cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Impact of Interlayer and Ferroelectric Materials on Charge Trapping during Endurance Fatigue of FeFET with TiN/HfxZr1-xO2/interlayer/Si (MFIS) Gate Structure
Creators: name: Tian, Fengbin
name: Zhao, Shujing
name: Xu, Hao
name: Xiang, Jinjuan
name: Li, Tingting
name: Xiong, Wenjuan
name: Duan, Jiahui
name: Chai, Junshuai
name: Han, Kai
name: Wang, Xiaolei
name: Wang, Wenwu
name: Ye, Tianchun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We study the impact of different interlayers and ferroelectric materials on charge trapping during the endurance fatigue of Si FeFET with TiN/HfxZr1-xO2/interlayer/Si (MFIS) gate stack. We have fabricated FeFET devices with different interlayers (SiO2 or SiON) and HfxZr1-xO2 materials (x=0.75, 0.6, 0.5), and directly extracted the charge trapping during endurance fatigue. We find that: 1) The introduction of the N element in the interlayer suppresses charge trapping and defect generation, and improves the endurance characteristics. 2) As the spontaneous polarization (Ps) of the HfxZr1-xO2 decreases from 25.9 μC/cm2 (Hf0.5Zr0.5O2) to 20.3 μC/cm2 (Hf0.6Zr0.4O2), the charge trapping behavior decreases, resulting in the slow degradation rate of memory window (MW) during program/erase cycling; in addition, when the Ps further decreases to 8.1 μC/cm2 (Hf0.75Zr0.25O2), the initial MW nearly disappears (only ~0.02 V). Thus, the reduction of Ps could improve endurance characteristics. On the contract, it can also reduce the MW. Our work helps design the MFIS gate stack to improve endurance characteristics.
description: 6 pages,12 figures
The reputation of horticulture - an internal view of the industry
Creators: name: Isaak, Marike
name: Brenneke, Iris
name: Lentz, Wolfgang
name: Isaak, Marike
name: Brenneke, Iris
name: Lentz, Wolfgang
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agricultural and Food Policy
subject: Institutional and Behavioral Economics
subject: reputation
subject: horticulture
subject: qualitative content analysis
subject: experts
subject: characteristics

description: The reputation of an industry represents an important strategic resource and this has already been highlighted in the past for the horticulture sector. However, the heterogeneity of horticulture makes it difficult for the industry to be perceived by society. An online survey was conducted to identify the most important characteristics of horticulture and to identify the reasons for its good or bad reputation. For this purpose, 102 experts – consultants from the horticultural industry – were asked to describe horticulture and the reputation of the industry. An evaluation of the survey, based on a qualitative content analysis using inductive category formation, indicated that horticulture is primarily associated with its diverse activities and various product groups. In terms of the product groups, the focus is on food products. The reputation of the industry is rated as ‘slightly positive’ on a 7-point Likert scale, with an average of 4.4.
Phase Dynamics in Intrinsic Josephson Junctions and its Electrodynamics
Creators: name: Lin, Shizeng
name: Hu, Xiao
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present a theoretical description of the phase dynamics and its corresponding electrodynamics in a stack of inductively coupled intrinsic Josephson junctions of layered high-$T_c$ superconductors in the absence of an external magnetic field. Depending on the spatial structure of the gauge invariant phase difference, the dynamic state is classified into: state with kink, state without kink, and state with solitons. It is revealed that in the state with phase kink, the plasma is coupled to the cavity and the plasma oscillation is enhanced. In contrast, in the state without kink, the plasma oscillation is weak. It points a way to enhance the radiation of electromagnetic from high-$T_c$ superconductors. We also perform numerical simulations to check the theory and a good agreement is achieved. The radiation pattern of the state with and without kink is calculated, which may serve as a fingerprint of the dynamic state realized by the system. At last, the power radiation of the state with solitons is calculated by simulations. The possible state realized in the recent experiments is discussed in the viewpoint of the theoretical description. The state with kink is important for applications including terahertz generators and amplifiers.
description: 14 pages, 13 figures
Universal Coding on Infinite Alphabets: Exponentially Decreasing Envelopes
Creators: name: Bontemps, Dominique
Publisher: name: arXiv
Year: 2008
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper deals with the problem of universal lossless coding on a countable infinite alphabet. It focuses on some classes of sources defined by an envelope condition on the marginal distribution, namely exponentially decreasing envelope classes with exponent $α$. The minimax redundancy of exponentially decreasing envelope classes is proved to be equivalent to $\frac{1}{4 α\log e} \log^2 n$. Then a coding strategy is proposed, with a Bayes redundancy equivalent to the maximin redundancy. At last, an adaptive algorithm is provided, whose redundancy is equivalent to the minimax redundancy
Radiation proctitis as a differential of lower GIT bleeding in Nigeria: A case series
Creators: name: Chukwudike, Evaristus
name: Nyam, David
name: Obasi, Emmanuel
name: Ogan, John
name: Nwoko, Chinenye
name: Onyia, Chinwe
name: Okonkwo, Kenechukwu
name: Abdulkareem, Lukman
name: Njideka, Winnifred
name: Egbo, Stella-Maris
name: Oziegbe, Egbo
name: Davwar, Pantong
Publisher: name: Nigerian Medical Journal
Year: 2025

