bluuebunny/crossref_metadata_2025_split huggingface dataset:
Tick Size, Trading Strategies, and Market Quality
Authors: Werner Ingrid M. , Rindi Barbara , Buti Sabrina , Wen Yuanji 
Published: July 2022

We investigate the effects of a tick-size reduction on market quality in a multiperiod limit order book market. For illiquid stocks, reducing the tick size facilitates undercutting and discourages liquidity provision, resulting in deteriorating market quality but higher volume. For liquid stocks, reducing the tick size curtails queues, resulting in lower depth and volume but narrower spread. With a competing crossing network, a tick-size reduction results in worse market quality for all stocks due to migration of order flows. We empirically test our model predictions and find support for recent tick-size reductions in Japan and the United States. This paper was accepted by Victoria Ivashina, finance. Supplemental Material: The data files and online appendices are available at https://doi.org/10.1287/mnsc.2022.4502 .
Linear Programming and Community Detection
Authors: Del Pia Alberto , Khajavirad Aida , Kunisky Dmitriy 
Published: July 2022

The problem of community detection with two equal-sized communities is closely related to the minimum graph bisection problem over certain random graph models. In the stochastic block model distribution over networks with community structure, a well-known semidefinite programming (SDP) relaxation of the minimum bisection problem recovers the underlying communities whenever possible. Motivated by their superior scalability, we study the theoretical performance of linear programming (LP) relaxations of the minimum bisection problem for the same random models. We show that, unlike the SDP relaxation that undergoes a phase transition in the logarithmic average degree regime, the LP relaxation fails in recovering the planted bisection with high probability in this regime. We show that the LP relaxation instead exhibits a transition from recovery to nonrecovery in the linear average degree regime. Finally, we present nonrecovery conditions for graphs with average degree strictly between linear and logarithmic. Funding: A. Del Pia is partially funded by Office of Naval Research (ONR) [Grant N00014-19-1-2322]. D. Kunisky is supported by the ONR [Grant N00014-20-1-2335], a Simons Investigator Award to Daniel Spielman, and the National Science Foundation [Grants DMS-1712730 and DMS-1719545].
O TRABALHO DE CAMPO COMO INTERVENÇÃO PRÁTICA NO ESTÁGIO CURRICULAR SUPERVISIONADO EM GEOGRAFIA
Authors: Brito Costa Thenilly Sérgia , Da Silva Cardozo Aline , Fernandes Flor de Souza Sara , Fernandes Moreira Marianna , Rodrigues Galvão Iapony 
Published: July 2022

A pesquisa e o debate a respeito da Formação do Professor de Geografia e do Estágio Supervisionado têm crescido consideravelmente, sobretudo a partir da década de 1990. O estágio supervisionado na contemporaneidade representa um momento ímpar na formação do docente de Geografia, sendo entendido como um momento de preparação profissional, possibilitando a vivência, a reflexão e a intervenção do licenciando no ambiente escolar. O planejamento e a execução de intervenções educacionais são experiências que incorporam o conjunto de conhecimentos proporcionados pelos estágios, pois os discentes da licenciatura, a partir de uma perspectiva docente, idealizam as intervenções que os mesmos compreendem como significativas para o contexto escolar e educacional. O presente artigo busca contribuir com esta discussão, apresentando casos exemplares de intervenção de estagiários no ambiente escolar, destacando como o trabalho de campo pode ser uma alternativa profícua de intervenção, tanto para contribuir com uma aprendizagem significativa dos conteúdos da Geografia escolar, como para o processo de formação inicial e continuada dos licenciandos e dos professores supervisores. Palavras-chave: Estágio Curricular Supervisionado; Intervenções práticas; Metodologia de ensino; Trabalho de Campo.
Peningkatan Efisiensi Biaya Produksi Bata Merah melalui Penerapan Teknologi Inovatif dan Online Marketing di Kabupaten Banyuasin
Authors: SUSANTI EKA , Setyo Cahyono Endro , SUKARJO HB 
Published: July 2022

