bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Landmark Series: Intraductal Papillary Mucinous Neoplasms of the Pancreas—From Prevalence to Early Cancer Detection
Authors: Pollini Tommaso , Wong Paul , Maker Ajay V. 
Published: January 2023

AbstractModern series report a prevalence of pancreatic cysts in the general population of up to 50% in prospective studies. Of these, about half will be pancreatic cystic neoplasms (PCNs) that have varying degrees of malignant potential. Intraductal papillary mucinous neoplasms (IPMNs) of the pancreas are the most common PCNs and are known predecessors of pancreatic adenocarcinoma. Critically, they are one of the only radiographically identifiable precursors of pancreatic cancer and thus provide an opportunity for early cancer detection and surgical resection with curative intent. The combination of high prevalence and potential for malignant degeneration underscore the relevance of discussing the best management of IPMNs and improving the existing standard of care. Landmark data on IPMN prevalence, guidelines, surveillance, biomarkers, and immune landscape are highlighted.
COMMUNICATION TOOLS OF THE INTERNET ENVIRONMENT AS A MODERN MEANS OF BUSINESS PROMOTION
Authors: Ponachugin Aleksandr V. , Bityugova Anastasia A. , Druzhinina Ksenia E. 
Published: January 2023

For the successful sale of goods and services in a modern digital society, there is a need to transfer marketing to the Internet environment. The main tools of marketing communications are advertising, PR, sales promotion and direct marketing, each of which is implemented in the online space in its own way. One of the most popular methods of online advertising today is contextual advertising, which in turn can be divided into search and advertising in networks. One of the main PR methods is social media marketing (SMM). work with the brand house in social networks, simplification of communication between the company and the consumer, content creation, involvement of the masses in the life of the company. Direct marketing is building direct marketing communication personally with each consumer, which is carried out through such tools as email newsletters, mailings on social networks and instant messengers, push notifications. Examples of sales promotion (sales promotion) are: a discount for a repost or a coupon for a product / service for a review on a website or any feedback platform. Conducting online events, competitions, distribution of prizes, etc., can also serve as a sales promotion technique. The paper also highlights the question of the degree of importance of the company’s own website, as well as an account on a social network for the development and promotion of business in the Internet space.
Purpose. Analytical analysis of the four components of communication marketing, as well as solving the problem of choosing between traditional and modern methods of business promotion.
Methodology of this article is the analysis of scientific literature in the field of business promotion, followed by a synthesis of the data obtained.
Results: conclusions about the advantages of modern methods of promotion using Internet technologies.
Practical implications: results obtained can be applied in the field of marketing of both small and medium-sized businesses to select the most effective model for promoting an enterprise.
APPLYING CLASSICAL MANAGEMENT KEYNOTES OF ORGANISATIONAL BEHAVIOUR IN AGILE MANAGEMENT APPROACHES
Authors: Plotnikov Andrei V. , Elkin Sergei A. 
Published: January 2023

This paper analyzes the works of management classics such as Russell Ackoff, Nancy Adler, Frederick Herzberg, Chris Argyris, Bennis Warren, Lyndall Urwick, experts of Aston Group, and others. A common bond between them is organizational behavior and the fact that their work was written in the last century and that elements of their theories were the basis for the neoclassical management theories that predominate today.
Purpose. The aim is to identify commonalities with the iterative-incremental (agile) approach to development and management from classical management theories.
Methodology. The paper analyses classical management papers in organizational behavior and leadership theory to identify commonalities with the iterative-incremental approach to management. The two categories are considered holistically, as leadership can determine organizational behavior. The paper applies ontological and integrated approaches.
Results. The paper identifies standard features of classical theories and agile approaches to management. It indicates that classical approaches to management have formed the basis of agile approaches to management.
Practical implications. The results apply to social management and organizational psychology scholars. In addition, the results will help to scientists write textbooks and manuals on management theory and related disciplines. The study’s results contribute to developing the history of managerial thought.
IDENTIFICATION OF THE MAIN SECURITY THREATS FOR SMALL AND LARGE NETWORKS
Authors: Ponachugin Aleksandr V. , Userdova Alina V. , Shekhmametyeva Lilia R. 
Published: January 2023

In modern conditions, it is quite difficult to keep track of all existing threats to network security. The article considers the main security threats for small and large networks in the context of their characteristics and features of detection.
Purpose. Analytical analyze the main security threats for small and large networks, as well as how they are presented.
Methodology: when writing the article, the analysis of scientific literature in the field of the main issues of ensuring network security was used, followed by a synthesis of the data obtained.
Results: the main security threats for small and large networks are formulated.
Practical implications: the results obtained can be applied in the field of information security and personal data protection.
ECONOMETRIC MODELING OF THE INTERNATIONAL HAPPINESS INDEX
Authors: Tuskov Andrey A. , Goldueva Daria A. 
Published: January 2023

