De Chan Santa Cruz a Santa Cruz de Bravo. ANÁLISIS SOCIODEMOGRÁFICO DE LOS MAYAS CRUZO’OB EN EL CENSO DE 1930

Lendy Rosario Ek Ek (2023, [Tesis de maestría])

“La elección del tema de investigación obedeció a las posibilidades de encontrar acervos históricos disponibles durante la contingencia sanitaria; pero al mismo tiempo, quería trabajar un tema que respondiera a mi interés por estudiar la región a la pertenezco. Ello representó el desafío de adentrarme a fuentes que desconocía, en el contexto particular que trazó la pandemia. Es así como, a propuesta de mi directora de tesis, decidí centrar mi investigación en la población maya macehualoób y su presencia en el censo de 1930, a cuyas boletas censales y tabulados básicos pude acceder mediante los sitios electrónicos de Family Search y del Instituto Nacional de Estadística y Geografía (INEGI). La guerra maya suscitada en el nororiente de la península a mediados del siglo XIX reconfiguro el espacio que hoy ocupa el Estado de Quintana Roo y dentro de ella, a sus habitantes. El enfrentamiento tuvo como principales actores a las autoridades locales y federales, incluidos militares, y la población originaria de la zona. La rebelión originada desde los atropellos cometidos hacia los mayas desde la colonia y las disputas por sobre la posesión de las tierras, estalló en la ciudad maya de Tepich en julio en 1847. Rápidamente se expandió en el resto del territorio, tomando nuevos seguidores, nuevas formas de ataque y defensa, y sobre todo nuevos argumentos de lucha. Dentro de estas reconfiguraciones nace Noj Kaj Santa Cruz Baalam Naj Kampokolché, mejor conocida como Chan Santa Cruz, ciudad fundada por los mayas replegados en el centro de la selva. Nombrada así por la Cruz Parlante, Chan Santa Cruz surgió como un espacio sagrado, santuario de la Cruz y refugio de los mayas insurrectos que por más de medio siglo mantuvieron la lucha. Fue hasta 1901, que Chan Santa Cruz pasó a ser la ciudad de Santa Cruz “de Bravo”".

Chan Santa Cruz, Quintana Roo - Historia. Santa Cruz de Bravo, Quintana Roo - Historia. Quintana Roo (México) - Censos 1930. Cruzoobs - Guerras - México - Quintana Roo. Quintana Roo (México : Estado) - Historia - Siglo XX. Quintana Roo (México : Estado) - Historia - Guerra de Castas, 1847-1855. Tesis - Maestría en Historia, Peninsular. CIENCIAS SOCIALES HISTORIA HISTORIA DE PAÍSES HISTORIA LOCAL HISTORIA LOCAL

Caracterización fisicoquímica de suelo y agua para evaluar la salinidad en el acuífero La Misión, Baja California, México

Physicochemical characterization of soil and water to evaluate salinity in La Misión aquifer, Baja California, Mexico

Vanessa Inés González Riaño (2023, [Tesis de maestría])

El agua subterránea se considera uno de los recursos más importantes a nivel mundial en los sectores de agua potable y agricultura, sobre todo en regiones áridas y semiáridas donde no solo hay menos precipitación sino una elevada evaporación que podría afectar la salinización del suelo y el agua debido a su estrecha relación. El trabajo tiene como objetivo evaluar el tipo de salinidad en el acuífero La Misión, Baja California, a partir del análisis fisicoquímico de suelo y agua subterránea bajo la hipótesis de que existe una relación en la presencia de fases minerales salinas del suelo y las concentraciones de sales en el agua del acuífero. Para ello, se recolectaron y caracterizaron fisicoquímicamente 19 muestras de suelo y agua subterránea en temporada de estiaje (2022) y lluvias (2023) utilizando estadísticas multivariadas y análisis hidrogeoquímicos. Además, se analizaron las fases minerales presentes en el suelo con Difracción de Rayos X (DRX). Los resultados mostraron que el contenido de sólidos disueltos totales en el agua disminuye conforme los sitios se alejan de la línea de costa. De manera general y considerando la composición química de las aguas, éstas se clasifican como ligeramente salinas con pH entre 5.5 y 8.3, y temperaturas entre 15 y 40 °C. Los diagramas de Piper y Chadha mostraron que predominan dos tipos de facies hidroquímicas en el acuífero: Ca-Mg-SO4/Cl y Na-Cl y el diagrama de Gibbs muestra que prevalecen los procesos por meteorización de las rocas y evaporación (500% mayor que la precipitación media anual). De acuerdo con la conductividad eléctrica, pH, porcentaje de sodio intercambiable y la relación de adsorción de sodio en el agua, los suelos superficiales del acuífero en su totalidad son suelos no salinos y no sódicos, además, el análisis de DRX no detectó fases minerales salinas en el suelo. Finalmente, se encontró que la actividad agrícola, el uso de fertilizantes, el hidrotermalismo, la evaporación y la geología podrían estar causando la salinidad del agua subterránea en el área de estudio.