Pangkalan Banteng merupakan sentra penghasil batu bata merah di Kabupaten Banyuasin. Di daerah ini, terdapat beberapa pengrajin bata merah yang tergabung dalam Paguyuban Usaha Batubata “Semidang Aji”. Mereka umumnya masih menggunakan cara tradisional untuk memproduksi bata merah yang menyebabkan kapasitas produksinya sangat terbatas, sehingga tidak mampu memenuhi kebutuhan bata merah di sekitarnya. Salah satu solusi untuk meningkatkan kapasitas produksi adalah melalui penggunaan teknologi inovatif produksi bata merah, diantaranya adalah mesin pencetak bata otomatis dan mesin pengaduk material, yang dikombinasikan dengan Pembangkit Listrik Tenaga Surya (PLTS) sebagai sumber energinya. Melalui program ini, diharapkan bisa dihasilkan efisiensi biaya produksi melalui penggunaan teknologi inovatif tersebut dan penerapan online marketing untuk memperluas pasar mitra.
Metode yang akan dijalankan dalam program ini adalah pengembangan teknologi produksi batu bata merah yang inovatif dan online marketing. Tahapan kegiatan dimulai dari mengindentifikasi kebutuhan riil mitra, merancang dan membuat peralatan, melakukan pengujian terhadap mesin yang telah dibuat, melakukan serah terima peralatan, serta memberikan pelatihan dan pendampingan kepada pelaku mitra penerima kelompok usaha tersebut. Dari kegiatan pendampingan selama produksi, bisa dihitung efisiensi produksi bata merah dengan membandingkan profit dan biaya produksi sebelum dan sesudah menggunakan teknologi inovatif dan online marketing tersebut.
Luaran dari kegiatan ini adalah adanya paket teknologi mesin produksi batu bata merah yang inovatif dan bisa dioperasikan dengan baik, yaitu mesin pencetak batu bata otomatis dan mesin pengaduk material otomatis. Termasuk juga pembangkit listrik tenaga surya untuk menerangi lokasi produksi bata mitra. Selain itu telah dihasilkan sebuah sistem online marketing yang diharapkan bisa meningkatkan jangkauan pasar dari produk UMKM tersebut. Diharapkan melalui program ini, permasalahan warga dan UMKM dalam hal terbatasnya kapasitas produksi bata merah di Kabupaten Banyuasin dapat teratasi dan bisa meningkatkan kesejahteraan anggota kelompok pada khususnya dan masyarakat sekitar pada umumnya.
Teknologi Pembuatan Pakan Konsentrat Sapi Potong Sesuai Standar Nasional Indonesia (SNI) Berbasis Limbah Pertanian
Authors: Zullaikah Siti , Pramujati Bambang , Prasetyo Endry Nugroho , Jannah Afifatul , Wicaksono Sigit Tri , Nikmah Hikmatun , Haryanto Haryanto , Wardhana Adian Galihditya Sinarto , Prakoso Adidoyo , Mujiburrosyid Ahmad , Maulana Amri , Gianfranco Enrique , Ihsan Hamdan , Widagda Indra Cahya , Febrada Mayongga Heriz , Wilhan Ariawan Mohamad Emaldi , Darojat Muhamad Irfaid , Majid Alifan Muhammad , Rizky Sanjaya Muhammad , Solehuddin Mukhlis , Raja Risfanali 
Published: July 2022

