bluuebunny/crossref_metadata_2025_split huggingface dataset:
Weak solution of a Neumann boundary value problem with 𝑝(𝑥)-Laplacian-like operator
Authors: El Ouaarabi Mohamed , Allalou Chakir , Melliani Said 
Published: June 2022

Abstract
In this paper, we study the existence of a weak solution for a class of Neumann boundary value problems for equations involving the

p
⁢

(
x
)

p(x)

-Laplacian-like operator.
Using a topological degree theory for a class of demicontinuous operators of generalized

(

S
+

)

(S_{+})

-type and the theory of the variable exponent Sobolev spaces, we establish the existence of a weak solution of this problem.
Our results extend and generalize several corresponding results from the existing literature.
Analysis of pilots’ EEG map in take-off and landing tasks
Authors: Ji Li , Zhang Chen , Li Haiwei , Zhang Ningning , Zheng Peng , Guo Changhao , Zhang Yong , Tang Xiaoyu 
Published: June 2022

Abstract
The take-off and landing phases are considered the critical stages of aircraft flight. To ensure flight efficiency and safety in the critical stages, this research proposes a method for analyzing and monitoring pilot flight status by β-wave. The focus of the study is β potential changes on the EEG map. First, the proportion of β-wave in the electroencephalogram (EEG) of pilots during take-off and landing increases significantly. Second, the EEG map accurately and intuitively reflects the spatial distribution of potential changes in brain regions. Finally, correlation and machine learning are used for further research of β-wave. The conclusions show that the significant changes in the β-wave caused by take-off and landing can be seen in the EEG map to identify and adjust the pilot’s state. Therefore, this research provides more accurate and effective reference information (like the EEG map, correlation and machine learning) for efficient and safe flight training in the critical stages.
Spectrality of self-similar measures with product-form digits
Authors: Su Juan , Wu Sha , Chen Ming-Liang 
Published: June 2022

Abstract
A Borel probability measure μ on

ℝ

{\mathbb{R}}

is called a spectral measure if it has an exponential orthonormal basis for

L
2

⁢

(
μ
)

{L^{2}(\mu)}

. In this paper, we consider the spectrality of the self-similar measure

μ

ρ
,
D

{\mu_{\rho,D}}

generated by

0
<
ρ
<
1

{0<\rho<1}

and the product-form digit set

D
=

N

p
0

⁢

L
0

⁢

{
0
,
1
,
…
,

N
-
1

}

⊕

N

p
1

⁢

L
1

⁢

{
0
,
1
,
…
,

N
-
1

}

⊕
⋯
⊕

N

p
s

⁢

L
s

⁢

{
0
,
1
,
…
,

N
-
1

}

,

D=N^{p_{0}}L_{0}\{0,1,\ldots,N-1\}\oplus N^{p_{1}}L_{1}\{0,1,\ldots,N-1\}%
\oplus\cdots\oplus N^{p_{s}}L_{s}\{0,1,\ldots,N-1\},

where

N
≥
2

{N\geq 2}

is a prime number,

0
≤

p
0

<

p
1

<
⋯
<

p
s

{0\leq p_{0}<p_{1}<\cdots<p_{s}}

and

gcd
⁡

(

L
i

,
N
)

=
1

{\gcd(L_{i},N)=1}

for all

0
≤
i
≤
s

{0\leq i\leq s}

. We show that

μ

ρ
,
D

{\mu_{\rho,D}}

is a spectral measure if and only if

ρ

-
1

=

N
q

⁢
M

{\rho^{-1}=N^{q}M}

and

p
i

≠

p
j

(

mod
q

)

{p_{i}\neq p_{j}~{}(\bmod~{}q)}

for all

0
≤
i
≠
j
≤
s

{0\leq i\neq j\leq s}

, where

gcd
⁡

(
M
,
N
)

=
1

{\gcd(M,N)=1}

.
A Defence of Robust Idealism in Political Philosophy
Authors: Bertea Stefano 
Published: June 2022

