bluuebunny/crossref_metadata_2025_split huggingface dataset:
Solutions for a quasilinear elliptic problem with indefinite nonlinearity with critical growth
Authors: Costa Gustavo , Figueiredo Giovany , Junior José Carlos 
Published: August 2023

We are interested in nonhomogeneous problems with a nonlinearity that changes sign and may possess a critical growth as follows

{

−
div
⁡

(

a
(

|

∇
u

|

p

)

|

∇
u

|

p
−
2

∇
u

)

=
λ

|

u

|

q
−
2

u
+
W
(
x
)

|

u

|

r
−
2

u

in

Ω
,

u
=
0

on

∂
Ω
,

where
Ω
⊂

R

N

is a bounded domain with smooth boundary
∂
Ω
,
N
≥
2
,
1
<
p
≤
q
<
N
,
q
<
r
≤

q
∗

,
λ
∈

R

and function W is a weight function which changes sign in
Ω. Using variational methods, we prove the existence of four solutions: two solutions which do not change sign and two solutions which change sign exactly once in
Ω.
Cost of Care for Patients With Cirrhosis
Authors: Kanwal Fasiha , Nelson Richard , Liu Yan , Kramer Jennifer R. , Hernaez Ruben , Cholankeril George , Rana Abbas , Flores Avegail , Smith Donna , Cao Yumei , Beech Bettina , Asch Steven M. 
Published: August 2023

INTRODUCTION:
There are limited longitudinal data on the cost of treating patients with cirrhosis, which hampers value-based improvement initiatives.

METHODS:
We conducted a retrospective cohort study of patients with cirrhosis seen in the Veterans Affairs health care system from 2011 to 2015. Patients were followed up through 2019. We identified a sex-matched and age-matched control cohort without cirrhosis. We estimated incremental annual health care costs attributable to cirrhosis for 4 years overall and in subgroups based on severity (compensated, decompensated), cirrhosis complications (ascites, encephalopathy, varices, hepatocellular cancer, acute kidney injury), and comorbidity (Deyo index).

RESULTS:
We compared 39,361 patients with cirrhosis with 138,964 controls. The incremental adjusted costs for caring of patients with cirrhosis were $35,029 (95% confidence interval $32,473–$37,585) during the first year and ranged from $14,216 to $17,629 in the subsequent 3 years. Cirrhosis complications accounted for most of these costs. Costs of managing patients with hepatic encephalopathy (year 1 cost, $50,080) or ascites ($50,364) were higher than the costs of managing patients with varices ($20,488) or hepatocellular cancer ($37,639) in the first year. Patients with acute kidney injury or those who had multimorbidity were the most costly at $64,413 and $66,653 in the first year, respectively.

DISCUSSION:
Patients with cirrhosis had substantially higher health care costs than matched controls and multimorbid patients had even higher costs. Cirrhosis complications accounted for most of the excess cost, so preventing complications has the largest potential for cost saving and could serve as targets for improvement.
The comparison of gold extraction methods from the rock using thiourea and thiosulfate
Authors: Yanti Ika , Marliana Thia , Anugrahwati Mai , Wicaksono Wiyogo Prio , Winata Wahyu Fajar 
Published: August 2023

AbstractGold extraction from the rock is generally carried out using mercury. However, the high toxicity of mercury has a very dangerous impact on the environment and health. Various efforts have been made to reduce the use of mercury in gold extraction, one of which is the leaching method using thiosulphate and thiourea solution because they have low toxicity and are environmentally friendly. This study aimed to determine the results of gold extraction with thiosulphate and thiourea solution and determined the optimum concentration and time of extraction. The yield of the gold extract with thiosulphate solution was greater than that of thiourea solution. The thiosulphate solution had an optimum concentration of 0.3 M and an optimum time of 2 h. While the thiourea solution had an optimum concentration of 0.2 M and an optimum time of 3 h. The results of the Friedman test on the leaching time and concentration parameters show that leaching time has a significant effect on the Au leaching process, and the concentration parameter does not affect the Au leaching process from solid samples.
Global optimum solutions for a system of (k, ψ)-Hilfer fractional differential equations: Best proximity point approach
Authors: Patle Pradip Ramesh , Gabeleh Moosa , De La Sen Manuel 
Published: August 2023

Abstract
In this article, a class of cyclic (noncyclic) operators are defined on Banach spaces via concept of measure of noncompactness using some abstract functions. The best proximity point (pair) results are manifested for the said operators. The obtained main results are applied to demonstrate the existence of optimum solutions of a system of fractional differential equations involving