description: Pelvic radiotherapy is an acceptable and promising treatment modality for various pelvic malignancies. However, it is associated with radiation-induced injury on surrounding structures with a preference for the rectum, which is characteristically fixed in the pelvic region. Acute radiation proctitis is usually self-limiting, but in its chronic form, it can be debilitating. Recent advances in radiation therapy have significantly reduced the prevalence of radiation proctitis (RP) in high-income countries, contrary to the findings in low and middle-income countries witnessing an increasing burden of radiation proctitis. This observation can be attributed to the increased availability of radiation therapies with limited use of novel technologies designed to reduce the detrimental effects of radiotherapy and improve the detection of RP owing to improvements in endoscopic services in developing countries. This is a highlight of the trends in the presentation of RP, management modalities in various tertiary centers in Nigeria, and the limitations in care occasioned by the non-availability of argon plasma coagulation (APC) as an effective treatment modality in most tertiary health facilities in Nigeria.
description: Nigerian Medical Journal, Vol. 66 No. 1 (2025): January - February
Electronic Raman scattering in non-centrosymmetric superconductors
Creators: name: Klam, Ludwig
name: Einzel, Dietrich
name: Manske, Dirk
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We formulate a theory for the polarization-dependence of the electronic (pair-breaking) Raman response for the recently discovered non-centrosymmetric superconductors in the clean limit at zero temperature. Possible applications include the systems CePt$_3$Si and Li$_2$Pd$_x$Pt$_{3-x}$B which reflect the two important classes of the involved spin-orbit coupling. We provide analytical expressions for the Raman vertices for these two classes and calculate the polarization dependence of the electronic spectra. We predict a two-peak structure and different power laws with respect to the unknown relative magnitude of the singlet and triplet contributions to the superconducting order parameter, revealing a large variety of characteristic fingerprints of the underlying condensate.
description: 4 pages, 4 figures
ASSIMILAÇÃO DE XENÓLITOS SILICÁTICOS POR MAGMAS CARBONATÍTICOS NO COMPLEXO DE JACUPIRANGA (SP)
Creators: name: Chmyz, Luanna
name: Ruberti, Excelso
Publisher: name: Zenodo
Year: 2021
Subjects: carbonatitos
assimilação
rochas ultramáficas

description: RESUMO – Apesar de seu caráter extremamente reativo, os principais processos de alteração atribuídos a magmas carbonatíticos sobre suas encaixantes crustais envolvem a atuação de um fluido aquoso (metassomatismo ou fenitização). Outros processos reacionais são considerados pouco significativos e desconsiderados na maioria dos modelos petrológicos. Neste projeto de pesquisa, buscou-se entender melhor os processos envolvidos nesta interação considerando o complexo de Jacupiranga (ca. 135-131 Ma, Cajati – SP), uma ocorrência carbonatítica clássica, como objeto de estudo. Nesta ocorrência, diferentes corpos de carbonatitos cálcicos e magnesianos são encontrados, todos intrusivos em no corpo clinopiroxenítico principal. O contato entre os carbonatitos cálcicos e a encaixante clinopiroxenítica é marcado por zonas de xenólitos, formadas por blocos de clinopiroxenito envolvidos por carbonatitos. Análises de química mineral (EPMA e LA-ICP-MS), aliadas a dados compilados da literatura, indicam que a assimilação desses xenólitos causou um aumento local da atividade de sílica no magma carbonatítico e teve um papel fundamental não somente na formação de rochas de reação como também na evolução do carbonatito de Jacupiranga. Reações esquemáticas indicam que o componente carbonatítico necessário para gerar as fases silicáticas dos diferentes domínios das rochas de reação aumenta progressivamente conforme a proximidade com o front carbonatítico. Deste modo, a atividade do fundido carbonatítico foi um fator determinante no controle da formação das rochas de reação (em detrimento de fluidos aquosos, por exemplo). Além disso, carbonatos e apatitas das rochas de reação apresentam assinaturas tipicamente primárias, ratificando que as reações na interface entre magma carbonatítico e clinopiroxenito ocorreram em um contexto dominante magmático. A caracterização de processos de assimilação de xenólitos da encaixante é inédita para o carbonatito desta ocorrência brasileira. Ao contrário dos modelos anteriormente propostos, que atribuem às rochas de reação de Jacupiranga uma origem exclusivamente relacionada a processos de fenitização, considera-se, neste trabalho, que o fundido carbonatítico é o principal agente responsável por sua gênese.
Rezension: Der Mensch, der Schreibmuskel, der Suchtfetzen
Creators: name: Lehnhart, Magdalena
Publisher: name: Medienimpulse
Year: 2016

description: 2014 stand der 20. Todestag Werner Schwabs (1958–1994) an und im Zuge dessen, stieg das öffentliche Interesse am Grazer Autor merkbar. Dieser Umstand war sowohl an den Spielplänen der Theater erkennbar, als auch an der ansteigenden Zahl der wissenschaftlichen Arbeiten zum Thema. Eine solide Sammlung von Interviews und Essays von Werner Schwab fehlte damals allerdings noch und liegt nun vor.
description: Medienimpulse, Bd. 54 Nr. 4 (2016): 4/2016 - Macht, Souveränität, Herrschaft
El depósito irregular de dinero: una aproximación teórica, histórica y ética
The legal nature of the monetary irregular-deposit contract: A theoretical, historical and ethical approach
Il deposito irregolare di moneta: Un'approssimazione teorica, storica ed etica
Creators: name: Hernandez Fradejas, Fernando <1986>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: IUS/04 Diritto commerciale

