bluuebunny/crossref_metadata_2025 huggingface dataset:
The properties of a new fractional g-Laplacian Monge-Ampère operator and its applications
Authors: Wang Guotao , Yang Rui , Zhang Lihong
Published: September 2024

In this article, we first introduce a new fractional

g

g

-Laplacian Monge-Ampère operator:

F

g

s

v

(

x

)

≔
inf

P.V.

∫

R

n

g

v

(

z

)

−
v

(

x

)

∣

C

−
1

(

z
−
x

)

∣

s

d
z

∣

C

−
1

(

z
−
x

)

∣

n
+
s

∣
C
∈
C

,

{F}_{g}^{s}v\left(x):= \inf \left\{\hspace{0.1em}\text{P.V.}\hspace{0.1em}\mathop{\int }\limits_{{{\mathbb{R}}}^{n}}g\left(\frac{v\left(z)-v\left(x)}{{| {C}^{-1}\left(z-x)| }^{s}}\right)\frac{{\rm{d}}z}{{| {C}^{-1}\left(z-x)| }^{n+s}}| C\in {\mathcal{C}}\right\},

where

g

g

is the derivative of a Young function and the diagonal matrix

C

{\mathcal{C}}

is positive definite, which has a determinant equal to 1. First, we establish some crucial maximum principles for equations involving the fractional

g

g

-Laplacian Monge-Ampère operator. Based on the maximum principles, the direct method of moving planes is applied to study the equation involving the fractional

g

g

-Laplacian Monge-Ampère operator. As a result, the nonexistence of the positive solutions, symmetry, monotonicity, and asymptotic property of solutions are obtained in bounded/unbounded domains.
Mixed Hodge structures and Siegel operators
Authors: Ma Shouhei
Published: September 2024

In this paper, we study mixed Hodge structures on the cohomology of locally symmetric varieties and give an application to modular forms.
After proving vanishing of some Hodge numbers, we focus on the weight filtration on the last Hodge subspace of the middle degree cohomology.
We prove that the weight filtration coincides with the corank filtration on the space of modular forms of canonical weight defined by the Siegel operators, and calculate the graded quotients.
As an application, we deduce surjectivity of the total Siegel operators in many cases, and identify an obstruction space in the remaining case.
The Evolution of Entrepreneurial Opportunity: The Case of a Finnish Start-up in the Telecom Industry
Authors: Tuomisalo Teemu , Hannibal Martin
Published: September 2024

This study represents a longitudinal in-depth investigation of entrepreneurial opportunity development in a Finnish start-up company. A qualitative interpretive case study method is applied here that enables us to provide in-depth findings to promote opportunity-related research in the fields of entrepreneurship and International Entrepreneurship. We create an empirical process model that unlocks the longitudinal development of entrepreneurial opportunity and internal and external features contributing to it. The findings indicate that the development process represents a transformation from the assessment of demand into the creation of actual solutions. In addition, the process model reveals how the objectives and motivations of individuals, as well as external features in the industry and events, drive the development of entrepreneurial opportunity.
Modular structure theory on Hom-Lie algebras
Authors: Mao Dan , Guan Baoling , Chen Liangyun
Published: September 2024

The aim of this paper is to transfer the restrictedness theory to
Hom-Lie algebras. The concept of restricted Hom-Lie algebras, which
is introduced in [S. Bouarroudj and A. Makhlouf,
Hom-lie superalgebras in characteristic 2,
Mathematics 11 2023, 24, Paper No. 4955], will be used in this paper. First, the
existence and uniqueness of p-structures on a Hom-Lie algebra is
studied. Then the definition of a restrictable Hom-Lie algebra is
given and the equivalence relation between restrictable Hom-Lie algebras
and restricted Hom-Lie algebras is constructed. Finally, the p-envelopes
of a Hom-Lie algebra are defined and studied.
Beta-cyclodextrin–Phyllanthus emblica emulsion for zinc oxide nanoparticles: Characteristics and photocatalysis
Authors: Kaliyaperumal Viswanathan , Alharbi Raedah Ibrahim , Rajendhran Hariprasath , Gopal Dhinakar Raj , Al-Otibi Fatimah Oleyan
Published: September 2024

This study presents a new approach for producing zinc oxide nanoparticles (ZnONPs) utilizing an emulsion of beta-cyclodextrin (β-CD) and Phyllanthus emblica fruit extract. When synthesized, the particles were around 90 ± 5 nm in size. The zeta potential investigation yielded a value of −27.1 mV. The generated ZnONPs exhibited 83.70% anti-oxidant activity as well as good radical scavenging capabilities. The catalytic activity of ZnONPs was investigated using rhodamine B dye, and they displayed that maximum photocatalytic degradation was found to be 90.32% when exposed to UV light and 50.5% when not exposed to UV light. The kinetic investigation of photocatalytic degradation employs pseudo-first-order rate kinetics, with a rate constant of 2.5 × 10−2 under UV irradiation and 1.1 × 10−2 without irradiation. Anti-bacterial tests against Escherichia coli bacteria demonstrated the particles’ anti-bacterial characteristics. Anti-cancer studies were carried out using KB-31 cancer cells at varying particle concentrations. The studies confirmed that the particles produced are anti-cancer. In conclusion, this study reports a new green synthesis method to fabricate ZnONPs with high anti-microbial, anti-oxidant, and anti-cancer properties and suitable for various biomedical applications.
Anisotropic obstacle Neumann problems in weighted Sobolev spaces and variable exponent
Authors: Zineddaine Ghizlane , Sabiry Abdelaziz , Melliani Said , Kassidi Abderrazak
Published: September 2024

