I. INTRODUCTIONThe Parshall Flume, which was invented in 1920 by R. Parshall, is mostly used in wastewater and crop supply. Utilizing equations, Parshall established dimensions that fit the design, one of the advantages is the conversion of position energy to velocity energy since in other measurement structures there are minimum energy losses in this one it does not allow sedimentation. The structuring of the project is adhered to by different models that define its behavior and limit its use. This is (...) the case of an approach length of the channel entrance, which is nothing more than a primary distance for the action of the flow within the channel. Throughout history, some studies were conducted in an attempt to establish an approximate and realistic value of the length at the time of measurements, but the theories put forward were lost. Some people link this length with the narrowing of the gorge, and others suggest flow conditions before entering the flume. For the development of the project established with its respective objectives, the respective structuring was carried out: For the measurement, the points already established in the field will be taken with the help of a total station, GPS, to verify the respective measurements of the Parshall flume. For the calculations and the design, the points will be introduced in the civil 3D to be able to verify if the points taken are the correct ones and what distances they have between them, through this, we can apply different methods to be able to verify the design that has this Parshall flume. For the evaluation and layout of the gutter, if it is the case, we will carry out a layout in plan with the data already calculated in the office and we will evaluate the situation in which it is so that we can apply a possible solution so that a defect does not occur. In this report, we focus on the design and redesign of a hydraulic irrigation channel where we find a Parshall section, which has the function of measuring the flow found in that section. The measurements found in the field can be verified in the office using formulas and software to verify if the data are correct, if so we can say that it is well designed, otherwise we will look for a possible solution by doing a field study. (shrink)

La formación docente es indispensable para responder a los requerimientos de la compleja sociedad actual. De su conocimiento, iniciativa, praxis y creatividad depende el éxito o el fracaso del sujeto que aprende. Al modificar el rol del docente se transforma la actitud de los estudiantes. ¿Cómo entender la formación filosófica transdisciplinar? Este texto responde a este y otros cuestionamientos: ¿cuáles son los planteamientos pedagógicos afines a la era digital? ¿en qué medida las TIC se encuentran al servicio de una filosofía (...) educativa transdisciplinar?, ¿cómo se explica ese enfoque en la formación del docente?, ¿cuál es la función de la formación en la innovación educativa?, ¿cómo formar para la ciudadanía mundial?, ¿cuáles son las contribuciones de las nuevas ciencias para la formación educativa? El crecimiento exponencial de la ciencia y de la tecnología nos obliga a pensar en procesos formativos innovadores. En tal sentido, resulta imprescindible el estudio de estas problemáticas. (shrink)

Neurosurgery for psychiatric disorders, also sometimes referred to as psychosurgery, is rapidly evolving, with new techniques and indications being investigated actively. Many within the field have suggested that some form of guidelines or regulations are needed to help ensure that a promising field develops safely. Multiple countries have enacted specific laws regulating NPD. This article reviews NPD-specific laws drawn from North and South America, Asia and Europe, in order to identify the typical form and contents of these laws and to (...) set the groundwork for the design of an optimal regulation for the field. Key challenges for this design that are revealed by the review are how to define the scope of the law, what types of regulations are required, and how to approach international harmonization given the potential migration of researchers and patients. (shrink)

“El museo en camino” nace de la reflexión colectiva de un grupo interdiciplinar de mujeres artistas, docentes y arquitectas sobre arte, educación e infancia. El objetivo es difundir los valores artísticos, culturales y sociales del Camino de Santiago y presentar el patrimonio gallego del Museo de Pontevedra a niñas y niños de pequeñas poblaciones del camino Portugués. Para ello se diseña un recurso pedagógico, el museo portátil, acercando una experiencia museística y de experimentación plástica. Como registro y práctica final evaluativa (...) se monta una exposición didáctica. (shrink)