(

k
,
ψ

)

\left(k,\psi )

-Hilfer fractional derivatives.
Weighted Hermite-Hadamard inequalities for r-times differentiable preinvex functions for k-fractional integrals
Authors: Zafar Fiza , Mehmood Sikander , Asiri Asim 
Published: August 2023

Abstract
In this article, we have established some new bounds of Fejér-type Hermite-Hadamard inequality for

k

k

-fractional integrals involving

r

r

-times differentiable preinvex functions. It is noteworthy that in the past, there was no weighted version of the left and right sides of the Hermite-Hadamard inequality for

k

k

-fractional integrals for generalized convex functions available in the literature.
The influence of task complexity and task modality on learners’ topic and turn management
Authors: Ren Wei , Peng Yuchen , Wu Yiman 
Published: August 2023

AbstractPeer interaction is examined as an important indicator of performance in task-based language learning. However, little research has explored learners’ interactional competence under the influences of task factors. This study investigates the effects of task complexity and task modality on learners’ interactional competence in terms of topic management and turn management. Four tasks were designed – written-simple, written-complex, oral-simple, and oral-complex – and 40 Chinese EFL learners completed them in counterbalanced sequences. The results showed the significant influences of task complexity and task modality on learners’ topic and turn management. Task modality and complexity interactively influenced learners when they were expanding on topics in the role of the current speaker. Considering the cognitive demands of increasing complexity and differences between the two modalities, this paper discusses the implications of the findings for developing L2 interactional competence in speech- and text-based interactions.
Activity patterns of the Yellow-throated marten Martes flavigula in the Far East of Russia revealed by camera traps
Authors: Oleynikov Aleksey Yurievich , Sedash Gleb A. , Salkina Galina P. , Maslov Mikhail V. 
Published: August 2023

Abstract
The Yellow-throated marten Martes flavigula is one of the least studied species within the genus Martes and there is contradictory information regarding its daily activity, spanning from diurnal to nocturnal or cathemeral. Our long-term studies of the daily and seasonal activity of the Yellow-throated marten were carried out in five protected areas of Primorsky Krai (Russian Far East) using a large-scale network of camera traps from 2010 to 2021. The aim of the study was to find out the pattern of daily activity of the species, its changes over the seasons and in different territories of the region. We found that the Yellow-throated marten had a pronounced diurnal activity pattern, including one or two detection peaks per day. The species is less active at dusk and almost inactive at night in this part of its range. Two clusters with different patterns of marten activity were identified in the protected areas of Primorsky Krai: with one pronounced peak around noon in the continental part with a more severe climate and smoothed activity in coastal areas with milder climatic conditions. Seasonal detection has two peaks in April-May and October, which corresponds to species biological requirements.
Transition metal complexes for electrochromic and electrofluorochromic devices
Authors: Kim Yuna , Kubo Kazuya 
Published: August 2023

Abstract
This minireview discusses recent advances in transition metal complexes for electrochromic (EC) and electrofluorochromic (EFC) devices. EC and EFC materials can switch their color and photoluminescence, respectively, through electrochemical redox reactions. Transition metal complexes offer promising opportunities due to their molecular design versatility for various optoelectrical properties. The review provides an overview of electrochromism and electrofluorochromism, including performance characterization methods and device fabrication techniques. It highlights EC transition metal complexes that can form thin films suitable for device applications and EFC transition metal complexes that can efficiently tune photoluminescence through electrochemical quenching mechanisms. The review also summarizes advanced functions of EC/EFC transition metal complexes, including large optical contrast, fast response, dual-switching of color and emission, and easy device fabrication, which could lead to low-cost displays. Overall, this review article presents the latest research on transition metal complexes for EC and EFC devices and their potential for practical applications.
Simplifying the theoretical treatment ofwagerverbs
Authors: Reed Lisa A. 
Published: August 2023