In this paper we focus on a certain class of anisotropic obstacle problems governed by a Leray–Lions operator. This problem is subject to homogeneous Neumann boundary conditions. By applying truncation techniques and the monotonicity method, we establish the existence of entropy solutions for the problem studied in the framework of anisotropic weighted Sobolev spaces with variable exponent.
The overdetermined Cauchy problem for the hyperbolic Gellerstedt equation
Authors: Rogovoy Alexander V. , Kalmenov Tynysbek S. , Kabanikhin Sergey I.
Published: September 2024

Overdetermined boundary value problems and the minimal operators generated by them are extremely important in the description of regular boundary value problems for differential equations, and are also widely used in the study of local properties of solutions. In addition, for inverse problems of mathematical physics arising from applications, when determining unknown data, it is necessary to study problems with overdetermined boundary conditions, which is reflected in the study of problems, including for hyperbolic equations and systems, arising in physics, geophysics, seismic tomography, geoelectrics, electrodynamics, medicine, ecology, economics and many other practical areas. Thus, the study of overdetermined boundary value problems is of both theoretical and applied interest. In this paper, a criterion for the regular solvability of the overdetermined Cauchy problem for the Gellerstedt equation and the minimal differential operator generated by it in a hyperbolic domain is established, as which both the case of a characteristic triangle and the case of a more general domain with fairly general assumptions about the boundary of the domain are considered. Due to overdetermined boundary conditions, the problem under consideration will be ill-posed in the general case, therefore, for its regular solvability, additional conditions must be imposed on the initial data. In other words, we have considered the inverse problem: to determine what requirements the initial data of the problem, in particular the right part of the Gellerstedt equation, should meet, in question, so that the overdetermined Cauchy problem is regularly solvable. The proof is based on the Gellerstedt potential, the properties of solutions of the Goursat problem in the characteristic triangle, and the properties of special functions.
High-order approximation of Caputo–Prabhakar derivative with applications to linear and nonlinear fractional diffusion models
Authors: Singh Deeksha , Pandey Rajesh K. , Bohner Martin
Published: September 2024

In this study, we devise a high-order numerical scheme to approximate the Caputo–Prabhakar derivative of order α ∈ (0, 1), using an rth-order time stepping Lagrange interpolation polynomial, where

3
≤
r
∈
N

$3\le r\in \mathbb{N}$

. The devised scheme is a generalization of the existing schemes developed earlier. Further, we adopt the discussed scheme for solving a linear time fractional advection–diffusion equation and a nonlinear time fractional reaction–diffusion equation with Dirichlet type boundary conditions. We show that the discussed method is unconditionally stable, uniquely solvable and convergent with convergence order O(τ

r+1−α
, h
2), where τ and h are the temporal and spatial step sizes, respectively. Without loss of generality, applicability of the discussed method is established by illustrative examples for r = 4, 5.
Research Trends in Public Libraries as Public Spheres in Library and Information Science: Topic Modelling with Latent Dirichlet Allocation
Authors: Sugeno Yuki , Koizumi Masanori
Published: September 2024

Public libraries and public spheres have been widely studied over the past three decades. In recent years, several studies have comprehensively reviewed past research results to reveal the main issues, concerns, and research topics in the field of public libraries and public spheres. These studies have elucidated that the research theme of public libraries as a ‘meeting place’ has received increasing attention. They also noted the need for quantitative approaches in this field. Addressing this requirement, we conducted quantitative topic modelling using latent Dirichlet allocation and established an overview of research topics in the literature related to public libraries as public spheres. The following four periods emerged: first period (1993–2003), second period (2004–2010), third period (2011–2015), and fourth period (2016–2022). By analysing a cross-section of research topics from all periods, we elucidated the transitions of research themes developed in the research field. In addition, our comparison of topic model maps and topics over the years revealed that research topics appear to have become increasingly complex. Research topics on meeting places in public libraries have emerged continually and changed over time, covering (1) places for individual civic group activities, (2) public spaces where patrons face diversity and pluralism, (3) community spaces where patrons foster social trust, and (4) social spaces where patrons build social capital in the community. This result indicates that the research on public libraries as public spheres has gradually developed based on these venues being meeting places and will continue to progress.
Frequency and clinicopathological correlation of gastrointestinal polyps: A six-year single center experience
Authors: Abdulqader Goran Mohammed Raouf
Published: September 2024

Background

Most gastrointestinal polyps are asymptomatic; therefore, assessing symptoms associated with cancer and precancerous polyps is essential.

Objectives

The aim of this study was to study the histopathology, number, distribution, and degree of polyps’ dysplasia in terms of age, gender, and clinical presentation.

Methods

This study was performed on patients who underwent endoscopy from July 2015 to August 2021 in Sulaimaniyah, Iraq. Surgical pathology records of patients were analyzed for age, sex, nature of the polyps, number, site, histopathology, degree of dysplasia, resection margins and patients’ presented clinical data.

Results

The mean patients’ age was 51.4 ± 17.1 years, and most were males (51.9%). The most common indications for endoscopy were screening (28.62%), and the least common was weight loss (4.46%). Neoplastic polyps were common among patients with hematemesis (75%), while non-neoplastic were common among those with dyspepsia (60%). Most polyps were solitary in upper (80.8%) and lower gastrointestinal tract (GIT). Most polyps in the upper GIT were non-neoplastic (87.3%), while most lower proximal/distal GIT polyps were neoplastic. Most neoplastic polyps showed low-grade dysplasia (94.4%), and most high-grade dysplasia was a villous type (24.1%).

