bluuebunny/crossref_metadata_2025 huggingface dataset:
Los cinco sólidos geométricos y su expresión simbólica en el arte.
Authors: León-Río Belén
Published: November 2024

Nuestra realidad física sería un modelo ideal análogo al mundo de las Ideas que el arte en general a través de los distintos periodos de la historia habría reflejado mediante sus formas creativas que se traducirían en una variadísima relación de figuras geométricas como los cinco sólidos geométricos cuyo significado simbólico enlazaría con nuestros procesos mentales que serían análogos al orden del universo.
En este artículo veremos cómo a través de los sólidos platónicos obtenemos una visión más amplia de la creación de la forma en el arte, siendo este acto creador original del universo material equivalente a las leyes que rigen la actividad artística donde estos volúmenes cósmicos adquieren un gran protagonismo como símbolos que establecen un lenguaje visual que contendría conexiones matemáticas capaces de manifestar la organización de la materia además de los elementos vitales y sutiles de la naturaleza. De esta manera el arte puede convertirse en un medio para el desarrollo de nuestra intuición despertando así nuestras capacidades todavía latentes y abriendo nuestras puertas hacía otras formas de concebir la realidad.
El problema de la representación artística y el genocidio del pueblo palestino
Authors: Morillo Santacruz Orlando
Published: November 2024

El presente trabajo critico-reflexivo aborda un pronunciamiento y un desafío que surge desde el arte, en respuesta a la pasiva aceptación por parte de las grandes potencias mundiales del holocausto contra el pueblo palestino. El progreso y la civilización han llegado a una crisis irreversible, junto a la fractura y el ocaso de los grandes metarrelatos de la modernidad. Este texto es parte de la expresión estética contra este espectáculo de la muerte y el terror, a partir de la configuración de propuestas artísticas que lleven a generar procesos creativos de resistencia frente al éxodo y escapatoria del capitalismo que, sustentadas en la fenomenología y la geosemantica, permitan validar el territorio como un sistema lingüístico, que convierte al espacio geográfico en significado, cargado de vida y cultura, en lugar de muerte y exterminio.
Los álbumes familiares más allá de sí mismos. Una exploración en su estética, banalidad y naturaleza social.
Authors: Bohórquez Barrera Wilson Stiven , Galeano Bolívar Bernardo , Bermúdez Tobón Juan Guillermo
Published: November 2024

El siguiente artículo presenta una exploración en torno a un dispositivo visual narrativo fundamental para reconstruir el pasado y construir la identidad/memoria de un grupo social determinado, por tanto, de una cultura particular: los álbumes familiares. El énfasis recaerá en dos propósitos complementarios. Por un lado, reconstruiremos la discusión sobre su especificidad, ante todo, su dimensión material. Así, la intención fundamental estará dirigida en discutir un aspecto que suele ser omitido en las investigaciones históricas: los álbumes deben considerarse tanto como objetos incrustados en prácticas sociales que producen diversos efectos, como también con cualidades específicas: tamaños, colores, patrones, texturas. Por otro lado, consideraremos que los álbumes familiares nunca son solamente memorias particulares, antes bien, en ellas es posible vislumbrar, tanto posibles pasados, como también encontrar variadas preguntas sobre cómo conservar las memorias de la vida cotidiana y las diferencias existentes entre los recuerdos del espacio público y del espacio privado.
Multiple Decubitus Ulcers in Dm type II Patients with Autologous Plasma-Rich Platelet therapy : A Case Report
Authors: Nazma Diani , Amalia Husnun , Panduwaty Lira , Laksmi Antin Tri , Christian Christian , Mahardieni Karlina , Karina Karina
Published: November 2024

Background:Multiple decubitus ulcers are a condition of injury that appears on several parts of the body’s skin due to pressure for a long time without any change in position. This condition usually occurs in someone with limited movement, for example, due to experiencing certain disease conditions that require the person to rest in bed for a long time, especially patients in the Intensive Care Unit (ICU) or after ICU care with chronic diseases and limited movement. Case Presentation: This case report assesses the success of multiple cases of decubitus ulcers in patients with type II diabetes mellitus with Autologous Plasma Rich Platelet therapy. Case report: Autologous PRP therapy is given by intralesional injection; debridement is done every three days and assessed every one week. Patients are also subjected to blood sugar control, blood pressure control, blood correction, and albumin to speed up the wound healing process in multiple decubitus ulcers. Conclusion:the conclusion of this case report with additional management in the form of intralesional injection of autologous PRP performed on multiple decubitus ulcer patients with Diabetes Mellitus, which is rich in growth hormone, will greatly help the wound healing process.
Effect of Giving Pineapple Juice (Ananas comosus) on The Viability of Wistar Rat Spermatozoa Those Exposed to Cigarette Smoke
Authors: Hermawati Donna , Prakoso Galang Dwi , Ariani Mahayu Dewi , Juniarto Achmad Zulfa
Published: November 2024