description: El análisis económico de las instituciones jurídicas ha adquirido una importancia considerable en los últimos años. Precisamente, el objetivo esencial de este trabajo se centra en el estudio  del análisis económico del contrato de depósito irregular de dinero mediante tres enfoques metodológicos diferentes. El primer capítulo de este trabajo analiza la naturaleza jurídica del contrato de depósito irregular de dinero, examinando las principales características respecto al contrato de préstamo o mutuo. Igualmente, este capítulo estudiará la lógica jurídica propia de ambas instituciones, y cómo los principios generales del derecho fueron descubiertos desde el derecho romano clásico. El segundo capítulo trata de analizar la historia de los hechos económicos y, en particular, el proceso histórico de la violación de los principios tradicionales del derecho en relación al contrato de depósito irregular de dinero. Por último, el capítulo tercero examina los distintos intentos doctrinales realizados para elaborar un nuevo tipo de contrato de depósito bancario de dinero, con el único objetivo de legitimar un sistema bancario con un coeficiente de caja de reserva fraccionaria.
description: The economic analysis of legal institutions has gained considerable importance in recent years. Indeed, the main objective of this work focuses on the study of the economic analysis of the monetary irregular-deposit contract by three different methodological approaches. Chapter 1 analyzes the legal nature of the monetary irregular-deposit contract, considering the main characteristics regarding the loan contract or mutuum. Also, this chapter will examine the juridical logic of both institutions, and how the general legal principles were discovered from classical Roman law. Chapter 2 tries to analyze the history of economic thought and, in particular, the historical process on the violation of general legal principles in relation to the monetary irregular-deposit contract. Finally, chapter 3 studies the various doctrinal attempts to develop a new type of monetary irregular-deposit contract, with the sole purpose of legitimizing a banking system under a fractional-reserve coefficient.
Correlates of Uptake of Routine Immunization amongst Under-Five Children: Comparison of Nomadic and Non-nomadic Fulani in Yobe State, Nigeria
Creators: name: Abdulhamid, Dauda
name: Ibrahim, Usman
name: Kofi, Boateng
name: Audu, Sunday
name: Wade, Mahdi
name: Danzomo, Abba
name: Muhammad, Nuruddeen
name: Faruk, Abdullahi
name: Ahmed, Salihu Abdullahi
name: Bawa, Jamilu Aliyu
name: Uba, Abdullahi Sadiq
name: Ismail, Tukur
name: Gajida, Awwal
name: Jibo, Abubakar
Publisher: name: Nigerian Medical Journal
Year: 2025

description: Background: Immunization is an important public health intervention that reduces morbidity and mortality associated with vaccine-preventable diseases (VPDs). This study aimed to determine and compare the correlates of routine immunization uptake among under-five children of nomadic and non-nomadic Fulani in Yobe State, Nigeria.

 

Methodology: A multistage sampling technique was used to study the eligible caregivers and under-five children in the selected households using an interviewer-administered questionnaire, observation for the child immunization card, or a recall of immunization history. Data were analysed using IBM SPSS version 22.0 with a statistical significance set at p≤5%.

 

Results: The response rate among nomadic and non-nomadic Fulani was (348/348, 100% vs. 345/348, 99%).The Penta 1 uptake based on routine immunization cards among nomadic and non-nomadic under-five children was (23.6% vs.76.4% P<0.001).Availability of the vaccine (adjusted odds ratio = 22, 95% confidence interval = 13.7–35.5), the purpose of vaccination (adjusted odds ratio = 1.9, 95% confidence interval = 1.1–3.4), vaccines safety (adjusted odds ratio = 17.3, 95% confidence interval = 10.0–29.8), and friendly healthcare workers (adjusted odds ratio = 18.8, 95% confidence interval = 11.3–31.3) were found to be independent predictors facilitating uptake of routine immunization among nomadic and non-nomadic under-five children, while long distance to the health facility (adjusted odds ratio = 9.6, 95% confidence interval = 6.6–14.0), lack of knowledge on immunization (adjusted odds ratio = 2.1, 95% confidence interval = 1.4–2.9), fear of side effect (adjusted odds ratio = 1.6, 95% confidence interval = 1.1–2.5), were independent barriers to uptake of routine immunization among nomad and non-nomadic under-five children.

 

Conclusions: Vaccine uptake is still a problem among nomads and non-nomadic under-five children. The government and relevant stakeholders should ensure a strategy for improved outreach services to all the nomads and hard-to-reach settlements.
description: Nigerian Medical Journal, Vol. 66 No. 1 (2025): January - February
Quality of Sexual Life and its Correlates among Men with Diabetes Mellitus and Erectile dysfunction attending a tertiary hospital in Owerri, Nigeria
Creators: name: Obi, Patrick Chinedu
name: Njoku, Ginikanwa Helga
name: Mbaike, Adaure Chibuzo
name: Ihim, Augustine Chinedu
name: Nwako, Okechukwu Francis
name: Anyanwu, Anthony Chinedu
name: Ohiri, John Uchechukwu
name: Nwazor, Ernest
name: Ubani, Blessing Chinenye
name: Ogbonna, Stanley Ugochukwu
name: Simon, Mafuka Johnson
name: Oputa, Reginald Nnamdi
Publisher: name: Nigerian Medical Journal
Year: 2025

description: Background: Erectile dysfunction (ED) is common among men with Diabetes mellitus (DM), with a negative impact on their sexual satisfaction. There is a paucity of data on this in our locality. Hence this study was to determine the quality of sexual life, its correlates and predictors among such men.

