bluuebunny/crossref_metadata_2025 huggingface dataset:
Confronting The Challenges of Insecurity in Ondo State: The Role of Geospatial Surveillance and Mapping
Authors: Akingbade Adewale
Published: June 2022

The situation of insecurity in Nigeria has ignited different levels of government to form their security networks. One such effort was made by the Ondo State Government by creating Amotekun Security Network for Ondo State. This is to improve the security of life and property of people in the state. This was a result of the persistent siege laid by marauders on the highways and farms in the state. There is no doubt about the good intensions of the Governor which he has backed up with action in the inauguration of Amotekun Security Network for Ondo State. However, the trend of combatting crime and terrorism in this 21st century has gone more sophisticated to the extent that conventional security architecture has become grossly inadequate, thus the need to upgrade security architecture to the level whereby security system and the personnel can combat the crime and even nip it in the bud before attacks. This can only be possible by complementing the conventional structure with available geospatial apparatus for security surveillance in confronting the challenges of insecurity not only in Ondo State but Nigeria at large. This paper thus appraises the challenges of insecurity in Ondo State and the role of geospatial surveillance and mapping. The paper was based on a review of literature and qualitative technique of analysis. This paper was structured into background information about Ondo State, an overview of security challenges in Nigeria with attention on Ondo State, the take-off of Ondo State Security Network Agency called Amotekun, and highlights on geospatial technology solutions for security surveillance in confronting insecurity challenges. This paper thus concludes that insecurity in Ondo State and the entire Nigeria could be curbed if security network can be complemented with geospatial surveillance and mapping technique.
The Impact of Coronavrius on Health and Economic Growth in Sub- Sahara Africa
Authors: Azu Benedict , Ijieh Sunday Okubor , Shadrack Ifeanyi , Joel Iku
Published: June 2022

Health enhancement is an essential determinant of economic growth; though, the impact of health on economic growth is affected by the level of poverty in any country. This paper, therefore, examined the impact of health on economic growth during corona virus in Sub-Sharan Africa and the verge of health required to alleviate the adverse effect of poverty on economic growth in Twenty (20) selected Sub-Sharan Africa countries. Based on the endogenous growth theoretical approach, the link between life expectancy, poverty incidence, and economic growth was estimated using the GMM technique of analysis. Findings showed that coronavirus pandemic exerts negative impact on health condition, household welfare, unemployment and the adverse effect of poverty on economic growth in Nigeria. Though government expenditure significantly increased during the period in a bid to check the pandemic, but household welfare degenerated and was negatively affected with high poverty rate, this paper recommended that the government of the Sub-Saharan countries should diversify the revenue base of their economies to cushion the effect of unprecedented shock due to the pandemic and provide adequate relief materials to pad the effect of loss of income to the poor and vulnerable, invest in the health sector to control infectious and pandemic diseases.
Aboriginal Ancient Grand Bonny Kingdom of Niger Delta in the Framework of its Primordial House System of Governance and Natural Law towards Sustainable Development in the Kingdom
Authors: Bristol-Alagbariya Edward T.
Published: June 2022

The Primordial House System of Governance of Primaeval Niger Delta’s Bonny Kingdom, enhanced by natural law, features as the bedrock of the civilization and good governance (GG) in the Kingdom. The Primordial House System of Governance of Ancient Grand Bonny Kingdom (Ibanise), which is comprised of present-day Bonny Kingdom and Opobo Kingdom, was originated and institutionalized by the Founding Ancestors of the Ancient Kingdom, led by three hierarchical categories of paramount natural rulers of the three tiers of government of the Kingdom, during the Kingdom’s aboriginal era. The hierarchical categories are Ikpangi-Sibidapu (Institutionalized Lineage Heads), Amadapu (Community/District Heads and thus helpmates to Kings/Monarchs [Amanyanapu]), and Amanyanabo (owner of the land/King). The posts, positions or offices of these hierarchical categories, which have been in existence from time immemorial in Bonny Kingdom, are those of honour, traditional public service, trust, social responsibility and statesmanship, which were originated, systematized and institutionalized by the Founding Ancestors of the Kingdom towards the wellbeing of the people, Houses and entire Kingdom. This study employs socio-legal methodology to examine the Primordial House System of Bonny Kingdom and the role of natural law, namely proto-natural law, during the aboriginal era of the Kingdom, before Opobo Kingdom was established from it parent Bonny Kingdom, during the Kingdom’s Civil War of 1869/70. It discusses the premier natural rulers of aboriginal Bonny Kingdom, as well as four generations of Okoloama Ingie KiriFajie, namely Bonny Kingdom (Ibanise), comprised of Fourteen Lineages/Families/Houses. On this note, from a historiographical background, the study makes a case for GG, fair play, social justice and harmonious ways of life in Bonny Kingdom, based on the good, transparent, responsible and accountable stewardship of traditional rulers, towards the wellbeing of the people and sustainable development of the Kingdom, particularly in the realm of apex, peak or paramount traditional rulership of the three tiers of government of the Kingdom, namely the Lineage, Country-House and overall Kingdom-wide tiers of traditional governance in the Kingdom. Besides, this study demonstrates how the aboriginal era of Bonny Kingdom underscores the Kingdom as a classic African primordial sovereign state and civilization, as well as a pride of Ancestral Ijaw nation, which contributed to the development and advancement of Primaeval Niger Delta region and beyond.
Nationalism in the New World: An Assessment of Nigeria’s Nationalist Drive Towards Independence
Authors: Dele Ishaka
Published: June 2022

