bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dynamic Persuasion and Strategic Search
Authors: Yao Yunfei (Jesse) 
Published: November 2023

Consumers frequently search for information before making decisions. Because their search and purchase decisions depend on the information environment, firms have a strong incentive to influence it. This paper endogenizes the consumer’s information environment from the firm’s perspective and endogenizes the search decision from the consumer’s perspective. We consider a dynamic model where a firm sequentially persuades a consumer to purchase the product. The consumer only wishes to buy the product if it is a good match. The firm designs the information structure. Given the endogenous information environment, the consumer trades off the benefit and cost of information acquisition and decides whether to search for more information. Given the information acquisition strategy of the consumer, the firm trades off the benefit and cost of information provision and determines how much information to provide. This paper characterizes the optimal information structure under a general signal space. We find that the firm only smooths information provision over multiple periods if the consumer is optimistic about the product fit before searching for information. Moreover, if the search cost for the consumer is high, the firm designs the information such that the consumer will be certain that the product is a good match and will purchase it after observing a positive signal. If the search cost is low, the firm provides noisy information such that the consumer will be uncertain about the product fit but will still buy it after observing a positive signal. This paper was accepted by Dmitri Kuksov, marketing. Funding: This work was supported by University of California, Berkeley, the Institute for Business Innovation [Research Grant], and the Center for Equity, Gender, and Leadership [Research Grants]. Supplemental Material: The online appendix is available at https://doi.org/10.1287/mnsc.2023.00994 .
Streamlines and topological transformation of modified vector Bessel–Gauss beams
Authors: Sepulveda-Rios Missael , Gutiérrez-Vega Julio C. 
Published: November 2023

We characterize the streamline patterns of the transverse electric (TE) and transverse magnetic (TM) modes of the vector-modified Bessel–Gauss (BG) beam, which is the Fourier-transformed version of the ordinary BG beam. We derive analytical expressions to approximate the streamline patterns produced by the superposition of TM and TE modes. An analysis of the effect on the streamlines of the vector BG beams produced by some polarization devices, e.g., linear retarders and spiral polarizers, is presented. Additionally, we study the geometrical phase induced by linear retarders into the TM mode of the field. This work contributes to the description and understanding of the vector structure of the focal field of Bessel–Gauss beams.
Telephone instructions improve the quality of bowel preparation for colonoscopy: A meta-analysis of randomized controlled trials
Authors: He Xueqian , Lei Xiaoju , Li Jiaqi , Li Peng 
Published: November 2023

Objective
To evaluate the effect of telephone instructions on the quality of bowel preparation in patients undergoing colonoscopy.

Methods
Online English databases (PubMed, Web of Science, Cochrane Library, and Embase) were screened for randomized controlled trials on telephone instructions regarding bowel preparation for colonoscopy from inception to April 15, 2022. After data extraction, the Review Manager software was used for meta-analysis.

Results
Nine randomized controlled trials with 3,836 patients were included in the meta-analysis. The rate of adequate bowel preparation was significantly higher in the telephone group than in the control group. The pooled relative risk (RR) was 1.17 (95% confidence interval [CI]: 1.05–1.30, P < 0.01). The pooled mean difference (MD) for the Boston Bowel Preparation Scale score was 1.32 (95% CI: 0.15–2.49, P < 0.05), and that for the Ottawa Bowel Preparation Scale score was −1.93 (95% CI: −2.35 to −1.51, P < 0.01). The polyp detection rate was significantly higher in the telephone group than in the control group (RR = 1.58, 95% CI: 1.23–2.04, P < 0.01), whereas no significant difference was noted in the adenoma detection rate between the groups (RR = 1.37, 95% CI: 0.97–1.94, P = 0.08).

Conclusion
Telephone instructions for patients undergoing colonoscopy significantly improved the quality of bowel preparation and increased polyp detection rate.
Educational outcomes of recess in elementary school children: A mixed-methods systematic review
Authors: Howie Erin K. , Perryman Kristi L. , Moretta Joseph , Cameron Laura 
Published: November 2023

Background
Recess provides a key physical activity opportunity for students in school, yet a wide range of recess requirements exist. To design optimal recess policies, the effect of recess on students’ educational outcomes must be better understood. Therefore, the purpose of this mixed-method systematic review is to identify and systematically evaluate research on the effects of recess on student educational outcomes, including behavior, cognitive performance and academic achievement.

Methods
A systematic search of the literature in ERIC (EBSCO), ProQuest Central, PsycINFO, Teacher Reference Center, MEDLINE Complete (EBSCO), and CINAHL Complete was performed through September 2022. Data was extracted from quantitative studies, and reported themes with exemplar quotes were extracted from qualitative studies. The Mixed Method Appraisal Tool (MMAT) was used to assess study quality.