The Totonac homegarden is a traditionally designed agroecosystem mixing different elements, such as cultivated and wild plants, and livestock. Our objective was to understand the role and importance of homegardens as a strategy for subsistence and natural resources management. Anthropological fieldwork was carried out in Coxquihui, Veracruz, Mexico, a Totonac community. Conventional sampling using a questionnaire yielded a sample of 40 individuals, each representing a family group. Personal interviews, life stories, observations, and field transects enriched survey information. Fieldwork permitted identification (...) of four types of Totonac homegardens: backyards, cropping fields, acahuales or fallow fields, and fences or field edges. Each of these gardens yields an array of products and services important for several cultural roles and natural resource management aims. Totonacs see land as the dominant and most critical resource. A great deal of terrain is steeply sloped and soils are poor. Homegardens play a key role in a production system that minimizes these site limitations, striking a balance between resource maintenance and subsistence needs. Their functions are ecological, to foster a multistrata vegetation cover, and a continuous supply of organic matter to the soil; economic, serving as living storehouses where diverse products (food, timber, firewood, forage, animals, ceremonial supplies, medicinal products), are kept through the annual cycle; and social, performing various social roles such as growing medicinal, ritual, and edible plants, thus supporting beliefs and culture continuity. Studies like this contribute to a better understanding of Totonac culture and native ecology, and give ideas for a better land management. (shrink)

This quantitative study investigates the impact of educational programs designed to foster social entrepreneurship on the development of human and community skills. Data were collected from 150 university students in Latin America, who participated in social entrepreneurship programs during the 2022-2023 academic cycle. Through structured surveys, key competencies such as leadership, empathy, problem-solving and teamwork were assessed. The results show that educational programs that integrate social entrepreneurship have a significant impact on the development of skills that not only benefit students (...) individually, but also their communities. This study highlights the importance of practical experiences in education for social entrepreneurship. (shrink)

This study aimed to investigate the student-athletes' capability to face the academic, sport, and social challenges during the coronavirus disease 2019 (COVID-19) lockdown and to disclose novel aspects of dual careers. A 32-item online survey encompassing demographic characteristics, sport and university engagement, support and dual-career benefits, physical activity, sitting time, and the time deemed necessary to recover the previous level of performance was developed. Four hundred sixty-seven student-athletes (males: 57%, females: 43%) from 11 countries, competing in 49 different sports (individual: (...) 63.4%, team: 36.6%) at regional (17.5%), national (43.3%), and international (39.2%) levels, and enrolled at high school (21.9%) and university (78.1%) levels completed the survey. During the lockdown, the respondents decreased the time dedicated to sport and academics, although they maintained an active lifestyle. Student-athletes from countries under severe contagion were more likely to train at home, dedicate to academics, and receive support from the coach but less likely receive support from their teachers. With respect to their team sport counterparts, athletes competing in individual sports trained more and were more likely to receive support from their coaches. International athletes showed the highest training time and support from their coaches and as student-athletes. High school students received more support from their coaches and teachers, whereas university students were more likely considering dual careers useful to cope with the COVID-19 pandemic. This study substantiates the relevant role of competitive sports participation in the maintenance of active lifestyles, with student-athletes considering home training and e-learning valuable resources during the lockdown. Furthermore, their sport and academic commitments helped student-athletes cope with the emergency of the COVID-19 pandemic. (shrink)