AbstractSince at least Postal (1974.On raising. Cambridge, Mass: MIT Press), English has been assumed to possess a class of verbs that does not syntactically tolerate an overt noun phrase in the “usual” subject position of an infinitival complement clause but will allow one if it has undergone passivization,Wh-formation, Heavy-NP Shift, etc. This class of verbs has been variously described as Derived Object Constraint (DOC) verbs (Postal, Paul. 1974.On raising. Cambridge, Mass: MIT Press, Postal, Paul. 1993. Some defective paradigms.Linguistic Inquiry24(2). 347–364), ECM-with-Focus verbs (Rooryck, Johan. 2000.Configurations of sentential complementation: Perspectives from Romance languages. London & New York: Routledge), andwager-class verbs (Pesetsky, David. 2019.Exfoliation: Towards a derivational theory of clause size. Massachusetts Institute of Technology. Unpublished ms., Version 2.0.http://ling.auf.net/lingbuzz/004440(accessed 26 April 2022)). Based on the author’s own judgments, supplemented by the results of an acceptability survey conducted at an American university, this paper makes the novel claim that an English verb class with these grammatical properties does not exist, a finding that significantly reduces the inventory of grammatical mechanisms needed to account for complementation types generally. In addition, this paper develops new accounts of two distributional characteristics of thewagerverbs that certain other Raising to Object (RO)/Exceptional Case Marking (ECM) verbs do not exhibit. First, infinitival complements towagerverbs are argued to be aspectually linked to the matrix verb, while those ofpredict-type verbs are not. This explains a well-known stative restriction on complements to this verb class, which includesbelieve. Second, judgments of unacceptability previously attributed to Postal’s DOC or its counterpart in other theories are argued to result from three pragmatic usage preferences involving register and atypical degree that are encoded by the selection of the marked RO option with this verb class, preferences that play out differently forbelieveas opposed towagerverbs.
Crystal structures of biocompatible Mg-, Zn-, and Co-whitlockites synthesized via one-step hydrothermal reaction
Authors: Stefanovich Sergey Yu. , Lazoryak Bogdan I. , Antipin Alexander M. , Volkov Anatoliy S. , Evdokimov Andrei I. , Gurbanova Olga A. , Dimitrova Olga V. , Deyneko Dina V. 
Published: August 2023

Abstract
Large-scale single crystals of Ca9Mg(PO4)6(PO3OH), Ca9Zn(PO4)6(PO3OH), and Ca9Co(PO4)6(PO3OH) were synthesized using hydrothermal technique, and turned out to be similar to natural bone whitlockite. The hexagonal single crystals about 1 mm with high-quality were obtained with this method for the first time. The crystals were of sufficiently good quality for the precision X-ray structural investigation. The compounds crystallize in usual for this structural type trigonal space group R3c. Presence of hydrogen atom in the structure was confirmed by means of infra-red (IR) spectroscopy, differential scanning calorimetry (DSC) and differential thermogravimetry (DTG) methods. Based on the analysis of the local bond valence sum (BVS), a conclusion on the localization of H atoms was made. The formation of O–H groups and hydrogen bonds H⋯O in vicinity of PO4 tetrahedra was shown and similar to bone whitlockite. This research provides new data on possibility of using hydrothermal technique for obtaining doped bone whitlockites. Hydrogen-containing doped whitlockites can combine bioactive properties and improve biocompatibility due to similarity to natural bond. New structural data are useful for finding the ways to better biocompatibility of whitlockite-based materials.
Bifurcation analysis of ion-acoustic superperiodic waves in ultra-relativistic dense plasma
Authors: El-Labany Salah K. , Selim Mustafa M. , Habbak Enas L. , El-Shamy Emad F. 
Published: August 2023

Abstract
Bifurcation analysis of ion-acoustic solitary, periodic and superperiodic waves in ultra-relativistic quantum degenerate electron-positron-ion plasma is investigated based on Sagdeev’s pseudopotential approach. The phase plane plots for the superperiodic, periodic, and homoclinic trajectories for the dynamical system are developed. Rarefactive and compressive solitary waves are demonstrated to exist. The influence of plasma parameters on the characteristic properties of the periodic and superperiodic waves is studied. Also, the effect of different plasma parameters on the Sagdeev pseudopotential profile is investigated. The results of this study may be used to shed light on the fundamental properties of nonlinear waves in dense objects (e.g., white dwarfs and neutron stars). These results also may be beneficial in describing laboratory plasma (e.g., interaction experiments of intense laser-solid matter), and plasma applications such as microelectronic devices.
Suppressive Control of Incentive Salience in Real-World Human Vision
Authors: Hickey Clayton , Acunzo David , Dell Jaclyn 
Published: August 2023