Background: Infertility affects 15% of couples worldwide, with 40-50% of cases attributed to unhealthy lifestyle factors in men, such as smoking, alcohol consumption, drug use, obesity,poordietaryhabits,coffeeintake,andpsychologicalstress.Smokinghasanegative impactonreproductivehealthandreducesthechancesofhavingchildren.Smokingleadsto oxidative stress, lowers antioxidant levels in the testes, thereby disrupting spermatozoa formation. The antioxidant content in pineapple is expected to prevent and repair damage caused by oxidative stress. Objective: To investigate the effects of pineapple juice administration on sperm viability in Wistar rats exposed to cigarette smoke. Methods: Anexperimentalstudywasconductedwithapost-testonlygroupdesigninvolving 25maleWistarratsdividedinto5groups:K(notreatment),K+(exposuretocigarettesmoke only),T1(exposuretocigarettesmokeand1mlofpineapplejuiceperday),T2(exposureto cigarettesmokeand2.5mlofpineapplejuiceperday),andT3(exposuretocigarettesmoke and 4 ml of pineapple juice per day). All groups received treatment for 28 days. Results: ThemeanpercentageofspermatozoaviabilityinWistarratswasK=90.00;K(+)= 76.80; T1 = 76.80; T2 = 89.20; T3 = 93.40. Significant differences were observed between groupsKandK+andT1,withrespectivep-valuesof0.005.Significantdifferenceswerealso found between groups K+ and T2 (p = 0.008) and T3 (p = 0.001), while no significant difference was observed in group T1 (p = 1.000). Furthermore, there were significant differencesbetweengroupsT1andT2(p=0.008)andT3(p=0.001).Finally,nosignificant difference was found between groups T2 and T3 (p = 0.331). Conclusion and Recommendations: Pineapple juice can prevent and inhibit spermatozoa damage caused by free radicals from cigarette smoke. Further research should measure oxidative stress, provide exposure to each rat, and use varying doses for optimal effectiveness
Accounting for Goodwill: A Critical Analysis of the Impairment-Only Approach
Authors: Sander Hendrik
Published: November 2024

The present paper addresses the following questions: Is non-arbitrary goodwill impairment testing possible? Would amortization be a better alternative than the impairment-only approach and, if so, should there be case-specific amortization periods or should accounting standards require a uniform amortization period? Empirical evidence suggests that non-arbitrary goodwill impairment testing is not feasible. However, academic literature provides very little in terms of a theoretical debate. To fill this gap, the present paper theoretically substantiates these empirically inspired concerns regarding arbitrariness of goodwill impairment testing and illustrates this substantiation with simple examples. Referring to the question whether an amortization approach is less arbitrary, it theoretically substantiates concerns regarding the arbitrariness of determining case-specific amortization periods. On the basis of this analysis, the paper recommends replacing the impairment-only approach by an amortization approach with uniform amortization periods.
Comparison of waterline corrosion of a weathering steel in static and dynamic simulated seawater
Authors: Li Zhuoran , Wu Jun , Huang Jinrong , Yang Hua , Ge Honghua , Meng Xinjing , Zhao Yuzeng
Published: November 2024

Waterline corrosion behavior of a weathering steel in static and dynamic simulated seawater was studied by means of wire beam electrode (WBE), scanning electron microscopy, and Fourier transform infrared spectroscopy in this paper. The results show that the distribution of cathode and anode on WBE surface was relatively stable under static condition with large cathode and anode structure. The region near the waterline was always a stable cathode, and the total anode current density decreased with time and basically stabilized after 6 days. Under dynamic condition, a large anode structure was formed on the WBE surface within 1 day, and the anodic current density rapidly decreased with time. The anode area gradually decreased and the WBE surface showed an alternating distribution of small anode and cathode after 3 days. The total anodic current density continued to decrease with time after 6 days. Under dynamic condition, the mass transfer of oxygen and other substances related to electrode reactions was accelerated, so that the anode surface was rapidly corroded in the early stage of immersion and covered by denser corrosion products, resulting in a positive shift in the potential and electrode reversal of some anode areas in the later stage.
The fullness conjectures for products of elliptic curves
Authors: Kahn Bruno , Demarche Cyril
Published: November 2024

We prove all conjectures of Chapter 7 of Yves André’s book (2004) in the case of products of elliptic curves.
The proofs given here are simpler and more uniform than the previous proofs in known cases.
Finite generation of fundamental groups for manifolds with nonnegative Ricci curvature whose universal cover is almost 𝑘-polar at infinity
Authors: Huang Hongzhi
Published: November 2024

In this article, we prove that the fundamental group

π
1

⁢

(
M
)

\pi_{1}(M)

of a complete open manifold 𝑀 with nonnegative Ricci curvature is finitely generated, under the condition that the Riemannian universal cover

M
̃

\tilde{M}

satisfies an “almost 𝑘-polar at infinity” condition.
Additionally, such

π
1

⁢

(
M
)

\pi_{1}(M)

is virtually abelian.
Furthermore, we demonstrate that the base point of any tangent cone at infinity of such a manifold is nearly a pole.
In the case where

M
̃

\tilde{M}

exhibits almost maximal Euclidean volume growth, we prove that 𝑀 deformation retracts to a closed submanifold 𝐹 which is diffeomorphic to a flat manifold, provided 𝑀 is not simply connected.
A Lindemann–Weierstrass theorem for 𝐸-functions
Authors: Delaygue Éric
Published: November 2024

𝐸-functions were introduced by Siegel in 1929 to generalize Diophantine properties of the exponential function.
After developments of Siegel’s methods by Shidlovskii, Nesterenko and André, Beukers proved in 2006 an optimal result on the algebraic independence of the values of 𝐸-functions which generalizes the Lindemann–Weierstrass theorem.
Since then, it seems that no general result was stated concerning the relations between the values of a single 𝐸-function.
We prove that André’s theory of 𝐸-operators and Beuker’s result lead to a Lindemann–Weierstrass theorem for 𝐸-functions in its “linear independence” formulation.
As a consequence, we show that all transcendental values at algebraic arguments of an entire hypergeometric function are linearly independent over