Results
The search identified 932 articles, of which 13 were included in the review, including 8 quantitative and 5 qualitative studies. Eleven studies were conducted in the United States, and reported sample size of studies ranged from 12 to 11,624. Studies found mixed effects on student behavior, discipline referrals and academic achievement. Qualitative studies reported multiple benefits of recess including increased focus, improved problem solving and academic achievement.

Conclusions
Overall, evidence suggests positive benefits for behavior and either positive or null benefits of recess on academic achievement. However, evidence is limited by non-controlled study designs and diversity in outcome assessments. Additional quantitative evidence is needed to convince policymakers of the specific evidence supporting recess, but also to advise on the optimal recess policies and practices to improve student learning.
Assessing the Impact of the COVID-19 Pandemic on the Saudi Stock Market’s Performance and Sustainability
Authors: Yusuf Nadia , Ali Inass Salamah 
Published: November 2023

The research investigates the immediate impact of the COVID-19 pandemic on the Saudi Stock Exchange (Tadawul) by analyzing the Tadawul All Share Index (TASI). Relying on a robust quantitative methodology, the study involved de-seasonalizing daily TASI 'Close' values using a 7-day moving average and employing ARIMA modeling to examine time-series characteristics for periods before and after the first reported case of COVID-19 in Saudi Arabia on March 2, 2020. The study spanned 115 days, with 56 days before and 59 days after the outbreak, resulting in a total of 115 observations. Advanced statistical tests, including a two-sample t-test and effect size calculation (Cohen's d), were conducted to statistically validate the differences in market performance. The findings revealed a significant decrease in TASI performance post-COVID-19, with increased market volatility. This data aligns with global observations of market disruptions during the pandemic and contributes to the understanding of crisis-induced market behaviors. Finally, the obtained results offer valuable insights into the complexities of stock market responses to global health emergencies while further underscoring the importance of considering external factors in market dynamics.
Keywords: Stock market; COVID-19; financial market; performance; Tadawul; mortality; Saudi Arabia
Korelasi Kondisi Sosial Masyarakat Terhadap Timbulan Sampah Selama Pandemi Covid-19 di Provinsi Bali
Authors: Suryawan I Wayan Koko , Septiariva Iva Yenis , Suhardono Sapta , Sari Mega Mutiara 
Published: November 2023

Pandemi Covid-19 memberikan dampak kepada berbagai sektor sosial dan ekonomi, terutama pada industri pariwisata di Provinsi Bali. Kondisi ini juga menyebabkan terjadinya perubahan pola masyarakat sehingga menurunkan jumlah timbulan sampah. Faktor sosial ekonomi seperti total populasi, tingkat pengangguran, upah minimum, akses sanitasi, dan jumlah keluhan kesehatan merupakan yang hal yang perlu dikasi dalam suatu hubungan korelasi terhadap timbulan sampah. Hal ini juga dapat menjadi dasar pemerintah dalam mengambil kebijakan dalam penurunan timbulan sampah yang berkelanjutan. Tujuan dari penelitian ini adalah melihat hubungan korelasi kondisi sosial masyarakat terhadap timbulan sampah selama pandemi Covid-19 di Provinsi Bali. Pengambilan data dilakukan dengan mengambil data sekunder dari Badan Pusat Statistik (BPS) Provinsi Bali dan Sistem Informasi Persampahan Nasional (SIPSN). Metode awal pengujian data dilakukan dengan asumsi klasik, penentuan koefisien determinasi, hingga mendapatkan persamaan multikolinieritas. Hasil uji asumsi klasik memperlihatkan data yang digunakan dalam penelitian ini dapat untuk digunakan dalam uji multikolinieritas dan adjusted R Square sebesar 72.6% variasi timbulan sampah dapat dijelaskan oleh variasi dari kelima variabel total populasi, tingkat pengangguran, upah kerja minimum, akses sanitasi dan keluhan kesehatan. Keluhan kesehatan, upah minimum, dan total populasi merupakan kondisi yang signifikan mempengaruhi jumlah peningkatan timbulan sampah selama pandemi. Sedangkan tingkat pengangguran dan akses sanitasi dapat mengurangi jumlah timbulan sampah.
Kontaminan Logam Berat (Pb, Cd, dan Cu) pada Tanah dari Pemupukan Berbasis Jerami Padi
Authors: Hindarwati Yulis , Soeprobowati Tri Retnaningsih , Izzati Munifatul , Hadiyanto Hadiyanto 
Published: November 2023