Reward-related activity in the dopaminergic midbrain is thought to guide animal behavior, in part by boosting the perceptual and attentional processing of reward-predictive environmental stimuli. In line with this incentive salience hypothesis, studies of human visual search have shown that simple synthetic stimuli, such as lines, shapes, or Gabor patches, capture attention to their location when they are characterized by reward-associated visual features, such as color. In the real world, however, we commonly search for members of a category of visually heterogeneous objects, such as people, cars, or trees, where category examples do not share low-level features. Is attention captured to examples of a reward-associated real-world object category? Here, we have human participants search for targets in photographs of city and landscapes that contain task-irrelevant examples of a reward-associated category. We use the temporal precision of EEG machine learning and ERPs to show that these distractors acquire incentive salience and draw attention, but do not capture it. Instead, we find evidence of rapid, stimulus-triggered attentional suppression, such that the neural encoding of these objects is degraded relative to neutral objects. Humans appear able to suppress the incentive salience of reward-associated objects when they know these objects will be irrelevant, supporting the rapid deployment of attention to other objects that might be more useful. Incentive salience is thought to underlie key behaviors in eating disorders and addiction, among other conditions, and the kind of suppression identified here likely plays a role in mediating the attentional biases that emerge in these circumstances.Significance StatementLike other animals, humans are prone to notice and interact with environmental objects that have proven rewarding in earlier experience. However, it is common that such objects have no immediate strategic use and are therefore distracting. Do these reward-associated real-world objects capture our attention, despite our strategic efforts otherwise? Or are we able to strategically control the impulse to notice them? Here we use machine learning classification of human electrical brain activity to show that we can establish strategic control over the salience of naturalistic reward-associated objects. These objects draw our attention, but do not necessarily capture it, and this kind of control may play an important role in mediating conditions like eating disorder and addiction.
Fasting‐sensitive SUMO‐switch on Prox1 controls hepatic cholesterol metabolism
Authors: Alfaro Ana Jimena , Dittner Claudia , Becker Janina , Loft Anne , Mhamane Amit , Maida Adriano , Georgiadi Anastasia , Tsokanos Foivos‐Filippos , Klepac Katarina , Molocea Claudia‐Eveline , El‐Merahbi Rabih , Motzler Karsten , Geppert Julia , Karikari Rhoda Anane , Szendrödi Julia , Feuchtinger Annette , Hofmann Susanna , Karaca Samir , Urlaub Henning , Berriel Diaz Mauricio , Melchior Frauke , Herzig Stephan 
Published: August 2023

AbstractAccumulation of excess nutrients hampers proper liver function and is linked to nonalcoholic fatty liver disease (NAFLD) in obesity. However, the signals responsible for an impaired adaptation of hepatocytes to obesogenic dietary cues remain still largely unknown. Post‐translational modification by the small ubiquitin‐like modifier (SUMO) allows for a dynamic regulation of numerous processes including transcriptional reprogramming. We demonstrate that specific SUMOylation of transcription factor Prox1 represents a nutrient‐sensitive determinant of hepatic fasting metabolism. Prox1 is highly SUMOylated on lysine 556 in the liver of ad libitum and refed mice, while this modification is abolished upon fasting. In the context of diet‐induced obesity, Prox1 SUMOylation becomes less sensitive to fasting cues. The hepatocyte‐selective knock‐in of a SUMOylation‐deficient Prox1 mutant into mice fed a high‐fat/high‐fructose diet leads to a reduction of systemic cholesterol levels, associated with the induction of liver bile acid detoxifying pathways during fasting. The generation of tools to maintain the nutrient‐sensitive SUMO‐switch on Prox1 may thus contribute to the development of “fasting‐based” approaches for the preservation of metabolic health.
Reflexiones que emergen en torno a la labor del maestro en tiempos de pandemia, a partir de la observación de la clase de ciencias dirigida a estudiantes de tercero de primaria de la Escuela Pedagógica Experimental
Authors: Rey Mogollón Laura Sofía , Escobar Gil Gloria Inés 
Published: August 2023

La presente biocrónica surge de la reflexión y aproximación al ejercicio de la práctica pedagógica y didáctica de los maestros en formación en tiempos de pandemia. Este escrito hace parte de la reflexión sobre los aprendizajes logrados durante la práctica I, que corresponde al período académico 2020-2, de la Licenciatura en Biología de la Universidad Pedagógica Nacional, efectuada en la institución educativa Escuela Pedagógica Experimental (EPE). Es de añadir que, las reflexiones aquí plasmadas corresponden a las posibles estrategias pedagógicas y didácticas para la enseñanza de las Ciencias, que emergen de la mediación virtual a causa de la Covid-19, y que contribuyen al proceso formativo de los maestros, como al afianzamiento del docente en ejercicio para enfrentarse a los retos que ofrece la actual crisis sanitaria.

