or susceptible soybean leaves, on the Trichogramma atopovirilia fertility life table.
 
Method: A. gemmatalis eggs from resistant and susceptible soybean leaves were offered daily for parasitism by T. atopovirilia, in addition to an artificial diet until the death of the parasitoids. The average time of a generation (T), the net reproduction rate (Ro), the intrinsic rate of population growth (rm), the finite rate of population growth (λ) and the time required for the parasitoid population were evaluated. double the number of individuals (DT).
 
Results and Discussion: The life table was not affected by the food substrates used. The reproduction and development of T. atopovirilia in A. gemmatalis indicates        
 
Research Implications: In soybean cultivation, one of the main methods of managing insect pests is synthetic chemical insecticides. A sustainable management alternative is the use of natural enemies of pests. However, to compose integrated management programs it is important to know the behavior of the pest and the natural enemy, verifying their potential.
 
Originality/Value: This research contributes to the knowledge of the behavior of the predator T. atopovirilia on A. gemmatalis in soybean crops with resistant varieties, indicating the possible use of this organism to form part of the integrated pest management program in the aforementioned crop, promoting more sustainable agriculture.
Profil Penyesuaian Diri Pada Peserta Didik Kelas X SMA Negeri 8 Semarang
Authors: Tri Susilo Hesti Ningrum
Published: June 2024

Penelitian Profil Penyesuaian Diri pada Peserta Didik Kelas X SMA Negeri 8 Semarang ini dilatar belakangi masih terdapat siswa belum bisa menyesuaikan diri di lingkungan sekolah. Berdasarkan Analisis Kebutuhan Peserta Didik (AKPD) kelas X menunjukkan bahwa masih terdapat siswa yang belum mampu menyesuaikan diri dengan lingkungan sekolah baik itu menyesuaikan dengan pelajaran di sekolah, guru, maupun kesulitan dalam bergaul dengan teman sebayanya. Tujuan dari penelitian ini yakni untuk memahami profil penyesuaian diri pada peserta didik kelas X di SMA Negeri 8 Semarang.  Penelitian ini menerapkan pendekatan kuantitatif dan menggunakan metodelogi studi deskriptif. Adapun jumlah sampel penelitian ini yakni 260 siswa kelas X dengan teknik penghimpunan sampel menerapkan sampel jenuh. Perolehan penelitian memperlihatkan penyesuaian diri siswa di SMA Negeri 8 Semarang tahun ajaran 2023/2024 rata-rata berada pada kategori sedang dengan perolehan 40,38%, terdapat siswa dengan perolehan kategori sangat tinggi 1,92%, tinggi 38,07%, dan rendah 19,61 %.
Evaluating Cooling Coil Performance under Varying Operating Conditions
Authors: Talukder Swastika , Mukherjee Sanchayan , Samanta Spandan , Karmakar Manaswita , Roy Priyanshu
Published: June 2024

The present work deals with an experimental analysis of the performance of a direct expansion coil under various operating conditions. Behaviour of the cooling coil vis-àvis the input parameters and the psychrometric properties is assessed with the help of experimentation with changing ambient conditions and graphical presentation of the results. Results depict an optimum value of the by-pass factor indicating the best performance of the coil in both spring and summer. There is an upward trend of the by-pass factor with a gradual rise in the air temperature at different inlet openings. Dependence of the cooling coil performance on volume flow rate and climatic variation is found to be quite significant and needs to be kept in mind in practice.
Major Pandemics in the History of Mankind
Authors: Bharati Kaushik
Published: June 2024

Pandemics of gigantic proportions have afflicted humanity since antiquity. Various types of viruses, bacteria and other deadly pathogens have decimated populations across the globe over millennia. Bubonic plague is one such scourge that terrified millions of people once-upon-a-time. Many of the pandemics have died away over time, but some still persist. Cholera is one such pandemic that’s still smouldering. The current COVID-19 pandemic is still omnipresent and still creating havoc in many parts of the globe. Hence, it’s far from over and far from becoming “history”, which is why it hasn’t been dealt with here. Nevertheless, it has taught us to be ever vigilant and always be on our vanguard in case another catastrophic pandemic strikes. It’s not a question of “if”, it’s a question of “when”. It may come tomorrow, it may come next decade, or the next century. Only time will tell.
Science and Mysticism: Characteristic Features and Reconciliation
Authors: Bhar Gopal Chandra
Published: June 2024