Q
̄

\overline{\mathbb{Q}}

.
Surface modification of sepiolite and its application in one-component silicone potting adhesive
Authors: Shi Yiyi , Liu Jianqiao , Yang Pengyu , Wang Hongzhen , Guan Shanshan , Cui Jiyuan
Published: November 2024

In this study, the utilization of sepiolite (SEP), renowned for its remarkable water absorption capacity, in a one-component silicone potting adhesive was explored to evaluate its impact on the efficacy of tunnel crack injection adhesive. Initially, SEP underwent high-temperature calcination, and X-ray diffraction and thermogravimetric tests were conducted to analyze the influence of calcination on its crystal structure and water-absorption capacity, respectively. Following this, various coupling agents were employed to modify the SEP, and their respective impacts on the performance of the tunnel crack-filling adhesive were investigated. The outcomes revealed that KH550 exhibited the most effective modification. Subsequent analysis delved into the effect of varying the dosage of KH550 on adhesive performance, demonstrating optimal cost-effectiveness at a dosage of 2 phr. Furthermore, a comparative assessment of the adhesive’s performance in wet and dry interfaces revealed that the addition of SEP resulted in comparable bond strength between wet and dry interfaces, indicating minimal influence from the wet interface.
A new method for identifying reservoir fluid properties based on well logging data: A case study from PL block of Bohai Bay Basin, North China
Authors: Song Jian , Zhang Hao , Guo Jianhong , Han Zihao , Guo Jianchao , Zhang Zhansong
Published: November 2024

The characterization of reservoir fluid properties is a crucial component of oilfield operations, as it provides a vital data foundation for the development and optimization of oilfield work programs. However, the complexity of water-flooded, along with the mixed data from drilling and cable logging, and the inherently weak foundational research, make the evaluation of water-flooded formations difficult. Therefore, this article aims to address this challenge by proposing a new reservoir fluid identification method. In this article, an improved Markov variation field model is applied to map geophysical logging data and is integrated with a quantum hybrid neural network (HQNN) to address the nonlinear correlations between logging data. By integrating the non-standard Markov variation field with HQNN, this article constructs a novel reservoir fluid identification model. Experimental results demonstrate that the model achieves a recognition accuracy of 90.85% when trained on feature images mapped from logging data. Furthermore, the superiority of the HQNN was validated through eight sets of comparative experiments. Additionally, the model was further validated using logging data from blind wells within the block, demonstrating high predictive accuracy and proving its effectiveness for reservoir fluid identification in the PL block. The method proposed in this article not only addresses the challenge of evaluating water-flooded layers in the absence of key logging curves but also offers a novel approach to reservoir fluid identification using geophysical logging data. The non-standard Markov transition field model is employed to map logging data into feature images, offering a new perspective on the application of geophysical logging data in practical reservoir analysis.
Magnetically recyclable Fe3O4@SiO2 supported phosphonium ionic liquids for efficient and sustainable transformation of CO2 into oxazolidinones
Authors: Hu Yu Lin , Zhang Qiu Yun , Zhang Yu Tao
Published: November 2024

Carbon dioxide (CO2) as a C1 building block to synthesize 2-oxazolidinones is an environmental and sustainable approach. In this work, we present the synthesis and characterization of novel heterogeneous catalysts by immobilizing homogeneous phosphonium ionic liquids (ILs) onto magnetic Fe3O4@SiO2, which could realize the cycloaddition of CO2 and a range of aziridines into 2-oxazolidinones under mild conditions of 90°C and 1 atm CO2 pressure. The immobilized IL Fe3O4@SiO2@PILCeCl4 demonstrated remarkable catalytic activity in the CO2 transformation, leading to high to excellent yields (87–95%) as well as excellent selectivities (98–99.2%) in the absence of solvent at reaction times of 8–10 h, from alkyl- or aryl-substituted and N-alkyl-substituted aziridines. The heterogeneous and magnetic nature of the catalyst facilitated effortless recovery and efficient reusability, which could be easily separated and reused up to five consecutive cycles without considerable decrease in catalytic activity. This protocol provides a novel and efficient strategy for producing 2-oxazolidinones, with potential applications in chemical transformation of CO2 into value-added chemicals.
Open-loop response of Fischer–Tropsch reactions to manipulation of temperature and pressure
Authors: Piña-Contreras Salvador , Jiménez-García Gladys , Hernández-Escoto Héctor , Maya-Yescas Rafael
Published: November 2024