Dado el propósito de este ejercicio escritural, es pertinente mencionar de manera inicial su estructura y la intencionalidad de cada uno de sus apartados, organizándose éste de la siguiente manera; inicia con una breve descripción de la Práctica Pedagógica y Didáctica de la Licenciatura en Biología de la Universidad Pedagógica Nacional; seguido, de una sucinta argumentación y contextualización de la institución educativa elegida para realizar la práctica I; adicionalmente, se enfatiza en los “Proyectos de Aula”, que surgen a la luz de las ATA´s, estrategia metodológica y didáctica de la institución, además de mencionar ciertas generalidades de las mismas; seguido de esto, se presenta una reflexión que emerge del proceso formativo apoyada en lo que Morín (1979) denomina “cabeza bien puesta” y "cabeza repleta"; posteriormente, se mencionan las particularidades al interior del “Proyecto de Aula” para tercero de primaria, donde se aborda el estudio de ciertas especies de aves, cuyo propósito es el reconocimiento de la diversidad de dichos organismos; por otra parte, se destacan algunos postulados frente al quehacer del maestro desde la teoría, en contraste con las reflexiones que emergieron a partir de la observación de la clase de ciencias, además de mencionarse la incidencia que tuvo la maestra en formación; se añade también, el espacio que brinda la EPE para la formación de maestros en ejercicio; y finalmente, se cierra este escrito con reflexiones finales que surgen de dicha experiencia.
Derin öğrenme ve belirsizlik ölçeği ile akciğer kanserinin erken teşhisi
Authors: ÜZÜLMEZ Sema , ÇİFÇİ Mehmet Akif 
Published: August 2023

Derin Öğrenmenin (DÖ) teknikleriyle erken kanser tanısı son dönemlerde araştırmacılar arasında en çok üzerinde durulan konu olmuştur. Ayrıca pek çok araştırmada görüldüğü üzere DÖ’nın tıp alanında kullanımı günümüzde daha da önem kazanmaktadır. Araştırmacılar sağlık alanında çoğunlukla kanser ve kanser türleri teşhis ederken DÖ tekniklerinden yararlanmaktadır. Bunun başlıca nedeni akciğer kanserinden ölüm riskinin yüksek olmasıdır. Bu tür hastalıkların tanısında BT görüntülerinin net olmamasından dolayı, doğru karar vermede uzmanlar görüş ayrılıkları yaşamaktadır. Bu ve benzeri hastalıkları erken ve doğru tanılayabilen ve daha güvenilir sonuçlar verebilen DÖ karar verme mekanizmaları bir seçenek haline gelmiştir. Yapılan araştırmalara göre akciğer kanseri, dünya çapında ölümlerin en önde gelen nedenleri arasındadır. Akciğer kanseri sadece 2019 yılında tahmini 1,76 milyon insanın ölümden sorumludur. Sebepleri artıkça (ortalama aile öyküsü, sigara, yüksek tansiyon ve diğer popüler tıbbi nedenler) ölüm oranı ortalaması %80'in üzerinde arttığı gözlemlenmiştir. Olgular erken tanı konup, tedavi edilirse kanser kaynaklı ölümlerin oranının azalmakta olduğu görülmüştür. Hastalığın doğru saptanması tedavi edilmesinde önemli rol oynamaktadır.
Bu çalışmada Ayrık Dalgacık Dönüşümü (ADD) yaklaşımı ile DÖ tekniği birleştirilerek, 6053 akciğer tomografi veri seti (veri kaynağı, yaş grubu, coğrafi bölge vb. kısa bilgi) üzerinde işlem yapılmıştır. Hastanın kanser olup olmadığı, kanser olduğu takdirde ise bunun iyi huylu (benign) ya da kötü huylu (malign) olduğuna karar verilmesine çalışılmaktadır. Bilgisayarlı Tomografi (BT), görüntülerde öncelikle görüntü işleme aşamalarının yanı sıra ADD ile öznitelik çıkarımı yapılıp elde edilen veriler DÖ ’ya girdi verisi olarak kullanılır. Bu çalışmada iki metot önerilmiştir. Birinci yöntemde VGG-16, Inception v4, MobileNet v3 kullanılırken ikinci yöntemde AlexNet yöntemi uygulanmaktadır. Bu yöntem hem ADD kullanımı hem de iki aşamalı olması yönüyle yaygın kullanılan diğer tekniklerden farklıdır. Deneysel sonuçların yüksek performans gösterdiğini ve AlexNet’in %99, 86, MobileNet v3’ün %98,00, VGG-16 %95,50, Inception v4’ün ise %96,03 doğrulukta sonuç verdiği belirlenmiştir. Böylece akciğer hastalıklarının BT görüntülerinde kanser olup olmadığı, kanser ise hangi aşamada olduğu konusunda ön bilgi elde edilebilmektedir.