Purpose – offer different variants of building multiple regression models to describe real economic processes.
Method or methodology of the work: the article uses the econometric method of data analysis.
Results: it was shown that econometric methods are effective in describing the hidden dependencies of the economic system. The study proposes several ways to build regression models: the classical version using the matrix of pairwise correlation coefficients (correlation pleiades method), the method of inflation factors, denying the presence of “moderately strong” dependence, after which the removal of “unnecessary” factors was performed using Gretl tool “Test for excess variables”, as well as using the principal components method to consider the influence of all factors on the dependent variable. In order to facilitate the interpretation of the results obtained, the article shows the transition from the principal components to the original data. The model is built on a publicly available dataset available to the research community.
The sphere of application of the results: in practice, the results are useful for planning effective strategies for the development of individual states, as well as a manual for beginner econometricians wishing to learn different approaches to econometric modeling with the use of effective tools.
An Adaptive Lagrangian-Based Scheme for Nonconvex Composite Optimization
Authors: Hallak Nadav , Teboulle Marc 
Published: January 2023

This paper develops a novel adaptive, augmented, Lagrangian-based method to address the comprehensive class of nonsmooth, nonconvex models with a nonlinear, functional composite structure in the objective. The proposed method uses an adaptive mechanism for the update of the feasibility penalizing elements, essentially turning our multiplier type method into a simple alternating minimization procedure based on the augmented Lagrangian function from some iteration onward. This allows us to avoid the restrictive and, until now, mandatory surjectivity-type assumptions on the model. We establish the iteration complexity of the proposed scheme to reach an ε-critical point. Moreover, we prove that the limit point of every bounded sequence generated by a procedure that employs the method with strictly decreasing levels of precision is a critical point of the problem. Our approach provides novel results even in the simpler composite linear model, in which the surjectivity of the linear operator is a baseline assumption. Funding: N. Hallak’s research was partially supported by the Israel Science Foundation [Grant 637/21]. M. Teboulle’s research was partially supported by the Israel Science Foundation [Grants 1844-16 and 2619-20].
Monotone Inclusions, Acceleration, and Closed-Loop Control
Authors: Lin Tianyi , Jordan Michael I. 
Published: January 2023

We propose and analyze a new dynamical system with a closed-loop control law in a Hilbert space [Formula: see text], aiming to shed light on the acceleration phenomenon for monotone inclusion problems, which unifies a broad class of optimization, saddle point, and variational inequality (VI) problems under a single framework. Given an operator [Formula: see text] that is maximal monotone, we propose a closed-loop control system that is governed by the operator [Formula: see text], where a feedback law [Formula: see text] is tuned by the resolution of the algebraic equation [Formula: see text] for some [Formula: see text]. Our first contribution is to prove the existence and uniqueness of a global solution via the Cauchy–Lipschitz theorem. We present a simple Lyapunov function for establishing the weak convergence of trajectories via the Opial lemma and strong convergence results under additional conditions. We then prove a global ergodic convergence rate of [Formula: see text] in terms of a gap function and a global pointwise convergence rate of [Formula: see text] in terms of a residue function. Local linear convergence is established in terms of a distance function under an error bound condition. Further, we provide an algorithmic framework based on the implicit discretization of our system in a Euclidean setting, generalizing the large-step hybrid proximal extragradient framework. Even though the discrete-time analysis is a simplification and generalization of existing analyses for a bounded domain, it is largely motivated by the aforementioned continuous-time analysis, illustrating the fundamental role that the closed-loop control plays in acceleration in monotone inclusion. A highlight of our analysis is a new result concerning [Formula: see text]-order tensor algorithms for monotone inclusion problems, complementing the recent analysis for saddle point and VI problems. Funding: This work was supported in part by the Mathematical Data Science Program of the Office of Naval Research [Grant N00014-18-1-2764] and by the Vannevar Bush Faculty Fellowship Program [Grant N00014-21-1-2941].
Precommitments in Two-Sided Market Competition
Authors: Hu Ming , Liu Yan 
Published: January 2023