Conclusions

Initiation of the screening program is highly recommended as a facilitating method for the early detection of multiple and high-grade gastrointestinal polyps. Thus, screening programs can reduce the rate of mortality of carcinoma in this locality.
Integrating machine learning and multi-omics analysis to develop an immune-derived multiple programmed cell death signature for predicting clinical outcomes in gastric cancer
Authors: Li Chunhong , Hu Jiahua , Li Mengqin , Fan Xiao , Mao Yiming
Published: September 2024

Objectives

Metastasis of tumor cells is the leading reason for mortality among patients diagnosed with gastric cancer (GC). Emerging evidence indicated a strong correlation between programmed cell death (PCD) and the invasion and metastasis of tumor cells. Therefore, we aimed to develop a programmed cell death signature to assess the prognosis and therapeutic efficacy in GC patients.

Methods

Here, we collected 1911 PCD-related genes from 19 different PCD patterns, and developed an immune-derived multiple programmed cell death index (MPCDI) using the integrating machine learning and multi-omics analysis, and systematically dissected heterogeneity in GC patients. Subsequently, we divided GC patients into two categories, namely high-MPCDI group and low-MPCDI group, using the median MPCDI as the threshold. We performed a comprehensive analysis of the clinical characteristics, somatic mutations, immune infiltration, drug sensitivity, and immunotherapeutic efficacy of the two groups.

Results

Survival and immunotherapy response analyses indicated that the high-MPCDI patients experienced a poorer overall survival (p=0.018) and were more resistant to commonly used chemotherapeutic drugs but benefited from immunotherapy compared to the low-MPCDI patients. In addition, MPCDI was confirmed as a standalone risk factor for overall survival, and nomograms can provide a precise tool for the clinical diagnosis of GC patients.

Conclusions

Taken together, the MPCDI can serve as a robust clinical diagnostic classifier to guide medication administration and improve outcomes in GC patients.
Reducing the severity of incidents or emergency in Estonian emergency calls
Authors: Hennoste Tiit , Rääbis Andriela , Laanesoo-Kalk Kirsi , Rumm Andra
Published: September 2024

The aim of the article is to analyze the calls to the Estonian Emergency Response Centre, focusing on instances where callers reduce the severity of incident or emergency in their first turn. The data comprise 39 calls from the Corpus of Emergency Calls of the University of Tartu. The analysis reveals that callers employ mitigating words and negative turn-initial utterances to reduce the severity. These words indicate the caller’s uncertainty about the information provided or suggest that the reported incident or emergency is minor. The utterances are syntactically and semantically (but not prosodically) completed clauses followed by a second part of the clause construction containing specific information about the caller’s issue. Functionally, these utterances serve as assessments falling into three groups based on the information they project. Some assessments project uncertain information, explicitly expressing uncertainty about the information or using the epistemic marker ma=i=tea ‘I don’t know’. The second group of assessments project information about an incident that the caller does not qualify as an emergency. The last group projects a potential incident or emergency using variants of the utterance ei juhtund midagi ‘nothing happened’. In addition, we offer explanations for why callers reduce the severity of the incident or emergency and demonstrate that reducing severity does not lower the probability of sending assistance. This indicates that call-takers do not rely on callers’ assessments when deciding whether the help is needed.
Effect of ZnO particle size on the radiation shielding efficiency of B2O3–BaO–ZnO glass system
Authors: Almuqrin Aljawhara H. , Sayyed M. I. , Alharbi F.F. , Elsafi M.
Published: September 2024

This study analyzes the ZnO particle size’s effect on glass samples’ radiation shielding ability. Four glass samples with differing micro and nanoparticle ZnO content were investigated at four energies, 0.060, 0.662, 1.173, and 1.333 MeV. The investigated glasses are a B2O3–BaO–ZnO glass system and are composed of 30 % micro ZnO (30 M), 20 % micro ZnO and 10 % nano ZnO (20 M−10 N), 10 % micro ZnO and 20 % nano ZnO (10 M−20 N), and lastly 30 % nano ZnO (30 N). The theoretical XCOM software was employed to validate the experimental LAC values of the glasses, revealing that for at all energies, the values obtained from the two methods agreed with each other well. The glasses’ HVL, MFP, and RSE were then compared. The HVL values at all energies decreased as more nano ZnO was introduced into the glass system, reaching a minimum of 1.947 cm at 0.662 MeV for the 30 N sample. This sample also had the lowest MFP at all energies, while the 30 M glass had the highest, such as 0.088 and 0.070 for 30 M and 30 N respectively at 0.060 MeV. The RSE of a 1 cm thick sample of each of the glasses was tested and found that the 30 N sample exhibited the greatest RSE. The relative percent deviation between the 30 N and 30 M glasses was also analyzed, which highlighted the difference between 30 N’s greater LAC values compared to 30 M at all energies.
Dissecting the immune response of CD4+ T cells in Alzheimer’s disease
Authors: Kostic Milos , Zivkovic Nikola , Cvetanovic Ana , Basic Jelena , Stojanovic Ivana
Published: September 2024

