bluuebunny/crossref_metadata_2025_split huggingface dataset:
The phase transition in random regular exact (3s + s, k)-SAT problem
Authors: Tang Ao , Wang Xiaofeng , Peng Qingyuan , Wang Junxia , Yang Yi , He Fei , Hua Yingying 
Published: April 2024

A CNF formula with each clause of length k and each variable occurring 4s times, where positive occurrences are 3s and negative occurrences are s, is a regular (3s + s, k)-CNF formula (F3s+s,k formula). The random regular exact (3s + s, k)-SAT problem is whether there exists a set of Boolean variable assignments such that exactly one literal is true for each clause in the F3s+s,k formula. By introducing a random instance generation model, the satisfiability phase transition of the solution is analyzed by using the first moment method, the second moment method, and the small subgraph conditioning method, which gives the phase transition point s* of the random regular exact (3s + s, k)-SAT problem for k≥3. When s < s*, F3s+s,k formula is satisfiable with high probability; when s > s*, F3s+s,k formula is unsatisfiable with high probability. Finally, through the experimental verification, the results show that the theoretical proofs are consistent with the experimental results.
Heart rate and oxygen saturation patterns in very low birth weight infants with early onset sepsis and histologic chorioamnionitis
Authors: Bultmann Charlene R. , Qiu Jiaxang , Belmonte Briana , Fairchild Karen D. , Sullivan Brynne A. 
Published: April 2024

BACKGROUND: Chorioamnionitis and early onset sepsis (EOS) in very low birth weight (VLBW,< 1500 g) infants may cause a systemic inflammatory response reflected in patterns of heart rate (HR) and oxygenation measured by pulse oximetry (SpO2). Identification of these patterns might inform decisions about duration of antibiotic therapy after birth. OBJECTIVE: Compare early HR and SpO2 patterns in VLBW infants with or without early onset sepsis (EOS) or histologic chorioamnionitis (HC). STUDY DESIGN: Retrospective study of placental pathology and HR and SpO2 in the first 72 h from birth in relation to EOS status for inborn VLBW NICU patients 2012–2019. RESULT: Among 362 VLBW infants with HR and SpO2 data available, clinical, or culture-positive EOS occurred in 91/362 (25%) and HC in 81/355 (22%). In univariate analysis, EOS was associated with higher mean HR, lower mean SpO2, and less negative skewness of HR in the first 3 days after birth. HC was associated with higher standard deviation and skewness of HR but no difference in SpO2. In multivariable modeling, significant risk factors for EOS were mean HR, gestational age, HC, mean SpO2, and skewness of SpO2. CONCLUSION: HR and SpO2 patterns differ shortly after birth in VLBW infants exposed to HC or with EOS, likely reflecting a systemic inflammatory response.
Experiences with mixed-mode surveys in times of COVID-19 at Statistics Netherlands
Authors: van Berkel Kees , van den Brakel Jan , Groffen Daniëlle , Burger Joep 
Published: April 2024

Statistics Netherlands’ social surveys are based on a sequential mixed-mode data collection approach using web, telephone, and face-to-face interviewing. This article illustrates how Statistics Netherlands addressed the sudden, unforeseen loss of face-to-face interviews in social surveys amidst the COVID-19 pandemic. At the beginning of the pandemic, survey processes were immediately adjusted in several ways to mitigate the negative effects of respondent attrition. Where possible, sampled people initially assigned to face-to-face interviewing were motivated to respond through web or telephone to minimize the loss of response. At the same time regression analysis and simulation were conducted to obtain quantitative insight into the effects of losing face-to-face responses in the sequential mixed-mode designs. Furthermore, alternative model-based estimation procedures based on structural time series models were implemented to compensate for the bias that is a result of the loss of face-to-face responses. These initiatives are illustrated with applications to the Dutch Labor Force Survey, the Housing Survey, and the Health Survey.
BAURAN PEMASARAN AYAM BROILER DI PT BERKAH UTAMA SATWA KOTA BEKASI
Authors: Irma Puja Saputri  , Idah Yuniasih  
Published: April 2024