Problem definition: We consider a two-sided market competition problem where two platforms, such as Uber and Lyft, compete on both supply and demand sides and study the impact of precommitments in a variety of practically motivated instruments on the equilibrium outcomes. Academic/practical relevance: We extend a set of classic oligopoly pricing results to account for two-sided competition under demand uncertainty. Methodology: We investigate multi-stage competition games. Results: We start with a sufficiently low demand uncertainty. First, we show that a precommitment made on the less competitive (demand or supply) side (on price or wage) has a less intense outcome than no commitment (i.e., spot-market price and wage competition). Then we show that, somewhat surprisingly, if the competition intensities of both sides are sufficiently close, the commission precommitment, where the platforms first compete in setting their commission rates and then their prices, is less profitable than no precommitment at all, and vice versa. Furthermore, we show that the capacity precommitment, in which the platforms first commit to a matching capacity and then set price and wage simultaneously subject to the precommitted capacity, leads to the most profitable outcome of all competition modes and extends the celebrated Kreps-Scheinkman equivalency to the two-sided market (without demand uncertainty). Then we extend the comparisons of various competition modes to account for a relatively high demand uncertainty. We show that the comparison between the spot-market price and wage competition and the commission precommitment stays the same as that with a sufficiently low demand uncertainty. In addition, the more flexible competition modes, such as no commitment and commission precommitment, benefit from higher demand uncertainty (with a fixed mean demand) because of their operational flexibility in response to the market changes. Further, a relatively high demand uncertainty may undermine or enhance the value of the wage precommitment, as opposed to no commitment. Finally, we also account for platforms with asymmetric parameters and matching friction and find that our main insights tend to be robust. Managerial implications: Our results caution platforms that a precommitment to the wrong instrument can be worse than no commitment at all. Moreover, the regulation of classifying gig workers as employees, despite many of its benefits to workers, may lead to a less competitive market outcome and, surprisingly, hurt gig workers by paying them lower wages. Funding: M. Hu was supported by the Natural Sciences and Engineering Research Council of Canada [Grants RGPIN-2015-06757, RGPIN-2021-04295]. Y. Liu was supported by the Hong Kong Research Grants Council, Direct Allocation Grant [Project ID P0036818]. Supplemental Material: The online appendices are available at https://doi.org/10.1287/msom.2022.1173 .
Did Massachusetts COVID-19 vaccine lottery increase vaccine uptake?
Authors: Kim Yeunkyung , Kim Jihye , Li Yue 
Published: January 2023

Objective
We evaluated whether the Massachusetts COVID-19 vaccine lottery increased vaccine uptake.

Methods
We analyzed data from the Centers for Disease Control and Prevention COVID-19 Vaccine Tracker to identify total number of adults aged 18 to 64 who received at least first dose of the COVID-19 vaccine or who were fully vaccinated in Massachusetts, Connecticut, Rhode Island, New Jersey, and Vermont during the study period of March 6 –July 31, 2021. Each of the five states contributed 148 days of a daily report on cumulative number of vaccinated people, comprising 740 state-days as the total sample size. We conducted multivariable, state-day level difference-in-differences (DID) regression using a negative binomial regression model that compared the change in outcomes for Massachusetts to those of four geographically adjacent comparison states without the lotteries, before and after the Massachusetts vaccine lottery announcement (June 15, 2021). Our analyses controlled for key state-level characteristics obtained from the American Community Survey as well as day fixed-effects to capture secular trends in the outcomes.

Results
Massachusetts COVID-19 vaccine lottery was not associated with a significant increase in the number of adults aged 18 to 64 who were fully vaccinated or received at least one dose of the vaccine, compared with other states [Full dose, incidence rate ratio (IRR): 1.04, 95% confidence interval (CI): 0.97 to 1.11, P > 0.05; At least one dose, IRR: 0.99, 95% CI: 0.93 to 1.06, P > 0.05].

Conclusions
There was insufficient evidence to conclude that Massachusetts COVID-19 vaccine lottery was associated with increased number of adult COVID-19 vaccinations.
Clinical and laboratory presentation of first-time antenatal care visits of pregnant women in Ghana, a hospital-based study
Authors: Abuku Vital Glah , Allotey Emmanuel Alote , Akonde Maxwell 
Published: January 2023