ABSTRAKSuplemen unsur hara pada tanah untuk memperbaiki kualitas lahan dapat dilakukan dengan pemupukan baik organik maupun anorganik yang tidak terlepas dari bahan cemaran logam berat di dalamnya. Penelitian bertujuan untuk mengkaji kontaminan logam berat Pb, Cd, dan Cu pada tanah dan gabah serta produktivitas padi dari berbagai pemupukan. Penelitian menggunakan Rancangan Acak Kelompok (RAK) dengan 10 perlakuan 3 kali ulangan. Perlakuan terdiri dari: Kontrol (tanpa perlakuan), Jerami segar, Jerami melapuk, Kompos jerami, Pupuk NPK, NPK+jerami segar, NPK+jerami melapuk, NPK+kompos jerami, NPK+Pupuk kandang, dan Pupuk kandang. Hasil penelitian menunjukkan terdapat semua peningkatan kandungan logam berat Pb2+, Cd2+, dan Cu2+ pada tanah. Berbeda pada gabah yang serapan tertinggi logam berat Pb dan Cd tertinggi pada perlakuan NPK+Jerami Segar dan NPK+Jerami Melapuk pada logam berat Cu. Persentase penurunan serapan Pb dan Cd dari tanah ke gabah tertinggi dari pupuk Jerami Segar dan kompos jerami yaitu 14% dan 3%, tetapi kompos jerami meningkatkan serapan tertinggi terhadap logam berat Cu dari tanah ke gabah yaitu 94% dengan produktivitas padi tertinggi menggunakan pupuk NPK+Kompos Jerami.Kata kunci: Kontaminan Logam Berat, Pemupukan, Lahan SawahABSTRACTSupplementation of nutrients in the soil to improve land quality can be done by fertilizing both organic and inorganic which cannot be separated from the heavy metals in it. The aim of the study was to study the heavy metal contaminants Pb, Cd, and Cu in the soil and grain as well as the productivity of rice from various fertilizers. The study used a Randomized Block Design (RAK) with 10 treatments and 3 replications. The treatments consisted of: control (without treatment), fresh straw, rotted straw, straw compost, NPK fertilizer, NPK + fresh straw, NPK + weathered straw, NPK + straw compost, NPK + manure, and manure. The results showed all increases in the heavy metal content of Pb2+, Cd2+, and Cu2+ in the soil. In contrast to grain, the highest absorption of heavy metals Pb and Cd was highest in the treatment of NPK+Fresh Straw and NPK+Rotated Straw on Cu heavy metal. The highest percentage decrease in Pb and Cd absorption from soil to grain was from Fresh Straw and straw compost, namely 14% and 3%, but straw compost increased the highest absorption of Cu heavy metal from soil to grain, which was 94% with the highest rice productivity using NPK + Compost StrawKeywords: Heavy metal contaminants, Fertilization, Rice field
Potensi Kontaminasi Mikroplastik pada Kerang Konsumsi di Pulau Bangka
Authors: Pratiwi Fika Dewi , Notonegoro Hartoyo , Zulkia Dwi Rizka , Arsyad Sulastri 
Published: November 2023

Preferensi masyarakat Pulau Bangka terhadap berbagai jenis kerang konsumsi perlu mendapatkan perhatian, khususnya tingkat keamanan pangan, salah satunya dari ancaman mikroplastik. Permasalahan kontaminasi mikroplastik pada kerang, khususnya di Pulau Bangka perlu dikaji karena belum adanya penelitian terkait hal tersebut, padahal masyarakat sangat perlu mengetahui potensi kontaminasi mikroplastik yang dapat berdampak pada keamanan pangan dan kesehatan konsumen. Tujuan penelitian yaitu menganalisis karakteristik (jumlah dan jenis) mikroplastik pada tiga jenis kerang yang berasal dari perairan Pulau Bangka; menganalisis karakteristik mikroplastik pada air dan sedimen sebagai habitat kerang. Identifikasi dan kuantifikasi mikroplastik dilakukan secara visual dengan mikroskop pada bulan Maret-Mei 2022. Objek penelitian ditentukan secara purposive sampling, yaitu kerang darah (Anadara granosa L) yang dibudidayakan di perairan desa Sukal, Kabupaten Bangka Barat, sedangkan kerang kepah (Geloina sp) berasal dari perairan desa Jada Bahrin, Kabupaten Bangka dan kerang lokan (Meretrix meretrix) dari pantai Pasir Padi, Pangkalpinang, yang diperoleh dari hasil tangkapan nelayan. Hasil penelitian, menunjukkan terdapat partikel mikroplastik pada sampel 3 jenis kerang, air dan sedimen yang termasuk jenis fiber, fragmen, granule, film dan foam. Mikroplastik yang ditemukan pada kerang Geloina sp berkisar antara 17-65 partikel/15 individu, sedangkan Meretrik meretrix 13-18 partikel/15 Individu, dan Anadara granosa L 26-42 partikel/15 individu, dengan jenis fiber yang mendominasi pada 3 jenis kerang tersebut. Partikel mikroplastik juga ditemukan di perairan dan sedimen, dengan kisaran 18-91 partikel dalam 1,5liter sampel air, serta 14-37 partikel dalam 100gram sampel sedimen, dengan jenis partikel yang mendominasi adalah fiber. Hasil penelitian dapat menambah literasi keamanan pangan dari kerang-kerangan dari perairan Pulau Bangka. Penelitian lebih lanjut mengenai identifikasi karakteristik (kualitas dan kuantitas) mikroplastik secara kimiawi dapat memberikan informasi lebih lanjut mengenai potensi bahaya polimer serta bahan aditif dalam mikroplastik bagi konsumen.
A 𝐶1-𝑃7 Bell Finite Element on Triangle
Authors: Xu Xuejun , Zhang Shangyou 
Published: November 2023