Nationalist movement in Nigeria or the Nigerian nationalism became formally felt after the end of British colonial rule within the country. The purposes of the movement were majorly to achieve both political and economic emancipation for the disparate groups who had come together courtesy of the amalgamation of the northern and southern protectorates in 1914, from the British colonialists. Its origin or early segment dates back to the 19th century wherein resistance struggles have been hooked up against the British penetration and activities in different territories that make up the modern-day Nigeria. This paper, consequently, examines the impacts of this movement on the actualization of Nigerian independence. A number of these affects, as discovered in this paper, have endured to bedevil the political environment of Nigeria in her efforts towards gaining political independence. Nigerians were very united in mobilizing all available resources to dislodge the colonialist that was the national enemy of the country without prejudice. It has been recommended among others that the resurgence of latest nationalist spirit in Nigerians within the face of the neocolonial global exploitations is a necessity and the battle for freedom needs to be won through the modern agents by the 21st century’s nationalists.
Electoral Violence in Nigeria’s Fourth Democratic Experience: A Survey of South-South Geo-Political Zone
Authors: Ita Victor E.
Published: June 2022

Incontestably, election constitutes the central process of instituting a government in any democratic system through the competitive vote of the electorate. This competition can either be peaceful as obtainable in most developed democracies, or it could be violent, as prevalent in most African States, including Nigeria. Since the return of civilian rule in 1999, the electoral process in Nigeria has been replete with violence as groups engage in the struggle to capture state power. This paper explored the prevalence of electoral violence in Nigeria between 1999 and 2019 with evidences from the South-South geo-political zone. Observably, the juiciness of political offices has raised the premium of politics such that competition for political power becomes ruthless and normless in Nigerian, thus making electoral contests akin to warfare in which lives and property are lost and destroyed. The paper ascribed the recurring and high level of political violence in the country to over-zealousness and desperation of political gladiators to win elections or remain in office at all cost. From the investigative and analytical outcome, the paper recommended, inter alia, a reduction in the financial attractiveness of political offices, handing down of stiffer penalties to perpetrators of electoral violence by the government so as to deter others from demonstrating such acts in the future as well as effectively educating the citizens on the dangers of electoral violence and its effects on democratic stability in the country.
Himalaea batanga, a new species from Southwest China (Lepidoptera: Noctuidae: Amphipyrinae: Psaphidini)
Authors: Saldaitis Aidas , Benedek Balázs , Volynkin Anton V.
Published: June 2022

A new species of the genus Himalaea Hreblay & L. Ronkay, 1998, Himalaea batanga sp. n. is described from western Sichuan Province of China. The new species is the second known member of the genus well different from the type species in both external and male genitalia morphology. Adults and male genitalia of both species of Himalaea are illustrated.
E-Lojistik Uygulamalarında E-Hizmet Kalitesinin, Alışveriş Memnuniyeti, Ödeme Seçenekleri ve Yeniden Satın Alma Niyeti Üzerindeki Etkileri
Authors: TÜRKMEN Mevhibe , SARICAN Mert Anıl
Published: June 2022

Günümüzün değişen iktisadi ve sosyal yapısı içerisinde rekabet avantajı elde etmek amacıyla işletmeler farklı metotlar incelemeye ve bu metotları kullanmaya başlamışlardır. Bu amaç doğrultusunda, işletmelerin başarıya ulaşabilmesi için kaynaklarını etkin ve verimli kullanması gerekmektedir. Bu noktada, işletmelerin verimliliklerini devam ettirebilmeleri için lojistik bilişim sistemlerine geçmeleri artık bir zorunluluk haline gelmiştir. Bu açıdan, araştırmanın temel konusu olan e-lojistik uygulamalarında e-hizmet kalitesinin, alışveriş memnuniyeti, yeniden satın alma niyeti ve ödeme seçenekleri üzerindeki etkisi bir model oluşturularak ölçülmeye çalışılmıştır. Çalışmanın ilk aşamasında; çalışmanın örnekleme tekniği ve veri toplama yöntemleri ile ilgili bir araştırma metodolojisi sunulmaktadır. Çalışmanın metodolojisi oluşturulduktan sonra araştırma ile ilgili istatistiksel analizler sunulmuş, teorik ve yönetsel çıkarımlar tartışılmıştır. Ayrıca çalışma kapsamında oluşturulan model, yapısal eşitlik modeli ile analiz edilmiş ve oluşturulan modelin geçerli bir model olduğu kanıtlanmaya çalışılmıştır. Modelin yapısal olarak uyumlu olduğu, veriler neticesinde anlaşıldıktan sonra çalışma bünyesinde oluşturulan hipotezler test edilmiştir. Çalışma kapsamında elde edilen hipotez sonuçları ve bulgulara göre; e-lojistik uygulamalarında hizmet kalitesinin alışveriş memnuniyetini olumlu ve anlamlı bir şekilde etkilediği tespit edilmiştir. Ayrıca alışveriş memnuniyeti ölçeği, yeniden satın alma ölçeğini olumlu ve anlamlı bir şekilde etkilemektedir. Buradan tüketicilerin gözünde hizmet kalitesinin artmasının alışveriş memnuniyetini beraberinde getirdiğini ve bunun sonucunda tüketicilerin ürünü veya hizmeti tekrar satın alma eğiliminde olduğunu varsaymak mümkündür.
A study on reaction between chloroformaldehyde and 𝒏 −butanol
Authors:   Department of Chemistry, Academy of Technology P.O. AEDCONAGAR, Adisaptagram, Dist. Hooghly 712121, W.B. India., Abhijit Mallick , Anindya Saha ,   Department of Chemistry, Academy of Technology P.O. AEDCONAGAR, Adisaptagram, Dist. Hooghly 712121, W.B. India.
Published: June 2022