In the present work, the Fischer–Tropsch synthesis (FTS) is carried out through simulation. This reaction uses a gas mixture, called synthesis gas, composed of carbon monoxide rich in hydrogen (H2/CO > 2.5), to form medium and long chain hydrocarbons (C5
+). For the modeling of this system, a packed bed reactor with a cobalt-based catalyst has been considered, which promotes the polymerization of methylene species, selective to linear paraffins and 1-olefins. The objective of this work is evaluating the impact of operation variables, such as feed flows and temperature, coolant flow, system pressure, on the chain length distribution of the products. Current operating policies does not promote selectivity to the production of synthetic gasolines (C5–C12), because of the drastic increase in the temperature inside the reactor as consequence of the high exothermicity of the reactions (ΔH = −170 kJ mol−1). It has been impossible to maintain these reactions within the appropriate temperature range (475–520 K) without the presence of an external agent that manages the available heat, for this project molten sales have been proposed as a cooling medium (KNO3–NaNO3), based on its favorable heat transfer characteristics. By analyzing the system responses, the open loop model has allowed us to explore multiple hydrocarbon production scenarios, specifically highlighting the increasing of the yield of synthetic gasoline (48 wt%) in the products, from a defined molten salts (coolant) countercurrent flow range (7.05E-2 at 2.50E-1 m/h). It was noticed that this heat management allowed us to obtain a specific range of hydrocarbons, representing the opportunity to control the growth of the chain length. In conclusion, this analysis will lay the foundations for the design control policies, which help to increase current yields of synthetic gasoline, making it possible to achieve the desired quality for the immediate future.
Influence of topic-prominent L1s on the use of L2 English copula be: a corpus-based study
Authors: Sung Min-Chang , Kim Kitaek , Nam Bora
Published: November 2024

This study explores the influence of first language (L1) on the acquisition of second language (L2) English, specifically examining the use of copula be as a topic marker. Although prior research suggests that L1 transfer may impact L2 acquisition of copula be, the evidence remains inconclusive. To address this issue, the study analyzes the use of be in L2 English spoken by learners with topic-prominent L1s (viz., Mandarin Chinese, Japanese, Korean) and those with non-topic-prominent L1s (viz., Filipino). Using the ICNALE corpus, the study investigates whether L1 topic-prominence affects the use of be in L2 English. The findings reveal that L2-English learners with topic-prominent L1s use copula be more often with definite NPs than those with non-topic-prominent L1s, indicating the influence of L1 topic-prominence properties on the use of copula be. Additionally, learners from topic-prominent L1s more frequently produce nontargetlike topic-comment structures using be verb (e.g., restaurant is many people eat their foods). Based on these findings, the study discusses the implication of L1 transfer effects in L2 acquisition and emphasizes the importance of a more global and refined understanding of language variation in L2 teaching and learning.
Text mining of syntactic complexity in L2 writing: an LDA topic modeling approach
Authors: Huang Zhiyun , Jiang Zhanhao
Published: November 2024

The present study provides an overview of syntactic complexity (SC) in second language (L2) writing research, employing the Latent Dirichlet Allocation (LDA) topic modeling approach. Analyzing 470 abstracts sourced from the WoS Core Collection (2005–2023) and Scopus (1978–2023), this investigation explores the broad spectrum of research themes in SC in L2 writing. By employing perplexity and coherence tests, the study identifies the optimal number of topics in the model as five: writing quality, proficiency, genres, SC development, and task-based conditions. The finding reveals that: (1) In cross-sectional studies, the interplay among writing quality, proficiency levels, and genres often involves studying one variable as reliant on the others. Additionally, there is a growing inclination toward regarding phrasal structures as more dependable complexity indicators. (2) Longitudinal investigations predominantly emphasize the evolution of SC, yet there’s a scarcity of exploration in continuation writing tasks. (3) Regarding measurement metrics, a transition from broader SC evaluations to more intricate assessments is evident, though several studies lack thorough examinations, particularly in continuation tasks.
Comparative performance of PPP software packages in atmospheric delay estimation using GNSS data
Authors: Nagib Reham , Abdelfatah Mohamed A. , Mousa Ashraf K. , EL-Fiky Gamal S.
Published: November 2024

This study utilizes Precise Point Positioning (PPP) for accurate GNSS-based positioning with a single receiver. Seven PPP techniques (GAPS, APPS, CSRS, Magic-GNSS, gLAB, Pride, GAMP) are evaluated for zenith tropospheric delay (ZTD) estimates, comparing them with Radiosonde (RS) and Radio Occultation (RO) data from the same day (36th in 2014). RO data is categorized based on RO Events (ROE) – GNSS observation distances (10 km, 50 km, 50:100 km), while RS data is limited to three stations (ASWN, FARF, PHLW). Generally, the differences among PPP techniques are within 5 cm, except for PRIDE-PPPAR, which exhibits semi-constant zenith wet delay (ZWD) values. Root Mean Square (RMS) and t-test comparisons with RO data reveal that APPS has the lowest RMS values for ZWD at 10 km, while CSRS-PPP performs well with increasing distance. Magic-GNSS demonstrates the highest RMS values at 10: 50 km, while APPS at 50:100 km. RMS values typically increase with greater ROE-GNSS distances, except for Magic-GNSS, which decreases. t-tests indicate statistically insignificant differences across PPP techniques, except for APPS and gLAB in the 50:100 km case. Comparisons with RS data indicate that CSRS-PPP achieves the lowest RMS values for ZWD at ASWN and PHLW, while Magic-GNSS and CSRS-PPP excel at FARF. However, Magic-GNSS, GAMP, GAPS, and Pride yield the highest RMS values at ASWN (00:00), (12:00), FARF, and PHLW, respectively. t-tests show statistically insignificant differences across PPP techniques for the three stations, except for APPS and Pride at ASWN and gLAB at PHLW. These findings demonstrate that CSRS-PPP consistently provides reliable ZWD assessments across various conditions, contributing to enhanced accuracy in GNSS-based atmospheric studies. The comparison of PPP techniques offers valuable insights into the strengths and limitations of each method, with implications for improving atmospheric modeling, positioning applications, and broader GNSS-based research in weather forecasting and climate monitoring.
A family-centric, comprehensive nurse-led home oxygen programme for neonatal chronic lung disease: home oxygen policy evaluation (HOPE) study
Authors: Legge Nele , Fitzgerald Dominic , Stack Jacqueline , Popat Himanshu
Published: November 2024

Objectives

Considerable variation and little objective evidence exists to guide the use of supplemental oxygen therapy in infants with neonatal chronic lung disease (nCLD) after hospital discharge. We developed a new policy utilizing regular oximetry downloads to help determine commencement and titration of low flow oxygen. The aim of this policy is to improve safety and uniformity in practice and potentially lead to improvements in outcomes including the number of infants being discharged on home oxygen therapy (HOT) and length of stay (LOS).