ABSTRAK
Bauran pemasaran adalah kumpulan strategi pemasaran yang digunakan perusahaan untuk mencapai tujuan pemasaran tertentu. Penerapan bauran pemasaran dan saluran pemasaran yang terarah atau baik akan memudahkan perusahaan mencapai tujuan pemasarannya agar dapat bersaing dan menjangkau pasar yang lebih luas. Tujuan penelitian ini adalah untuk mengetahui bagaimana analisis bauran pemasaran ayam broiler pada PT Berkah Utama Satwa Kota Bekasi. Metode penelitian ini menggunakan penelitian deskriptif kualitatif dengan teknik pengumpulan data yang digunakan adalah teknik observasi, wawancara, dan dokumentasi. Hasil penelitian analisis bauran pemasaran ayam broiler PT Berkah Utama Satwa Kota Bekasi dapat dilihat dari bauran pemasaran ayam broiler dengan menggunakan 7P yaitu product, place, price, promotion, process, people, dan physical evidence. Kendala yang terjadi adalah pada saat mendistribusikan atau mengirimkan ayam, jarak antara perusahaan dan kandang cukup terlalu jauh yaitu dari Ciamis ke Bekasi sehingga pada saat pengiriman di perjalanan ada saja ayam yang sudah mati. Solusinya adalah perusahaan melakukan pengurangan dalam mengisi box pengiriman, yang awalnya berisi sekitar 20 ekor ayam menjadi 15 ekor ayam, supaya ayam yang didalam box selama perjalanan jauh tetap bisa bergerak sedikit bebas dan tidak mengalami kepanasan dan terakhir menyemprotkan air ke box ayam supaya mengurangi kepanasan saat diperjalanan.
Kata Kunci : Bauran Pemasaran, 7P
MARKETING MIX FOR BROILER CHICKENS
AT PT BERKAH UTAMA SATWA BEKASI CITY

ABSTRACT
Marketing mix is a collection of marketing strategy used by companies to achieve certain marketing objectives. The application of a targeted or good marketing mix and marketing channel will make it easier for companies to achieve their marketing objectives in order to compete and reach a wider market. The purpose of this study was to find out how the analysis of the broiler marketing mix at PT Berkah Utama Satwa in Bekasi City. This research method uses descriptive qualitative research with data collection techniques used are observation, interview, and documentation techniques. The results of the analysis of marketing mix analysis for broiler PT Berkah Utama Satwa in Bekasi City can be seen from the broiler marketing mix using 7Ps, namely product, place, price, promotion, process, people, and physical evidence. The obstacle that occurs is when distributing or sending chickens, the distance between the company and the coops is quite too far, namely from Ciamis to Bekasi so that when shipping is on the way there are dead chickens. The solution is for the company to reduce the filling in shipping boxes, which initially contained around 20 chickens to 15 chickens, so that the chickens in the box during long trips can still move a little freely and not experience overheating and finally spray water into the chicken box to reduce overheating while traveling.
Keyword : Marketing Mix, 7P
Customer Churn Prediction Using Machine Learning Algorithms
Authors: Shantanu Sonune  , Abhijeet Mohite  , Anjali Borhude  , Yash Patil  , Prof. Anuradha Thorat  
Published: April 2024

In today’s highly competitive industries, retaining customers is vital for sustaining business growth and profitability. Customer churn, the phenomenon where customers switch from one service provider to another, poses a significant challenge for different companies. Predicting churn can help these companies take proactive measures to retain valuable customers. This study explores the application of machine learning algorithms for predicting customer churn in different industries like Telecom Industry, IT and Banking Sector. Additionally, the research contributes to the existing body of knowledge in the field of customer churn prediction, showcasing the potential of machine learning algorithms in addressing complex business challenges. The project begins with data collection and preprocessing, involving the extraction and cleaning of relevant features from diverse sources such as customer interactions, transaction history, and demographic information.The predictive modeling phase employs state-of-the-art machine learning algorithms, including but not limited to logistic regression, decision trees and random forest, feature engineering is employed to enhance the model's ability to capture nuanced customer behavior. The dataset is split into training and testing sets to evaluate model performance accurately.The outcomes of this project have practical implications for businesses aiming to proactively manage customer retention strategies. By identifying potential churners early, companies can implement targeted interventions, personalized marketing strategies, and loyalty programs to mitigate the risk of customer loss and foster long-term relationships.
Improved Method for Determining the Feed Influence on the Tangential Cutting Force During Re-drilling, Countersinking and Boring Based on the Small Sample Theory
Authors: Krupa Volodymyr , Kobelnyk Volodymyr , Hahaliuk Andrii , Dzyura Volodymyr , Tymoshenko Nadiia 
Published: April 2024

