«Вероятный избиратель»: эволюция и модификации модели Гэллапа

В статье рассматриваются методики составления прогнозов результатов выборов на основе опросных данных. В основе большинства таких прогнозов лежит методика, сконструированная Дж. Гэллапом в середине прошлого века. Авторы прослеживают эволюцию модели Дж. Гэллапа от хрестоматийной «победы 1936 года» до современных модификаций. Описаны эксперименты, проведенные в ходе формирования прогнозных моделей, представлен перечень вопросов, используемых американскими полстерами для прогнозирования результатов выборов, подробно разобран механизм подсчета баллов в моделях отсечения (cutoff), рассмотрены ограничения модели Гэллапа

Industrial sector engineering staff development systems

This article discusses methods for the employees quality and performance improvement in the electric power industry enterprises. The characteristics of the factors influencing the development of personnel are given. The foreign experience of corporate training is analyzed, which identifies ways to improve labor activity, maintain labor discipline, increase the level of labor motivation, develop corporate culture and increase the employee loyalty at industrial enterprises. The structure of personnel training methods at the enterprise is schematically presented. The article substantiates the need for the formation of a qualified human resource that provides the company with the growth of economic indicators of production activity, a high degree of competitiveness in the industry market, and a positive image of the organizatio

Evaluation of a quality improvement intervention to reduce anastomotic leak following right colectomy (EAGLE): pragmatic, batched stepped-wedge, cluster-randomized trial in 64 countries

Background Anastomotic leak affects 8 per cent of patients after right colectomy with a 10-fold increased risk of postoperative death. The EAGLE study aimed to develop and test whether an international, standardized quality improvement intervention could reduce anastomotic leaks. Methods The internationally intended protocol, iteratively co-developed by a multistage Delphi process, comprised an online educational module introducing risk stratification, an intraoperative checklist, and harmonized surgical techniques. Clusters (hospital teams) were randomized to one of three arms with varied sequences of intervention/data collection by a derived stepped-wedge batch design (at least 18 hospital teams per batch). Patients were blinded to the study allocation. Low- and middle-income country enrolment was encouraged. The primary outcome (assessed by intention to treat) was anastomotic leak rate, and subgroup analyses by module completion (at least 80 per cent of surgeons, high engagement; less than 50 per cent, low engagement) were preplanned. Results A total 355 hospital teams registered, with 332 from 64 countries (39.2 per cent low and middle income) included in the final analysis. The online modules were completed by half of the surgeons (2143 of 4411). The primary analysis included 3039 of the 3268 patients recruited (206 patients had no anastomosis and 23 were lost to follow-up), with anastomotic leaks arising before and after the intervention in 10.1 and 9.6 per cent respectively (adjusted OR 0.87, 95 per cent c.i. 0.59 to 1.30; P = 0.498). The proportion of surgeons completing the educational modules was an influence: the leak rate decreased from 12.2 per cent (61 of 500) before intervention to 5.1 per cent (24 of 473) after intervention in high-engagement centres (adjusted OR 0.36, 0.20 to 0.64; P < 0.001), but this was not observed in low-engagement hospitals (8.3 per cent (59 of 714) and 13.8 per cent (61 of 443) respectively; adjusted OR 2.09, 1.31 to 3.31). Conclusion Completion of globally available digital training by engaged teams can alter anastomotic leak rates. Registration number: NCT04270721 (http://www.clinicaltrials.gov)