The earlier study of the author (Mallick13) shows that chloroform reacts with nitric acid to form chloroformaldehyde. The objective of the present study is to investigate the nature of chemical reaction between chloroformaldehyde and n-butanol. Detailed investigation clearly indicates that chloride ion is formed during the chemical reaction between chloroformaldehyde and n-butanol. 1HNMR spectrum of the product does not show the characteristic peak of alcoholic −𝑂𝐻 group. On the basis of experimental studies and 1HNMR spectroscopy analysis, a probable mechanism is proposed to explain the reaction between chloroformaldehyde and n-butanol. The mechanism shows that n-butyl formate is formed during the reaction between chloroformaldehyde and n-butanol Keywords: Chloroform, Nitric acid, Chloroformaldehyde, 𝑛 −Butanol, Silver nitrate, 𝑛 −Butyl formate.
Espor Oyuncularının Sporcu Kimlikleri ile Etkili İletişim Düzeyleri Arasındaki İlişkinin İncelenmesi
Authors: KARAKUŞ Kaan
Published: June 2022

Bu çalışmanın amacı espor oyuncularının sporcu kimlikleri ile etkili iletişim düzeyleri arasındaki ilişkinin incelenmesidir. Çalışmanın örneklem grubunu 18 yaş ve üzeri 50 kadın 96 erkek espor oyuncusu oluşturmaktadır. Çalışmada veri toplama aracı olarak Sporcu Kimliği Ölçeği, Takım Sporlarında Etkili İletişim Ölçeği ve kişisel bilgi formu kullanılmıştır. Çalışmanın verileri SPSS 21.0 programı ile yapılmıştır. Verilerin analizinde parametrik testler kullanıldı. Analiz sonuçlarına göre cinsiyet, spor yaşı ve branşı değişkenleri bakımından sporcu kimliği ve etkili iletişim puanlarında istatistiksel olarak anlamlı farklılık görülmüştür. Gelir durumuna göre sporcu kimliği puanlarında anlamlı farklılık görülürken etkili iletişim puanlarında anlamlı farklılık görülmemiştir. Yaşa göre ise ölçek puanlarında anlamlı farklılık belirlenmemiştir. Sporcu kimliği ile etkili iletişim düzeyleri arasında pozitif yönlü ve orta düzeyli anlamlı ilişki tespit edilmiştir. Sonuç olarak espor oyuncularının kendilerini bir sporcu olarak gördükleri söylenebilir. Sporculuk kimliğine yaklaştıkça iletişim becerilerinin artabileceği düşünülmektedir.
Gondolatok a büntetőügyekben alkalmazható egyezségről
Authors: Szaktor György Roland , Turi András , Budaházi Árpád
Published: June 2022

Aim: This paper aims to show the reasons for the occasional use of the plea bargain, which has been in use for three years.Methodology: The authors conducted interviews with prosecutors, investigators, examiners, judges, and defense lawyers, reviewed publications on the legal instrument, and examined available statistical data on plea bargaining.Findings: Plea bargaining is an old and new legal instrument in the current Criminal Procedure Code. It is the predecessor of the former waiver of trial, which was rarely used by prosecutors despite repeated amendments to the law and thus failed to fulfill the hopes of speeding up criminal proceedings and reducing the burden on the courts. The new instrument, which is regulated differently from its predecessor, was expected to increase the frequency of use. The authors’ assumptions were confirmed, and the study provides statistical evidence of the infrequent use of the system: in 2020, only 0.0012% of indictments were based on plea bargaining. The reasons for the infrequent use of the system include the fact that in prosecutorial practice, the institution of the cooperating accused is used instead of plea bargaining, or an informal promise is made on the content of the charge if the suspect confesses. The institution would require more attention from the investigating authority, and the plea bargaining position is also difficult for the defense. The authors conclude that plea bargaining for statistical reasons alone is not a step in the right direction.Value: The paper could contribute to changes in the practice of legal practitioners and more frequent use of the legal instrument of conciliation. Monitoring changes could be the subject of other papers.
A gépjárművezetés közbeni mobiltelefonhasználat hatása a figyelemre
Authors: Juhász Anikó , Molnár Melinda Sára
Published: June 2022

Aim: Nowadays in our fast-moving world, road transport drivers tend to perform other activities that are important to them and require considerable mental capacity, such as communicating oral or written on technical tools, which are completely unrelated to driving. Distraction activities are generally prohibited by the legal system because of their risk-increasing character, but not entirely. The use of a hand-held mobile phone is prohibited, but the various headsets are not. The aim of this study is to investigate how safe it is to drive and talk on the mobile phone at the same time, and how it affects the driver’s attention.Methodology: Our study presents previous research about the relationship between phone use while driving and the occurrence of traffic accidents. The increasing number and range of services offered by on-board computers in vehicles, which are increasingly advanced, raises the question: Can the technological innovations reduce the frequency of road traffic accidents?Findings: From a road safety perspective, the most important negative effects of distraction and phone use are the cognitive impairments, which has been supported by a number of psychological studies. Although a driver may be capable of performing two activities, divided attention while driving can have serious consequences. In fact, there is evidence that talking on a mobile phone has a disturbing effect on the driver even after the conversation has ended. The outcome of a traffic situation also depends on the driver’s situational awareness.Value: Our findings provide a basis for pedagogical work in driver training and for the police’s activities in controlling and sanctioning infringements. Besides talking on the phone, future research will also be able to prove how dangerous the other used phone apps are to the car drivers while they are driving.
DETERMINATION OF VERTICAL DISPLACEMENTS OF INFRASTRUCTURE OBJECTS BASED ON THE RADAR INTERFEROMETRY DATA
Authors: Pakshyn Maksym , Liaska Ivan , Dorosh Liubov , Grytsyuk Tetyana , Gera Oksana
Published: June 2022