AbstractIn this contribution, I defend a robust model of political idealism, making the case for such an approach to both the theory and practice of politics. On this view, not only in framing a political philosophy but also in putting forward policy proposals and institutional designs, we need not think about feasibility as an overriding, make-or-break criterion for evaluating the soundness of that theory or proposal, neither of which loses its point simply because it is deemed to be unlikely to be implemented. Feasibility, in other terms, cannot be taken as the only standard, or even as the main standard, on which basis to assess the practical worth of a political strategy.
Existence of solutions for unilateral problems associated to some quasilinear anisotropic elliptic equations with measure data
Authors: Al-Hawmi Mohammed , Hjiaj Hassane 
Published: June 2022

Abstract
In this paper, we will study the existence of solutions for some nonlinear anisotropic elliptic equation of the type

{

A
u
+
g

(

x
,
u
,
∇
u

)

=
μ
−
d
i
v

φ

(
u
)

i
n

Ω
,

u
=
0

o
n

∂
Ω
,

\left\{ {\matrix{{Au + g\left( {x,u,\nabla u} \right) = \mu - div\,\phi \left( u \right)} \hfill & {in\,\Omega ,} \hfill \cr {u = 0} \hfill & {on\,\,\partial \Omega ,} \hfill \cr } } \right.

where

A
u
=
−

∑

i
=
1

N

∂

∂

x

i

a

i

(

x
,
u
,
∇
u

)

Au = - \sum\limits_{i = 1}^N {{\partial \over {\partial {x_i}}}{a_i}\left( {x,u,\nabla u} \right)}

is a Leray-Lions operator, the Carathéodory function g(x, s, ξ) is a nonlinear lower order term that verify some natural growth and sign conditions, where the data µ = f − div F belongs to L
1−dual and ϕ (·) ∈ C
0(R, R

N
).
New results on the existence of periodic solutions for Rayleigh equations with state-dependent delay
Authors: Eswari Rajendiran , Alzabut Jehad , Samei Mohammad Esmael , Tunç Cemil , Jonnalagadda Jagan Mohan 
Published: June 2022

Abstract
We consider a Rayleigh-type equation with state–dependent delay

℘
″

(
ϑ
)

+

𝒱

1

(

ϑ
,
℘

(
ϑ
)

)

+
A

(

℘

(

ϑ
−

𝒱

2

(

ϑ
,
℘

(
ϑ
)

)

)

)

=
B

(
ϑ
)

.

\wp ''\left( \vartheta \right) + \mathcal{V}{_1}\left( {\vartheta ,\wp \left( \vartheta \right)} \right) + A\left( {\wp \left( {\vartheta - \mathcal{V}{_2}\left( {\vartheta ,\wp \left( \vartheta \right)} \right)} \right)} \right) = B\left( \vartheta \right).

We establish a set of new su˚cient conditions on the existence of at least one positive periodic solution by using the continuation theorem of coincidence degree theory. Our results not only provide a new approach but also generalize previous results. An example with graphical representations are presented to illustrate the results.
Ethnic Inequality and Anti-authoritarianism in Sub-Saharan Africa
Authors: Nchare Karim , Ogeny Moses 
Published: June 2022

Is ethnic inequality associated with aversion to authoritarian regimes and increase support for democracy as a means of influencing redistribution? Using four rounds of Afrobarometer panel data, covering 29 African countries and 353 distinct ethnic groups, and an ordered logistic model, we show that a rise in Between-ethnic inequality (BGI) is associated with an increase support for anti-authoritarianism and that its effects strengthen as Within-ethnic inequality (WGI) decreases. We find that individuals most strongly support democracy when ethnic identity is reinforced by economic inequality. We also show that support for a change of regime is reinforced when some ethnic groups believe they are politically excluded from government.
ОДЕРЖАННЯ ТА ХАРАКТЕРИСТИКА БІМЕТАЛКАРБОНОВОГО НАНОКОМПОЗИТУ FeCu@C
Authors: А. Литвин Валентина , Галаган Ростислав Л. 
Published: June 2022