Introducción: los accidentes son de las primeras causas de muerte a nivel mundial, por lo que la prevención de los mismos es una emergencia. Objetivo: valorar la repercusión de una intervención comunitaria en la disminución de peligros potenciales de accidentes en familias con niños de 0 a 18 meses. Métodos: se realizó un estudio cuasi experimental multietápico, con enfoques cuantitativo y cualitativo, entre enero de 2009 a junio de 2012. Se trabajó con 39 familias entre las que se produjeron nacimientos (...) en el periodo enero de 2008 a enero de 2010 de los Consultorios Médicos del Consejo Popular 26 de julio del Municipio Santo Domingo. Se efectuó una intervención por un grupo de trabajo comunitario conformado por integrantes del Círculo de interés "Prevención es Salud" y brigadistas de la Cruz Roja, liderados por la enfermera de la familia, se empleó para ello la Guía para Análisis de vulnerabilidades y capacidades de la Cruz Roja, modificada en su etapa I. Resultados: Post intervención se logró la reversión de vulnerabilidades en cuanto a capacidades, se manifestaron cambios favorables en los conocimientos y disminuyó significativamente el número de peligros potenciales en cada hogar. Conclusiones: Cuando se trabaja con familias con instrumentos sencillos y accesibles, y con el grupo de trabajo comunitario, se favorece la toma de conciencia sobre el problema en el entorno donde se generó. Introduction: accidents are one of the first causes of death worldwide, so their prevention is an urgency. Objective: assess the effect of a community intervention in the reduction of potential dangers of accidents in family with children aged from zero to 18 months. Methods: a multiage cuasi experimental study was carried out, with quantitative and qualitative approaches, from January 2009 to June 2012. The sample was taken from thirty-nine families who had children in the period ranging from January 2008 to January 2010 belonging to the family doctor´s house of the community called "26 de Julio" from Santo Domingo municipality. An intervention was carried out by a community group work composed by members of centers of interests called ¨Prevention is health¨ and members of the Red Cross led by the family nurse. It was necessary to ask a guide to analyze the vulnerabilities and capabilities of the Red Cross, modified in the first stage. Results: During the post intervention, it was possible to change the vulnerabilities in terms of capacities, favorable changes were present in the knowledge and the number of potential risks significantly decreased in each house. Conclusions: when families are approached with simple and accessible instruments, and with a community group work it is possible to make favorable changes in terms of awareness of the problem in the same place where it emerged. (shrink)

This paper employs network theory, mining data and bibliometric analysis when mapping the scientific contribution of Nobel Prize candidate; Manuel Sandoval Vallarta, the first and most renowned Mexican physicist and important figure in Latin American science. Vallarta died in 1977, and the existing literature is about his life and contributions to science but not about how those are still valuable today. This paper is the first to highlight, with mapping tools, that his contributions are relevant to the international community of (...) cosmic rays (as he was pioneer and leader), quantum mechanics and relativity. These tools delivered three findings: Identify how he built his own field of study, same as universal knowledge. Unveil that the backward and forward Vallarta citations follow a _scale-free_ network distribution. Determine social factors that benefited or affected his scientific activities—such as World War II interrupting Vallarta’s successful productivity at Massachusetts Institute of Technology. Furthermore, this study confirmed the interdisciplinary nature of the mapping studies of the scientist's contributions using scientometric tools. As a result, several interesting questions arose throughout our research, some of which were answered from the history and philosophy of science. However, others need to be analyzed by experts in the fields of Vallarta. Mapping research sends an invitation to interdisciplinary dialogue/research between experts in different areas of study to better understand the process of knowledge production both, individual and collective. (shrink)

Se presentan los resultados obtenidos en la tesis de maestría Sistema de talleres de trabajo educativo para la capacitación del profesor guía de Medicina en Nuevitas con el objetivo de demostrar el impacto a partir de su implementación en la brigada estudiantil. Se exponen las definiciones elaboradas y las contextualizaciones. Se concluye que el sistema contribuyó al adecuado desempeño del profesor guía y al desarrollo del modo de actuación de los estudiantes. La rapidez y la calidad que implicó en la (...) praxis educativa constituyó el resultado más importante en el contexto de la carrera de Medicina en la Filial. Results achieved through the master's thesis "Educational work workshops system for the Medicine degree guiding teacher training" in Nuevitas are presented, aimed at demonstrating its impact starting from its implementation on a class. Elaborate definitions and contexts are exposed. The conclusionreached through it was that the system contributed to the adequate guiding teacher's performance and to the development of students' behavior. The speed and quality it involved in educational praxis constituted the most important result in the context of the Medicine degree in La Filial town. (shrink)

The main research programs in quantum gravity tend to suggest in one way or another that most spacetime structures are not fundamental. At the same time, work in quantum foundations highlights fundamental features that are in tension with any straightforward space- time understanding. This paper aims to explore the little investigated but potentially fruitful links between these two fields.

