bluuebunny/crossref_metadata_2025_split huggingface dataset:
Permutations of zero-sumsets in a finite vector space
Authors: Falcone Giovanni , Pavone Marco 
Published: December 2020

Abstract
In this paper, we consider a finite-dimensional vector space

𝒫

{{\mathcal{P}}}

over the Galois field

GF
⁡

(
p
)

{\operatorname{GF}(p)}

, with p being an odd prime, and the family

ℬ
k
x

{{\mathcal{B}}_{k}^{x}}

of all k-sets of elements of

𝒫

{\mathcal{P}}

summing up to a given element x. The main result of the paper is the characterization, for

x
=
0

{x=0}

, of the permutations of

𝒫

{\mathcal{P}}

inducing permutations of

ℬ
k
0

{{\mathcal{B}}_{k}^{0}}

as
the invertible linear mappings of the vector space

𝒫

{\mathcal{P}}

if p does not divide k, and as the invertible affinities of the affine space

𝒫

{\mathcal{P}}

if p divides k. The same question is answered also in the case where the elements of the k-sets are required to be all nonzero, and, in fact, the two cases prove to be intrinsically inseparable.
On a Lévy process pinned at random time
Authors: Erraoui Mohamed , Hilbert Astrid , Louriki Mohammed 
Published: December 2020

AbstractIn this paper, our first goal is to rigorously define a Lévy process pinned at random time. Our second task is to establish the Markov property with respect to its completed natural filtration and thus with respect to the usual augmentation of the latter. The resulting conclusion is the right-continuity of completed natural filtration. Certain examples of such process are considered.
HDAC8 promotes daunorubicin resistance of human acute myeloid leukemia cells via regulation of IL-6 and IL-8
Authors: Wu Jieying , Zhang Ling , Feng Yashu , Khadka Bijay , Fang Zhigang , Liu Jiajun 
Published: December 2020

Abstract
The chemoresistance is one of the major challenges for acute myeloid leukemia (AML) treatment. We found that the expression of histone deacetylase 8 (HDAC8) was increased in daunorubicin (DNR) resistant AML cells, while targeted inhibition of HDAC8 by its specific siRNA or inhibitor can restore sensitivity of DNR treatment . Further, targeted inhibition of HDAC8 can suppress expression of interleukin 6 (IL-6) and IL-8. While recombinant IL-6 (rIL-6) and rIL-8 can reverse si-HDAC8-resored DNR sensitivity of AML cells. Mechanistical study revealed that HDAC8 increased the expression of p65, one of key components of NF-κB complex, to promote the expression of IL-6 and IL-8. It might be due to that HDAC8 can directly bind with the promoter of p65 to increase its transcription and expression. Collectively, our data suggested that HDAC8 promotes DNR resistance of human AML cells via regulation of IL-6 and IL-8.
Homossexualidade, homoerotismo e género em O Filho de Mil Homens, de Valter Hugo Mãe
Authors: Nogueira Carlos 
Published: December 2020

Resumo
Neste artigo, discuto a presença e os enquadramentos técnicos e ideológicos dos problemas da homossexualidade, do homoerotismo e do género (masculino/feminino) no romance O Filho de Mil Homens (2011), do português Valter Hugo Mãe (1971). Convoco quer as principais teorias que propõem explicações para a homossexualidade e a identidade de género quer as visões de alguns autores que, não filiados em nenhuma teoria, escreveram sobre o tema, como Michel Foucault, John Thorp ou Judith Butler.
Epifanía y escatología en la poética de Octavio Paz
Authors: Meléndez-Guerrero Luis Gustavo 
Published: December 2020

Resumen
Los estudios sobre el hecho epifánico elaborados dentro de la tradición literaria moderna muestran, a nuestro parecer, una tendencia a presentar el sentido de la epifanía bajo los límites de la conceptualización técnica, dejando como elemento secundario el papel fenomenológico que la epifanía poética lleva en su entraña. A continuación, presentaremos un panorama general que ejemplifique el modo en que la epifanía poética ha sido definida por la teoría literaria. En un segundo momento abordaremos la manera en que Octavio Paz entiende y presenta la epifanía en su obra, para finalmente, ofrecer una lectura que nos permita plantear la posibilidad de una condición escatológica en la epifanía poética.
Una teoría para el análisis de la naturaleza de factores intervinientes en la formación y evolución de los dúos literarios
Authors: Rimoldi Lucas , Monchietti Alicia 
Published: December 2020