Abstract
We construct a

C
1

C^{1}

-

P
7

P_{7}

Bell finite element by restricting its normal derivative from a

P
6

P_{6}

polynomial to a

P
5

P_{5}

polynomial, and its second normal derivative from a

P
5

P_{5}

polynomial to a

P
4

P_{4}

polynomial, on the three edges of every triangle.
On one triangle, the finite element space contains the

P
6

P_{6}

polynomial space.
We show the method converges at order 7 in

L
2

L^{2}

-norm.
By eliminating all degrees of freedom on edges of

C
1

C^{1}

-

P
7

P_{7}

Argyris finite element, the global degrees of freedom of the new element are reduced substantially from

27
⁢
V

27V

to

12
⁢
V

12V

asymptotically, where 𝑉 is the number of vertices in the triangular mesh.
While the global degrees of freedom of the

C
1

C^{1}

-

P
6

P_{6}

Argyris finite element is

19
⁢
V

19V

, the new element is equally accurate but more economic.
Numerical tests are presented, showing the new element is more accurate than the existing element while having less global unknowns.
Avaliação Institucional no Ensino Fundamental: o Orientador Pedagógico como Articulador do Coletivo Escolar
Authors: Lemes De Sordi Mara Regina , Montejano da Silva Margarida 
Published: November 2023

Descreve o processo de implantação de avaliação institucional participativa (AIP) em rede municipal de ensino concebido em parceria com professores da Unicamp/SP. A validez da proposição do orientador pedagógico como o ator estratégico para a sustentação do processo de AIP junto aos atores internos e externos da escola, reunidos em comissões próprias de avaliação e a sensibilização para o papel que a AIP cumpre no fortalecimento da escola como instância produtora de qualidade são eixos examinados no trabalho, que problematiza, ainda, os obstáculos e limites de uma proposta de cunho regulatório orientada pelos princípios do pacto de qualidade negociada.Palabras clave: Avaliação institucional, pacto de qualidade negociada, participação, regulação, contra-regulação. Describes the establishing process of a participative institutional evaluation (PIE) in municipal schools, conceived in partnership with teachers from Unicamp/SP. The proposition validity of a pedagogical guide as a strategic actor for the maintenance of PIE process with the internal and external school individuals assembled in commissions for evaluation purposes, and the importance of PIE in strengthen of school as a place for production of quality, are deeply concerned in this work. It is presented in this text the discussion on the limits and obstacles of a regulatory proposal mediated by the principles of the negotiated quality agreement.Keywords: Institutional evaluation, negotiated quality agreement, participation, regulation, counter-regulation.
Evaluar un Programa Educativo: Una Experiencia Formativa Compleja
Authors: Perassi Zulma 
Published: November 2023