The aim of this paper is to determine the current capabilities of the radar interferometry methods and the expediency of their use for observations of the infrastructure vertical deformations on the example of the educational building of Ivano-Frankivsk National Technical University of Oil and Gas. Based on the obtained radar information, we were able to process an array of data for a short period using the method of Persistent Scatterers Interferometry (PS) (interferometry of constant reflectors of the radar signal). As a result, we determined the average velocity values of the vertical displacements of the university area. In order to establish the reliability of the results obtained by radar interferometry, the values of the structure displacements were measured according to the permanent station FRKV data, which operates in the IFNTUOG educational building №5. The results, based on both GNSS and radar interferometry methods, correlate and confirm the absence of significant deformation shifts of the construction.
The Wind Temperature and Mass-loss Rate of Arcturus (K1.5 III)
Authors: Harper Graham M. , Ayres Thomas R. , O’Gorman Eamon
Published: June 2022

In this paper we aim to constrain the wind temperature, outflow and turbulent velocities, ionization state, and mass-loss rate of the single red giant Arcturus (α Boo K1.5 III) using high spectral resolution Hubble Space Telescope Space Telescope Imaging Spectrograph profiles of Si iii 1206.5 Å , O i 1304 Å and 1306 Å, C ii 1334 Å and 1335 Å, and Mg ii h 2802 Å. The use of the E140-H setting for α Boo allows the Si iii 1206.5 Å line to be cleanly extracted from the echelle format for the first time. The ratios of the wind optical depths of lines from different species constrain the temperature at the base of the wind to T
wind ∼ 15,400 K. The mass-loss rate derived is 2.5 × 10−11

M

⊙

yr

−
1

for Epoch 2018–2019, smaller than previous semiempirical estimates. These results can be reconciled with multiwavelength Very Large Array radio continuum fluxes for Epoch 2011–2012 by increasing the temperature to T
wind ∼ 18,000 K, or increasing the mass-loss rate to 4.0 × 10−11

M

⊙

yr

−
1

. Interpreting the wind acceleration and turbulence in terms of a steady WKB Alfvén wave–driven wind reveals that the wave energy damping length increases with increasing radius, opposite to the trend expected for ion-neutral damping of monochromatic waves, confirming a previous result by Kuin and Ahmad derived for ζ Aur binaries. This implies that a spectrum of waves is required in this framework with wave periods in the range of hours to days, consistent with the photospheric granulation timescale. Constraints on a radial magnetic field (B) at 1.2 R
* are an upper limit of B ≤ 2 G from the implied wave heating, and B ≥ 0.3 G to avoid excessive wave amplitudes.
Multiband Detection of Repeating FRB 20180916B
Authors: Sand Ketan R. , Faber Jakob T. , Gajjar Vishal , Michilli Daniele , Andersen Bridget C , Joshi Bhal Chandra , Kudale Sanjay , Pilia Maura , Brzycki Bryan , Cassanelli Tomas , Croft Steve , Dey Biprateep , John Hoang , Leung Calvin , Mckinven Ryan , Ng Cherry , Pearlman Aaron B. , Petroff Emily , Price Danny C. , Siemion Andrew , Smith Kendrick , Tendulkar Shriharsh P.
Published: June 2022

We present a multiband study of FRB 20180916B, a repeating source with a 16.3 day periodicity. We report the detection of four, one, and seven bursts from observations spanning 3 days using the upgraded Giant Metrewave Radio Telescope (300–500 MHz), the Canadian Hydrogen Intensity Mapping Experiment (400–800 MHz) and the Green Bank Telescope (600–1000 MHz), respectively. We report the first ever detection of the source in the 800–1000 MHz range along with one of the widest instantaneous bandwidth detections (200 MHz) at lower frequencies. We identify 30 μs wide structures in one of the bursts at 800 MHz, making it the lowest frequency detection of such structures for this fast radio burst thus far. There is also a clear indication of high activity of the source at a higher frequency during earlier phases of the activity cycle. We identify a gradual decrease in the rotation measure over two years and no significant variations in the dispersion measure. We derive useful conclusions about progenitor scenarios, energy distribution, emission mechanisms, and variation of the downward drift rate of emission with frequency. Our results reinforce that multiband observations are an effective approach to study repeaters, and even one-off events, to better understand their varying activity and spectral anomalies.
Chromospheric Recurrent Jets in a Sunspot Group and Their Intergranular Origin
Authors: Zhao Jie , Su Jiangtao , Yang Xu , Li Hui , Schmieder Brigitte , Ahn Kwangsu , Cao Wenda
Published: June 2022