Розроблено простий та матеріально вигідний метод синтезу змішаного залізо-мідного нанокомпозиту в карбоновій матриці з синтетичних гумінових речовин. Метод базується на піролізі суміші синтетиних гуматів феруму та купруму у водневій атмосфері при температурі 800-900°С. Характеризацію залізо-мідного нанокомпозиту здійснювали методом рентгенівської дифракції, скануючої електронної мікроскопії, рентгенофлюоресцентного аналізу, вольтамперометричного методу. Встановлено, що синтезований нанокомпозит являє собою металічні утворення розміром до 700-1000 нм, розташованих на поверхні та об'ємі карбонової матриці, яка за даними рентгенівської дифракції є аморфною. Енергодисперсійна рентгенівська спектроскопія показала, що сферичні утворення складаються, в основному, з міді. На дифрактограмі зразка отриманого нанокомпозиту піків ОЦК фази заліза не виявлено. Однак, дані рентгено-флуоресцентної спектроскопії підтверджують наявність у складі композиту обох елементів, а проведене вольтамперометричне дослідження переконливо доводить, що ці елементи знаходяться там у нуль-валентному стані. Виявлено, що залізо-мідний нанокомпозит характеризується хорошою електропровідністю, але відсутністю феромагнітних властивостей, через те, що залізо входить до спільної з міддю ГЦК кристалічної решітки.
ОТРИМАННЯ МІКРОКАПСУЛ НА ОСНОВІ КОМЛЕКСІВ ХІТОЗАНУ ТА КАРБОКСИМЕТИЛЦЕЛЮЛОЗИ МЕМБРАННОЮ ЕМУЛЬСИФІКАЦІЄЮ
Authors: В. Коновалова Вікторія , Колесник Ірина С. , Побігай Ганна А. , Маринін Андрій І. 
Published: June 2022

У роботі термо- та рН-чутливі мікрокапсули отримані на основі поліелектролітного комплексу хітозан-карбоксиметилцелюлоза методом мембранної емульсифікації. Мікрокапсули розміром 200-250 нм отримані з використанням трекової ПЕТФ мембрани з розміром пор 0,1 мкм. Стабільність мікрокапсул, їх розподіл за розміром, дзета-потенціал поверхні та вплив температури та рН на розмір частинок досліджено методом динамічного світлорозсіювання. Утворення комплексу підтверджено методом ІЧ спектроскопії та досліджено структуру комплексів при різних співвідношеннях полімерів методом візкозиметрії. Досліджено кінетику вивільнення папаверин гідрохлориду із мікрокапсул на основі комплексів хітозан:КМЦ при співвідношеннях 1:1 та 3:2. Даний метод є простою технікою для отримання мікрокапсул з інтерполімерних комплексів шляхом почергового введення розчинів полімерів в дисперсійне середовище, що дає можливість отримання монодисперсних суспензій визначеного розміру та ефективної іммобілізації широкого спектру фармацевтичних інгредієнтів.
Multi-grade teaching: Experiences of teachers and preservice teachers in Turkey
Authors: Kartal Ayça , Güven Demir Elif 
Published: June 2022

AbstractThis case study compared preservice primary school teachers' and primary school teachers' experiences with multi-grade teaching in the 2018–2019 academic year. The sample consisted of 17 fourth-year students in the department of primary school teaching education of a public university and 14 multi-grade teachers from 12 schools in Turkey. The preservice teachers and multi-grade primary school teachers developed similar lesson plans and executed similar learning processes. Although the multi-grade teachers claimed that they used different methods (brainstorming, drama, observation, etc.), the preservice teachers observed them mostly use Q&A and direct instruction techniques. The preservice teachers did not use multidisciplinary teaching activities but instead showed students videos and slides and designed textbook-based activities. They did not use different methods to plan a multi-grade lecture. Multi-grade teaching training offered by the faculties of education should be interdisciplinary and encourage collaboration among teachers from other branches (e.g., teacher agency).
Characterization and electrochromic properties of NiO thin films prepared using a green aqueous solution by pulsed spray pyrolysis technique
Authors: Obaida M. , Fathi Ahlam M. , Moussa I. , Afify H. H. 
Published: June 2022