The article tries to cover an elaborate analysis on widely discussed relations between science and mysticism. Similarities, dissimilarities and possible reconciliation have been pointed out both scientifically and philosophically. One cannot go without the other for perfection as rightly Einstein asserted, but morality forms the cornerstone for mysticism as causality is the basic guidance of scientific endeavour.
The Role of Ecotourism in Reducing Poverty and Unemployment: A Mixed Method Approach
Authors: Xaba Fikile , Adanlawo Eyitayo Francis , Nkomo Nomusa Yolanda
Published: June 2024

Ecotourism is perceived as a promising initiative capable of poverty alleviation and job creation. This study investigated whether ecotourism helps to alleviate poverty and unemployment in relatively underdeveloped areas such as the UMkhanyakude district municipality. The study used a parallel, convergent research design comprising qualitative and quantitative research applications. Both random and purposive sampling techniques were used to select a sample of 204. In selecting respondents for the quantitative dimension, two types of databases obtained from each of the local municipalities were used. The first database comprised community registers, and the second included a list of companies registered with the municipality’s supply chain or procurement unit. Specifically, the criteria used to select participants included expertise, understanding of ecotourism programme implementation processes, skills, and proximity to ecotourism projects. Four (n = 4) officials and four (n = 4) program managers, for a total of eight, were selected from each of the four local municipalities. This resulted in a combined purposive sample of 32 participants (8 x 4 = 32) for the interviews. The Statistical Package for the Social Sciences (SPSS) was employed to analyse quantitative data. The qualitative data were processed through the ATLAS TI application. From the results, it can be deduced that, to a greater extent, ecotourism is contributing towards the reduction of poverty and unemployment in UMkhanyakude District Municipality. Based on the results, it can be concluded that ecotourism has the potential to reduce poverty and unemployment in rural communities in line with the dimensions of sustainable development goals. Benchmarking activities that focus on community roles and responsibilities, awareness-building strategies at the community level, stakeholder consultation and involvement, and capacity-building programmes are recommended.
La crisis de los contenedores y el declive del poder de los Estados
Authors: Peña-Piñeros Andrea Catalina
Published: June 2024

El poder marítimo ha sido un factor determinante para aumentar, fortalecer y mantener el poder de los Estados, tanto desde perspectivas geopolíticas como geoeconómicas, favoreciendo el desarrollo y el nivel de vida de la sociedad. En particular, la crisis de los contenedores, acaecida a raíz de la pandemia del COVID 19, se ha presentado como un obstáculo al mantenimiento de mencionado poder, pues ha ralentizado el comercio mundial y disminuido las ganancias de los Estados que exportan, generando a su vez sobrecostos en la importación de productos. El presente ensayo demuestra que el comercio marítimo es un dinamizador del poder de los Estados y que la crisis de los contenedores ocasiona un declive de este. Para ello, se desarrolló una investigación descriptiva con enfoque cualitativo, basado en el análisis documental de fuentes secundarias que exponen la dinámica del comercio exterior en el marco de la crisis de los contenedores.
Experimental Observations on Film Cooling Effectiveness on Aerodynamic Heating in Hypersonic Flow
Authors: Sreekumar Jithin , Vamsi Krishna Talluri , Gupta Honhar , Ibrahim Sugarno Mohammed
Published: June 2024