Methods

This single-centre pre- and post-implementation study included 86 and 94 infants <32 weeks’ gestation (pre- vs. post-implementation) meeting definition of nCLD. The primary outcomes were (1) successful implementation of the new policy, (2) changes in number of patients discharged on HOT and (3) in LOS. Secondary outcomes were changes in feeding mode at discharge, total length of HOT, readmission to hospital within the first year of life and neurodevelopmental outcomes at 8 months post menstrual age amongst infants treated with HOT.

Results

The policy was successfully implemented with 100 % of infants with nCLD receiving downloads in the post-implementation epoch. Pre-implementation 36 % (31 of 85) of infants with nCLD were treated with HOT vs. 17 % (16 of 94) post-implementation (p=0.03). There was no significant difference in LOS or any of the secondary outcomes.

Conclusions

A protocolised approach to decision making using predetermined parameters regarding the need for supplemental oxygen in neonates with nCLD is practical and achievable and may result in fewer neonates requiring HOT.
Notiz über eine Kantplakette von 1924
Authors: Kulenkampff Jens
Published: November 2024

In 1924 the artist Luise Staudinger issued a bronze medal featuring a portrait of Kant on one side and a famous passage from Kant on the other: “Two things fill the mind with ever new and increasing admiration and reverence […]: the starry heavens above me and the moral law within me.” To this Staudinger added an illustration of a naked young man kneeling with outstretched arms, described by the artist as a man in prayer. Yet this does not seem to fit the meaning of Kant’s words. This paper shows that Luise Staudinger was implicitly referring to her father, Franz Staudinger. In his writings, Staudinger taught that he who truly lives up to the moral law always does what he ought to do out of his own free will and with devotion. It is in fact devotion (Hingabe) that is the key to Luise Staudinger’s illustration. The young man is not in prayer; instead, the figure symbolizes a state of mind, namely obedience to the moral law out of devotion to it.
Dissertatio 15C revisited: Concept and Body in Kant’s Problems of Directionality
Authors: Villaverde López Guillermo
Published: November 2024

This article focuses on the relationship between Kant’s reference to our own body in the context of problems of directionality and the type of resources that, according to him, are necessary to distinguish left and right and to orient ourselves in space. It challenges the almost universally accepted idea that the principle formulated in Dissertatio 15C (namely, that two incongruent counterparts cannot be distinguished by notae) is fatally flawed. While arguing that this principle is correct in its strongest formulation, the article offers a unified line of reasoning that runs precisely from Dissertatio 15C to the presence of the body in 1768/1786 and extends to include several important features of the Transcendental Aesthetic of the first Critique. The final part of the paper explores some of the implications of this reading for Kant’s theory of space and its development.
Zeros distribution and interlacing property for certain polynomial sequences
Authors: Guo Wan-Ming
Published: November 2024

In this article, we first prove that the Hankel determinant of order three of the polynomial sequence

{

P

n

(

x

)

=

∑

k
≥
0

P

(

n
,
k

)

x

k

}

n
≥
0

{\left\{{P}_{n}\left(x)={\sum }_{k\ge 0}P\left(n,k){x}^{k}\right\}}_{n\ge 0}

is weakly (Hurwitz) stable, where

P

(

n
,
k

)

P\left(n,k)

satisfies the recurrence relation

P

(

n
,
k

)

=

(

a

1

n
+

a

2

)

P

(

n
−
1
,
k

)

+

(

b

1

n
+

b

2

)

P

(

n
−
1
,
k
−
1

)

,

P\left(n,k)=\left({a}_{1}n+{a}_{2})P\left(n-1,k)+\left({b}_{1}n+{b}_{2})P\left(n-1,k-1),

with

P

(

n
,
k

)

=
0

P\left(n,k)=0

wherever

k
∉

{

0
,
1
,

…

,
n

}

.

k\notin \left\{0,1,\ldots ,n\right\}.

The stability of a polynomial is closely associated with the interlacing property, which is based on the Hermite-Biehler theorem. We also show the interlacing property of the polynomial sequence

(

U

n

(

x

)

)

n
≥
0

,

{\left({U}_{n}\left(x))}_{n\ge 0},

which satisfies the following recurrence relation:

U

n

(

x

)

=

(

α

n

x
+

β

n

)

U

n
−
1

(

x

)

+

(

u

n

x

2

+

v

n

x

)

U

n
−
1

′

(

x

)