The formation of amyloid-β (Aβ) plaques is a neuropathological hallmark of Alzheimer’s disease (AD), however, these pathological aggregates can also be found in the brains of cognitively unimpaired elderly population. In that context, individual variations in the Aβ-specific immune response could be key factors that determine the level of Aβ-induced neuroinflammation and thus the propensity to develop AD. CD4+ T cells are the cornerstone of the immune response that coordinate the effector functions of both adaptive and innate immunity. However, despite intensive research efforts, the precise role of these cells during AD pathogenesis is still not fully elucidated. Both pathogenic and beneficial effects have been observed in various animal models of AD, as well as in humans with AD. Although this functional duality of CD4+ T cells in AD can be simply attributed to the vast phenotype heterogeneity of this cell lineage, disease stage-specific effect have also been proposed. Therefore, in this review, we summarized the current understanding of the role of CD4+ T cells in the pathophysiology of AD, from the aspect of their antigen specificity, activation, and phenotype characteristics. Such knowledge is of practical importance as it paves the way for immunomodulation as a therapeutic option for AD treatment, given that currently available therapies have not yielded satisfactory results.
Multivariate Stochastic Volatility with Co-Heteroscedasticity
Authors: Chan Joshua , Doucet Arnaud , León-González Roberto , Strachan Rodney W.
Published: September 2024

A new methodology that decomposes shocks into homoscedastic and heteroscedastic components is developed. This specification implies there exist linear combinations of heteroscedastic variables that eliminate heteroscedasticity; a property known as co-heteroscedasticity. The heteroscedastic part of the model uses a multivariate stochastic volatility inverse Wishart process. The resulting model is invariant to the ordering of the variables, which is shown to be important for volatility estimation. By incorporating testable co-heteroscedasticity restrictions, the specification allows estimation in moderately high-dimensions. The computational strategy uses a novel particle filter algorithm, a reparameterization that substantially improves algorithmic convergence and an alternating-order particle Gibbs that reduces the amount of particles needed for accurate estimation. An empirical application to a large Vector Autoregression (VAR) is provided, finding strong evidence for co-heteroscedasticity and that the new method outperforms some previously proposed methods in terms of forecasting at all horizons. It is also found that the structural monetary shock is 98.8 % homoscedastic, and that investment and the SP 500 index are nearly 100 % determined by fat tail heteroscedastic shocks. A Monte Carlo experiment illustrates that the new method estimates well the characteristics of approximate factor models with heteroscedastic errors.
Alteridade, subjetividade, identidade e variantes enunciativas
Authors: Sobral Adail , Giacomelli Karina
Published: September 2024

Nos termos da perspectiva bakhtiniana seguida neste ensaio de discussão teórica, pode-se dizer que os sujeitos mobilizam, em seus projetos enunciativos, saberes referentes à linguagem (o sistema da língua utilizado de acordo com os contextos). Isso a nosso ver remete ao domínio das variantes, compreendidas para além do sistema da língua, ou seja, como possibilidades da língua que são exploradas de acordo com os contextos de uso, que implicam diferentes valorações segundo as situações enunciativas em que os sujeitos produzem enunciados. Neste trabalho abordamos, antes de tudo, a questão da formação da identidade, via linguagem, da perspectiva bakhtiniana, para, adiante, fazer um esforço de vincular valoração e variação sociolinguística e, assim, defender a ideia de que as variantes são enunciativas, algo que, quem sabe, pode ajudar a defender uma ideia de Labov, a de que não se deveria falar de sociolinguística, uma vez que toda linguística é, por definição, social.
Sumário
Authors: RLE Revista
Published: September 2024

Sumario
Femoral version and its clinical relevance in adult hip preservation surgery for developmental dysplasia of the hip
Authors: Su Yingze , Chen Kangming , Wu Jinyan , Zhu Junfeng , Chen Xiaodong
Published: September 2024

Femoral version (FV) is more widely adopted with the definition as the angle between the long axis of the femoral neck and the tangent line of the posterior femoral condyles on the axial plane, and the normal range between 5 and 20°.

FV can be measured by imaging and functional tests. Cross-sectional CT including both the hip and the knee is the typically used imaging technique, yet variation exists according to the different landmarks used. As MRI investigations are routinely performed preoperatively, and protocols can be easily adopted to include version measurement, they are frequently used as an alternative to CT and offers several advantages.

Abnormal FV has adverse effects on the biomechanics and musculoskeletal health of the whole lower limb. It affects the lever arm of muscles and the forces that the hip and patellofemoral joints suffer, and can lead to disorders such as osteoarthritis and impingement.

In adult hip preservation surgery for developmental dysplasia of the hip (DDH), abnormal FV is sometimes accompanied by other morphological abnormities of the hip, a more severe DDH, and can help predict postoperative range of motion (ROM), and postoperative impingement.

Currently, the most frequently used surgical technique for abnormal FV is femoral derotational osteotomy.

Many controversies are left to be solved, including the specific origin of FV, the indication for femoral derotational osteotomy, especially in patients with combined DDH and abnormal FV, and the explicit compensation mechanism of abnormal FV by tibial torsion.
Corticosteroid injections for knee osteoarthritis offer clinical benefits similar to hyaluronic acid and lower than platelet-rich plasma: a systematic review and meta-analysis
Authors: Bensa Alessandro , Sangiorgio Alessandro , Boffa Angelo , Salerno Manuela , Moraca Giacomo , Filardo Giuseppe
Published: September 2024

Purpose

Intra-articular corticosteroid (CS) injections for knee osteoarthritis (OA) management are endorsed by several scientific societies, while the use of hyaluronic acid (HA) and platelet-rich plasma (PRP) is more controversial. Aim of the study was to quantify and compare the clinical effectiveness of CS injections with respect to HA and PRP in patients with knee OA.

Methods

The search was conducted on PubMed, Cochrane, and Web of Science following the PRISMA guidelines. Randomized controlled trials (RCTs) on the comparison of CS injections and HA or PRP injections for the treatment of knee OA were included. The minimal clinically important difference (MCID) was used to interpret the clinical relevance of the improvements at different follow-ups up to 12 months. The study quality was assessed using the Cochrane RoB-2 tool and the GRADE guidelines.