An experimental campaign was carried out to examine the effectiveness of film cooling on aerodynamic heating at hypersonic velocities. A flat-faced cylindrical model was tested at flow velocity of 2.5 km/s in a hypersonic shock tunnel. The test model was equipped with temperature sensors for convective heat flux measurement. The coolant gas, nitrogen, was injected through a 2 mm orifice housed at the center of the test model at different pressure ratios. Two different flow regimes were observed, steady and unsteady, with the steady flowfield having overall reduction in heat transfer compared to the unsteady one.
Variaciones ortográficas en el español de Cuba
Authors:   Università degli Studi di Sassari ( Italia), Tacoronte Ariel Laurencio
Published: June 2024

Part of the lexical stock of the Cuban macrosystem of speech is still subject to spelling variation. This is because of various historical, etymological, morphological, phonological, or even connotative-affective reasons, which may condition the choice of the graphical output. A map of the current situation of orthographic variation in Cuban Spanish will be presented, taking into consideration the above-mentioned reasons. This work is part of a variational lexicography project of personal authorship that attempts to gather different elements that make up the Cuban diasystem.
Un último comentario «En el dudoso mar de las obras de don Luis de Góngora». Salcedo Coronel ante el Panegírico al duque de Lerma
Authors:   Universidad de Valladolid (España), Redruello Vidal Érika
Published: June 2024

Almost twenty years after editing the glosses on the Fábula de Polifemo y Galatea, the work that introduced him to the relevant discussion about Góngora’s lyrical poetry, Salcedo Coronel published the second part of the Obras de don Luis de Góngora comentadas, a f inal volume whose last pages included the Panegírico al duque de Lerma. This annotated edition helps to identify a model based on relevant works ascribed to the genre. Through this model, the Sevillian author improved and added certain determining characteristics to his first printed version.
Quality of life and clinical characteristics of renal transplant patients with and without chronic rhinosinusitis
Authors:   Unidad Médica de Alta Especialidad Hospital de Especialidades de Puebla, Centro Médico Nacional Gral. de Div. Manuel Ávila Camacho, Instituto Mexicano del Seguro Social, Puebla de Zaragoza, México., Andrade Clotilde , Flores Figueroa Josué Helí ,   Facultad de Medicina, Universidad Popular Autónoma del Estado de Puebla, Puebla de Zaragoza, México., García Galicia Arturo ,   Coordinación de proyectos especiales en salud del Instituto Mexicano del Seguro Social, Montiel Jarquín Alvaro ,   Médica especialista en Otorrinolaringología y Cirugía de Cabeza y Cuello, subespecialista en Otoneurología., López García Diana ,   Médico especialista en Otorrinolaringología y Cirugía de Cabeza y Cuello., Tapia Venancio Maricarmen ,   Medico general., Bertado Ramírez Nancy Rosalía ,   Médico especialista en Pediatría. Maestro en Ciencias Médicas e Investigación., Loria Castellanos Jorge ,   Médico especialista en Cirugía General. Maestro en Ciencias Médicas e Investigación.,   Médica especialista en Neurología.,   Médico especialista en Urgencias Médicas.
Published: June 2024

Introduction: Transplantation is the treatment of choice for patients with chronic kidney disease (CKD). It requires immunosuppression, which predisposes to the development of complications; chronic rhinosinusitis (CRS) is one of the most signi cant. Objective: To compare the characteristics of patients with CKD and without CRS in a renal transplant protocol at a specialized hospital in Puebla, Mexico. Methods: A comparative, cross-sectional, retrospective study in patients with CKD and in renal transplant protocol at a third-level care hospital. The SNOT-22 and Lund-Mackay scales were applied. Descriptive statistics, Mann-Whitney U tests, Fisher's exact test, and Phi coefficient were used; p<0.05 was considered signi cant.Results: 360 patients were recruited: 49 presented with CRS; prevalence: 13.61%; mean age: 39.22 ± 12.09 years and duration of progression: 17.73 ± 5.91 weeks. Naso-sinusal polyposis was present in 14.3%; nasal obstruction in 95.9%; facial pain in 67.3%; rhinorrhea in 49% and hyposmia/anosmia in 40.8%. Associated risk factors: allergy to acetylsalicylic acid (p=0.014) and atopy (p=0.000). Anatomical variants in patients with and without CRS, respectively: Agger nasi cell 95% and 15.4%; septal deviation, 50% and 6.4%; turbinate hypertrophy, 50% and 1.3%; concha bullosa, 30% and 4.2%; and paradoxical turbinate, 10% and 1.6%. The predominant quality of life impact in patients with and without CRS was moderate at 53.1% and mild at 97.1% (p=0.000). Conclusion: The prevalence of CRS was 13.61%; the associated risk factors were allergy to acetylsalicylic acid and atopy, and the predominant anatomical variant was Agger nasi. The tomographic severity was mild, and the impact on quality of life was moderate.
Hiperglicemia al ingreso hospitalario como predictor de mala evolución en pacientes hospitalizados por COVID-19
Authors:   Facultad de Medicina Humana, Universidad Ricardo Palma. Lima, Perú, Cuba Ticona Shellsy Laura , Indacochea Cáceda Sonia ,   Instituto de Investigaciones en Ciencias Biomédicas, Universidad Ricardo Palma. Lima, Perú
Published: June 2024