Methodology: One hundred diabetic men with ED as well as 100 without ED were recruited consecutively. Questionnaires were used to collect relevant information and assess their quality of sexual life. This was followed by a focused physical examination and anthropometric measurements. Blood samples were collected for relevant investigations. Data analysis was with SPSS version 25 while p-value < 0.05 was considered significant.

Result: Participants with ED had a mean IIEF-5 score of 11.97 ± 4.73 while those without ED had 24.06 ± 1.10 (p = 0.000). Among the DM participants with ED and those without ED, their mean SQoL-M scores were 44.14 ± 10.85% and 89.73 ± 16.23% respectively (p = 0.000). Correlation between SQoL-M scores and IIEF-5 scores showed (r = 0.374, p = 0.000) while that between SQoL-M scores and HbA1c showed (r = - 0.205, p = 0.040) in diabetic participants with ED. IIEF-5 scores and HbA1c levels were observed to be the only predictors of SQoL scores among diabetic participants with ED.

Conclusions: There is a significant difference in the quality of sexual life between diabetic men with ED and those without ED. While there is a positive correlation between SQoL-M and IIEF-5 scores, there is a negative correlation between SQoL-M scores and HbA1c levels among diabetic men with ED. IIEF-5 scores and HbA1c values are predictors of quality of sexual life among diabetic men with ED. Thus, there is a need for evaluation of quality of sexual life among diabetic men with ED. 
description: Nigerian Medical Journal, Vol. 66 No. 1 (2025): January - February
Probing gas kinematics and PDR structure around O-type stars in Sh 2-305 HII region
Creators: name: Bhadari, N. K.
name: Dewangan, L. K.
name: Zemlyanukha, P. M.
name: Ojha, D. K.
name: Zinchenko, I. I.
name: Sharma, Saurabh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report an observational study of the Galactic HII region Sh 2-305/S305 using the [CII] 158 $μ$m line data, which are used to examine the gas dynamics and structure of photodissociation regions. The integrated [CII] emission map at [39.4, 49.5] km s$^{-1}$ spatially traces two shell-like structures (i.e., inner and outer neutral shells) having a total mass of $\sim$565 M$_\odot$. The inner neutral shell encompasses an O9.5V star at its centre and has a compact ring-like appearance. However, the outer shell is seen with more extended and diffuse [CII] emission, hosting an O8.5V star at its centre and surrounds the inner neutral shell. The velocity channel maps and position-velocity diagrams confirm the presence of a compact [CII] shell embedded in the diffuse outer shell, and both the shells seem to expand with $v_{\rm exp}\sim$1.3 km s$^{-1}$. The outer shell appears to be older than the inner shell, hinting that these shells are formed sequentially. The [CII] profiles are examined toward S305, which are either double-peaked or blue-skewed and have the brighter redshifted component. The redshifted and blueshifted components spatially trace the inner and outer neutral shell geometry, respectively. The ionized, neutral, and molecular zones in S305 are seen adjacent to one another around the O-type stars. The regularly spaced dense molecular and dust clumps (mass $\sim$10-10$^{3}$ M$_{\odot}$) are investigated around the neutral shells, which might have originated due to gravitational instability in the shell of collected materials.
description: 16 pages, 8 figures, Accepted for publication in The Astrophysical Journal
A Case of Lacunar Stroke in a Patient with Possible Normal Pressure Hydrocephalus (NPH)
Creators: name: Fabiyi, Oluwatowo
name: Ogunlade, Samuel
Publisher: name: Nigerian Medical Journal
Year: 2025

description: Background: Normal pressure hydrocephalus (NPH) is a condition seen in the elderly, characterized by gait disturbances, urinary incontinence, and cognitive impairment. However, sudden onset neurological deficits suggest a vascular event rather than NPH.

 

Methodology: We report a case of a 65-year-old male who presented with sudden onset gait difficulty and speech impairment, initially suspected to be idiopathic NPH. The diagnostic process and management strategies are discussed.

 

Results: The patient's symptoms, including insidious gait difficulties, speech impairment, and memory loss, led to a suspected diagnosis of NPH. However, the sudden improvement of neurological deficits indicated a vascular cause. Computed Tomography (CT) imaging identified supporting evidence of a lacunar stroke, leading to a revised diagnosis.

 

Conclusion: This case highlights the importance of considering vascular events in the differential diagnosis of NPH, especially when sudden neurological deficits improve rapidly. Early identification and differentiation between NPH and vascular events are crucial for appropriate management, particularly in low-resource settings.
description: Nigerian Medical Journal, Vol. 66 No. 1 (2025): January - February
Editorial 4/2016: Macht, Souveränität, Herrschaft
Creators: name: Barberi, Alessandro
name: Swertz, Christian
Publisher: name: Medienimpulse
Year: 2017