En América Latina, la evaluación de programas en el campo de la educación es una deuda que no siempre asumen quienes lideran los procesos de planificación. Esta vacancia impide gestar un conocimiento acabado de lo que sucede con cada intervención. La presente producción se refiere al andamiaje básico y preliminar que orienta la evaluación de un programa desarrollado por un equipo de educadores que ha sido parte del mismo. En esta oportunidad, se comparten las líneas claves que encuadran y dan sentido al proceso de evaluación encarado. La experiencia transcurre en Argentina, más específicamente, en la Provincia de San Luis.Palabras clave: Evaluación de programa, planificación, juicio de valor, actores involucrados, complejidad. In Latin America, the evaluation of programs in the education field is a duty that is not always assumed by those who leads the planning process. This vacancy prevents a deep knowledge of what happens with each intervention. This production refers to the basic and preliminary scaffolding that guides the evaluation of a program developed by an educators team that has been part of it. In this opportunity, we share the key lines that fit and give meaning to the undertaken assessment process. This experience takes place in Argentina, specifically, in San Luis Province.Keywords: Evaluation of program, planning, value judgment, involved actors, complexity.
Estudio Comprensivo sobre la Evaluación del Docente
Authors: Coloma Manrique Carmen Rosa 
Published: November 2023

El presente estudio considera la vigencia, en la agenda educativa, de la evaluación de docentes tanto por el papel fundamental relacionado a la mejora de las instituciones, como por ser objeto de las políticas institucionales y nacionales de evaluación. Hace un análisis sobre la evaluación de docentes de educación básica regular, en un distrito de Lima Metropolitana, Perú. Parte de una revisión teórica de los conceptos, tipos y metodología de la evaluación del docente para luego indagar acerca de los conocimientos, percepciones y sentimientos que tienen un grupo de expertos y agentes ejecutores: docentes y directores de colegios de diversos tipos de gestión educativa, sobre la evaluación de docentes. Se ha hecho uso de técnicas cualitativas: entrevistas y grupos focales que han permitido recoger información relevante a torno a 15 variables que han permitido identificar aspectos de tipo estratégico (político), ético y técnico de la evaluación de docentes.Palabras clave: Evaluación de docentes, evaluación formativa, evaluación de control, calidad de la educación. The present study considers the relevance, in the educative agenda, of the evaluation of teaching as much for its fundamental role related to the improvement of the institutions, as for being object of the institutional and national policies of evaluation. It makes an analysis on the teaching evaluation of the regular basic education, in a Metropolitan district of Lima, Peru. It departs from a theoretical revision of the concepts, types and methodology of the teaching evaluation to soon investigate on the knowledge, perceptions and feelings that have a group of experts and agents executors: teachers and directors of schools of diverse types of teaching management, on the evaluation of teaching. Different qualitative techniques have been used: focal groups and interviews have allowed the recollection of relevant information on up to 15 variables that have allowed the identification of different strategic (political), ethic and technical aspects of the teaching evaluation.keywords: Teachers’ evaluation, formative evaluation, control evaluation, quality of education.
Encuesta de Satisfacción Estudiantil versus Cultura Evaluativa de la Docencia
Authors: Salazar Ascencio José 
Published: November 2023

La presente investigación se realizó en el Departamento de Educación de la Universidad de La Frontera durante el segundo semestre del año 2006 y el primero de 2007, tomando como unidad de análisis la facultad de Educación y Humanidades. En esta línea, haciendo uso de un cuestionario, se recoge información en una muestra estratificada, sobre concepciones y prácticas evaluativas, como también, la opinión que le merece a los académicos las acciones de evaluación docente a las que se ve sometido(a), de manera especial la encuesta que emiten sus estudiantes sobre su desempeño.Palabras clave: Estudiantes, cuestionarios, evaluación, docencia universitaria, Chile. The present investigation was realized in the Department of Education of the University of La Frontera during the second semester of year 2006 and first of 2007, taking as analysis unit the faculty of Education and Humanities. In this line, doing use of a questionnaire, information is collected in a stratified sample, about conceptions and evaluative practices, as well as, the opinion that was awarded to the academic, the actions of teaching evaluation to which it is put under, of special manner the survey emitted by the students on their performance.Keywords: Students, questionnaires, evaluation, teaching for University, Chile.
Validación de un Modelo de Competencias Docentes en una Universidad Pública y otra Privada en México
Authors: García Cabrero Benilde , Loredo Enríquez Javier 
Published: November 2023

El presente trabajo tiene como finalidad presentar los avances del proceso de validación del modelo de Evaluación de Competencias Docentes (ecd) (García-Cabrero, Loredo, Luna y Rueda, 2008) que se ha desarrollado durante el presente año en la facultad de Psicología de la unam y en la Universidad Iberoamericana Campus Ciudad de México.Palabras clave: Competencias docentes, nivel superior, universidad pública, universidad privada. The present work aims to present the progress reached in the validation process of the model of Evaluation of Teaching Competences (EDC) (García-Cabrero, Loredo, Luna y Rueda, 2008) that has been developed during the current year at the faculty of Psychology at the UNAM and at the Iberoamerican University campus México city.keywords: Teaching competences, higher level, public university, private university.