Methods of determining the tangential cutting force are analyzed in the work, including finite-element simulation models, the use of neural networks, analytical methods, and methods of natural experiments. A method for evaluating the influence of feed on the tangential component of the cutting force is proposed, which can be applied to test new tools, tool plates for a certain group of materials. The main advantage of the proposed method is the limited number of experiments and processing of the obtained data according to the theory of a small sample. In this study, the proposed method was used to determine the influence of countersinking feed on tangential cutting force. The basis of the approach is probabilistic and statistical methods and data processing criteria. An assessment of the homogeneity of the results of experimental studies was carried out, the law of distribution of the tangential cutting force, as well as the characteristics of its dispersion, were established. An approach to estimating the maximum value of the tangential component of the cutting force based on the maximum value is presented. This method is universal and can be used for drilling, countersinking, boring and other types of processing.
PENERAPAN METODE DESIGN THINKING PADA PERANCANGAN STOK FOTO PROGRAM STUDI DESAIN KOMUNIKASI VISUAL UNIVERSITAS DIAN NUSWANTORO KEDIRI
Authors: Setyanto Daniar Wikan , Yanuarsari Dzuha Hening , Gardianto Gilang Rizky 
Published: April 2024

AbstrakUniversitas Dian Nuswantoro (Udinus) merupakan perguruan tinggi terakreditasi Unggul yang berdomisili pada beberapa kota yakni Semarang, Kediri dan Lombok. Udinus memiliki kampus utama di Semarang terdiri dari 6 Fakultas dan 23 Program Studi. Udinus juga memiliki Program Studi Di Luar Kampus Utama (PSDKU) yang salah satunya sudah beroperasi yakni di Kediri. Kendala yang dihadapi pada kampus PSDKU Udinus Kediri tersebut adalah belum memiliki stok foto yang bisa digunakan untuk publikasi dan promosi bagi program studi Desain Komunikasi Visual (DKV). Media publikasi dan promosi merupakan sesuatu yang vital untuk Udinus sebagai sebuah Perguruan Tinggi Swasta. Beberapa platform aplikasi yang digunakan Udinus dalam publikasi dan promosi saat ini yakni ada pada instagram dan brosur. Mempertimbangkan dari cakupan promosi yang dilakukan Udinus ke depan akan semakin luas maka diperlukan adanya perancangan stok foto yang dapat dimanfaatkan untuk kebutuhan publikasi dan promosi. Tujuan penelitian ini yakni merancang stok foto untuk Udinus Kediri dengan menggunakan penerapan metode Design Thinking dari Bryan Lawson dan Nigel Cross. Penelitian ini menghasilkan stok foto yang original sesuai dengan kebutuhan publikasi dan promosi program studi Desain Komunikasi Visual Udinus Kediri. Kata Kunci: design thinking, promosi, publikasi, stok foto, Udinus AbstractDian Nuswantoro University (Udinus) is an accredited superior university which is domiciled in several cities, namely Semarang, Kediri and Lombok. Udinus main campus in Semarang consists of 6 faculties and 23 study programs. Udinus also has a Study Program Outside the Main Campus or called PSDKU which is now operating in Kediri. The obstacle faced at the PSDKU Udinus Kediri campus is that it does not yet have stock photos that can be used for publication and promotion for the Visual Communication Design (DKV) study program. Publication and promotional media are vital for Udinus as a private university. Some of the application platforms that Udinus currently uses in publications and promotions are Instagram and brochures. Considering that the scope of promotions carried out by Udinus in the future will become wider, it is necessary to design stock photos that can be used for publication and promotional needs. The aim of this research is to design stock photos for Udinus Kediri using the Design Thinking method of Bryan Lawson and Nigel Cross. This research produces original stock photos in accordance with the publication and promotion needs of the Udinus Kediri Visual Communication Design study program. Keywords: design thinking, promotion, publication, stock photos, Udinus
REPRESENTATION OF CUSTOMER LOYALTY IN AQUA’s ADVERTISEMENT “SAMBUT KEBAIKAN RAMADHAN BERSAMA AQUA”
Authors: Karim Iklilul , Utari Prahastiwi , Hasjarjo Sri 
Published: April 2024