description: Medienpädagogik wird häufig auf Vorstellungen einer souveränen oder emanzipierten Person bezogen, die sich insbesondere gegenüber bestehenden Macht- und Herrschaftsstrukturen behaupten und diesekritisch reflektieren kann. Dabei steht die Machtausübung mittels Medien – nicht zuletzt mittels Massenmedien – oft im Mittelpunkt. In diesem Zusammenhang stellt sich auch die Frage, welche Rolle Medien im Kontext von Macht, Souveränität und Herrschaft spielen. Deshalb hat sich die Redaktion der MEDIENIMPULSE entschieden, diesem Problemkreis eine eigene Schwerpunktausgabe zu widmen.
description: Medienimpulse, Bd. 54 Nr. 4 (2016): 4/2016 - Macht, Souveränität, Herrschaft
Evidence for powerful AGN winds at high redshift: Dynamics of galactic outflows in radio galaxies during the "Quasar Era"
Creators: name: Nesvadba, N. P. H.
name: Lehnert, M. D.
name: De Breuck, C.
name: Gilbert, A. M.
name: van Breugel, W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: AGN feedback now appears as an attractive mechanism to resolve some of the outstanding problems with the "standard" cosmological models, in particular those related to massive galaxies. To directly constrain how this may influence the formation of massive galaxies near the peak in the redshift distribution of powerful quasars, z~2, we present an analysis of the emission-line kinematics of 3 powerful radio galaxies at z~2-3 (HzRGs) based on rest-frame optical integral-field spectroscopy obtained with SINFONI on the VLT. HzRGs are among the most massive galaxies, so AGN feedback may have a particularly clear signature. We find evidence for bipolar outflows in all HzRGs, with kinetic energies that are equivalent to 0.2% of the rest-mass of the supermassive black hole. Velocity offsets in the outflows are ~800-1000 km s^-1 between the blueshifted and redshifted line emission, FWHMs ~1000 km s^-1 suggest strong turbulence. Ionized gas masses estimated from the Ha luminosity are of order 10^10 M_s, similar to the molecular gas content of HzRGs, underlining that these outflows may indicate a significant phase in the evolution of the host galaxy. The total energy release of ~10^60 erg during a dynamical time of ~10^7 yrs corresponds to about the binding energy of a massive galaxy. Geometry, timescales and energy injection rates of order 10% of the kinetic energy flux of the jet suggest that the outflows are most likely driven by the radio source. The global energy density release of ~10^57 erg s^-1 Mpc^-3 may also influence the subsequent evolution of the HzRG by enhancing the entropy and pressure in the surrounding halo and facilitating ram-pressure stripping of gas in satellite galaxies that may contribute to the subsequent mass assembly of the HzRG through low-dissipation "dry" mergers.
description: A&A in press, minor edits & typo in table captions 2-4
Is there Co-infection of Influenza and Covid-19 in Jos, North Central Nigeria?
Creators: name: Shehu, Nathan
name: Okolo, Mark
name: Ameh, Emmanuel
name: Thankgod, Daniel
name: Morenikeji, Oluwatoyin
name: Ogbaji, Ferdinand
name: Pam, Dung
name: Dami, Filibus
name: Luka, Pam
Publisher: name: Nigerian Medical Journal
Year: 2025

description: Background: Influenza virus and severe acute respiratory syndrome virus-2 (SARS CoV-2) are known to cause respiratory disease in humans that may be fatal. They have caused epidemics and constitute significant public health challenges because of their ability to spread and cause severe disease. Co-infection with both viruses has been shown to increase the odds of fatality among affected patients. Our study aimed to investigate co-infection with influenza among patients with coronavirus disease-2019 (COVID-19) in Jos, Plateau State.

 

Methodology: We carried out a cross-sectional study using stored nasopharyngeal and oropharyngeal samples of patients diagnosed with COVID-19 using GeneXpert. The samples were collected at our institution and stored at −80 °C. The samples were analysed for influenza co-infection using real-time reverse transcriptase polymerase chain reaction.

 

Results: Two-hundred-and-forty-one (241) stored samples of patients diagnosed with COVID-19 were analysed. None of the samples tested positive for the influenza virus.

 

Conclusion: We found no case of influenza and SARS-CoV-2 co-infection among the patients studied. This suggests that the prevalence of influenza virus infection may be low in our setting and partly explains the relatively benign outcome of SARS-CoV-2 infections in our region.
description: Nigerian Medical Journal, Vol. 66 No. 1 (2025): January - February
A Survey of Metal Lines at High-redshift (II) : SDSS Absorption Line Studies - OVI line density, space density and gas metallicity at z_abs ~ 3.0
Creators: name: Frank, S.
name: Mathur, S.
name: Pieri, M.
name: York, D. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have analysed a large data set of OVI absorber candidates found in the spectra of 3702 SDSS quasars, focusing on a subsample of 387 AGN sightlines with an average S/N>5.0, allowing for detection of absorbers above rest-frame equivalents widths W_r>0.19 A for the OVI 1032 A component. Accounting for random interlopers mimicking an OVI doublet, we derive for the first time a secure lower limit for the redshift number density $ΔN / Δz$ for redshifts z_abs>2.8. With extensive Monte Carlo simulations we quantify the losses of absorbers due to blending with the ubiquitous Lyman forest lines, and estimate the success rate of retrieving each individual candidate as a function of its redshift, the emission redshift of the quasar, the strength of the absorber and the measured S/N of the spectrum by modelling typical Ly forest spectra. These correction factors allow us to derive the 'incompleteness and S/N corrected' redshift number densities of OVI absorbers :$ΔN _{OVI, c} / Δz_{c} (2.8 < z < 3.2) = 4.6+-0.3, at 3.2 < z < 3.6 = 6.7+-0.8,and at 3.6 < z < 4.0 = 8.4+-2.9. We can place a secure lower limit for the contribution of OVI to the closure mass density at the redshifts probed here: $Ω_{OVI} (2.8 < z < 3.2) >1.9x10^{-8} h^-1. We show that the strong lines we probe account for over 65\% of the mass in the OVI absorbers; the weak absorbers, while dominant in line number density, do not contribute significantly to the mass density. Making a conservative assumption about the ionisation fraction, and adopting the Anders (1989) solar abundance values, we derive the mean metallicty of the gas probed in our search : $ζ(2.8 < z < 3.2) > 3.6 x 10^-4 h, in good agreement with other studies. These results demonstrate that large spectroscopic datasets such as SDSS can play an important role in QSO absorption line studies, in spite of the relatively low resolution.
description: 24 pages, 4 figures, 3 tables, accepted by AJ, follow-up paper to arXiv:0707.1700 with statistical analysis of absorber sample. Note the addition of M. Pieri as author. Substantially revised from earlier version
Embodied negation and levels of concreteness: A TMS Study on German and Italian language processing
Creators: name: Papitto, Giorgio
name: Lugli, Luisa
name: Borghi, Anna M.
name: Pellicano, Antonello
name: Binkofski, Ferdinand
Publisher: name: arXiv
Year: 2021
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: According to the embodied cognition perspective, linguistic negation may block the motor simulations induced by language processing. Transcranial magnetic stimulation (TMS) was applied to the left primary motor cortex (hand area) of monolingual Italian and German healthy participants during a rapid serial visual presentation of sentences from their own language. In these languages, the negative particle is located at the beginning and at the end of the sentence, respectively. The study investigated whether the interruption of the motor simulation processes, accounted for by reduced motor evoked potentials (MEPs), takes place similarly in two languages differing on the position of the negative marker. Different levels of sentence concreteness were also manipulated to investigate if negation exerts generalized effects or if it is affected by the semantic features of the sentence. Our findings indicate that negation acts as a block on motor representations, but independently from the language and words concreteness level.
description: 30 pages, 3 figures, 1 table, research paper
title: Front Matter, Table of Contents, Preface, Conference Organization
Creators: name: Golovach, Petr A.
name: Zehavi, Meirav
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2021
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Conference Organization
subject: Theory of computation → Parameterized complexity and exact algorithms