Limbah jagung dan padi merupakan limbah pertanian yang banyak ditemukan di Desa Bluri, Kec. Solokuro, Kab. Lamongan, Prov. Jawa Timur. Desa Bluri adalah salah satu desa binaan Direktorat Riset, Teknologi, dan Pengabdian Kepada Masyarakat (DRTPM), Institut Teknologi Sepuluh Nopember (ITS) yang juga memiliki potensi dibidang peternakan khususnya penggemukan sapi yang sampai saat ini masih dikelola secara tradisional. Ketersediaan dan harga pakan menjadi permasalahan utama pada proses penggemukan sapi. Mengingat pakan hijauan akan sulit diperoleh pada musim kemarau, dan pakan yang hanya mengandalkan pada limbah pertanian yang ada mempunyai kualitas (kandungan nutrisi) yang belum memenuhi mutu pakan untuk penggemukan sapi. Oleh karena itu, untuk memenuhi pakan ternak sapi yang secara kualitas dan kuantitas memenuhi kebutuhan yang diperlukan, pada kegiatan abmas berbasis produk sebelumnya telah dilakukan pembuatan pakan ternak setara konsentrat sapi potong dari limbah pertanian setempat secara fermentasi aerob sehingga proses yang ditawarkan lebih murah, mudah, ramah lingkungan dan berkelanjutan. Pakan ternak yang diperoleh dapat dianggap sebagai konsentrat sapi potong penggemukan karena secara nutrisi sesuai dengan SNI 3148-2:2017 yaitu kadar air 12,83% (maks. 14%), kadar protein kasar 16,12% (min. 13%), dan kadar lemak kasar 0,96% (maks. 7%). Namun kadar abu dan TDN yaitu 14,62% dan 57,51%, masih diatas kadar abu dan TDN yang disyaratkan yaitu maks. 12% dan min 68%. Sehingga abmas berbasis produk yang dilakukan bertujuan memperbaiki kulitas pakan melalui penurunan kadar abu dan menaikkan kadar TDN dengan cara (1) modifikasi bahan pakan, (2) modifikasi biakan mikroba dengan menambahkan bakteri/jamur yang mampu mengurai bahan-bahan lignoselulosa, dan (3) memperlama waktu fermentasi. Dengan modifikasi bahan, biakan mikroba dan memperlama waktu fermentasi maka kadar protein kasar meningkat tajam menjadi 23,92% (C2/M2/7 hari fermentasi), kadar abu sedikit naik menjadi 9,52% (C3/M3/7 hari fermentasi), demikian juga TDN menjadi 66,07% (C3/M2/7 hari fermentasi). Uji coba pakan di lapangan menunjukkan kenaikan berat rata-rata sapi perhari yang masih memberikan keuntungan kepada para peternak. Sehingga penggunaan pakan ternak dari limbah pertanian dengan fermentasi aerob menggunakan biakan mikroba dari ITS dapat menjadi solusi para peternak di Desa Bluri yang hingga saat ini belum ada yang berhasil karena mahalnya biaya pakan.
High prevalence of Schistosoma mansoni infection and stunting among school age children in communities along the Albert-Nile, Northern Uganda: A cross sectional study
Authors: Mulindwa Julius , Namulondo Joyce , Kitibwa Anna , Nassuuna Jacent , Nyangiri Oscar Asanya , Kimuda Magambo Phillip , Boobo Alex , Nerima Barbara , Busingye Fred , Candia Rowel , Namukuta Annet , Ssenyonga Ronald , Ukumu Noah , Ajal Paul , Adriko Moses , Noyes Harry , de Dood Claudia J. , Corstjens Paul L. A. M. , van Dam Govert J. , Elliott Alison M. , Matovu Enock ,   TrypanoGEN+ Research group
Published: July 2022

Background
Knowing the prevalence of schistosomiasis is key to informing programmes to control and eliminate the disease as a public health problem. It is also important to understand the impact of infection on child growth and development in order to allocate appropriate resources and effort to the control of the disease.

Methods
We conducted a survey to estimate the prevalence of schistosomiasis among school aged children in villages along the Albert-Nile shore line in the district of Pakwach, North Western Uganda. A total of 914 children aged between 10–15 years were screened for Schistosoma mansoni using the POC-CCA and Kato Katz (KK) techniques. The infection intensities were assessed by POC-CCA and KK as well as CAA tests. The KK intensities were also correlated with POC-CCA and with CAA intensity. Anthropometric measurements were also taken and multivariate analysis was carried out to investigate their association with infection status.

Results
The prevalence of schistosomiasis using the POC-CCA diagnostic test was estimated at 85% (95% CI: 83–87), being highest amongst children living closer to the Albert-Nile shoreline. Visual scoring of the POC-CCA results was more sensitive than the Kato Katz test and was positively correlated with the quantified infection intensities by the CAA test. The majority of the children were underweight (BMI<18.5), and most notably, boys had significantly lower height for age (stunting) than girls in the same age range (p < 0.0001), but this was not directly associated with S. mansoni infection.

Conclusion
High prevalence of S. mansoni infection in the region calls for more frequent mass drug administration with praziquantel. We observed high levels of stunting which was not associated with schistosomiasis. There is a need for improved nutrition among the children in the area.
Using a national level cross-sectional study to develop a Hospital Preparedness Index (HOSPI) for Covid-19 management: A case study from India
Authors: Duggal Bhanu , Duggal Mona , Panch Aparna , Chourase Mithlesh , Gedam Praveen , Singh Pushpendra , Saunik Sujata , Subramanian Lakshminarayan 
Published: July 2022

Background
We developed a composite index–hospital preparedness index (HOSPI)–to gauge preparedness of hospitals in India to deal with COVID-19 pandemic.

Methods
We developed and validated a comprehensive survey questionnaire containing 63 questions, out of which 16 critical items were identified and classified under 5 domains: staff preparedness, effects of COVID-19, protective gears, infrastructure, and future planning. Hospitals empaneled under Ayushman Bharat Yojana (ABY) were invited to the survey. The responses were analyzed using weighted negative log likelihood scores for the options. The preparedness of hospitals was ranked after averaging the scores state-wise and district-wise in select states. HOSPI scores for states were classified using K-means clustering.