Las teorías de la mente sostenidas por los filósofos de la época moderna han sido consideradas desde un nuevo punto de vista por la Ciencia Cognitiva contemporánea. La teoría kantiana de la actividad mental, incluyendo sus diversas facultades y los respectivos elementos de estas, ha sido estudiada como una de las propuestas más atractivas, considerando su afinidad con tópicos recientes de dicha disciplina y de la Filosofía de la Mente, tales como la modularidad de las facultades, la intencionalidad de las (...) representaciones, la estructura conceptual y, en especial, la teoría representacional de la mente. En el presente trabajo revisamos algunas propuestas contemporáneas relevantes referentes a estos tópicos y, teniendo en vista la teoría de Kant de la actividad mental, señalamos algunas dificultades que el pensamiento contemporáneo tendría que enfrentar a este respecto. The theories of mind held by modern philosophers have been considered from a new point of view by the contemporary Cognitive Science. The kantian theory of mental activity, included his several faculties and the respective elements of these, have been studied as one of the more attractive proposal, considering his affinity with recent topics in Cognitive Science and the Philosophy of Mind, such as the modularity of faculties, the intentionality of mental representation, conceptual structure, and the representational theory of the mind. In this paper we review some relevant contemporary proposals on these topics , and having in view Kant's theory about the mental, we point out some of the difficulties that contemporary thought at this respect may have to face. (shrink)

El presente trabajo tiene como objetivo determinar los tipos de actividades de reformulación conversacional que aparecen en conversaciones en adultos mayores con diferentes niveles de desempeño cognitivo: normales y trastorno cognitivo leve, a partir de una tarea de construcción de un discurso narrativo-argumentativo. Desde una perspectiva de investigación cualitativa, se obtuvo un corpus de 4 entrevistas, que fue codificado con la ayuda del software ATLAS.ti lo que permitió la generación de conceptos y el desarrollo de explicaciones a partir de los (...) datos, los que fueron contrastados con el marco teórico disponible. Los resultados indicaron que los hablantes realizaron actividades de auto-reformulación auto-iniciada, auto-reformulación iniciada por otro y hetero-reformulación derivada del auto-inicio. Las dos primeras se redujeron en los hablantes identificados con trastorno cognitivo leve, mientras que el último tipo de actividad fue el más frecuente y dominante en la conversación. Los hablantes con trastorno cognitivo leve realizaron reformulaciones que no corregían o adecuaban el discurso, por lo que no cumplieron con la finalidad de la reparación. This study aimed to determine the types of activities of conversational reformulation that occur during oral dialogues with older adults who have varying levels of cognitive performance. Study participants, who ranged between normal cognitive function and mild cognitive impairment, were given the task of constructing a narrative-argumentative dialogue. For qualitative investigation purposes, a corpus of four interviews was obtained. Each series of interviews were encoded using ATLAS.ti software which generated linked concepts and explanations from the data. Findings were then compared with the available theoretical framework. The results indicated that participants exhibited three modes of reformulation technique: self-initiated self-reformulation activities; self-reformulation started by another person; and hetero-reformulation derived from self-start. The first two were reduced in speakers exhibiting mild cognitive impairment, while the latter was the most frequent and dominant mode in the conversation. Speakers with mild cognitive impairment executed reformulations that did not correct or enhance the speech, and as such did not meet the purpose of reformulation. (shrink)