description: Front Matter, Table of Contents, Preface, Conference Organization
description: LIPIcs, Vol. 214, 16th International Symposium on Parameterized and Exact Computation (IPEC 2021), pages 0:i-0:xviii
Detection of Hot Gas in Galaxy Groups via the Sunyaev-Zel'dovich Effect
Creators: name: Moodley, K.
name: Warne, R.
name: Goheer, N.
name: Trac, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Motivated by the observed shortfall of baryons in the local universe, we investigate the ability of high resolution cosmic microwave background (CMB) experiments to detect hot gas in the outer regions of nearby group halos. We construct hot gas models with the gas in hydrostatic equilibrium with the dark matter and described by a polytropic equation of state. We also consider models that add entropy to the gas in line with constraints from X-ray observations. We calculate the thermal Sunyaev-Zel'dovich (SZ) signal in these halos and compare it to the anticipated sensitivities of forthcoming SZ survey experiments such as ACT, PLANCK and SPT. Using a multi-frequency Wiener filter we derive SZ detectability limits as a function of halo mass and redshift in the presence of galactic and extragalactic foregrounds and the CMB. We find that group-sized halos with virial masses below 1e14 M_solar can be detected at z < 0.05 with the threshold mass dropping to 3-4e13 M_solar at z < 0.01. The SZ distortion of nearby group-sized halos can thus be mapped out to the virial radius by these CMB experiments, beyond the sensitivity limits of X-ray observations. These measurements will provide a unique probe of hot gas in the outer regions of group halos, shedding insight into the local census of baryons and the injection of entropy into the intragroup medium from non-gravitational feedback.
description: 17 pages, 16 figures
Components of hunting mortality in ducks : a management analysis
Creators: name: Hochbaum, George Sutton
Publisher: name: University of British Columbia
Year: 2010

description: This study was conducted to evaluate waterfowl harvests on the Delta Marsh, Manitoba, under a variety of options utilizing a modified predator-prey model. The study involved monitoring of ducks and hunters to examine key components of waterfowl mortality. Seven hypotheses were formulated involving the relationships between duck vulnerability by species and hunter effort, factors determining effective bag size, hunter effort, effects of weather on kill, and whether or not hunters are selective. Aerial surveys and experimental hunts were conducted and kill statistics gathered on the Pasquia and Delta Marshes in Manitoba to evaluate predictions from the hypotheses. The analysis of field data revealed that duck vulnerability is negatively proportional to hunting effort and that ducks are most wary when hunter effort is greatest. Hunters were afield in largest numbers during periods of high duck density. Hunters did not shoot selectively and crippling losses approximated one-third of the birds shot. Weather had little influence on the kill; bird population size and hunter effort were more important determinants of hunter success. Distribution patterns of ducks were clumped relative to hunting areas, and the probability of mortality for an individual duck was observed to decrease with increasing flock size. Handling time per bird downed did not limit achieved bag size whereas time between encounters was found to be independent of population size and resulted in a non-linear, kill-density relationship. Field results were incorporated into the predator-prey model and management schemes involving population size, hunter effort, and season length were evaluated. Simulation results revealed that Mallard and Lesser Scaup harvest are not greatly affected by increased hunter effort and that season length and population size strongly influence harvest. Shortened seasons are recommended if kill reductions are desired for Mallard. Lesser Scaup require no special regulations whereas Canvasbacks require short seasons (less than 2 weeks) during times when populations exceed 5000. The predator-prey model is recommended for in-depth analysis of local regulations whereas multi-variate statistical models may be more useful in forecasting yields on a regional level.
Noncommutative resolutions of ADE fibered Calabi-Yau threefolds
Creators: name: Velez, Alexander Quintero
name: Boer, Alex
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 16G20, 14A22