Resumen
Este estudio de carácter teórico analiza la naturaleza de los factores intervinientes en la formación y evolución de los dúos literarios. Al inicio de la escritura a dúo hay una fascinación por algo que creemos tiene el otro y nos puede aportar, y sus dos valores fundamentales son la habilitación de temáticas ajenas a los escritores en términos de individualidad y el disfrute que provoca su ejercicio. La teoría esferológica de Peter Sloterdijk nos permite ver los dúos como esferas insufladas de simpatía y afinidad de creencias y esfuerzos, que habilitan la atribución y distribución de una identidad común y una resonancia fantasmática que alimenta el quehacer creativo. Esta modalidad tensa el yo autoral en el sentido de estiramiento o elongación, puede mejorar la escritura de cada autor único, mientras que su escollo más frecuente deriva de la tentación de convertirse en el autor principal. Esto se manifiesta usualmente en las etapas de distribución y recepción de la obra y hace evidente el aspecto ético de la práctica.
Abatement of formaldehyde with photocatalytic and catalytic oxidation: a review
Authors: Soni Vipin , Goel Varun , Singh Paramvir , Garg Alok 
Published: December 2020

AbstractFormaldehyde is one of the vital chemicals produced by industries, transports, and domestic products. Formaldehyde emissions adversely affect human health and it is well known for causing irritation and nasal tumors. The major aim of the modern indoor formaldehyde control study is in view of energy capacity, product selectivity, security, and durability for efficient removal of formaldehyde. The two important methods to control this harmful chemical in the indoor environments are photocatalytic oxidation and catalytic oxidation with noble metals and transition metal oxides. By harmonizing different traditional photocatalytic and catalytic oxidation technologies that have been evolved already, here we give a review of previously developed efforts to degrade indoor formaldehyde. The major concern in this article is based on getting the degradation of formaldehyde at ambient temperature. In this article, different aspects of these two methods with their merits and demerits are discussed. The possible effects of operating parameters like preparation methods, support, the effect of light intensity in photocatalytic oxidation, relative humidity, etc. have been discussed comprehensively.
Performance analysis of shunt active filter for harmonic compensation under various non-linear loads
Authors: Puhan Pratap Sekhar , Ray Pravat Kumar , Pottapinjara Srikinta 
Published: December 2020

Abstract
This paper shows the motivation towards the development of a dq-Proportional Resonant (PR) control strategy in shunt active power filter design for eliminations of distortions in source currents for different loading conditions. The switching signals for the inverter of shunt active power filter (APF) have been generated by the hysteresis current control scheme. The controller performance has been verified by using different types of loads such as non-linear balanced, unbalanced and variable etc., with the system in MATLAB/Simulink environment. An experimental prototype has also been developed in the laboratory and results are analyzed to validate the efficacy of the proposed controller.
Characterization of sheep tail fat dry fractionation at the pilot scale
Authors: Hou Chengli , Wang Zhenyu , Zhao Mengya , Tian Xueke , Shen Qingwu , Zhang Dequan 
Published: December 2020

Abstract
Two-step dry fractionation was employed to prepare the liquefied sheep tail oil at the pilot scale. Sheep tail oil was separated into fat residuals, crude oil, stearin A, stearin B, olein A, and olein B. The extracted rates for crude oil, olein A, and olein B were 66.7, 45.9, and 35.0%, respectively. The ratios of saturated/unsaturated fats in the crude oil, olein A fractions, and olein B fractions were 0.62, 0.63, and 0.60, respectively. The olein B was liquid at ambient temperature and its melting point was 5.32 °C. The iodine values of stearin samples were significantly decreased compared to the crude oil samples (P < 0.05). For the stearin fractions, the polymorphic form was mainly β’ form, and the solid fat content was significantly higher than the olein fractions (P < 0.05), which can be used to make the shortening product.
A caring model for nursing education
Authors: Hayne Arlene N. , Schlosser Sharron P. , McDaniel Gretchen S. 
Published: December 2020