BackgroundThe WHO recommends pregnant women attend antenatal clinic at least three times during pregnancy; during the first, second and third trimesters. During these visits, an array of clinical and laboratory tests is conducted. The information obtained plays an important role not only in the management and care of pregnancy, but also guides policies targeted at addressing pregnancy-induced health challenges. This study therefore presents laboratory and clinical information of pregnant women at their first antenatal visits.MethodsThe study was cross-sectional in design which retrospectively reviewed laboratory and clinical data of pregnant women attending their first antenatal clinic (ANC) at the Comboni Hospital, Volta region, Ghana. The data reviewed included information on hemoglobin level, hemoglobin phenotype, malaria diagnostics, Human Immunodeficiency Virus test (HIV), glucose-6-phosphate dehydrogenase (G6PD) deficiency, Hepatitis C Virus (HCV) test, Hepatitis B Virus (HBV) test, Syphilis test, blood pressure, age, urine glucose, and urine protein. The hemoglobin level was assayed with a hemoglobinometer. Qualitative lateral flow chromatographic immunoassay techniques were used to diagnose the HIV, HCV, HBV, syphilis, and malaria status of the pregnant women. Urine dipstick was used assay for the urine protein and urine glucose, whilst the methemoglobin test was used for the G6PD deficiency and alkaline hemoglobin electrophoresis for hemoglobin phenotype. Data on demographic, anthropometric and vital signs such as age, weight and blood pressure were also collected. Descriptive statistics were performed. Frequency and percentages were used to describe the categorical variables and means and standard deviations used to describe the continuous variables.ResultsHemoglobin S(Hb S) was found in 12.8% of the women with 73.4% having hemoglobin levels below 11.5g/dl. On G6PD deficiency, 1.6% and 0.8% were partially and fully defective respectively. Also, urine protein (1.2%) and glucose (0.4%) were detected. The prevalence of HBV, HCV and malaria were 4.4%, 3.6% and 2.4%, respectively.ConclusionAnemia in pregnancy was high among the study sample. Malaria and hepatitis infections were observed in the study sample. Policies on maternal health should be targeted at providing better nutritional options, that can enhance the hemoglobin level during pregnancy. Pregnant women should benefit from enhanced surveillance for HIV, HBV, HCV, and syphilis.
Políticas de Crédito Rural na Agricultura Familiar no Sertão Pernambucano / Rural Credit Policies in Family Agriculture in the Sertão Pernambucano
Authors: Alves Isadora Cibelly Lima , Sobral Eryka Fernanda Miranda , Melo Fagner José Coutinho de , Lima Filho Raimundo Nonato 
Published: January 2023

Esta pesquisa objetivou investigar se o uso de políticas de crédito rural está correlacionado com a formação de renda do produtor rural. Através de uma pesquisa do tipo survey, foi aplicado questionário on-line a produtores rurais do município de Salgueiro, Pernambuco. A partir modelo de regressão linear evidenciou-se uma relação positiva entre o uso de crédito rural e o valor da produção com uma diferença, em média, de 17,4% maior na renda em relação aos que não fazem uso dessa política no município de Salgueiro. Contudo, embora a agricultura familiar tenha uma grande participação na economia do Brasil e através dos créditos disponibilizados consigam expandir sua produção, ainda é necessário um maior investimento em políticas públicas de educação de gestão rural garantindo a melhoria na qualidade de vida das pessoas que lá vivem. Abstract: This research aimed to investigate whether the use of rural credit policies is correlated with the income formation of rural producers. Through a survey, an online questionnaire was applied to rural producers in the municipality of Salgueiro, Pernambuco. From the linear regression model, a positive relationship was evidenced between the use of rural credit and the value of production with a difference, on average, of 17.4% greater in income compared to those who do not use this policy in the municipality of Willow tree. However, although family farming has a large share in the Brazilian economy and through the available credits, they are able to expand their production, there is still a need for greater investment in public policies for rural management education, ensuring an improvement in the quality of life of the people who live there.Keywords: rural credit; family farming; Salgueiro; Pernambuco.
Características e Autonomia dos Gestores das Unidades de Saúde na Atenção Básica / Characteristics and Autonomy of Health Unit Managers in Primary Care
Authors: Oliveira Elias Ricardo de , Mendonça Eliabe Monteiro 
Published: January 2023

Resumo: O objetivo deste estudo é avaliar a importância de um gestor na Unidade de Saúde da Família e a importância de sua autonomia para implantar ações na comunidade adscrita a sua Unidade de Saúde. A metodologia utilizada foi uma revisão bibliográfica na Plataforma da Biblioteca Virtual em Saúde em artigos brasileiros nas revistas científicas e livros governamentais além de uma pesquisa qualitativa objetiva realizada através de questionário on-line dirigido a dez gestores de Unidades de Saúde da Família O estudo conclui que a importância dos gestores iguala-se a importante missão de manter a saúde da população residente no país da melhor maneira possível dentro dos limites de sua capacidade buscando ampliar, aperfeiçoar, modernizar e inovar a cada segundo a demanda cada dia maior em nossa sociedade, e compreende a importância da autonomia desses profissionais para desenvolver ações que melhore a oferta dos serviços de saúde para a sociedade.Palavras-chave: Gestão na Atenção Básica; Sistema Único de Saúde; Unidades de Saúde da Família; Estratégia de Saúde da Família. Abstract: The objective of this study is to evaluate the importance of a manager in the Family Health Unit and the importance of his autonomy to implement actions in the community attached to his Health Unit. The methodology used was a bibliographic review on the Platform of the Virtual Health Library in Brazilian articles in scientific journals and government books, in addition to an objective qualitative research carried out through an online questionnaire addressed to ten managers of Family Health Units The study concludes that the importance of managers is equal to the important mission of maintaining the health of the population residing in the country in the best possible way within the limits of their capacity, seeking to expand, improve, modernize and innovate every day according to the increasing demand in our society, and understands the importance of the autonomy of these professionals to develop actions that improve the supply of health services to society.Keywords: Management in Primary Care; Health Unic System; Family Health Units; Family Health Strategy.