Results

Thirty-five RCTs were included (3348 patients). The meta-analysis comparing CS and HA revealed no difference in terms of WOMAC improvement, while HA showed superior VAS pain improvement at long-term follow-up (P = 0.011), without reaching the MCID. PRP offered a superior WOMAC improvement compared to CS at short- (P = 0.002), mid- (P < 0.001, exceeding the MCID), and long-term (P < 0.001, exceeding the MCID) follow-ups. PRP offered a superior VAS improvement at mid- (P < 0.001, exceeding the MCID) and long-term (P = 0.023) follow-ups.

Conclusion

CS injections for knee OA offer similar results to HA and PRP only at short term, while there is an overall superiority of PRP at longer follow-ups. This difference is not only statistically significant but also clinically relevant in favour of PRP.
Teriparatide in postmenopausal osteoporosis: uncovering novel insights into efficacy and safety compared to other treatments – a systematic review and meta-analysis
Authors: Arthur Vithran Djandan Tadum , Essien Anko Elijah , Rahmati Masoud , Opoku Michael , Keon Yon Dong , López Sánchez Guillermo F , Koyanagi Ai , Smith Lee , Il Shin Jae , Xiao Wenfeng , Liu Shuguang , Li Yusheng
Published: September 2024

Objective

The aim of the study was to evaluate the efficacy and safety of teriparatide compared to other treatments for postmenopausal osteoporosis.

Methods

A review of studies from 2000 to January 2023 analyzed randomized controlled trials on postmenopausal women treated with teriparatide (PTH 1–34), comparing it to placebo or other osteoporosis treatments. The analysis focused on bone mineral density (BMD), bone turnover markers, and clinical outcomes, employing Review Manager 5.4.1 and the RoB 2 tool for bias assessment.

Results

Our analysis of 23 randomized controlled trials (RCTs) found that PTH (134) treatment significantly increased lumbar spine BMD (mean difference (MD) = 0.02, 95% CI: 0.01–0.03) and femoral neck BMD (MD = 0.01, 95% CI: 0.00–0.01). However, there were no significant changes in total hip and radial bone BMD among the 3536 and 2046 participants, respectively. We also found that PTH (1–34) increased P1NP in a larger cohort (n = 1415) when compared to osteocalcin (n = 206). Although the risk of adverse events increased (relative risk (RR) = 1.65, 95% CI: 1.32–2.07), the incidence of fractures decreased significantly (RR = 0.57, 95% CI: 0.45–0.072), with no significant difference observed in mortality rates between treatment and control groups.

Conclusion

Teriparatide improves lumbar spine and femoral neck BMD in postmenopausal women. Particularly notable is the novel finding regarding its effect on radius BMD, an area less explored in previous research. Despite an uptick in adverse events, the marked decrease in fracture incidence confirms its clinical utility for high-risk osteoporosis patients, highlighting the necessity for ongoing investigations into its full skeletal effects.
El vocabulario del feminismo en los diccionarios del español
Authors: Freixa Judit , Fernández-Silva Sabela
Published: September 2024

Esta investigación se sitúa en la intersección entre lexicografía y neología y escoge, como caso de aplicación, el vocabulario del feminismo. Así, se valora el tratamiento lexicográfico que ha recibido el léxico del discurso feminista en distintos diccionarios generales del español y se reflexiona acerca de los criterios que parecen ser más decisivos para la inclusión de nuevas palabras. Evaluando criterios de uso como la frecuencia y la antigüedad, se establece cuáles son los vocablos que presentan una mayor diccionariabilidad (es decir, un mayor valor para el diccionario a partir del uso social) y se intenta correlacionar esta cualidad con su aparición en más o menos diccionarios. El análisis se centra en una muestra de 60 términos del discurso feminista consignados en glosarios y diccionarios feministas publicados en la última década en distintos medios generalistas o especializados y pretende incidir en el debate sobre la ideología en los diccionarios.
Priming effect of pigeon pea and wood biochar on carbon mineralization of native soil organic carbon and applied municipal solid waste compost
Authors: Mounissamy Vassanda Coumar , Parla Chandrashekar Deeksha , Adhikari Tapan , Sarkar Abhijit , Lenka Sangeeta , Selladurai Rajendiran , Yadav Dinesh Kumar , Saha Madhumonti , Meena Bharat Prakash , Ajay  , Saha Jayant Kumar
Published: September 2024

A laboratory incubation experiment was conducted for 36 days to study the effect of pigeon pea biochar (PPB) and wood biochar (WB) on carbon mineralization of native soil organic carbon (SOC) and municipal solid waste compost (MSWC) applied to soil. The MSWC addition enhanced soil respiration by 2-fold (231 mg C kg-1 soil) over the control (118 mg C kg-1 soil). The PPB addition significantly (P < 0.05) increased cumulative loss of carbon as CO2, whereas WB significantly decreased the cumulative loss of C over control. Addition of PPB at 5% and 10% levels increased SOC mineralization (positive priming) +22.9% and +31.2%, respectively; whereas reduction in SOC mineralization (negative priming) was noticed in WB (5% and 10%) treated soils by -3.1% and -21.7%, respectively. Similarly, WB induced strong negative priming effects (-21.9% and -29.5%), while PPB caused a weak positive priming effect (+3.0% and +11.6%) at 5% and 10% levels on mineralization of added labile carbon substrate (MSWC), respectively. Results indicate the hardwood (Prosopis juliflora) biochar exhibits refractory properties that inhibit mineralization of both native SOC and applied organic compost (MSWC), and thereby it can be used as an amendment to stabilize native and applied organic matter in soil, which may significantly contribute to soil carbon sequestration.
Coupling kinetic modeling with artificial neural networks to predict the kinetic parameters of pine needle pyrolysis
Authors: Xu Langui , Zhang Lin , He Xiangjun , He Wenbin , Wang Ziyong , Niu Weihua , Wei Dong , Ran Yi , Wu Wendan , Cheng Mingjun , Liu Jundou , Huang Ruyi
Published: September 2024