Abstract
With the many changes occurring within the health system and nursing education, ongoing shortages in the number of nurses and nursing faculty, increased incidences of incivility, and the charge to transform nursing education while upholding and transmitting the core professional values, a better understanding of the climate within nursing education is warranted. Caring is a core value of the profession of nursing and has received much attention and study, primarily in the practice setting. In nursing education much of this work has centered on the structure and processes of nursing education and the nursing student’s development of caring behaviors. This article proposes a caring model for nursing education that integrates the key concepts of organizational climate, leadership, and caring theories. The intent of the model is to provide a framework that can be used for professional nursing education that incorporates the core value of caring and develops graduates prepared to provide relationship-based, patient-centered care.
Historical Consciousness and Transitional Justice in Post-War Sri Lanka
Authors: Dewasiri Nirmal 
Published: December 2020

Abstract
Historical consciousness is a decisive factor in Sri Lanka with regards to the relationships between Sinhala and Tamil ethnic communities. It functioned as a great divide between these two communities. It was also used as a “charter of right” in order to impose one community’s claim on the other. This has become increasingly problematic in the post-war context after the violent hostilities between the Sri Lankan state and Tamil insurgents ended in 2009. Sinhala-Buddhists, who were politically dominant and identify themselves as the legitimate possessor of the island, desire to consolidate their dominance in the Tamil North and reckon historical knowledge as an effective tool for that end. The historical narrative that Sinhala Buddhists endorsed beginning in the early 20th century proved to be insufficient in countering the rising power of a Tamil counter narrative. Attempts have been made since the mid-1980s to produce a new historical narrative that is capable of challenging Tamil political claims. Although this effort was not fully successful, partial success was achieved during and after the war between the Sinhala dominated state and Tamil insurgents. The new historical consciousness that emerged out of this process proved to be extremely problematic in the context of the growing need for transitional justice for the war-affected Tamils in the North.
Josephus’ Nabataeans: a vision of Roman power in the Near East
Authors: Accettola Anna 
Published: December 2020

AbstractNabataean history is significantly overlooked in the works of ancient historians. Josephus is an exception to this, as he includes several important events from Nabataean history inDe Bello JudaicoandAntiquitates Judaicae. However, his retelling of these events differs between the two works. In this paper, I argue that Josephus became more “pro-Roman” over time and eventually overshadowed an accurate portrayal of Nabataean history in his later narrative. He undermined moments of tension between Rome and Nabataea in order to showcase Roman power in the Near East, even beyond reality. In support of this argument, I analyze the Nabataean sections of Josephus’ works, as each passage has overlapping details, but significantly different emphasis, characterization, and perspective through variations in terminology, imagery, and tone. Though problematic, Josephus has preserved a unique look into Roman-Nabataean relations in the two centuries prior to the incorporation of Nabataea into the Empire.
Instruments with Heterogeneous Effects: Bias, Monotonicity, and Localness
Authors: Huntington-Klein Nick 
Published: December 2020

Abstract
In Instrumental Variables (IV) estimation, the effect of an instrument on an endogenous variable may vary across the sample. In this case, IV produces a local average treatment effect (LATE), and if monotonicity does not hold, then no effect of interest is identified. In this paper, I calculate the weighted average of treatment effects that is identified under general first-stage effect heterogeneity, which is generally not the average treatment effect among those affected by the instrument. I then describe a simple set of data-driven approaches to modeling variation in the effect of the instrument. These approaches identify a Super-Local Average Treatment Effect (SLATE) that weights treatment effects by the corresponding instrument effect more heavily than LATE. Even when first-stage heterogeneity is poorly modeled, these approaches considerably reduce the impact of small-sample bias compared to standard IV and unbiased weak-instrument IV methods, and can also make results more robust to violations of monotonicity. In application to a published study with a strong instrument, the preferred approach reduces error by about 19% in small (N ≈ 1, 000) subsamples, and by about 13% in larger (N ≈ 33, 000) subsamples.
Effect of Copper Electrode Geometry on Electrofreezing of the Phase-Change Material CaCl2·6H2O
Authors: Swandi Ahmad , Rahman Annisa , Putri Risky Afandi , Anggraini Radhiah , Kurnia Daniel , Wonorahardjo Surjamanto , Sutjahja Inge Magdalena 
Published: December 2020