description: In this paper we construct noncommutative resolutions of a certain class of Calabi-Yau threefolds studied by F. Cachazo, S. Katz and C. Vafa. The threefolds under consideration are fibered over a complex plane with the fibers being deformed Kleinian singularities. The construction is in terms of a noncommutative algebra introduced by V. Ginzburg, which we call the "N=1 ADE quiver algebra".
description: 20 pages; v3: published version -all preliminary material has been removed; Subsect. 3.1 has been rewritten and expanded and it is now presented as Sect. 1 in an attempt to translate many of the undefined terms in the physics literature in a precise way
On Clustering Categories of Categorical Predictors in Generalized Linear Models
Creators: name: Carrizosa, Emilio
name: Restrepo, Marcela Galvis
name: Morales, Dolores Romero
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We propose a method to reduce the complexity of Generalized Linear Models in the presence of categorical predictors. The traditional one-hot encoding, where each category is represented by a dummy variable, can be wasteful, difficult to interpret, and prone to overfitting, especially when dealing with high-cardinality categorical predictors. This paper addresses these challenges by finding a reduced representation of the categorical predictors by clustering their categories. This is done through a numerical method which aims to preserve (or even, improve) accuracy, while reducing the number of coefficients to be estimated for the categorical predictors. Thanks to its design, we are able to derive a proximity measure between categories of a categorical predictor that can be easily visualized. We illustrate the performance of our approach in real-world classification and count-data datasets where we see that clustering the categorical predictors reduces complexity substantially without harming accuracy.
The Gamma--Ray Burst catalog obtained with the Gamma Ray Burst Monitor aboard BeppoSAX
Creators: name: Frontera, F.
name: Guidorzi, C.
name: Montanari, E.
name: Rossi, F.
name: Costa, E.
name: Feroci, M.
name: Calura, F.
name: Rapisarda, M.
name: Amati, L.
name: Carturan, D.
name: Cinti, M. R.
name: Fiume, D. Dal
name: Nicastro, L.
name: Orlandini, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the catalog of Gamma--Ray Bursts (GRBs) detected with the Gamma Ray Burst Monitor aboard the BeppoSAX satellite. It includes 1082 GRBs with 40--700 keV fluences in the range from $1.3\times 10^{-7}$ to $4.5\times 10^{-4}$ erg cm$^{-2}$, and with 40--700 keV peak fluxes from $3.7\times 10^{-8}$ to $7.0\times 10^{-5}$ erg cm$^{-2}$s$^{-1}$. We report in the catalog some relevant parameters of each GRB and discuss the derived statistical properties.
description: 48 pages, 14 figures, 4 Tables. Accepted for publication in The Astrophysical Journal Supplement
Mitigation potential of carbon farming practices in Europe
Creators: name: Lesschen, Jan Peter
name: Svoboda, Adam
name: Larysch, Elena
name: Torrús Castillo, Milagros
name: Leifeld, Jens
Publisher: name: Zenodo
Year: 2025
Subjects: Carbon Farming
MRV

description: The MARVIC project is developing a context-specific MRV framework to encourage farmers to engage in carbon farming activities. Before starting a carbon farming project, farmers and advisors need to know which are the main beneficial carbon farming practices that deliver sufficient mitigation potential in their region. Also, for policymakers it is important to have information on the realistic mitigation potential of specific carbon farming practices, to develop appropriate policy instruments that will incentivise farmers in the uptake of these practices. In this webinar we present the results of our state-of-the-art literature review of carbon farming practices for arable land, grassland, orchards, agroforestry and peatlands and provide insights into the mitigation potential, the uncertainties, and co-benefits.
Rettende Dateninseln in der digital-pädagogischen Informationsflut
Creators: name: Pammer, Erich
Publisher: name: Medienimpulse
Year: 2018

description: Individualisierung zum Leben zu erwecken und überhaupt machbar werden zu lassen, ist mit herkömmlichen "händischen" Methoden oft nur sehr schwer zu erreichen. Der Grund ist, dass eine riesige Menge an Daten anfällt. Inhaltliche als auch Steuerdaten sind rein arbeitsmäßig in vertretbarer Zeit nicht zu schaffen. Genau das ist aber die Domäne der Informatik. Sie hilft riesige Datenmengen in relativ kurzer Zeit zu strukturieren und zu bearbeiten. E-Learning mit Big Data ist inzwischen mit vielen Softwareprogrammen leicht möglich. Eines davon ist das Lernprogramm Oriolus ( www.oriolus.de ), das – streng geschützt durch ein dreistufiges Sicherungssystem – fertige didaktische Übungen mitbringt und eingehende Diagnosen und Evaluierungen von Lernprozessen ermöglicht. Ausdrücklich sei betont, dass es aus medienpädagogischer Sicht notwendig ist, sich in die virtuelle Welt dieses didaktischen Programms zu begeben, um konkret zu erleben, was diese einfache Form eines ExpertInnensystems im Sinne der Künstlichen Intelligenz (KI) bereits möglich macht.
description: Medienimpulse, Bd. 56 Nr. 1 (2018): 1/2018 - Educational Data Mining und Learning Analytics
Integrable generalizations of Schrodinger maps and Heisenberg spin models from Hamiltonian flows of curves and surfaces
Creators: name: Anco, S. C.
name: Myrzakulov, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A moving frame formulation of non-stretching geometric curve flows in Euclidean space is used to derive a 1+1 dimensional hierarchy of integrable SO(3)-invariant vector models containing the Heisenberg ferromagnetic spin model as well as a model given by a spin-vector version of the mKdV equation. These models describe a geometric realization of the NLS hierarchy of soliton equations whose bi-Hamiltonian structure is shown to be encoded in the Frenet equations of the moving frame. This derivation yields an explicit bi-Hamiltonian structure, recursion operator, and constants of motion for each model in the hierarchy. A generalization of these results to geometric surface flows is presented, where the surfaces are non-stretching in one direction while stretching in all transverse directions. Through the Frenet equations of a moving frame, such surface flows are shown to encode a hierarchy of 2+1 dimensional integrable SO(3)-invariant vector models, along with their bi-Hamiltonian structure, recursion operator, and constants of motion, describing a geometric realization of 2+1 dimensional bi-Hamiltonian NLS and mKdV soliton equations. Based on the well-known equivalence between the Heisenberg model and the Schrodinger map equation in 1+1 dimensions, a geometrical formulation of these hierarchies of 1+1 and 2+1 vector models is given in terms of dynamical maps into the 2-sphere. In particular, this formulation yields a new integrable generalization of the Schrodinger map equation in 2+1 dimensions as well as a mKdV analog of this map equation corresponding to the mKdV spin model in 1+1 and 2+1 dimensions.
description: Published version with typos corrected. Significantly expanded version of a talk given by the first author at the 2008 BIRS workshop on "Geometric Flows in Mathematics and Physics"
Über "Bildung 4.0", "Schule 4.0" und andere Dinge, die keine Versionierung brauchen
Creators: name: Haller, Simon
Publisher: name: Medienimpulse
Year: 2018