AbstractNickel acetylacetonate of 0.2 M aqueous solution is used to synthesize (NiO) thin films by pulsed spray pyrolysis method onto glass substrates. Structural and morphological properties of the deposited films were examined using (XRD) and (FESEM) techniques. The results revealed that at low substrate temperatures and short spray time, the obtained films were amorphous, whereas the films deposited at higher temperatures and long spray time has a cubic phase. Cross-sectional FESEM is used to properly estimate films thicknesses. The energy band gap is calculated to be 3.52–3.89 eV using optical spectrum measurements. Electrochromic properties of NiO films deposited on FTO working electrode substrates are measured in a three-electrode cell containing KOH with Ag/AgCl reference electrode at a scan rate of 20 mV/s. The charge density increases with the thickness, and it is 98.0 mC/cm2 at the thickness of 360 nm after 30-min deposition time at 400 °C and for most of the samples the film stability increases after cycling.
Graphical abstract
STRATEGI PENINGKATAN PRODUKTIVITAS INDUSTRI PERIKANAN BERBASIS BAHAN BAKU DI PELABUHAN PERIKANAN SAMUDERA NIZAM ZACHMAN JAKARTA (Improvement strategy for the fisheries industry productivity based on raw materials in Nizam Zachman Jakarta Ocean Fishing Port)
Authors: Suhadak Doni , Darmawan Darmawan , Zulkarnain Zulkarnain 
Published: June 2022

ABSTRAK Produktivitas industri perikanan berbasis pemenuhan bahan baku menjadi salah satu fokus kebijakan pembangunan kelautan dan perikanan lima tahun kedepan. Beberapa studi menunjukkan kondisi kekurangan bahan baku, tetapi studi lain melaporkan peningkatan sember daya ikan. Kekurangan bahan baku diduga bukan hanya disebabkan oleh kurangnya ketersediaan ikan, tetapi interaksi dan mekanisme pasar yang terjadi menyebabkan industri pengolahan harus mempertimbangkan berbagai faktor dalam menentukan keputusan pembelian bahan baku. Penelitian ini bertujuan untuk mengidentifikasi tahap pengambilan keputusan pembelian, mengidentifikasi permasalahan dan menentukan rekomendasi strategi mengatasi permasalahan. Penelitian ini merupakan studi kasus terhadap dua perusahaan yang telah memiliki approval number untuk ekspor ke Uni Eropa. Observasi dan wawancara mendalam dilakukan kepada responden dan selanjutnya dianalisis secara kualitatif untuk menggambarkan kondisi dan permasalahan. Hasil penelitian menunjukkan terdapat permasalahan pada penyediaan bahan baku. Faktor – faktor yang mempengaruhi pengambilan keputusan pembelian bahan baku adalah dinamika permintaan negara buyer dan kesepakatan harga negosiasi. Rekomendasi kebijakan yang dapat dilakukan adalah mencari pasar potensial baru dan melakukan pengaturan pegawai. Kata kunci : bahan baku; industri perikanan; negosiasi; produktivitas; strategi. ABSTRACT The Productivity of the fisheries industry based on the fulfillment of raw materials becomes one of marine and fishery development policy focus in the next five years. Various studies show the raw materials deficiency condition, but other studies report an increase in fish stock. The shortage of raw materials is thought to be caused not only by the lack of availability of fish, but also the interaction and market mechanisms that occur causing the processing industry to consider various factors in determining the decision to purchase raw materials. This study aims to identify the stages of purchasing decisions, identify problems, and determine recommendations for problem-solving strategies. This research is a case study of two companies that already have approval numbers for export to the European Union. Observations and in-depth interviews were conducted with respondents and then analyzed with qualitative to describe conditions and problems. The results showed that there are problems in the provision of raw materials. The influencing factors to the decision making are the dynamics of buyer's country demand and negotiated price agreements. Policy recommendations are finding new potential markets and making employee arrangements. Keywords: fisheries industry; negotiated; productivity; raw material; strategy.
cineclubismo
Authors: Silva Arias Catalina 
Published: June 2022