Introducción: La hiperglicemia al ingreso hospitalario podría ser una buena herramienta para predecir evolución desfavorable en pacientes con COVID-19. Objetivo: Determinar si la hiperglicemia al ingreso hospitalario constituye un factor pronóstico de evolución desfavorable. Métodos: Se realizó un estudio observacional, analítico, de cohorte retrospectivo en el Hospital Regional de Moquegua. Se revisaron de manera aleatoria historias clínicas de 640 pacientes hospitalizados con COVID-19 confirmado durante las primeras dos olas de la pandemia. Las variables incluyeron evolución desfavorable, secuelas respiratorias, ingreso a la Unidad de Cuidados Intensivos (UCI), y fallecimiento. La hiperglicemia al ingreso se definió como glicemia >140 mg/dL. Se realizaron análisis bivariados y multivariados utilizando modelos de regresión de Poisson con varianzas robustas para hallar el riesgo relativo crudo y ajustado (RRa) con sus respectivos IC95%. Resultados: El 36,9% tuvo 60 o más años, el 58,9% fue del sexo masculino y el 10,2% tuvo diabetes mellitus. El 34,7% de los pacientes presentaron hiperglicemia al ingreso. La hiperglicemia se asoció significativamente con una evolución desfavorable (RRa = 5,65; IC95%: 3,72-8,62; p < 0,001), secuelas respiratorias (RRa = 1,96; IC95%: 1,74-2,21; p < 0,001), ingreso a UCI (RRa = 3,68; IC95%: 2,03-6,69; p < 0,001), y fallecimiento (RRa = 1,57; IC95%: 1,22-2,02; p = 0,001). Conclusión: La hiperglicemia al ingreso es un factor pronóstico significativo para evolución desfavorable en pacientes con COVID-19. Es esencial monitorear cuidadosamente a estos pacientes.
Intracranial hemorrhage after thrombolytic therapy: a foreseeable complication?
Authors:   Instituto de Investigaciones en Ciencias Biomédicas, Melo Torres Junior Ernesto
Published: June 2024

Mr. Editor I am writing to highlight the growing concern regarding a severe complication of thrombolytic therapy, intracranial hemorrhage, and the need to identify associated risk factors. Considering the frequency of comorbidities in stroke patients worldwide, it is essential to provide a global perspective on this issue.
Maternal complications and adolescent pregnancy in Latin America: A systematic review and meta-analysis
Authors:   Universidad Ricardo Palma, Oviedo-Mendoza Maria A. , del Pilar Calsin Alvarado Maria Angelica , Rubín-De-Celis Verónica E.
Published: June 2024