The results of the investigation were aligned with the objective of determining the influence of the program in the strengthening of social skills in university students of Medical Technology of the National University of Jaén. It is an applied, explanatory, longitudinal research, with a quantitative approach and quasi-experimental design, with pre-test and post-test in experimental and control groups. The hypothetical-deductive method was used, with a population of 289 students and 80 for the sample. The Observation Form and the Social Skills (...) Evaluation Scale were used. The results showed a good to excellent level of social skills in all the participants of the experimental group of the II and VI cycle. The means per academic cycle increased by 32 and 35.75 respectively. By dimensions according to academic cycle, the first social skills increased by 6.2 and 5.4, advanced social skills by 5.05 and 4.85, skills related to feelings by 5.45 and 5.1, alternative social skills to aggression by 3.95 and 6.7, social skills to cope with stress by 7.4 and 8.45, and finally social planning skills by 3.95 and 5.25 respectively. In conclusion, the program has a significant influence on strengthening social skills in university students, with a greater influence in the experimental group of the VI cycle (35.75 percentage points). (shrink)

The COVID-19 pandemic has driven organizations to implement various flexible work arrangements. Due to a lack of longitudinal studies, there is currently no consensus in specialized literature regarding the consequences of flexible work arrangements on employee mental health, as well any long term potential impacts. Using the Job Demand-Resource Model, this study documents consequences of the implementation of two types of flexible work arrangement: work schedule flexibility and teleworking on employee mental health over time, and the mediating role played by (...) work overload during the accelerated implementation of flexible work arrangements in the course of the COVID-19 pandemic. Using a longitudinal design and probabilistic sampling, 209 workers participated in this study, twice answering a flexible work arrangement and mental health questionnaire during the pandemic. Findings of this moderated-mediation suggest that work schedule flexibility generates positive effects on mental health over time due to decreased work overload, but only for employees not working from home. These results offer theoretical and practical implications applicable to organizations considering implementation of flexible work arrangements, particularly with regard to how these flexible practices could support a balance between demand and resources, their impact on work overload, and employee mental health over time. (shrink)

We conducted a scoping review to ascertain the landscape of ethics regulations for AD/ADRD research in Africa using Arksey and O'Malley's framework. We sourced regulations from the International Compilation of Human Research Standards. We included regulations from 14 countries published between 1997 and 2020. Provisions in the regulations applicable to research in AD/ADRD were part of broader sub-provisions for research such as with persons under legal disability. Regulations mostly required the appointment of Legally Authorised Representatives, as a major protection for (...) persons with AD/ADRD. Provisions supporting capacity assessment and advance directives were only provided in regulations from five and two countries respectively. No regulation cited the Convention on the Rights of Persons with Disabilities as a foundational instrument for its provisions. In conclusion, regulations specifically applicable to research among AD/ADRD or other cognitively impaired persons in Africa are scarce and provisions in existing regulations mostly lack specificity for practical implementation. (shrink)

Olympic combat sports are unconventional physical activity strategies to train middle-aged and older people with and without health problems. This systematic review aimed to assess the available body of published peer-reviewed articles related to the effects of Olympic combat sports interventions on health-related quality of life in adults aged 45 and older. The search was carried out in five generic databases until July 2021 and the protocol was registered in PROSPERO. The PRISMA guidelines were followed and the Downs and Black (...) checklist was used to assessed the methodological quality of the studies. After reviewing 1,151 records, only seven studies met the inclusion criteria, adding 212 participants with a mean age of 63.7 years. Six studies provided data to calculate the effect size in the Olympic combat sports groups. Three studies reported beneficial changes with a small ES for the total score of the health-related quality of life. Two studies reported a beneficial change with a small ES and strong ES for physical health. One study reported improvements with a small ES for emotional and functional well-being. In conclusion, interventions based on Olympic combat sports produce beneficial effects with a small and moderate ES on health-related quality of life in male and female aged 45 and older who are healthy participants, participants with Parkinson's disease, and participants with breast cancer.Systematic Review Registration:https://www.crd.york.ac.uk/prospero/, PROSPERO: CRD42021244161. (shrink)

We present and discuss various formalizations of Modal Logics in Logical Frameworks based on Type Theories. We consider both Hilbert- and Natural Deduction-style proof systems for representing both truth (local) and validity (global) consequence relations for various Modal Logics. We introduce several techniques for encoding the structural peculiarities of necessitation rules, in the typed -calculus metalanguage of the Logical Frameworks. These formalizations yield readily proof-editors for Modal Logics when implemented in Proof Development Environments, such as Coq or LEGO.