The pyrolysis behavior of biomass is critical for industrial process design, yet the complexity of pyrolysis models makes this task challenging. This paper introduces an innovative hybrid model to quantify the pyrolysis potential of pine needles, predicting the entire process of their pyrolysis behavior. Through experimental analyses and kinetic parameter calculations of pine needle pyrolysis, the study employs a kinetic model with a chemical reaction mechanism. Additionally, it introduces an improved dung beetle optimization algorithm to accurately capture the primary trends in pine needle pyrolysis. The developed artificial neural network model incorporates meta-heuristic algorithms to address process error factors. Validation is based on experimental data from TG at three different heating rates. The results demonstrate that the hybrid model exhibits strong predictive performance compared to the standalone model, with coefficients of determination (R²) of 0.9999 and 0.999 for predicting the conversion degree and conversion rate of untrained data, respectively. Additionally, the standard errors of prediction (SEP) are 0.249% and 0.449% for predicting the conversion degree and conversion rate of untrained data, respectively.
Dualidad de Matlis generalizado, sobre un anillo conmutativo Noetheriano
Authors: Mendoza Quispe Wilfredo , Duran Quiñones Sofía , Rubio Gallarday Marco Antonio , Olano Díaz Willian Cesar
Published: September 2024

Let R be a Noetherian commutative ring and let E be the minimal injective cogenerator of the category of R-modules. Belshoff, Enochs and García Rozas are three people who introduced in [6] the so-called I-reflexive Matlis modules where I is an ideal. In this context we present in the second section a brief introduction of the reflective modules and some of their properties, and in the third and last section we give the classification of reflective modules with respect to a minimal cogenerator E. A node M is said to be reflexive with respect to E if the map of M in Hom(HomR(M, E), E) is an isomorphism and thus we establish the classification of the R-modules M, which are reflexive with respect to E if and only if M has a finitely generated submodule S such that the quotients: M/S and R/anul(M) is complete Artinian and semilocal respectively.
Simulación numérica de trayectorias de proyectiles: Influencia de la fuerza de arrastre
Authors: Merma Marco , Monroy Oscar , Castillo Miguel
Published: September 2024

Este estudio se centró en una simulación numérica para describir las trayectorias de proyectiles en dos escenarios clave: movimiento en el espacio libre y movimiento en presencia de fuerzas de arrastre. Se utilizó un modelo simplificado de proyectil, representado como una esfera con radio r y masa m. La simulación se basó en el método de Euler-Richardson para calcular las posiciones a lo largo del tiempo. Los resultados del estudio destacan que las diferencias en los alcances horizontal y vertical están estrechamente vinculadas al tamaño y la masa del proyectil. Además, se demostró que la forma y el tamaño del proyectil influyen en la magnitud de la resistencia del aire, lo que afecta la trayectoria general. Este enfoque proporciona una comprensión práctica de cómo la fuerza de arrastre incide en el movimiento de los proyectiles.
Caracterización estructural y morfológica de superredes de Fe/Ti por reflectividad de rayos X y microscopía electrónica de transmisión de alta resolución
Authors: Yactayo M. , GHANBAJA Jaafar , Copie Olivier , Quispe Marcatoma Justiniano , Landauro Carlos , Rojas Sánchez Juan Carlos
Published: September 2024

Multilayers and superlattices consist of stacked thin films made of different materials, including magnetic and non-magnetic ones. These structures are used to produce electronic and spintronic sensors. Thin films are primarily grown using the sputtering technique. This study presents a superlattice with six stacks or periods (N=6) in the nanostructure: Glass/Ti(4.1 nm)/[Fe(2.3 nm)/Ti(1.8 nm)/Fe(2.3 nm)/Ti(4.1 nm)][6] grown by magnetron sputtering. The thickness and roughness of the sample were determined using low-angle X-ray reflectivity (XRR). In addition, a lamella was prepared using focused ion beam (FIB) for morphological analysis by high-resolution transmission electron microscopy (HRTEM). The values obtained from X-ray reflectivity were consistent with those obtained from HRTEM, allowing the growth process optimization of Fe/Ti thin films for the development of new kind of magnetic devices.
Study of the relationship of vascular problems in the orthostatic position - municipal guard of the city of Rio de Janeiro - a proposal for personal protection equipment
Authors: Chambriard Claude Jacques
Published: September 2024

This article discusses the etiology of Chronic Venous Insufficiency (CVI), with a study of the posture adopted by a group of workers (Municipal Guard), which can have medium-and long-term consequences, and which is so little discussed this kind of group. Through a literature review, it will be analyzed whether the position adopted during the work cycle is sitting or standing, for long periods can be a supporting factor in the etiology of the CVI.
Concussion prevention starts in the gym
Authors: K Sethi  Nitin
Published: September 2024