We report on high-resolution observations of recurrent fan-like jets by the Goode Solar Telescope in multiple wavelengths inside a sunspot group. The dynamics behavior of the jets is derived from the Hα line profiles. Quantitative values for one well-identified event have been obtained, showing a maximum projected velocity of 42 km s−1 and a Doppler shift of the order of 20 km s−1. The footpoints/roots of the jets have a lifted center on the Hα line profile compared to the quiet Sun, suggesting a long-lasting heating at these locations. The magnetic field between the small sunspots in the group shows a very high resolution pattern with parasitic polarities along the intergranular lanes accompanied by high-velocity converging flows (4 km s−1) in the photosphere. Magnetic cancellations between the opposite polarities are observed in the vicinity of the footpoints of the jets. Along the intergranular lanes horizontal magnetic field around 1000 G is generated impulsively. Overall, all the kinetic features at the different layers through the photosphere and chromosphere favor a convection-driven reconnection scenario for the recurrent fan-like jets and evidence a site of reconnection between the photosphere and chromosphere corresponding to the intergranular lanes.
Impact of Educational Leaflet Dissemination on University Students’ Knowledge, Attitude, and Practice toward COVID-19 in Indonesia
Authors: Sari Yelly Oktavia , Lailaturrahmi Lailaturrahmi , Permatasari Dita
Published: June 2022

The COVID-19 pandemic has become a public health problem at the global level. University students are expected to have positive knowledge, attitudes, and practice towards COVID-19, not only for themselves but also for their community. A pre-post study was conducted on undergraduate students at Universitas Andalas, Indonesia, in 2020 to explore the impact of an educational poster on university students’ knowledge, attitude, and practice towards COVID-19. An amount of 407 students participated in this study. Most of the participants were female (N=308; 75.68%), aged 20 years and above (N=251; 61.67%), and were non-health professional students (N=337; 82.80%). Female students had significantly better knowledge, while female and health sciences students had better preventive practice related to COVID-19. After the intervention, only attitude scores significantly differ from the pre-intervention score (p=0.004). However, the proportion of participants who had poorer practice was higher than the pre-intervention, although the number of participants who had practice improvement also increased. The educational leaflet significantly improves students’ attitudes, but not their knowledge and practice. Careful design of the educational method is needed to improve university students’ knowledge, attitude, and practice.
A new giant keelback slug of the genus Limax from the Balkans, described by citizen scientists
Authors: Schilthuizen Menno , Thompson Cameron , de Vries Rick , van Peursen Anthonie , Paterno Marta , Maestri Simone , Marcolongo Luca , Esposti Chiara , Delledonne Massimo , Njunjić Iva
Published: June 2022

Despite their large size, striking colouration and genital extravagance, the taxonomy of the European giant keelback slugs of the genus Limax is still poorly understood. Preliminary morphological and molecular data suggest that many unnamed or unrecognised species exist, especially in the Alps, the Mediterranean and the Balkans.

We organised a citizen science expedition to Durmitor National Park in Montenegro and discovered a new species, genetically distinct, but morphologically similar to the sympatric L. cinereoniger Wolf 1803 and describe it as L. pseudocinereoniger.
Serum biomarkers for pulmonary hypertension
Authors: Boneva Ts. , Ivanova R. , Zlatantcheva G. , Vasilev D. , Karamfiloff K.
Published: June 2022

In the fi eld of development of pathophysiology of pulmonary hypertension, there are growing number of signifi cant recent advances, which leads to new therapeutic agents. Traditional methods of diagnosing and monitoring this condition have comprised echocardiography and right heart catheterization, in addition to functional measures, such as estimation of functional class and the 6-min walk test. An increasing number of biomarkers have been described that are elevated in pulmonary hypertension and which may assist the clinician in diagnosis and in the assessment of disease severity and response to treatment.

 
Transcatheter aortic valve implantation via transaortic surgical access
Authors: Popova A. , Trendafilova D. , Jorgova J. , Petkov D. , Abedinov F. , Hristova T. , Ivanov S.
Published: June 2022

We report a case of an 80-years–old patient with a severe, symptomatic aortic valve stenosis and history of ischemic heart disease, previously treated by coronary artery bypass graft surgery. The patient was contraindicated for conventional surgical aortic valve replacement (SAVR) due to advanced age and underlying comorbidity, therefore transcatheter aortic valve implantation (TAVI) has been offered. The access options for the procedure were restricted by the underlying generalized atherosclerosis process causing peripheral vessel disease. We have chosen transaortic access for the patient which in that case was the only possible option. The transaortic valve implantation was successful with satisfactory hemodynamic results, improvement in functional class heart failure of the patient and preserving the function and anatomy of the coronary artery bypass graft. This case report demonstrates that the lack of favorable transfemoral access for TAVI should not be a limitation by itself for the procedure, rather than be stimulus for searching and using new and alternative access for it.
Kлиничен случай на преходна високостепенна митрална недостатъчност
Authors: Гацов П. , Велчев В. , Финков Б. , Стоянов Н.
Published: June 2022

Представяме случай на 80-годишна жена с исхемична болест на сърцето, която в продължение на няколко седмици преминава от състояние на високостепенна митрална регургитация в състояние на практически липсваща такава и обратно, без ясна връзка с клиничните ѝ оплаквания. Обсъждат се възможните диференциални диагнози и избраният терапевтичен подход към пациентката.
Lepisorus medioximus (Polypodiales, Polypodiaceae), a new species from Shan State of Myanmar
Authors: Fujiwara Tao , Khine Phyo Kay , Hori Kiyotaka , Shin Thant , Murakami Noriaki , Schneider Harald
Published: June 2022

