Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

Because pork meat is in high demand, pig farms implement artificial insemination to produce a greater proportion of this protein; however, it is valuable to take into account many aspects at the time of heat detection and timely inseminate to achieve production goals. In this article we present the progress of a bibliographical review on the repeated identification of errors or oversights, incurred by human factors, that do not favor the pregnancy of the sows inseminated with any of the different techniques or in the procedures carried out for the collection and evaluation of the semen. For this, various types of documents (mainly articles and degree theses) have been considered in university repositories, in indexed journals and in recognized databases. In these reviews, it is verified that the personnel in charge of carrying out each one of the processes to inseminate must not only have a deep and updated knowledge about the characteristics of the reproducers or about the analysis of porcine sperm, but must also know about the different stages of the sow's estrus and the optimal moment to inseminate; important factors to achieve the expected pregnancy and increase reproductive rates on farms. In this sense, the decrease in the percentage of artificially inseminated pregnant sows is attributed to failures directly related to this process, ignorance of specific factors in each of the steps to inseminate and insufficient preparation of the people who perform it; For this reason, it is important that they have a high level of training that allows them to implement and develop the different insemination techniques to improve and increase pig production

Introducción.  En la teoría de los tipos de personalidad vocacional y ambientes laborales de J. Holland, el modelo hexagonal organiza los datos personales y ocupacionales, y sirve para definir el grado de consistencia en la configuración de la personalidad y ambientes de trabajo, así como el grado de congruencia entre una persona y su ambiente. El objetivo del presente estudio fue analizar la validez estructural del modelo hexagonal de Holland y el jerárquico de Gati en una muestra de 636 estudiantes de bachillerato mexicanos, a través de las puntuaciones proporcionadas en la Búsqueda Autodirigida (SDS).Método.  Para analizar el ajuste de estos modelos se aplicó la prueba de aleatorización de relaciones de orden hipotetizadas (RTOR) y se llevaron a cabo escalamientos multidimensionales (EMD) no métricos.Resultados. El tipo de personalidad social presentó la puntuación media más alta, a continuación el tipo emprendedor y después el artístico y el investigador. Las puntuaciones medias más bajas correspondieron a los tipos realista y convencional. En relación con la consistencia interna se obtuvieron coeficientes alfa de Cronbach de aceptables (.765) a buenos (.845). Los resultados de la prueba RTOR indicaron un ajuste significativo moderado (IC=.65) del modelo de Holland y un ajuste alto (IC=.778) del modelo de Gati a los datos observados. La solución del EMD en la muestra total (Stress=.01; RSQ=.99) mostró que los tipos se distribuyen según el orden RIASEC, pero la disposición espacial entre ellos forma un círculo deforme porque el tipo investigador se sitúa hacia el centro del círculo. El análisis del ajuste según el sexo y curso escolar no indicó diferencias significativas (p>.05), aunque los estudiantes de tercero mostraron un nivel de ajuste más alto que los de primero y segundo de bachillerato.Discusión y conclusiones.  Los resultados aportan evidencia empírica de validez estructural de los modelos de Holland y Gati en la muestra de estudiantes. Estos modelos se pueden considerar una representación adecuada de los intereses vocacionales de estos estudiantes. Los resultados también aportan evidencia de validez de constructo de las puntuaciones del SDS, lo cual presenta implicaciones prácticas sobre la utilidad de este instrumento en la orientación vocacional y profesional.

This article discusses intra-party political control. First, it constructs a political control index (PCI) to assess the ability of party members to hold their leaders accountable. The PCI is then used to analyze party statutes in Mexico. Among the main findings is that both in the parties that obtain the most votes and positions (Movimiento Regeneración Nacional [Morena], Partido Acción Nacional [PAN], and Partido Revolucionario Institucional [PRI]) and in the minority parties (Partido de la Revolución Democrática [PRD], Partido del Trabajo [PT], Partido Verde Ecologista de México [PVEM] and Movimiento Ciudadano [MC]) there are low levels of political control.

In 2019 the Second High-Level UN Conference on South-South Cooperation was held, revitalizing South-South and Triangular Cooperation. It was intended to incorporate the principal advances in the international agenda on the effectiveness of aid, financing and the 2030 Agenda, which is the framework of this article. From an analytical perspective, the aim is to identify the main challenges posed by the conference for the private sector (PS) in its connection with South-South (SSC) and triangular (TC) cooperation in relation to the Sustainable Development Goals (SDGs), which require multi-stakeholder approaches in a post-pandemic context of international crisis. Three levels of challenges are identified: programmatic, operational, and general.

Educational policy in Mexico is the responsibility of all three levels of government, yet in the case of the municipalities, their activities are tangential and rarely reflected in their government agendas. The objective of this article is therefore to explore the incorporation of education in municipal development plans in the state of Tlaxcala, understood as the formal agenda of activities, through a methodology of reviewing historical documents. The findings show inconsistencies in the identification of educational needs and in the incorporation of content related to that established by the legislation.

Global governance has been widely embraced as an object of analysis and as a way of “seeing” world politics. Yet we still know little about how publishing has evolved. This article presents the first systematic exploration of these patterns. It uses an original dataset of global governance research to answer three first-order questions: How has publishing varied over time? What issues have scholars focused on? And who has been publishing in the field? The authors found that research has grown and become increas- ingly diverse—but selectively so. Some marginalized issues feature more prominently than in the rest of international relations, but there are blind spots too. Further, while research is less American and women have been comparatively more active relative to other areas, geographical diversity remains extremely limited. Scholars based in the Global South have been the first authors of less than 14 percent of all publications. To conclude, the article reflects on implications for the field.