Findings
Out of 20,202 hospitals empaneled in ABY included in the study, a total of 954 hospitals responded to the questionnaire by July 2020. Domains 1, 2, and 4 contributed the most to the index. The overall preparedness was identified as the best in Goa, and 12 states/ UTs had scores above the national average score. Among the states which experienced high COVID-19 cases during the first pandemic wave, we identified a cluster of states with high HOSPI scores indicating better preparedness (Maharashtra, Tamil Nadu, Karnataka, Uttar Pradesh and Andhra Pradesh), and a cluster with low HOSPI scores indicating poor preparedness (Chhattisgarh, Delhi, Uttarakhand).

Interpretation
Using this index, it is possible to identify areas for targeted improvement of hospital and staff preparedness to deal with the COVID-19 crisis.
Fear and death anxiety in the shadow of COVID-19 among the Lebanese population: A cross-sectional study
Authors: Chalhoub Zeinab , Koubeissy Hiba , Fares Youssef , Abou-Abbas Linda 
Published: July 2022

Background
The COVID-19 pandemic was one of the most devastating health crises the world has seen. One of its mental health consequences includes fear of being infected, which could lead to anxiety. This study aimed to assess the fear related to the COVID-19 pandemic and its associated factors among the adult population in Lebanon.

Methods
A cross-sectional study was conducted in Lebanon between February 26th and April 29th, 2021. Data was collected through an online survey among adults aged 18 years and older. Information on sociodemographic and clinical characteristics of the participants, fear and death anxiety related to the COVID-19 pandemic, depression, and anxiety were collected. Multivariable linear regression analyses were carried out to identify the predictors of fear related to the COVID-19 pandemic.

Results
A total of 1840 participants were included in the analysis of which 62.9% were females and 62.2% were single. The age of the participants ranged from 18 to 70 years with a mean of 26.6 ±8.8 years. Of the total participants, 41.9% felt uncomfortable thinking about the novel Coronavirus and 35.4% of candidates became nervous/anxious when watching the news about COVID-19 on social media. About one-third of the participants (33.7%) were afraid of COVID-19 and 23.8% were afraid of losing their life because of the disease. Concerning somatic symptoms of fear, 7.9% reported increased heart races or palpitations whenever they thought about getting infected with COVID-19, 3.7% complained about sleep disturbances while 2.5% developed tremors or sweating in their hands when they thought about Coronavirus. In addition, Death anxiety related to the COVID-19 pandemic was one of the most fear-related factors (B = 0.191, 95% CI (0.172 to 0.211), P-value < 0.0001).

Conclusion
This study provides insights on the impact of COVID-19 on individuals at the level of fear in Lebanon. Death anxiety was identified as the most significant predictor of fear related to the COVID-19 pandemic. Considering the negative psychological effects of fear, it is necessary to educate the adults on how to deal with death anxiety and implement psychological interventions and counseling programs to relieve fear and improve the mental health of Lebanese adults.
Preoperative risk assessment and spirometry is a cost-effective strategy to reduce post-operative complications and mortality in Mexico
Authors: Mares-Gutiérrez Yolanda , Salinas-Escudero Guillermo , Aracena-Genao Belkis , Martínez-González Adrián , García-Minjares Manuel , Flores Yvonne N. 
Published: July 2022

Aim
Combining preoperative spirometry with the Assess Respiratory Risk in Surgical Patients in Catalunia (ARISCAT) risk scale can reduce post-operative complications and improve patient survival. This study aimed to assess the cost-effectiveness of performing spirometry or not in conjunction with the ARISCAT scale, to reduce post-operative complications and improve survival among adult patients undergoing elective surgery in Mexico.

Methods
A cost-effectiveness analysis (CEA) was performed to compare the specific cost and health outcomes associated with the combined use of the ARISCAT scale and preoperative spirometry (Group 1), and the use of the ARISCAT scale without preoperative spirometry (Group 2). The health outcomes evaluated were post-operative complications and survival. The perspective was from the health care provider (Hospital General de México) and direct medical costs were reported in 2019 US dollars. A decision tree with a time horizon of eight months was used for each health outcome and ARISCAT risk level.

Results
The combined use of the ARISCAT scale and spirometry is more cost-effective for reducing post-operative complications in the low and moderate-risk levels and is cost-saving in the high-risk level, than use of the ARISCAT scale without spirometry. To improve patient survival, ARISCAT and spirometry are also more cost-effective at the moderate risk level, and cost-saving for high-risk patients, than using the ARISCAT scale alone.