Concussions are common in combat sports such as boxing and mixed martial arts (MMA). In these sports every punch thrown to the opponent’s head is thrown with the intention of winning by causing a knockout (KO) which is nothing but a concussive head injury. Other acute traumatic brain injuries such as traumatic subdural hematoma (SDH), epidural hematoma (EDH), intracranial hematoma (ICH), subarachnoid hemorrhage (SAH) remain an omnipresent danger. Traumatic SDH is the most common boxing related mortality reported in medical literature. These combatants either collapse in the ring/cage or soon thereafter. Many perish due to the TBI. Others may survive due to a timely decompressive craniectomy but are left behind with severe and persistent neurological deficits. Analysis of some of these combat sports related mortalities suggest that the combatant may have suffered a concussion while sparring in training camp. A concussed boxer entering the ring is vulnerable to another concussive injury and second impact syndrome. It is thus imperative that concussions in training camps and gyms be recognized and attended to in a timely fashion.
Una metodología para la identificación y caracterización del paisaje en la cuenca alta del río Santo Domingo - Venezuela
Authors: Marquina Pérez Argenis , Badia Perpinyà Anna , Romagosa Casals Francesc , Mejía Barazarte Joel Francisco
Published: September 2024

El objetivo de esta investigación fue realizar una caracterización sistemática del paisaje en la cuenca alta del río Santo Domingo - Venezuela, a partir de una metodología combinada en la que se utilizó un enfoque multinivel basado en el análisis cartográfico y cualitativo para instrumentalizar los conceptos de Geosistema, Territorio y Paisaje con el propósito de delinear unidades de paisaje. La combinación del análisis cartográfico con distintas fuentes de datos, el análisis documental y fotográfico multitemporal y el análisis perceptual, consultivo y valorativo a partir de entrevistas a la ciudadanía local y a un grupo de expertos permitió definir tres unidades de paisaje con características biofísicas, dinámica geoeconómica y valores perceptuales bien diferenciados. Los procesos territoriales en cada una de las unidades de paisaje obedecen al aprovechamiento de recursos naturales específicos, estructurando redes geoeconómicas particulares, que a su vez generan impactos ambientales y culturales diferenciados. Esta diferenciación paisajística podría ser de gran utilidad para el diseño de estrategias que orienten las actividades productivas en el marco de una ordenación territorial y un turismo sostenible en la región.
La cordillera de los Andes en la filmografía: análisis e interpretación desde la perspectiva geográfica
Authors: Moreno-Muñoz Daniel , Luque Revuelto Ricardo Manuel , Giménez-García Rubén
Published: September 2024

La cordillera de los Andes es la cadena montañosa más larga del mundo, influye directamente en el territorio en aspectos como el clima, las comunicaciones o las relaciones sociales, y ha sido representada en múltiples ocasiones en producciones audiovisuales. En el artículo se indaga el papel que tiene la geografía en el desarrollo de las narraciones cinematográficas que tienen como marco la cordillera de los Andes, al dar a conocer imaginarios geográficos que se proyectan a través del cine. La investigación es de naturaleza analítico-descriptiva, con una metodología cuantitativa y la utilización de la técnica de la observación científica. Se seleccionaron un total de veintiún filmaciones en las que los Andes son protagonistas, y se analizaron los fenómenos geográficos existentes en este espacio geográfico. Los resultados muestran la existencia de numerosos rodajes en los que la trama se desarrolla en los Andes y el espectador puede contemplar fenómenos geográficos tanto físicos (el cambio climático o los conflictos ambientales) como humanos (las actividades económicas o el urbanismo). La relevancia de este estudio recae en que hasta la fecha no se ha realizado ninguna pesquisa acerca de la geografía de la cordillera vista a través del cine. Asimismo, este trabajo puede abrir nuevas investigaciones semejantes para otros espacios geográficos.
Explotación minera y conflictividad socioambiental en el páramo Cruz Verde-Sumapaz, Colombia, 2011-2021
Authors: Salas Barreto Angie Dayana , Estupiñan Cruz Angie Lorena
Published: September 2024

Este artículo comprende y analiza los sucesos ocurridos durante el periodo 2011-2021 en relación con las problemáticas socioambientales asociadas a la explotación minera en el Complejo Páramo Cruz Verde-Sumapaz (CPCVS) con el objetivo de identificar aquellos actores que tienen un rol dentro de la problemática, la toma de decisiones y los avances institucionales-normativos que inciden en el ordenamiento jurídico ambiental. Esta investigación se realizó con el enfoque cualitativo de tipo descriptivo a partir de la metodología para la gestión comunitaria de conflictos ambientales. Aporta una caracterización biogeográfica de los principales elementos socioambientales y una precisión de la temporalidad de los hechos más relevantes. Como resultado, se definen tres escenarios de debate, la ambigüedad en las disposiciones, desactualización normativa y excepciones de aplicabilidad, concluyendo que estos factores permitieron la explotación en el páramo, lo que ha generado un conflicto significativo en el ordenamiento jurídico ambiental.
Factors that influence complementarity and competition between medicinal plants and medicines of biomedical origin in an urban context
Authors: Oliveira Bianca Melo , Santoro Flavia Rosa , Ferreira Júnior Washington Soares
Published: September 2024