A new species of the species-rich fern genus Lepisorus (Polypodiales, Polypodiaceae) has been found to occur in Shan state, Myanmar. Lepisorus medioximus is described based on morphological characters and phylogenetic evidence. Phylogenetic analyses showed that the specimens of L. medioximus formed a distinct clade nested in the Pseudovittaria clade. The morphological comparison demonstrated that the species is distinct from phylogenetically related species, namely L. elegans, L. contortus, and L. tosaensis, in the morphology of the rhizome scales, size, and shape of the lamina, position of sori, and paraphyses.
La démocratie à l’épreuve du populisme aux États-Unis
Authors: Boussac Tamara
Published: June 2022

Cet article replace les mutations récentes de la vie politique américaine dans le temps long afin d’expliquer la prégnance du discours populiste aux États-Unis. Il souligne que, si le populisme fait depuis longtemps pleinement partie de la culture politique de ce pays, ses formes contemporaines représentent plus que jamais une menace pour l’État de droit et les institutions démocratiques. Dans ce contexte, il devient de plus en plus difficile de distinguer populisme, complotisme et nationalisme.
La qualité des actions de formation professionnelle après les décrets n° 2019-564 et 2019-565
Authors: Guillon Stéphane
Published: June 2022

Alors que les deux décrets n° 2 019-564 et 565 donnent le cadre détaillé de l’évaluation de la qualité des actions de formation professionnelle en France, une large part des actions de conseil et d’accompagnement de Pôle emploi en faveur des chômeurs, qui semblent cependant participer du développement de compétences associées à l’employabilité et à l’adaptabilité à l’environnement économique, échappe à cette démarche : les prestations d’orientation professionnelle, de recherche d’emploi, de conseil et d’accompagnement soustraitées aux opérateurs privés.
« I don’t dance now, I make money moves » : formalisme et attitude dans « Bodak Yellow » de Cardi B
Authors: Parent Emmanuel
Published: June 2022

À partir d’une étude de cas d’un morceau de rap contemporain, le hit de Cardi B « Bodak Yellow » paru en 2017, cet article pose à nouveaux frais la question du contextualisme dans l’analyse des musiques africaines-américaines. Tout en s’inscrivant dans une logique de production d’un tube mainstream , la chanteuse Cardi B établit par phonogrammes interposés une relation dynamique avec les performances d’un autre musicien, le rappeur Kodak Black. Ce faisant, « Bodak Yellow » passe du statut d’œuvre phonographique close sur elle-même à celui de « talking tune », un trope cette fois typique de la culture vernaculaire africaine-américaine. En proposant une analyse de cette interaction située, cet article entend montrer que l’enracinement systématique de la performance musicale noire américaine dans un contexte ne disqualifie pour autant pas une approche formelle de la construction des sons. C’est même le contraire qui se passe, car dans la culture noire, la virtuosité est un enjeu majeur de la performance. Mais il importe, au travers de la connaissance ethnomusicologique de cette tradition, de réinscrire ce jeu musical formel dans un geste culturel – une « attitude » – qui lui confère son sens le plus plein, musicalement parlant.
Transparency in the transparency reports: Empirical evidence from Portugal
Authors: Almeida Bruno , Silva Ana Filipa , Viseu Clara Margarida
Published: June 2022

Purpose: The purpose of this research is to analyze the degree of TR transparency and its relation with the audit firm size, fees, either from audit services, or from other services, and with the human capital.Design/methodology/approach: In this study we considered 282 audit firms, and our final sample includes 268 transparency reports from 2013 through 2017. For this period under analysis, audit firms financial information, human resources information and transparency reports were collected. TR report information was divided in four types of information: Mandatory Information I, Mandatory Information II, Voluntary Information and Extra Information.  These indexes measure the fulfillment of each information on the total of information considered in each index. Firstly, a descriptive statistical analysis of the dataset was performed, for them to address the research questions, multivariate analysis was considered.Findings: Our results show a high level of transparency regarding mandatory information I, but a lower accomplishment regarding all other information. In general, the auditor experience, the number of auditors, the number of PIE clients and percentage of extra audit services have a significant impact on the information disclosed in the TR.Originality/value: Our paper contributes to the current literature by assessing the influence that human capital has on the information disclosed in the transparency reports. As far as the authors know, this an original contribution of the paper.
Analysis of Differences in Preterm Birth Rates According to Household Occupation in Japan From 2007 to 2019
Authors: Okui Tasuku , Nakashima Naoki
Published: June 2022

Objectives: No studies have examined the association between preterm birth rates and socioeconomic factors in Japan using nationwide statistical data. We analyzed the association between preterm birth rates and household occupation using Vital Statistics data.Methods: Aggregated Vital Statistics data from Japan from 2007 to 2019 were obtained from the Ministry of Health, Labour and Welfare. From the data, the number of births according to year, age group, gestational period, number of pregnancies, and household occupation were used in this study. Crude preterm birth rates and preterm birth rates adjusted by maternal age according to household occupation were calculated for each year. Poisson regression analysis was conducted to evaluate the association between household occupation and preterm births.Results: Unemployed households had the highest preterm birth rate, and households with an occupation classification of “full-time worker 2” (an employee at a large company, civil servant, or board member) had the lowest preterm birth rate throughout each period. Poisson regression analysis revealed that unemployed households were statistically significantly associated with a high preterm birth risk. In contrast, the preterm birth rate adjusted by maternal age remained stable throughout each period regardless of household occupation, and preterm birth rates were found not to have increased in recent years in Japan.Conclusions: Unemployed households had higher preterm birth rates than other household occupations. Further studies investigating the characteristics of unemployed households are needed to identify the reasons for this disparity.
Estrategias de subsistencia durante el Solutrense cantábrico: el caso del Abrigo de La Viña (La Manzaneda, Asturias)
Authors: Torres-Iglesias Leire , Marín-Arroyo Ana B. , De la Rasilla Marco
Published: June 2022