Conclusions
The use of preoperative spirometry among patients with a high ARISCAT risk level was cost-saving, reduced post-operative complications, and improved survival. Our findings indicate an urgent need to implement spirometry as part of preoperative care in Mexico, which is already the standard of care in other countries.
Physiological reactions to acute stressors and subjective stress during daily life: A systematic review on ecological momentary assessment (EMA) studies
Authors: Weber Jeannette , Angerer Peter , Apolinário-Hagen Jennifer 
Published: July 2022

ObjectiveThis review aims to provide an overview of ecological momentary assessment (EMA) studies analyzing stress reactivity during daily life in terms of direct and moderated influence of acute stress on physiological responses.Materials and methodsA systematic literature search was performed on November 29, 2021 using Web of Science, MEDLINE and PsycINFO to identify prospective EMA studies targeting acute stressors or stress under naturalistic conditions, without restrictions of publication date or population. Study quality was assessed for multiple EMA-specific sources of bias.ResultsOut of 4285 non-duplicate records, 107 publications involving 104 unique studies were included. The majority of studies assessed acute physiological stress responses primarily through salivary cortisol (n = 59) and cardiovascular outcomes (n = 32). Most studies performed at least three measurements per day (n = 59), and had a moderate risk of recall bias (n = 68) and confounding (n = 85). Fifty-four studies reported a compliance of ≥80%. Direct, non-moderated positive associations were observed between acute stress exposure and concurrent cortisol levels (44%, n = 11/25), systolic (44%, 8/18) and diastolic blood pressure (53%, 8/15) and heart rate (53%, 9/17). Several inter- and intra-individual moderators were identified, such as age, gender, health status, chronic stress, work-related resources, physical activity and stress coping indicators.ConclusionsAbout half of the reviewed EMA studies demonstrated direct associations between everyday acute stress exposure and physiological responses, including increased cortisol levels, blood pressure and heart rate. Results further suggested various moderator variables that could help develop tailored prevention strategies and identify groups at higher risk for dysfunctional stress responses.RegistrationPROSPERO—Reg.-No.: PROSPERO 2020CRD42020163178.
Factors associated with post-neonatal mortality in Ethiopia: Using the 2019 Ethiopia mini demographic and health survey
Authors: Fentaw Kenaw Derebe , Fenta Setegn Muche , Biresaw Hailegebrael Birhan , Yalew Mequanint Melkam 
Published: July 2022

BackgroundPost-neonatal mortality is the number of deaths of infants aged 28 days through 11 months and is expressed as post-neonatal deaths per 1000 live births per year. This study aimed to identify the factors that influence post-neonatal death using the 2019 Ethiopia mini demographic and health survey (EMDHS2019).MethodsThe study included 2126 post neonates born from mothers who had been interviewed about births in the five years before the survey. The survey gathering period was carried out from March 21, 2019, to June 28, 2019. The data were first analyzed with a chi-square test of association, and then relevant factors were evaluated with binary logistic regression models and the results were interpreted using adjusted odds ratio (AOR) and confidence interval(CI) of parameters.ResultsThe prevalence of post neonatal death was 16% (95% CI: 15.46, 17.78). The study also showed that not vaccinated post-neonates (AOR = 2.325, 95% CI: 1.784, 3.029), mothers who were not receiving any tetanus injection (AOR = 2.891, 95% CI: 2.254, 3.708), mothers age group 15-24(AOR = 1.836, 95% CI: 1.168, 2.886), Afar (AOR = 2.868, 95% CI: 1.264, 6.506), Somali(AOR = 2.273, 95% CI: 1.029, 5.020), Southern Nations, Nationalities, and People’s Region(SNNP) (AOR = 2.619, 95% CI: 1.096, 6.257), 2–4 birth orders (AOR = 1.936, 95% CI: 1.225, 3.060), not attend antenatal care(ANC) visit (AOR = 6.491, 95% CI: 3.928, 10.726), and preceding birth interval less than 24 months (AOR = 1.755, 95% CI: 1.363,2.261) statistically associated with a higher risk of post neonatal death. Although not given anything other than breast milk (AOR = 0.604, 95% CI 0.462, 0.789), urban residents (AOR = 0.545, 95% CI: 0.338, 0.877), single births (AOR = 0.150, 95% CI: 0.096, 0.234), less than 3 children in a family (AOR = 0.665, 95% CI 0.470, 0.939) and the head of the male household (AOR = 0.442, 95% CI: 0.270, 0.724) were statistically associated with a lower risk of post-neonatal mortality.ConclusionsIt is highly suggested that maternal and child health care services (including antenatal care visits, postnatal care visits, and immunization) be strengthened and monitored during the early stages of infancy. Mothers from Somali, Afar, and SNNP regions, as well as multiple births, rural residents, and those giving birth to a child with a birth gap of fewer than 24 months, demand special care.