Groundwater is considered one of the most important resources of drinking water worldwide as well as the agriculture sectors, especially in arid and semi-arid regions. Where there is not only less precipitation but also high evaporation rates that could affect soil and water salinization due to their close relationship. The objective of this work is to evaluate the type of salinity in La Misión aquifer, Baja California, based on the physicochemical analysis of soil and groundwater. Under the hypothesis that there is a relationship between the presence of saline mineral phases in the soil and the concentrations of salts in the aquifer’s water. For this purpose, 19 soil and groundwater samples were collected and physicochemically characterized during the dry season (2022) and rainy season (2023) using multivariate statistics and hydrogeochemical analysis. In addition, the mineral phases present in the soil were analyzed with X-Ray Diffraction (XRD). The results showed that the content of total dissolved solids in the water decreases as the sites are farer from the coastline. In general, and considering the chemical composition of the waters, they are classified as slightly saline with pH between 5.5 and 8.3, and temperatures between 15 and 40 °C. The Piper and Chadha diagrams showed that two types of hydrochemical facies predominate in the aquifer: Ca-Mg-SO4/Cl and Na-Cl. The Gibbs diagram shows that rock weathering and evaporation processes prevail (500% greater than average annual precipitation). According to the electrical conductivity, pH, percentage of exchangeable sodium and the sodium adsorption ratio in water, the surface soils of the aquifer as a whole are non-saline and non-sodic soils. The XRD analysis did not detect saline mineral phases in the soil. Finally, it was found that agricultural activity, fertilizer use, hydrothermalism, evaporation and geology could be causing groundwater salinity in the study area.

hidrogeoquímica, Difracción de Rayos X, RAS, PSI hydrogeochemistry, X Ray Diffraction, ESP, SAR CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA CIENCIAS DE LA TIERRA Y DEL ESPACIO CIENCIAS DEL SUELO (EDAFOLOGÍA) FÍSICA DE SUELOS FÍSICA DE SUELOS

Violencia política en el sur de Chile: Estado, grupos económicos y Pueblo Mapuche. La Alianza Territorial Mapuche (Pu Lof Xawun) en el gobierno de Michelle Bachelet

Javiera Yanina Donoso Jiménez (2010, [Artículo])

El objeto de esta investigación es analizar la relación existente entre el Estado chileno durante el gobierno de Michelle Bachelet y el pueblo mapuche, centrándonos en el caso de la Alianza Territorial Mapuche (Pu Lof Xawun). Lo anterior nos permitirá analizar la calidad de la democracia en Chile a través de las estrategias utilizadas para dar solución al procesamiento del conflicto socio-político.

The purpose of this research is to analyze the relationship that the Chilean State and Mapuche people had during Michel Bachelet's Government, being the object of the study the Mapuche Territorial Alliance (Pu Lof Xawun). The previously mentioned, allow us to analyze the quality of the democracy in Chile through the strategies that had been used to give a solution to the prosecution of the social-political conflict.