Abstract. Relize or not, advertising is very close to human life. Mass media can display tens or even hundreds of advertisements every day. Therefore, effective and attractive advertisements are needed to attract customers. In general, advertising uses the hard selling method, but now it has turned into soft selling, which does not introduce or sell products directly. Therefore, this research will discuss the representation of customer loyalty in AQUA's advertisement "Sambut Kebaikan Ramadan Bersama AQUA". The method used is qualitative with Roland Barthes semiotic analysis. The results of this study show that AQUA's advertisement "Sambut Kebaikan Ramadan Bersama AQUA'' successfully portrays customer loyalty through the usage of strong signs and hidden meanings. At the denotative level, this AQUA advertisement presents an image of loyal AQUA customers who consume AQUA products joyfully during Ramadan. At the connotative level, this advertisement connects the usage of AQUA products with the values of kindness, spirituality, and brotherhood associated with Ramadan. At the mythological level, this AQUA advertisement builds a narrative that describes AQUA’s customers as part of a solid and loving community. In this context, customer loyalty is represented as a form of adherence to the values embraced by the community, which is signified by the consumption of AQUA’s products.Keywords: Advertisement, Representation, Loyalty, Semiotic
Impact Of Academic Supervision on Improving Performance of Early Childhood Education Teachers in Early Age Learning
Authors: Sum Theresia Alviani , Bora Ignatius Febriyanto R 
Published: April 2024

This research aims to understand and describe the implementation of academic supervision by school principals; assess the performance of Early Childhood Education (PAUD) teachers; determine the influence of academic supervision on PAUD teacher performance; and identify the impact of academic supervision implementation on PAUD teacher performance. This study employed an ex-post facto correlational research design. The population consisted of 594 respondents from various PAUD institutions, with a sample size of 44 respondents selected using Stratified Random Sampling based on the accreditation status of the PAUD institutions. Data were collected through non-test methods, including questionnaires validated using Likert scales and Cronbach's Alpha reliability test, interviews, observations, and documentation. Instrument content validity was 0.89 < 0.75, and reliability was 0.815 < 0.6. Data analysis involved parametric statistical analysis and Spearman correlation tests.
The findings revealed: 1) Academic supervision by school principals in Manggarai Raya was implemented with a percentage of 40% for accreditation A, indicating excellent performance. However, when viewed comprehensively, it was considered low or unsatisfactory due to being below 50%; 2) PAUD teacher performance in Manggarai Raya, assessed using all indicators, fell into the very good category with a percentage of 20%. Yet, when viewed holistically, it was deemed inadequate/poor as it was below 50%; 3) There was a positive influence of academic supervision by school principals on PAUD teacher performance in Manggarai Raya, with a Cohen's value of 0.99, indicating that 99% of the variance in teacher performance was influenced by academic supervision by school principals; 4) The contribution of academic supervision to PAUD teacher performance in Manggarai Raya, assessed using an R2 coefficient, was 0.27% or 27%; and 5) There was an impact of academic supervision on PAUD teacher performance.
Keywords: academic supervision, PAUD teacher performance
Differential impact of fentanyl and morphine doses on ticagrelor-induced platelet inhibition in ST-segment elevation myocardial infarction: a subgroup analysis from the PERSEUS randomized trial
Authors: Garin Dorian , Degrauwe Sophie , Carbone Federico , Musayeb Yazan , Lauriers Nathalie , Valgimigli Marco , Iglesias Juan F. 
Published: April 2024

IntroductionAmong patients with ST-segment elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (PCI), intravenous fentanyl does not enhance ticagrelor-induced platelet inhibition within 2 h compared to morphine. The impact of the total dose of fentanyl and morphine received on ticagrelor pharmacodynamic and pharmacokinetic responses in patients with STEMI remains however undetermined.Materials and methodsWe performed a post-hoc subanalysis of the prospective, open-label, single-center, randomized PERSEUS trial (NCT02531165) that compared treatment with intravenous fentanyl vs. morphine among symptomatic patients with STEMI treated with primary PCI after ticagrelor pretreatment. Patients from the same population as PERSEUS were further stratified according to the total dose of intravenous opioids received. The primary outcome was platelet reactivity using P2Y12 reaction units (PRU) at 2 h following administration of a loading dose (LD) of ticagrelor. Secondary outcomes were platelet reactivity and peak plasma levels of ticagrelor and AR-C124910XX, its active metabolite, at up to 12 h after ticagrelor LD administration. Generalized linear models for repeated measures were built to determine the relationship between raw and weight-weighted doses of fentanyl and morphine.Results38 patients with STEMI were included between December 18, 2015, and June 22, 2017. Baseline clinical and procedural characteristics were similar between low- and high-dose opioid subgroups. At 2 h, there was a significant correlation between PRU and both raw [regression coefficient (B), 0.51; 95% confidence interval (CI), 0.02–0.99; p = 0.043] and weight-weighted (B, 0.54; 95% CI, 0.49–0.59; p &lt; 0.001) doses of fentanyl, but not morphine. Median PRU at 2 h was significantly lower in patients receiving low, as compared to high, doses of fentanyl [147; interquartile range (IQR), 63–202; vs. 255; IQR, 183–274; p = 0.028], whereas no significant difference was found in those receiving morphine (217; IQR, 165–266; vs. 237; IQR, 165–269; p = 0.09). At 2 h, weight-weighted doses of fentanyl and morphine were significantly correlated to plasma levels of ticagrelor and AR-C124910XX.ConclusionIn symptomatic patients with STEMI who underwent primary PCI after ticagrelor pretreatment and who received intravenous opioids, we found a dose-dependent relationship between the administration of intravenous fentanyl, but not morphine, and ticagrelor-induced platelet inhibition.
Gestational weight gain and pregnancy outcomes in Chinese women with type 2 diabetes mellitus: evidence from a tertiary hospital in Beijing
Authors: Yan Xin , Jia Jianrui , Zheng Wei , Yuan Xianxian , Wang Jia , Zhang Lirui , Li Guanghui 
Published: April 2024