Objective: To assess whether maternal complications are a risk in adolescent pregnancy in Latin America and the Caribbean during the period 2012 to 2021. Methods: A systematic search was carried out in 6 databases: PubMed, SCOPUS, Web of Science, EMBase, LILACS and Scielo. The articles included were from Latin American countries and had any of the following variables: preeclampsia, eclampsia, puerperal hemorrhage and puerperal sepsis published from 2012 to 2021 and comparing pregnant adolescents and adults. Articles that did not present separate findings from Latin America and/or the Caribbean, that the full version was not available, and that were focused on patients with a specific disease were excluded. For risk of bias, the Newcastle-Ottawa Scale Case-Control Studies was used. The summary measure used was the Odds Ratio with a 95% confidence interval for each study. Results: 4 studies were included. The risk of preeclampsia in pregnant adolescents and postpartum hemorrhage (OR = 0.86, 95% CI 0.74 – 0.99) were not evidenced (OR = 0.93, 95% CI 0.69 – 1.25). On the other hand, the risk of eclampsia (OR = 2.43, 95% CI 1.29 – 4.58) in pregnant adolescents was shown, but with high heterogeneity between studies (I2 = 76%). Conclusions: A risk of eclampsia was evidenced in pregnant adolescents, but not in preeclampsia nor postpartum hemorrhage. However, these results should be taken with caution. Protocol record: CRD42021286725 (PROSPERO) Keywords: pre-eclampsia, eclampsia, postpartum hemorrhage, Adolescent, Pregnant Women. (Source: MeSH NLM)
Global approach to the patient with diabetic foot: A review
Authors:   Universidad Autónoma de Barcelona. Barcelona, España, Viadé Julià Jordi , Longa López John C. , Nicolás Piera: Maria , Sabrià Leal Miquel , Lladó Vidal Melció , Muñoz De La Calle José Fernando , Madirolas Alonso Xavier , Sirvent Gonzàlez Marc , Riera Hernández Clàudia , Carrasco López Cristian , Pérez Andrés Ricard , Rodríguez Baeza Alfonso ,   Instituto de Investigación en Ciencias Biomédicas, Universidad Ricardo Palma. Lima, Perú,   Hospital Universitario Mútua de Terrassa. Barcelona, España,   Parc Hospitalari Martí Julià. Girona, España,   Hospital Universitario Son Espases. Palma de Mallorca, España,   Hospital General de Medellín. Medellín, Colombia,   Hospital General de Granollers. Barcelona, España,   Hospital Universitario Germans Trias i Pujol. Badalona, España.
Published: June 2024

Diabetic foot is one of the most prevalent and severe complications that can develop in patients with diabetes mellitus, presenting numerous clinical challenges due to the complexity of the lesions and the multiple associated comorbidities. Effective resolution of this condition requires coordinated participation from a multidisciplinary team of specialists, including endocrinologists, surgeons, orthopedists, and specialized nurses. The objective of this paper is to present the "System for the Evaluation and Treatment of Diabetic Foot" as an integral and user-friendly tool that facilitates the management of diabetic foot in various clinical settings, including primary care, hospitals, and emergency services. This system standardizes evaluation and treatment, enhances communication among professionals, and has demonstrated, over more than 20 years, a significant reduction in the number of amputations and an improvement in clinical outcomes for patients.
The role of the microbiome in the development, progression and treatment of cancer
Authors:   Instituto de Investigación en Ciencias Biomédicas, Facultad de Medicina Humana, Universidad Ricardo Palma. Lima, Perú, Callapiña De Paz Mariana , Marcos Carbajal Pool ,   Médico cirujano,   Magister en biología molecular
Published: June 2024

Se tiene conocimiento que existe gran variedad de poblaciones extensas y diversas de bacterias, virus y hongos ocupando cada superficie del cuerpo (1). Se estima que hay casi 30 trillones de células bacterianas viviendo dentro de cada ser humano, y existe una diversidad genética 100 veces más alta de las bacterias, lo que codifica capacidades metabólicas que influyen en su ecosistema microbiano y en el sistema inmunológico especifico del tejido del huésped (2). Estos microbios son conocidos de manera colectiva como la microbiota humana, mientras que el conjunto de microoganismos, genes y metabolitos que habitan un determinado lugar son conocidos como el microbioma (3).
A Quantitative Analysis of Microcirculation During Healing of Split-Thickness Skin Grafts in Standardized Full-Thickness Wounds
Authors: Krauß Sabrina , Illg Claudius , Held Manuel , Daigeler Adrien , Eisler Wiebke
Published: June 2024