El Abrigo de La Viña es uno de los yacimientos claves para el estudio del Paleolítico Superior de la región cantábrica, debido a su larga secuencia arqueológica y a sus grafías parietales pre-magdalenienses. En este trabajo se presenta el estudio arqueozoológico y tafonómico de los restos faunísticos hallados en los niveles solutrenses del Sector Occidental. Los resultados muestran una explotación preferente del ciervo complementado con otras especies como grandes bóvidos, caballos y cápridos, sin evidenciar una especialización cinegética sobre ninguno de los taxones. El análisis tafonómico revela que los grupos humanos fueron los principales responsables de la acumulación ósea y aprovecharon de modo intensivo las carcasas. El método bayesiano, aplicado a los perfiles esqueléticos, sugiere que las carcasas de ciervo y cabra se trasladaron completas al yacimiento, en consonancia con el estudio de las áreas de captación de recursos bióticos y abióticos, que muestra una explotación del entorno más inmediato del abrigo.
Los recursos vegetales en la economía paleolítica y mesolítica: un estado de la cuestión en la península ibérica
Authors: Martínez Varea Carmen María
Published: June 2022

La explotación de los recursos cárnicos obtenidos mediante la caza ha centrado la atención de los estudios sobre la subsistencia durante el Paleolítico, mientras que la recolección de vegetales ha sido considerada secundaria. Este desequilibrio no responde a una realidad, sino que se trata de una visión sesgada consecuencia de cuestiones tafonómicas, metodológicas e ideológicas. La península ibérica es un escenario excepcional donde reflexionar sobre la utilización de los recursos vegetales por parte de los grupos cazadores-recolectores prehistóricos por la larga tradición investigadora en el Paleolítico y el dinamismo de la disciplina arqueobotánica. En este artículo se revisa la información disponible acerca de la recolección de vegetales desde el Paleolítico Inferior hasta el Mesolítico derivada de los estudios carpológicos. Los datos, aunque escasos en algunos períodos, permiten concluir que el uso de los recursos vegetales con múltiples fines (alimentación, materia prima, medicina) está presente desde el Paleolítico Inferior, si bien se observa cierta diversificación taxonómica y de los modos de consumo en el Paleolítico Superior y el Mesolítico.
Espacios y fuerzas sociales en el centro y el este de la península ibérica entre 2200 y 1550 ANE: una aproximación macroespacial
Authors: Peres Marcello , Risch Roberto
Published: June 2022

El escrutinio de más de 100 años de investigación arqueológica en el cuadrante centro-oriental de la península ibérica ha permitido documentar 1.445 asentamientos pertenecientes a la primera Edad del Bronce (c. 2200-1550 ANE). El presente trabajo utiliza la información sobre el emplazamiento, la extensión, la duración y la distribución geográfica de estos lugares de hábitat para identificar las dinámicas de poblamiento vigentes en un espacio de 177.444 km2 a lo largo de aproximadamente siete siglos. Este análisis pone de manifiesto que la distribución y la localización de los asentamientos fueron el resultado de estrategias sociales que pueden definirse como de “enrocamiento” y “atomización” de las comunidades, seguramente en un contexto de conflictos y violencia más o menos latentes. Las causas de esta situación sociopolítica –que resulta excepcional en el contexto del Bronce Antiguo de Europa y el Mediterráneo– se examinan a la luz de los profundos cambios ambientales y sociales identificados alrededor de los siglos XXIII y XVI ANE en muchas regiones de Europa y Próximo Oriente, así como en relación con el desarrollo expansivo y disruptivo de El Argar en el sudeste de la península ibérica.
Las implicaciones del desarrollo de la agricultura durante la Edad del Hierro en el norte de la península ibérica: el caso de la Peña del Castro (La Ercina, León, España)
Authors: González Gómez de Agüero Eduardo , Castañeira-Pérez Nuria , Herrero-Alonso Diego , Ruano Posada Lucía
Published: June 2022

Los trabajos arqueológicos realizados en la Peña del Castro documentaron cuatro fases de ocupación en este poblado desde la I Edad del Hierro hasta el Imperio Romano. El presente trabajo analiza la relevancia de la agricultura durante la tercera fase, desarrollada entre los siglos II-I a. C. De la misma se conservan carbonizados diferentes restos carpológicos junto a un completo conjunto de herramientas agropecuarias y molinos. Se han evaluado los diferentes procesos agrícolas, así como el impacto de la agricultura en la economía y sociedad del poblado durante los últimos momentos de la Edad del Hierro. Los restos carpológicos han sido identificados atendiendo a su morfología externa. Además, se ha acompañado el análisis macroscópico de restos de paredes de los edificios con otro tipológico de los materiales líticos y metálicos. Gracias a todos estos factores se ha definido una agricultura compleja con una importante influencia del área meseteña. Este modelo agrícola coincide con el momento de máximo desarrollo del asentamiento, junto con una creciente estratificación social, fenómenos relacionados con los excedentes agrícolas.
El sitio megalítico de La Torre-La Janera (Huelva): monumentalidades prehistóricas del Bajo Guadiana
Authors: Linares-Catela José Antonio , Mora Molina Coronada , López López Adara , Donaire Romero Teodosio , Vera-Rodríguez Juan Carlos , Bueno Ramírez Primitiva
Published: June 2022