ObjectiveTo examine the effects of gestational weight gain on pregnancy outcomes and determine the optimal range of weight gain during pregnancy for Chinese women with type 2 diabetes mellitus.MethodsThis retrospective cohort study included 691 Chinese women with type 2 diabetes mellitus from 2012 to 2020. The study utilized a statistical-based approach to determine the optimal range of gestational weight gain. Additionally, multivariate logistic regression analysis was conducted to assess the impact of gestational weight gain on pregnancy outcomes.Results(1) In the obese subgroup, gestational weight gain below the recommendations was associated with decreased risks of large for gestational age (adjusted odds ratio [aOR] 0.19; 95% confidence interval [CI] 0.06-0.60) and macrosomia (aOR 0.18; 95% CI 0.05-0.69). In the normal weight subgroup, gestational weight gain below the recommendations of the Institute of Medicine was associated with decreased risks of preeclampsia (aOR 0.18; 95% CI 0.04-0.82) and neonatal hypoglycemia (aOR 0.38; 95% CI 0.15-0.97). (2) In the normal weight subgroup, gestational weight gain above the recommendations of the Institute of Medicine was associated with an increased risk of large for gestational age (aOR 4.56; 95% CI 1.54-13.46). In the obese subgroup, gestational weight gain above the recommendations was associated with an increased risk of preeclampsia (aOR 2.74; 95% CI 1.02, 7.38). (3) The optimal ranges of gestational weight gain, based on our study, were 9-16 kg for underweight women, 9.5-14 kg for normal weight women, 6.5-12 kg for overweight women, and 3-10 kg for obese women. (4) Using the optimal range of gestational weight gain identified in our study seemed to provide better prediction of adverse pregnancy outcomes.ConclusionFor Chinese women with type 2 diabetes, inappropriate gestational weight gain is associated with adverse pregnancy outcomes, and the optimal range of gestational weight gain may differ from the Institute of Medicine recommendations.
Localizing the sustainable development goals in smart and sustainable cities: how can citizen-generated data support the local monitoring of SDGs? A case study of the Brussels Capital Region
Authors: Borghys Koen , Vandercruysse Laurens , Veeckman Carina , Temmerman Laura , Heyman Rob 
Published: April 2024

Introduction: The Sustainable Development Goals (SDGs) serve as the global reference framework for sustainable development endeavors. However, traditional data sources, including official statistics, fall short in effectively measuring SDG performance, due to substantial gaps in the availability of reliable, timely, actionable, disaggregated, and accessible information for policy formulation. This research explores the SDG monitoring potential of citizen-generated data to enhance local environmental in the Brussels Capital Region.Methods: Employing a qualitative approach, the study first defines and maps essential characteristics of citizen-generated data for inclusion in environmental SDG monitoring. Subsequently, expert interviews refine these characteristics and explore design requirements tailored to the Brussels Capital Region.Results: The research culminates in a framework linking essential citizen-generated data characteristics to design requirements, ensuring data suitability for local environmental SDG monitoring.Discussion: This framework advances the existing literature by specifically addressing local environmental SDG monitoring through citizen-generated data. It offers practical insights for local stakeholders, particularly policymakers, aiming to overcome barriers to the uptake of citizen-generated data and ultimately enhances environmental SDG monitoring in the Brussels Capital Region. The framework’s applicability in other regions or for non-environmental SDG indicators remains a potential avenue for future research.