{U}_{n}\left(x)=\left({\alpha }_{n}x+{\beta }_{n}){U}_{n-1}\left(x)+\left({u}_{n}{x}^{2}+{v}_{n}x){U}_{n-1}^{^{\prime} }\left(x)

based on the Hermite-Biehler theorem. As applications, we obtain the weak (Hurwitz) stability of the Hankel determinant of order three for the row polynomials of the (unsigned) Stirling numbers of the first kind, the Whitney numbers of the first kind, and show the interlacing property of Eulerian polynomials, Bell polynomials, and Dowling polynomials.
Crystal structure of 4,4′-bis(dibromomethyl)-1,1′-biphenyl, C14H10Br4
Authors: Zhong Kai-Long , Zhou Yue , Zhang Tian-Yu , Yang Chao-Bo
Published: November 2024

C14H10Br4, tetragonal, P43212 (no. 96), a = 6.8288(8) Å, c = 31.988(6) Å, V = 1491.7(5) Å3, Z = 4, R
gt(F) = 0.0540, wR
ref(F
2) = 0.1479, T = 193 K.
Analysis of variable fluid properties for three-dimensional flow of ternary hybrid nanofluid on a stretching sheet with MHD effects
Authors: Yasmin Humaira , Ullah Jan Saeed , Khan Umar , Islam Saeed , Ullah Aman , Muhammad Taseer
Published: November 2024

This study presents a novel model for variable fluid properties of a ternary hybrid nanofluid with base fluid polymer suspended on a three-dimensional stretching sheet under the influence of magnetohydrodynamic forces. Viscosity and thermal conductivity are temperature-dependent. This model has potential for use in nanotechnology, particularly in the shaping and design of surfaces for devices that can stretch or contract, wrap, and paint. The nonlinear equations in charge of this physical problem are derived by using similarity transformations. The fluid behavior is examined using the Reynolds viscosity model. The coupled nonlinear governing equations and the necessary boundary conditions are solved using the shooting technique with RK-4. The numerical calculations, including velocity and temperature profiles, are presented graphically to give the results a physical interpretation. The table discusses skin friction and Nusselt numbers at various physical parameters. The study’s findings show that changing the stretching parameter causes a significant change in the flow characteristics. Particularly, the thickness of the boundary layer decreases as the volume fraction of nanoparticles rises. Furthermore, because temperature-dependent viscosity is taken into account, as the viscosity parameter increases, so does the temperature. Key results specify that the Nusselt number

Nu

{\rm{Nu}}

increases with the increase in temperature-dependent viscosity

α

\alpha

, while decreases with the increase in thermal conductivity

ϵ

\epsilon

parameters. Impact of

α

\alpha

shows more convective heat transfer. Greater values of

ϵ

\epsilon

reduce the effectiveness of heat transfer.
Enhancing geographical access to cardiovascular disease healthcare services in Lagos State, Nigeria
Authors: Addie Oluwaseun , John Taiwo Olalekan
Published: November 2024

Cardiovascular diseases (CVDs) are the leading cause of global mortality, and three-quarters of the world’s deaths from CVDs occur in low- and middle-income countries. Improving spatial access to care facilities is a way of reducing the disease burden through early detection and treatment. Determining the number of facilities to provide and the locations in order to improve accessibility is central to healthcare facility planning. The maximal covering location problem (MCLP) was used in the identification and determination of where to place additional CVD treatment facilities in Lagos State for better accessibility. The primary objective of this study was to optimize the placement of CVD facilities to maximize coverage for both patients and non-patients alike. The optimization model utilized data on the population of Lagos State, the locations of CVD patients, the location of existing CVD care facilities, and the locations of general hospitals (GHs) within the state. The MCLP implementation was carried out using the maxcovr. The results of the models indicated that the addition of two facilities at the Isolo and Ile-Epo GHs would enhance CVD patient coverage from 70 to 87.4%, reducing the average travel distance from 9,038 to 6,466 m. Similarly, the introduction of two facilities at the Ikorodu and Ajegunle GHs improved population coverage from 40.3 to 70.8%, reducing the average travel distance of 18,788 m by over 5,000 m. These findings are expected to offer valuable insights for public health decision-makers who face the challenge of prioritizing limited budgets.
Bridging the gap: The role of geographic proximity in enhancing seed sustainability in Bandung District
Authors: Saidah Zumi , Wulandari Eliana , Hapsari Hepi , Alamsyah Raden Trizaldi Prima , Carsono Nono , Kawashima Shigekazu , Kang Seung Won
Published: November 2024

Climate change poses mounting challenges to agriculture in the Bandung District, Indonesia, and across the Global South. Seeds are the foundation of resilient food systems, and sustainable seed systems are essential for adaptation. This study offers a unique, holistic investigation of seed sustainability within the Bandung District. Utilizing multidimensional scaling and an independent t-test on a surveyed sample of 100 farmers across 8 villages, we analyze the interwoven social, economic, ecological, institutional, and technological dimensions shaping seed sustainability within the region. A core finding reveals the impact of geographic proximity to the government center on economic sustainability within the seed systems. Further, this analysis demonstrates the importance of policies promoting decentralized agricultural support, enhanced seed-saving infrastructure, and accessible farmer education programs to promote farmer agency, food security, and district-wide agricultural resilience. Findings transcend the context of Bandung, informing sustainable seed development practices in both regional and global contexts.
Adapting to heat-health vulnerability in temperate climates: current adaptation and mitigation responses and future predictions in Aotearoa New Zealand
Authors: Muhamad Siti Nurfahirah , Mohd Shabri Nur Shabrina Azreen , Cotter James David , Bolton Annette , How Vivien , Lim Fang Lee , Md Akim Abdah , Karuppiah Karmegam
Published: November 2024

Introduction

Climate change is raising global temperatures, leading to more extreme heat events, even in temperate climates like Aotearoa|New Zealand (A|NZ). The impact of rising temperatures and the adequacy of planning measures remain underexplored. This paper highlights A|NZ’s anticipated heat-health challenges by analyzing vulnerable populations and assessing current response systems, thereby reinforcing the need for system-level redress, mitigation and adaptation.