Intermedicality is understood as a space of interaction between different medical systems in a given location, which can result in competition or complementarity. In urban environments, intermedicality is common between the biomedical system and other systems. In these scenarios, it is important to understand the therapeutic strategies used by people to treat illnesses, to identify whether the treatment systems adopted lead to competition or complementarity. Among the various factors that can influence these strategies are: people's current and past contact with the rural environment, visits to biomedical environments and socioeconomic factors (income, education and age). This study investigated the therapeutic strategies linked to the complementary or competitive use of medicinal plants and biomedical drugs in an urban environment. The study was carried out in the urban perimeter of the city of Araripina-PE, using an online form addressed to its residents. The form was made up of questions about the therapeutic strategies employed by people, with dissemination through social media and face-to-face visits to institutions and public places. The survey involved 298 residents. Generalized Linear Models, binomial family, were used to assess the effect of the predictor variables on the response variables.  As a result, the best-fitting models showed that Complementarity was positively influenced by income and negatively by rural origin, and Competition was positively influenced by rural origin. This study suggests important mechanisms that may be regulating the use of medicinal plants and medicines of biomedical origin exclusively through competition or combined use of these resources in urban contexts.
Isoorientin alleviates ovalbumin-stimulated allergic rhinitis in mice by restoring Th1/Th2 balance
Authors: Huang Jianyi , Ji Ran , Qian Xueshen , Shen Yuli
Published: September 2024

Allergic rhinitis (AR) is a chronic, non-infectious inflammatory condition of the nasal mucosa mediated by IgE. There is a need for the development of novel medications to treat this ailment. Isoorientin is a naturally occurring flavonoid that possesses antioxidant, anti--inflammatory, and various other advantageous characteristics. However, its potential effects on AR remain unclear. This study evaluates the therapeutic effects of isoorientin on ovalbumin (OVA)-induced allergic rhinitis (AR) in mice and explores the underlying mechanism. Our study revealed that isoorientin administration effectively decreased the frequency of nose rubbing and sneezing in AR mice. The groups treated with isoorientin showed a significant decrease in serum levels of IgE and histamine, with reductions of 40% and 30%, respectively. Isoorientin ameliorated inflammation of the nasal mucosa and restored the Th1/Th2 balance. In addition, isoorientin inhibited the activation of the NF-κB pathway in nasal tissues. In summary, Isoorientin alleviates OVA-stimulated AR in mice by restoring Th1/Th2 balance and blocking the NF-κB pathway. Thus, isoorientin exhibits promise as a natural therapeutic agent for allergic rhinitis.
Gibberellin-regulated protein allergy and orange-induced anaphylaxis
Authors: Özdemir Öner
Published: September 2024

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EDUCAÇÃO CONTEXTUALIZADA E METODOLOGIAS ATIVAS NO ENSINO DE GEOGRAFIA DO SEMIÁRIDO
Authors: Cavalcante Leandro Vieira , Stefanie Bezerra Brenda , Santiago Lopes de Macedo Igor Tauan
Published: September 2024

O debate acerca da Geografia do Semiárido pressupõe a adoção de práticas didático-pedagógicas centradas na Educação Contextualizada, a qual pode ser aprimorada através do uso de metodologias ativas que facilitam o processo de ensino-aprendizagem. Nesse sentido, a partir dos direcionamentos teórico-metodológicos advindos da Educação Contextualizada, objetiva-se evidenciar de que maneira a utilização de metodologias ativas potencializa o ensino de Geografia do Semiárido. Para tanto, parte-se de um relato de experiências realizadas ao longo de três anos no componente curricular de Estudos Regionais do Semiárido, ministrado no curso de Geografia da Universidade Federal do Rio Grande do Norte, campus Caicó. Os dados analisados demonstram o potencial advindo do uso de metodologias ativas direcionadas ao ensino de Geografia do Semiárido, tomando como base os princípios da Educação Contextualizada. Observou-se que a adoção de metodologias ativas no ensino de Geografia do Semiárido contribuiu com a formação discente e com a melhoria do ensino-aprendizagem, de modo a estimular a realização de atividades que possibilitaram inovações metodológicas ativas, contextualizadas e de qualidade.
EDUCAÇÃO AMBIENTAL E SUSTENTABILIDADE NO SEMIÁRIDO POTIGUAR: FORTALECENDO A AGENDA 2030 EM MOSSORÓ-RN
Authors: Matias Guedes Maia Zildenice , Medeiros de Lima Sarah Rosania , Bezerra dos Santos Enaira Liany , Nayara da Silva Chagas Fabrizia , Toscano Lopes Barroso da Silva Hudson
Published: September 2024

O presente trabalho busca demonstrar como a Educação Ambiental pode e vem sendo executada em ações locais com vistas a fomentar nos indivíduos senso crítico e posição ativa em relação às problemáticas socioambientais locais, regionais e globais. Nesse sentido, o artigo apresenta a execução da Política Municipal de Educação Ambiental do município de Mossoró-RN através de diferentes metodologias utilizadas com o objetivo de promover a mobilização e sensibilização para uma Educação Ambiental transformadora na cidade de Mossoró-RN, no período de 2021 a 2022. A metodologia foi de relato de experiência, se concretizando a partir da execução e produção de relatórios de ações de sensibilização que ocorreram em diferentes espaços: escolas, comunidades locais, meios digitais e outros. As ações relatadas foram: produção de cartilhas voltadas à destinação adequada dos resíduos e preservação do Rio Apodi-Mossoró; Execução de drive thru de materiais recicláveis em pontos estratégicos da cidade de Mossoró-RN; Execução do Programa Embaixadores, Juventude e Cidades Sustentáveis; e coleta de resíduos eletrônicos junto ao programa RN+Limpo. Conclui-se que a variedade de abordagens empregadas para sensibilizar e mobilizar a comunidade não apenas ressalta a eficácia da implementação da Educação Ambiental em iniciativas locais, incentivando o desenvolvimento de cidadãos conscientes e comprometidos com a promoção do desenvolvimento sustentável, mas também demonstra como essas estratégias são essenciais para instigar o senso crítico e a participação ativa em relação às questões socioambientais em Mossoró-RN.