Este trabajo tiene por objeto presentar el sitio megalítico de La Torre-La Janera, ubicado en el Bajo Guadiana (Huelva). Su investigación ha integrado varias técnicas de muestreo, análisis y documentación: prospecciones, geoarqueología, tecnologías de información geográfica y fotogrametría. Los resultados más destacados han sido: a) la constatación de una gran cantidad y variedad de megalitos (menhires, dólmenes, túmulos, cistas y recintos) de diferentes periodos crono-culturales construidos en grauvaca, parte de ellos novedosos en la zona; b) la presencia de monumentos que integran afloramientos como elementos arquitectónicos y simbólicos; c) la probable sincronía entre los menhires y las estructuras funerarias. Su investigación contribuye al avance del conocimiento del megalitismo en la península ibérica, abriendo futuras líneas de estudio, nuevas problemáticas y otras vías de interpretación sobre la génesis y complejidad de la monumentalidad prehistórica.
Biochemistry and Biotechnology of Algae
Authors: El-Chaghaby Ghadir Aly , Rashad Sayed
Published: June 2022

“Algae” represent a diverse group of photosynthetic organisms ranging from single cell to massive kelp that are found in all ecosystems on our planet. Algae play an essential role for life; they account for almost 50% of the photosynthesis activity on earth. The biochemical composition of algae includes a variety of high-value products such as pigments, lipids, carbohydrates, amino acids, and many other bioactive compounds. Algal biochemical compounds are variable among the different species and are highly dependent on the algal culture conditions such as temperature, nutrients, light, etc. In the recent years, algal biotechnological applications are on the spot. Algae are exploited for several biotechnological uses such as for biofuels, bio fertilizers, pharmaceuticals, nutraceuticals, bioremediators, and others. This chapter discusses the biochemistry and biotechnology of algae with emphasizing on the high-value biochemical algal compounds and trending algal biotechnological applications.
Physiology of Algae
Authors: Mishra Harshita , Pathak Ashutosh , Rao P. V. Subba , Kumar K. Suresh
Published: June 2022

Algae are a fascinatingly diverse group of photosynthetic organisms existing in diverse environments (ranging from oceans, rivers, lakes, ponds, and brackish waters). Comprising the base of the aquatic food ecosystem, algae have pivotal ecological functions as oxygen producers. Ranging in size from unicellular microalgae to the giant kelp, they have a wide range of (food, pharmaceutical, and industrial) applications. Physiology of algae comprises the study of algal function and behaviour. It encompasses all the dynamic processes of growth, metabolism, reproduction, defence, communication of algae (that account for algae being alive), and the processes underlying large biogeographical patterns of algae. Several biotic and abiotic environmental variables such as nutrients, light, temperature stress, salinity stress, desiccation, global warming, and ocean acidification affect algal growth and occurrence. This chapter provides a rudimentary insight regarding the growth, reproduction, and biochemistry of algae under varying environmental conditions.
Cultivation of Algae and Its Biorefinery Approach
Authors: Rahimi Mohammadhosein , Tajmirriahi Mina , Halim Ronald
Published: June 2022

During the past decades, algae have attracted worldwide attention as a sustainable bioresource to produce various biochemicals and biofuels. However, the prohibitive cost of algal biomass production and processing casts doubt on the industrial applications of algae. Hence, many efforts have been made to enhance the viability of these species. One serious challenge is maximizing algal biomass production. Since algal growth is strain-specific, the optimization of cultivation conditions (pH, illumination, temperature, and nutrients) can significantly tackle the problem of algal biomass production. Another way of reducing the production costs and enhancing the viability of algal biotechnology is the fractionation of all major components, known as a multi-product biorefinery. Various upstream and downstream processes are involved in an algae biorefinery. Therefore, having detailed knowledge about these bioprocesses and how to optimize them is a milestone for the commercialization of algae. Consequently, this chapter aims to provide an overview of algae cultivation methods and parameters affecting algae growth as well as different microalgae cultivation systems. Besides, it describes the bioprocesses involved in an algae biorefinery and their bioproducts.
Scaling Up and Harvesting of Algae
Authors: Hamouda Ragaa A. , Doleib Nada M. , Abuelmagd Muhammad A.
Published: June 2022

The scaling up and increment of the algal cultures cultivation process is a complex task that requires experienced staff. Some parameters such as biomass yield, biomass productivity, and specific growth should be calculated using the findings of laboratory scale that might be relevant for large-scale production as it provides a baseline to visualize and to verify production balance-related problems in the algal production system. The main goal of scale-up is to increase the production quantities with comparable or higher productivity and product quality. The harvesting process of the algal biomass represents a major hindrance in microalgae industry as it is approximately ranged from 20 to 30% of the total cost of the cultivation. There are many harvesting techniques such as physical, chemical, biological methods, and magnetic particle facilitated separation. This chapter has summarized the research progress in algal scaling up by optimizing different parameters such as light, temperature, nutrients, and strain selection.