En este documento se presenta una experiencia de intervención pedagógica a través del cine – club “Cineurosis” del Departamento de Humanidades, el cual muestra la integración del cine a los espacios académicos como una manera de fomentar la cultura y educar a los estudiantes en la recepción de los mensajes audiovisuales. Las actividades programadas se desarrollan en la Universidad Cooperativa de Colombia (UCC, sede Barrancabermeja) para un público diverso.

Es así que, el proyecto se enfoca en crear una serie de recursos didácticos para la inclusión del cine en el aula especializada y hacer de la vivencia académica una experiencia estética, que permite el encuentro con los Otros, el conocimiento, el lenguaje audiovisual y la reflexión.
secuencia didáctica para la producción de textos argumentativos tipo ensayo mediado por la fotografía
Authors: Marín Palacio Nathalia , Duque Rodas Jenny Vanessa , Henao García Luz Stella 
Published: June 2022

Introducción: El presente artículo es el resultado de una investigación en la que se llevó a cabo una secuencia didáctica con un grupo de estudiantes de un preuniversitario. El propósito de esta, era desarrollar competencias en la producción de textos argumentativos tipo ensayo, mediado por la fotografía y generar una reflexión sobre las prácticas de enseñanza de lenguaje por parte de las investigadoras. Metodología: El estudio se realizó desde un enfoque cuantitativo con un diseño cuasi experimental intragrupo, en el que se aplicó una prueba Pre test, seguido de una intervención didáctica y por último un Pos test. Los instrumentos utilizados para la recolección de la información fueron una rejilla con la que se evaluaron los textos producidos por los estudiantes y el diario de campo, utilizado para el análisis de las prácticas de enseñanza del lenguaje. Resultados: Los resultados muestran la eficacia de la secuencia didáctica para el fortalecimiento de las capacidades argumentativas en los estudiantes. Por otro lado, las docentes investigadoras tuvieron transformaciones en la manera de concebir y enseñar el lenguaje. Conclusiones: La aplicación de una secuencia didáctica con la mediación de la fotografía, la retroalimentación colectiva, el uso de las TIC y la tarea integradora fueron fundamentales para el cumplimiento de los objetivos. Sin embargo, el desarrollo de habilidades argumentativas y la creación de ensayos requieren de un proceso constante, lo que da cuenta de la necesidad de incluir en los currículos de los programas de educación superior la alfabetización académica.
Prognostic value of handgrip strength and functional indicators in elderly patients in a southern brazilian hospital
Authors: Kock Kelser de Souza , Santos Halen D’Aquino Claudio 
Published: June 2022