description: Dieser Artikel bezieht sich auf die Podiumsdiskussion "Education 4.0? Between learning Bots and Users' Freedom. Is Digital Inclusion Desirable? [i] Anfang Dezember an der Universität Innsbruck. Beteiligt an dieser Diskussion um die Thematik "Schule 4.0" waren Martin Bauer, Nelson Gonçalves, Andrea Hemetsberger und Richard M. Stallman. Dieser Beitrag kommentiert die Podiumsdiskussion und bezieht Stellung aus Sicht eines Informatikers zu aktuellen Entwicklungen und Überlegungen im Schulbereich. Inhaltlich wird eine Zusammenfassung der Standpunkte der GastrednerInnen sowie eine Einschätzung des Autors zum Thema gegeben.
description: Medienimpulse, Bd. 56 Nr. 1 (2018): 1/2018 - Educational Data Mining und Learning Analytics
EnMcGAN: Adversarial Ensemble Learning for 3D Complete Renal Structures Segmentation
Creators: name: He, Yuting
name: Ge, Rongjun
name: Qi, Xiaoming
name: Yang, Guanyu
name: Chen, Yang
name: Kong, Youyong
name: Shu, Huazhong
name: Coatrieux, Jean-Louis
name: Li, Shuo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: 3D complete renal structures(CRS) segmentation targets on segmenting the kidneys, tumors, renal arteries and veins in one inference. Once successful, it will provide preoperative plans and intraoperative guidance for laparoscopic partial nephrectomy(LPN), playing a key role in the renal cancer treatment. However, no success has been reported in 3D CRS segmentation due to the complex shapes of renal structures, low contrast and large anatomical variation. In this study, we utilize the adversarial ensemble learning and propose Ensemble Multi-condition GAN(EnMcGAN) for 3D CRS segmentation for the first time. Its contribution is three-fold. 1)Inspired by windowing, we propose the multi-windowing committee which divides CTA image into multiple narrow windows with different window centers and widths enhancing the contrast for salient boundaries and soft tissues. And then, it builds an ensemble segmentation model on these narrow windows to fuse the segmentation superiorities and improve whole segmentation quality. 2)We propose the multi-condition GAN which equips the segmentation model with multiple discriminators to encourage the segmented structures meeting their real shape conditions, thus improving the shape feature extraction ability. 3)We propose the adversarial weighted ensemble module which uses the trained discriminators to evaluate the quality of segmented structures, and normalizes these evaluation scores for the ensemble weights directed at the input image, thus enhancing the ensemble results. 122 patients are enrolled in this study and the mean Dice coefficient of the renal structures achieves 84.6%. Extensive experiments with promising results on renal structures reveal powerful segmentation accuracy and great clinical significance in renal cancer treatment.
PHARMACOEPIDEMIOLOGICAL ANALYSIS OF THE PERFORMED CONSERVATIVE TREATMENT IN PATIENTS WITH CHOLELITHIASIS OF THE GERONTOLOGICAL GROUP OF THE FERGANA VALLEY
Creators: name: Salakhidinov, S.Z.
name: Mamasaliev, N.S.
name: Mamasaliev, Z.N.
name: Usmonov, B.U.
name: Umurzaqov, O.T.
Publisher: name: Zenodo
Year: 2025

description: According to the WHO, in the modern treatment and diagnostic process of cholelithiasis (CSD) it is important, especially in individuals of the gerontological group (75-90 years and above), not only to provide scientific information on a certain type of treatment (surgical or conservative) and clinical and fundamental recommendations, but also to acquire modern innovative technologies acceptable for preventive surgery and the ability to use them. For the advanced development of CSD surgery in the 21st century, it is important to identify the most susceptible individuals with high or very high risk for this pathology and their special prevention to ensure the process of early detection, effective and safe treatment (with proper pharmacovigilance, pharmacoepidemiological screening) and the prevention of not only CSD itself, but also formidable complications of cholecystectomy, cholecystostomy, choledochotomy, choledochomyotomy and transduodenal sphincteropapillotomy.