Mapuche Pu Lof Xawun Estado chileno CIENCIAS SOCIALES CIENCIA POLÍTICA

The impact of 1.5 °C and 2.0 °C global warming on global maize production and trade

Wei Xiong Tariq Ali (2022, [Artículo])

Future Climate Scenario Data Yield Reduction Risk CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA CLIMATE CHANGE GREENHOUSE EFFECT MAIZE MITIGATION SIMULATION ACCLIMATIZATION ADAPTATION GLOBAL WARMING

Using Observed Residual Error Structure Yields the Best Estimates of Individual Growth Parameters

Marcelo Vidal Curiel Bernal EUGENIO ALBERTO ARAGON NORIEGA MIGUEL ANGEL CISNEROS MATA LAURA SANCHEZ VELASCO SYLVIA PATRICIA ADELHEID JIMENEZ ROSENBERG ALEJANDRO FRANCISCO PARES SIERRA (2021, [Artículo])

"Obtaining the best possible estimates of individual growth parameters is essential in studies of physiology, fisheries management, and conservation of natural resources since growth is a key component of population dynamics. In the present work, we use data of an endangered fish species to demonstrate the importance of selecting the right data error structure when fitting growth models in multimodel inference. The totoaba (Totoaba macdonaldi) is a fish species endemic to the Gulf of California increasingly studied in recent times due to a perceived threat of extinction. Previous works estimated individual growth using the von Bertalanffy model assuming a constant variance of length-at-age. Here, we reanalyze the same data under five different variance assumptions to fit the von Bertalanffy and Gompertz models. We found consistent significant differences between the constant and nonconstant error structure scenarios and provide an example of the consequences using the growth performance index _0 to show how using the wrong error structure can produce growth parameter values that can lead to biased conclusions. Based on these results, for totoaba and other related species, we recommend using the observed error structure to obtain the individual growth parameters."

multimodel inference, error structure, totoaba, growth performance BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA ANIMAL (ZOOLOGÍA) FISIOLOGÍA ANIMAL FISIOLOGÍA ANIMAL

Agricultural emissions reduction potential by improving technical efficiency in crop production

Arun Khatri-Chhetri Tek Sapkota sofina maharjan Paresh Shirsath (2023, [Artículo])

CONTEXT: Global and national agricultural development policies normally tend to focus more on enhancing farm productivity through technological changes than on better use of existing technologies. The role of improving technical efficiency in greenhouse gas (GHG) emissions reduction from crop production is the least explored area in the agricultural sector. But improving technical efficiency is necessary in the context of the limited availability of existing natural resources (particularly land and water) and the need for GHG emission reduction from the agriculture sector. Technical efficiency gains in the production process are linked with the amount of input used nd the cost of production that determines both economic and environmental gains from the better use of existing technologies. OBJECTIVE: To assess a relationship between technical efficiency and GHG emissions and test the hypothesis that improving technical efficiency reduces GHG emissions from crop production. METHODS: This study used input-output data collected from 10,689 rice farms and 5220 wheat farms across India to estimate technical efficiency, global warming potential, and emission intensity (GHG emissions per unit of crop production) under the existing crop production practices. The GHG emissions from rice and wheat production were estimated using the CCAFS Mitigation Options Tool (CCAFS-MOT) and the technical efficiency of production was estimated through a stochastic production frontier analysis. RESULTS AND CONCLUSIONS: Results suggest that improving technical efficiency in crop production can reduce emission intensity but not necessarily total emissions. Moreover, our analysis does not support smallholders tend to be technically less efficient and the emissions per unit of food produced by smallholders can be relatively high. Alarge proportion of smallholders have high technical efficiency, less total GHG emissions, and low emissions intensity. This study indicates the levels of technical efficiency and GHG emission are largely influenced by farming typology, i.e. choice and use of existing technologies and management practices in crop cultivation. SIGNIFICANCE: This study will help to promote existing improved technologies targeting GHG emissions reduction from the agriculture production systems.

Technical Efficiency Interventions CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA MITIGATION PRODUCTIVITY CROP PRODUCTION GREENHOUSE GAS EMISSIONS

Maize ZmBES1/BZR1-3 and-9 transcription factors negatively regulate drought tolerance in transgenic arabidopsis

Fuai Sun XUECAI ZHANG Haoqiang Yu (2022, [Artículo])

BZR1s CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA ARABIDOPSIS DNA BINDING PROTEINS PLANT PROTEIN TRANSCRIPTION FACTORS DROUGHT GENE EXPRESSION REGULATION GENETICS MAIZE METABOLISM TRANSGENIC PLANTS ABIOTIC STRESS