Background: the handgrip strength (HGS) is an important functional indicator in the elderly. The aim of this work was to evaluate the prognostic value of HGS, sociodemographic and functional indicators in elderly patients in a hospital in southern Brazil. Methods: prospective cohort observational study in individuals aged 60 years or older who were admitted to the clinical sectors in a tertiary Hospital of a southern Brazil. Results: a total of 218 participants were evaluated, of which 55% were men, with median age (p25-p75) of 72 years (65.7-78.0). The most prevalent hospitalization diagnoses were respiratory (19.7%) and vascular (19.3%) disorders. The median values (p25-p75) of HGS for men and women were, respectively, 50.00 (25.0-65.0) and 30.0 (20.0-40.0) kgf. As to the outcome, 44 (20.2%) individuals eventually died. The study showed that there was higher chance of mortality in aged patients (OR = 1.063; CI 95% 1.021-1.108) with higher Charlson Comorbidity Index scores (OR = 1.293; CI 95% 1.149-1.256), Glasgow Coma Scale Index scores <15 (OR = 15.656; CI 95% 7.161-34.228), Katz Index scores <6 (OR = 15.617; CI 95% 6.496-37.545), laboratory tests indicating leukocytosis (OR = 4.118; CI 95% 1.984-8.546) and anemia (OR = 3.104; CI 95% 1.307-7.369), lower HGS values (Men: OR = 0.901; CI 95% 0.862-0.941; Women: OR = 0.926; CI 95% 0.896-0.956), and longer length of stay in hospital (OR = 1.088; CI 95% 1.042-1.136). Conclusion: HGS and other epidemiological indicators are highly relevant in the prognostic evaluation of elderly people in hospital admission.
Awareness and perception of mothers regarding Integrated child development services scheme for children in an urban area of Kerala
Authors: Abraham Ruth 
Published: June 2022

Background: Integrated child development services (ICDS) scheme was launched in India to improve the nutritional and health status of children. Perception of beneficiaries about ICDS services provided by Anganwadi centres had not being sufficiently explored. Hence the objective of this study was to assess the awareness and perception of mothers regarding Anganwadi services for children in an urban area of Kerala. Methods: A cross-sectional study was conducted in an urban area of central Kerala. Study participants were mothers having pediatric children, who were residing in the urban areas of central Kerala for at least the past one year. A total of 70 mothers were interviewed using a pre-designed semi-structured questionnaire after obtaining informed consent. Data were analyzed by SPSS software version 18.Results: Mean age of the study participants was 31.7±5.8 years. But 24.3% of children of the study participant never attended Anganwadi. The majority of study participants were aware of supplementary nutrition services (97%) provided by ICDS. Immunization services (58.6%) were the least aware service in ICDS. The perception of participants regarding adequate quantity and quality of supplementary nutrition from Anganwadi was only 58.6% and 62.9%. Only 57.1% felt that preschool non-formal education was beneficial, even though 90% were aware of this service from the Anganwadi centre.Conclusions: The participants were aware of ICDS services, but their perception regarding Anganwadi services was poor. Reasons for poor perception regarding ICDS services need to be assessed by focus group discussions and in-depth interviews with beneficiaries.
Tertiary care centre as safety net of tuberculosis diagnosis in National tuberculosis elimination programme in India
Authors: Basavegowdanadoddi Marinaik Shrinivasa , Selvaraju Sriram , Srinivasan R. , . Krishnamoorthy , Raina Sunil , Sood Abhilash , Madhavi Devi , . Padmapriyadharsini 
Published: June 2022

Background: About one-fifth of the global gap in TB diagnosis was contributed by India which translates to roughly over half a million cases. Meanwhile the National tuberculosis elimination programme has made coordinated efforts to involve public and private health providers in accelerating TB notification. Government medical colleges which are tertiary care centres act as important catchment point for referral as well as for walk-in for tuberculosis diagnosis. The aim of the study was to evaluate the proportion of TB cases notified from various departments of medical colleges to NTEP for TB diagnosis and referral pattern of the presumptive TB patients.Methods: This was a descriptive study. Data were collected of all presumptive TB patients referred from various departments of 4 selected tertiary care centres to NTEP for TB diagnosis between 1January to 31December 2018.Results: A total of 1601 presumptive TB patients were registered in the study period, of whom 67% were microbiologically confirmed TB patients. Overall, 44% of presumptive TB patients were referred from the pulmonary medicine department, with 26%, 15%, and 4% from general medicine, surgery, and integrated counselling and testing centres departments respectively (χ2=1856.647, p<0.000).Conclusions: Our study revealed that the proportion of TB patients notified by the medical colleges was high. Further strengthening of the referral system increases TB case detection thereby enabling early initiation of TB treatment leading.