Abstract
The development of effective active thermal energy storage systems requires an understanding of how electrode geometry affects the electrofreezing process. This study aimed to observe the nucleation behavior of an inorganic phase-change material, CaCl2·6H2O, using a DC electric field and various copper electrode geometries. The effects of both the electrode diameter (

d
=
0.5

d=0.5

and 0.7 mm) and the tip shape (flat and sharp end surfaces) were investigated. Data analysis was performed to reveal the nucleation temperature, freezing temperature, supercooling degree, supercooling time, and crystallization time period. The copper electrode with the larger diameter was found to result in a higher nucleation temperature, a smaller supercooling degree, faster nucleation, and a shorter crystallization time period. Moreover, changing from a flat tip to a sharp tip decreased the nucleation temperature and increased the supercooling degree. This study showed that the electrode geometry plays an important role in the phase-change behavior of CaCl2·6H2O.
Evolution of optical networks: from legacy networks to next-generation networks
Authors: Al-Tarawneh Luae , Alqatawneh Ali , Tahat Ashraf , Saraereh Omar 
Published: December 2020

Abstract
The requirement for the huge bandwidth-demanding applications has urged researchers to develop improved data pipes that could allow smooth data flow. Revolutionary growth has been witnessed in the domain of the telecommunication industry, which has opened new horizons for connectivity among humans and devices alike especially, in the era of 5G. The advancement from TDM multiplexed signal transmitted over copper wire to the flexible and smart grid along with ethernet passive optical networks or space division multiplexed over optic fiber introducing enormous speed in 100 of Gbps has contributed to the fastest communication. The heterogeneous structure and network complexity require the automating of telecommunication services which have been assisted with the incorporation of machine learning and artificial intelligence, highlighting the new era of communication with the reliability and fastest accessibility. This survey reports the evolution of optical carrier generations and advancement in networks along with the fundamental achievements to comprehend the supportive competition while highlighting the gaps and challenges for future work.
Tyrosine metabolism in health and disease: slow-release amino acids therapy improves tyrosine homeostasis in phenylketonuria
Authors: Porta Francesco , Giorda Sara , Ponzone Alberto , Spada Marco 
Published: December 2020

Abstract

Objectives
Phenylalanine (Phe) hydroxylase (PAH) deficiency leads to hyperphenylalaninemia (HPA) and tyrosine (Tyr) depletion. We investigated Tyr homeostasis in patients with PAH deficiency and the effect of a slow-release amino acids therapy in phenylketonuria (PKU).

Methods
We performed four complementary investigations: (1) Tyr concentrations were monitored in 114 patients (10.6 ± 11.9 years) with PKU on dietary treatment supplemented with traditional amino acid formulations (n=52, 1175 samples) or non-PKU HPA on a free diet (n=62, 430 samples); (2) Tyr metabolism in PKU was quantitatively evaluated in three patients by a simple Tyr oral loading test (100 mg/kg); (3) diurnal and (4) long-term Tyr concentrations were evaluated in 5 and 13 patients with PKU, respectively, who switched from traditional to slow-release amino acids therapy.

Results
1) Tyr concentrations in the PKU population were subnormal and significantly lower than in non-PKU HPA (p<0.01); (2) the response to a Tyr loading test in PKU was normal, with basal Tyr concentrations reached within 12 h; (3) the diurnal metabolic profile in patients on slow-release amino acids therapy revealed higher morning fasting and nocturnal Tyr concentrations with respect to traditional therapy (p<0.01); (4) this picture was confirmed at follow-up, with normalization of morning fasting Tyr concentrations in patients on slow-release amino acids therapy (p<0.01) and unchanged Phe control (p=0.19).