Content

A scoping review examined the impact of heat and existing mitigation and adaptation responses for vulnerable populations in temperate regions, with a focus on A|NZ. Additionally, temperature trend analysis was conducted for current and projected trends using Climate CHIP for six major heat-affected cities in A|NZ to assess the recognition of heat as a societal concern.

Summary and Outlook

The review identified mitigation and adaptation strategies for existing vulnerable groups and discovered other potential vulnerable groups in A|NZ, including Indigenous people (Māori), Pacific communities, low-income groups, migrants, and visitors. Temperature trends show an increasing pattern, suggesting heightened future heat-related impacts on these populations. This review reveals A|NZ’s growing vulnerability to rising temperatures, particularly among high-risk groups, and calls for stronger mitigation and adaptation strategies to address future heat-health risks.
Magnetic nanoparticles for efficient heavy metal removal: synthesis, adsorption capacity, and key experimental parameters
Authors: Hawezy Hawar J. Sadiq , Qader Aryan Fathulla , Omer Rebaz A. , Ali Layth I. Abd
Published: November 2024

Heavy metals are toxic, non-biodegradable pollutants that pose serious risks to human health and the environment, even at trace concentrations. The contamination of drinking water and groundwater by heavy metals requires urgent attention. Nanotechnology has advanced significantly over the past decade, offering innovative solutions for water purification, particularly through the adsorption of heavy metal ions using nanomaterials. This study focuses on the synthesis of magnetic nanoparticles, their adsorption capacity, and the desorption process. Additionally, the effects of key experimental parameters – such as contact time, ion concentration, pH, temperature, ionic strength, and adsorbent dose – on the removal efficiency of metal ions are examined. The findings underscore the potential of magnetic nanoparticles for effective heavy metal remediation in water.
Involvement of the VGF/BDNF axis in the neuropathology of Alzheimer’s disease and its potential role in diagnosis and treatment
Authors: Colín-Martínez Elizabeth , Arias Clorinda
Published: November 2024

The brain is a highly plastic organ that continually receives and integrates signals to generate functional and structural changes and homeostatic adaptations throughout life. Alterations in some signaling pathways that mediate these responses can impact brain plasticity, accelerate brain aging and potentially lead to neurodegeneration. There is substantial evidence that two important signaling pathways activated by neurotrophins, nonacronymic (VGF) and brain-derived neurotrophic factor (BDNF), are involved in substantial functions stimulating neuronal growth, differentiation, and circuit establishment during development and neuronal maintenance and plasticity in the mature brain. In this review, we present evidence that these two pathways and their interactions are central players in cognitive performance and alterations in pathological aging, particularly in conditions such as Alzheimer’s disease (AD). Finally, we suggest specific avenues for future research on the basis of recent findings suggesting these molecules are diagnostic biomarkers and putative therapeutic tools to prevent, delay or improve AD neuropathology.
Historical narrative and enrichment of the meaningful horizon of cultural worlds
Authors: Gubman Boris , Anufrieva Karina
Published: November 2024

Built on the results of collective experience expressed in language, cultural worlds are given to each of their inhabitants as integral ensembles constantly developing on the basis of unlimited semiosis via communication. Rooted in the very way of human intersubjectivity, communicative ability, and existence in time, historical narration serves as an important tool for increasing the meaningful potential and diachronic depth of cultural worlds. It should have integrity, thematic and plot certainty, problematic character, a chronotope system chosen by the author, as well as an efficient intrigue and composition focused on the intended reader who is able to decode its content. The historical narrative, unlike the literary one, should be based on truthful and reliable empirical data, despite the fact that the linguistic description in both cases assumes a connection between the past and the present. The historical narratives themselves, from the point of view of their epistemological status, have only greater or lesser reliability, since they depend on the interpretative intentions of their authors. The unpredictability of an event may trigger a confrontation between different kinds of narratives, undermining the power of the existing Encyclopedia that describes a cultural world. This problem can be fruitfully approached today on a cooperative platform of hermeneutics, semiotics, and analytical philosophy.
Latest developments in biomaterial interfaces and drug delivery: challenges, innovations, and future outlook
Authors: Patel Saraswati , Salaman Samsi D. , Kapoor Devesh U. , Yadav Richa , Sharma Swapnil
Published: November 2024

An ideal drug carrier system should demonstrate optimal payload and release characteristics, thereby ensuring prolonged therapeutic index while minimizing adverse effects. The field of drug delivery has undergone significant advancements, particularly within the last two decades, owing to the revolutionary impact of biomaterials. The use of biomaterials presents significant due to their biocompatibility and biodegradability, which must be addressed in order to achieve effective drug delivery. The properties of the biomaterial and its interface are primarily influenced by their physicochemical attributes, physiological barriers, cellular trafficking, and immunomodulatory effects. By attuning these barriers, regulating the physicochemical properties, and masking the immune system’s response, the bio interface can be effectively modulated, leading to the development of innovative supramolecular structures with enhanced effectiveness. With a comprehensive understanding of these technologies, there is a growing demand for repurposing existing drugs for new therapeutic indications within this space. This review aims to provide a substantial body of evidence showcasing the productiveness of biomaterials and their interface in drug delivery, as well as methods for mitigating and modulating barriers and physicochemical properties along with an examination of future prospects in this field.
Functional Performance of Patients after Neurosurgery and Endovascular Treatment of Unruptured Intracranial Aneurysms
Authors: Ścisło Lucyna , Pluta Judyta , Paplaczyk-Serednicka Małgorzata , Staszkiewicz Magdalena , Bodys-Cupak Iwona , Madej Dorota
Published: November 2024