The Banana MaWRKY18, MaWRKY45, MaWRKY60 and MaWRKY70 Genes Encode Functional Transcription Factors and Display Differential Expression in Response to Defense Phytohormones

SERGIO GARCIA LAYNES VIRGINIA AURORA HERRERA VALENCIA Lilia Guadalupe Tamayo Torres VERONICA LIMONES BRIONES FELIPE ALONSO BARREDO POOL FRAY MARTIN BAAS ESPINOLA Ángel Gabriel Alpuche Solís CARLOS ALBERTO PUCH HAU SANTY PERAZA ECHEVERRIA (2022, [Artículo])

"WRKY transcription factors (TFs) play key roles in plant defense responses through phytohormone signaling pathways. However, their functions in tropical fruit crops, especially in banana, remain largely unknown. Several WRKY genes from the model plants rice (OsWRKY45) and Arabidopsis (AtWRKY18, AtWRKY60, AtWRKY70) have shown to be attractive TFs for engineering disease resistance. In this study, we isolated four banana cDNAs (MaWRKY18, MaWRKY45, MaWRKY60, and MaWRKY70) with homology to these rice and Arabidopsis WRKY genes. The MaWRKY cDNAs were isolated from the wild banana Musa acuminata ssp. malaccensis, which is resistant to several diseases of this crop and is a progenitor of most banana cultivars. The deduced amino acid sequences of the four MaWRKY cDNAs revealed the presence of the conserved WRKY domain of ~60 amino acids and a zinc-finger motif at the N-terminus. Based on the number of WRKY repeats and the structure of the zinc-finger motif, MaWRKY18 and MaWRKY60 belong to group II of WRKY TFs, while MaWRKY45 and MaWRKY70 are members of group III. Their corresponding proteins were located in the nuclei of onion epidermal cells and were shown to be functional TFs in yeast cells. Moreover, expression analyses revealed that the majority of these MaWRKY genes were upregulated by salicylic acid (SA) or methyl jasmonate (MeJA) phytohormones, although the expression levels were relatively higher with MeJA treatment. The fact that most of these banana WRKY genes were upregulated by SA or MeJA, which are involved in systemic acquired resistance (SAR) or induced systemic resistance (ISR), respectively, make them interesting candidates for bioengineering broad-spectrum resistance in this crop."

Banana Transcription factor WRKY Defense phytohormones Salicylic acid Methyl jasmonate SAR ISR Broad-spectrum resistance BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA GENÉTICA GENÉTICA

Survival, health-related quality of life and functionality in octogenarians with acute coronary syndrome after percutaneous coronary intervention

JULIO CESAR DAVILA VALERO (2023, [Tesis de maestría])

The primary objective of this study is to investigate the survival and its determinants in octogenarian patients who have undergone

percutaneous coronary intervention as a revascularization treatmen

1. To estimate the health-related quality of life and self-perception of health in octogenarian patients after acute coronary

syndrome and percutaneous coronary intervention as a revascularization treatment in a 15-year cohort.

2. To assess the functionality in basic and instrumental activities of daily living in octogenarian patients after acute coronary

syndrome and percutaneous coronary intervention as a revascularization treatment in a 15-year cohort.

3. To determine the incidence of complications, rehospitalizations, major cardiovascular adverse events, and mortality in octogenarian patients after an acute coronary syndrome and percutaneous coronary intervention as a

revascularization treatment in a 15-year cohort.

Especialista en Geriatría

MEDICINA Y CIENCIAS DE LA SALUD CIENCIAS MÉDICAS CIENCIAS CLÍNICAS GERIATRÍA

Cloning of the broadly effective wheat leaf rust resistance gene Lr42 transferred from Aegilops tauschii

Guifang Lin Hui Chen Bin Tian Sunish Sehgal Jingzhong Xie Philomin Juliana Narinder Singh Sandesh Kumar Shrestha Ravi Singh Harold Trick Jesse Poland Robert Bowden guihua bai bikram gill (2022, [Artículo])

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA ALLELES CLONES GENE EXPRESSION GRASSES MUTATION RUSTS WHEAT BASIDIOMYCOTA DISEASE RESISTANCE GENETICS MOLECULAR CLONING PLANT BREEDING PLANT DISEASES