Conclusions
Slow-release amino acids therapy can improve Tyr homeostasis in PKU. If associated to optimized Phe control, such a metabolic goal may allow long-term clinical benefits in patients with PKU.
Normal values of cardiac axis (CA) measurements in healthy fetuses during the first trimester screening ultrasound
Authors: Kesrouani Assaad , Abdallah Wael , Kharrat Roland , Choueiry Elie , Daou Linda , Nasr Bernard 
Published: December 2020

Abstract

Objectives
To report the normal fetal cardiac axis (CA) values at the time of the first trimester screening ultrasound.

Methods
Standardized images and measurement of the CA were obtained from 100 healthy fetuses between 11+0 and 13+6 weeks of gestation along with the nucal thichkness (NT), Crown–rump length (CRL) and other measurements. We excluded cases with abnormal NT, later diagnosis of abnormalities, and suspected fetal cardiopathy during the pregnancy follow-up. Data analysis was performed after all the patients delivered and cardiopathy was excluded.

Results
CA was measurable in all the cases. Higher CRL was associated with a decrease in the CA. The mean ± SD embryonic/fetal CA was 48±5,2°, ranging from 39 to 60°, The 2.5 percentile was defined at 40° and the 97.5 percentile at 59°. The Pearson test resulted in a significant correlation between CA and CRL with a coefficient R of 70% and p-value <0.01.

Conclusions
CA tends to decrease at the 11 to 13+6 gestational ages. We defined 2.5 and 97.5% curves for the normal values of CA in our Middle Eastern population. A larger study will be required to differentiate normal and abnormal values for the early detection of heart abnormalities.
Season and habitat affect diversity, abundance and reproductive state of small mammals near Lake Abaya, Ethiopia
Authors: Tomass Zewdneh , Shibru Simon , Yonas Meheretu , Megaze Aberham , Woldu Zerihun , van Houtte Natalie , Feleke Gebeyehu , Belmain Steven R. , Leirs Herwig 
Published: December 2020

Abstract
This study investigated the spatio-temporal association of small mammals in human-modified habitats. Small mammals were sampled using Sherman traps along 200 m transects (with one trap at every 10 m interval) in each of four habitats (cropland, forest patch, scrubland and wetland) replicated twice. Additional trapping was carried out in rural settlements comprising of eight homesteads, with five traps per homestead. Trapping was conducted in three sessions during the agricultural seasons: rainy (October), off-rain (December) and dry (February) over two years (2018 and 2019). In each session, trapping was carried out for three consecutive nights. A total of 497 small mammals belonging to 12 species from four families (Soricidae, Macroscelididae, Gliridae and Muridae) were captured. Murine rodents accounted for 99.4% of the animals with Mastomys erythroleucus (58%) being the dominant species. The scrubland had the highest small mammal species diversity while the cropland had the lowest. M. erythroleucus was not strongly associated with any spatio-temporal parameter and scored majority of seasonally reproducing individuals in the cropland, signifying its pest importance. Though disconnected from protected areas, habitats such as the scrubland harbor diverse small mammal species (including a vulnerable-endemic species, Grammomys minnae), suggesting the habitats’ significance for ecosystem functioning and conservation.
Central lifting property for orthomodular lattices
Authors: Kermani Neda Arjomand , Eslami Esfandiar , Saeid Arsham Borumand 
Published: December 2020

Abstract
We introduce and investigate central lifting property (CLP) for orthomodular lattices as a property whereby all central elements can be lifted modulo every p-ideal. It is shown that prime ideals, maximal ideals and finite p-ideals have CLP. Also Boolean algebras, simple chain finite orthomodular lattices, subalgebras of an orthomodular lattices generated by two elements and finite orthomodular lattices have CLP. The main results of the present paper include the investigation of CLP for principal p-ideals and finite direct products of orthomodular lattices.
The Poincaré-Cartan forms of one-dimensional variational integrals
Authors: Chrastinová Veronika , Tryhuk Václav 
Published: December 2020

AbstractFundamental concepts for variational integrals evaluated on the solutions of a system of ordinary differential equations are revised. The variations, stationarity, extremals and especially the Poincaré-Cartan differential forms are relieved of all additional structures and subject to the equivalences and symmetries in the widest possible sense. Theory of the classical Lagrange variational problem eventually appears in full generality. It is presented from the differential forms point of view and does not require any intricate geometry.