Introduction. The methods of treating cerebral vascular aneurysms: neurosurgical clipping of the aneurysm and endovascular embolization are associated with the risk of complications that are difficult for the patient, including impaired functional capacity. Determining these disorders will allow for planning patient care and better quality of functioning after surgery.
Aim. Assessment and comparison of functional capacity of patients after classic neurosurgical and endovascular treatment of unruptured intracranial aneurysms.
Material and Methods. The study was conducted in the Clinical Department of Neurosurgery and Neurotraumatology with the participation of 94 patients (70.2% women and 29.8% men) after endovascular embolization of an intracranial aneurysm (75.5%) and traditional neurosurgical aneurysm clipping procedure (24.5%). The method of diagnostic survey, analysis of medical records and observation was used. Standardized tools were used in the form of scales: Functional Capacity Scale (FCS), Repty Functional Index (RFI), modified Rankin Scale (mRS), Numerical Rating Scale (NRS).
Results. In total, after the procedures, 75.5% of patients were self-sufficient according to the FCS scale, 73.4% were self-sufficient according to the RFI scale, and 80.9% were functional according to the mRS scale (for all scales, p<0.001). The average FCS value after the classic procedure was 35.8 points, after the endovascular procedure it was 43.7 points, (p<0.001). The deterioration of physical functioning was significantly dependent on pain (p<0.005), age (p<0.05) and complications (p<0.05).
Conclusions. Patients treated with the endovascular method experienced less pain, had fewer complications and had better physical functioning than patients treated with the neurosurgical method. (JNNN 2024;13(3):112–118)
Characteristics of the Functional Independence Measure (FIM) Scale in Terms of Neurological Conditions
Authors: Filipska-Blejder Karolina , Durszlewicz Jakub , Ślusarz Robert
Published: November 2024

The Functional Independence Measure (FIM) scale is used to assess an individual’s functional capacity. It covers a wide variety of areas of daily life: self-care, sphincter control, transfers, locomotion, communication and social cognition. This tool plays an important role in the professional and academic work of nurses. Therefore, the aim of this paper is to characterize the FIM scale and its use in the care of neurological patients. The FIM scale has been shown to be an accurate and reliable tool for assessing activities of daily living. The FIM consists of 18 items assessing 6 areas of function. The items fall into two domains: motor (13 items) and cognitive (5 items). The respondent can receive from 1 (total assistance — the respondent performs less than 25% of the activity independently) to 7 points (full independence — the analyzed activity is performed safely and quickly) for each activity to be assessed. Many researchers also use the FIM as one of their measurement tools when designing and conducting research. (JNNN 2024;13(3):119–123)
When Scientists Disagree
Authors: Hoffmann Christoph
Published: November 2024

In science studies, history and philosophy of science, and history of science, scientific controversies are supposed to reveal how science works. Controversy, in this sense, is not primarily a research object but a conceptual tool developed to model current or past events in the sciences with the aim of capturing the very nature of science. Treating controversy as a conceptual tool, I discuss which aspects of scientific disagreements are highlighted by this tool, which aspects are relegated into the background, and what remains unconsidered or ignored. I present my observations through the example of the discussion of color vision in fish and bees between physiologist Carl von Heß and zoologist Karl von Frisch in the 1910s and early 1920s. I discuss four points, each of which plays a particular role in controversy research: (1) the interest in the end and not the beginning of controversies, (2) the typical presentation of a controversy as a clearly defined confrontation of positions, (3) the assumption that controversies follow rules, and (4) the idea that controversies must begin almost automatically when certain conditions are met. As Helga Nowotny emphasized, in case of disagreement, non-controversy seems just as plausible as open contradiction.
Bridging Financial Inclusion to Water and Sanitation: Insights from Indonesia
Authors: Suryadi Christian , Faisa Madjid Alyasa  , Ahmad Komarulzaman  , Heriyaldi
Published: November 2024

Lack of access to improved drinking water and sanitation has been a major worldwide challenge, especially in Indonesia. This study investigates the impact of financial inclusion on access to improved drinking water and sanitation among households in Indonesia. Using binary probit regression analysis complemented with dominance analysis, we assess the relative importance of various factors, including financial inclusion, socio-economic status, and residence, in determining access to improved drinking water and sanitation services. Our findings highlight the critical role of urban residence in facilitating access to improved drinking water and sanitation, with urban areas demonstrating significantly higher access rates. Furthermore, participation in savings emerges as a more influential factor compared to credit participation, particularly in improving access to sanitation facilities. This suggests that while both savings and credit contribute to improved access, savings play a more pronounced role in addressing the higher upfront costs associated with sanitation infrastructure. Additionally, socio-economic factors such as household expenditure and education level are found to significantly influence access to improved water and sanitation, underscoring the importance of addressing broader socio-economic disparities. Overall, our study provides valuable insights and emphasizing the need for comprehensive strategies for policymakers to enhance essential access to clean water and sanitation.