Background. Full-thickness skin defects often are managed with split-thickness skin grafting. The wound healing process, including formation of new vessels during the healing of skin grafts, is complex. Objective. To evaluate the microcirculatory changes in the treated tissue after skin grafting to analyze perfusion dynamics during the wound healing process. Materials and Methods. Fourteen full-thickness skin defects were created on the back of 14 adult male Lewis rats. All wounds were treated with autologous split-thickness skin grafts. The perfusion dynamics were assessed for 84 days with an O2C device that combines a laser light to determine blood flow and white light to determine postcapillary SO2 and the rHb. Results. Blood flow increased for 50 days after grafting. SO2 decreased in superficial skin layers (depth of 2 mm) and increased in deep skin layers (depth of 8 mm) during the entire observation period. The rHb increased until day 10 in superficial layers and until day 20 in deep tissue layers. Conclusion. The microcirculatory changes reflect the different phases of wound healing. Long after the skin transplants were macroscopically healed, alterations in microcirculation were still detected. These alterations were caused by the long-lasting changes in tissue metabolism due to the formation, conversion, and degradation of the dermal matrix and vessels during wound healing and scar formation.
Shorinji Kempo Randori: Physiological analysis of West Kalimantan athletes in preparation for the National Sports Week (PON) qualifying rounds
Authors: Haetami Mimi , Ali Rizki Hazazi , Yunitaningrum Wiwik , Bafadal Muhammad Fachrurrozi
Published: June 2024

Background Problems: Physiological demands are very important in supporting both martial arts training and competition. Building on previous research exploring the physiological demands of competitive sports, this study delves into the specific characteristics of Shorinji Kempo athletes, particularly focusing on Randori. Research Objectives: This study aims to examine the physiological characteristics of shorinji kempo randori athletes in West Kalimantan Province, Indonesia. Methods: A descriptive study was conducted on 14 male athletes and 12 female athletes who served as samples in this study. Physiological characteristics are divided into anaerobic performance, which is represented by leg and arm power variables, which are measured using the vertical jump (cm) and medicine ball test (m) instruments, respectively. Then, for aerobic performance, maximum oxygen uptake, or VO2Max (ml/kg/min), is used, which is measured using the multi-level fitness test. This study used quantitative descriptive data analysis, which is seen from the average of each characteristic, both anaerobic and aerobic performance. Findings and Results: The results of the descriptive statistical calculations show the average score of each variable. Each variable is assessed by categorization, so the results are in good and poor categories for several variables. The t-test was conducted to see the difference in the average variables between genders. All variables show a significant difference between male and female athletes (p < 0.05). Furthermore, the results of the Pearson correlation indicated that there was a positive and significant relationship for each variable (p < 0.05). Conclusion: We suggest taking a lab-based test instead of a field test in order to gain more specific data about those physiological aspects. It is hoped that the results of this study can be used as a reference for trainers in creating programmes based on the physiological characteristics of sports and for contributing to the literature on Shorinji Kempo, especially on Randori.
Qu’est-ce qu’un discours populiste ?. Le cas du discours de déclaration de candidature d’Éric Zemmour
Authors: SINI Lorella
Published: June 2024

Dans cette étude, nous analysons le discours de déclaration de candidature d’Éric Zemmour aux élections présidentielles françaises de 2022. Nous identifions les traits discursifs caractéristiques des discours populistes que ces derniers partagent, bien souvent, avec ceux du discours d’extrême droite, tels que le rejet des élites, la désignation de boucs-émissaires, l’évocation de thèses complotistes ou la présentation de soi à travers un ethos charismatique. Mais, nous observerons ici en particulier comme relevant spécifiquement du discours populiste, la mise en scène cinématographique kitsch de la déclaration du candidat, l’excès de pathos, le syncrétisme idéologique ou la reprise de segments de phrases « sloganisés ».