Business Ethics, the Environment &Responsibility, EarlyView.

The differences in clinical bioethics between the Mediterranean and Latin American cultures have not been analyzed. The objective of the study is to compare the ethical conflicts that internists in Spain, Mexico and Argentina have. Cross-sectional observational study through a survey directed at internists from Spain, Argentina and Mexico. The survey was administered to affiliated members of the National Societies of Internal Medicine across three countries via an online platform. 762 internists participated, 261 from Spain, 154 from Argentina and 347 (...) from Mexico. The main ethical conflicts that internists in Spain, Argentina and Mexico have are related (in order) to the end of life, to the clinical relationship and to the patient’s autonomy. Withholding and withdrawing life-sustaining treatment is the most frequent conflict in Spain and Argentina and the second in Mexico. Internists from Spain and Argentina identify very similar ethical conflicts. Furthermore, they consider them more frequent and difficult than in Mexico. In Argentina they are less satisfied with the way they are resolved. To explain these differences, socio-cultural factors are postulated, among others: paternalism, individualism, masculinity, organization of the health system, formal training in bioethics and assessment of death. (shrink)

Subjective well-being is a broad category of phenomena that includes people’s emotional responses, domain satisfactions, and global judgments of life satisfaction. This research investigates how schoolchildren’s subjective well-being is affected by the different types of technology use, in personal contexts, and, concurrently, whether these effects are different when the use of technology is problematic. The central hypotheses are as follows: the use of the Internet affects the subjective well-being of schoolchildren negatively only when this use is problematic and the effect (...) on subjective well-being is different according to the type of Internet use. To respond to the objectives of the research, a survey was applied to 15-year-old adolescents, distributed in 330 public schools, beneficiaries of a government program for the delivery of personal computers and Internet for a year. The different uses of the Internet were measured using frequency scales by type of activity. Problematic use scale measured the perception of negative consequences of the intensity of Internet use on a daily basis. Subjective well-being was measured by the Personal Well-Being Index-School Children. Subsequently, for analytical purposes, three simple mediation models were created, whose dependent variable was PWI-SC, while its independent variables were Internet use scales differentiated by purpose and problematic use as a mediating variable, as well as attributes of the subjects and their social environment, which were incorporated as control variables. The main results show that only if Internet use is expressed as problematic does it negatively affect subjective well-being. On the contrary, when the use of the Internet is not problematic, the effect is positive and even greater than the simple effect between these two variables. This finding is relevant, since it allows us to provide evidence that suggests that, when studying the effect that the intensity of the Internet, firstly, one must consider the mediating effect exerted by the network’s problematic use and, secondly, that not all types of use have the same impact. Therefore, it is useful to enrich the discussion on subjective well-being and social integration of schoolchildren in the digital age. (shrink)

Bullying is a phenomenon that affects children and adolescents worldwide, and it has major consequences for all participants involved in these situations. In Chile, researchers have validated several instruments used to investigate aggression between peers and school violence, but there is a lack of validation of instruments to investigate bullying. The purpose of this study was to provide evidence of the validity and reliability of the Olweus Bully/Victim Questionnaire—Revised version in the Chilean context. The participants were 2,775 students from schools (...) of low, medium, and high socioeconomic status. OBVQ-R is a self-report questionnaire with 42 items, which has been used in different countries, and has adequate psychometric properties to assess the prevalence of victimization and aggression and various forms of bullying worldwide. Results confirmed the two-factor structure of the OBVQ-R and good reliability. These dimensions seem to be correlated. Comparison between OBVQ-R with the School Violence between Peers Questionnaire and the Internet Experiences Questionnaire showed some degree of agreement. The Item Response Theory analysis showed that the item about verbal bullying, in both subscales, had the lowest-severity parameters, meaning that these forms of bullying were the most prevalent. The higher-severity parameter in the victimization scale was the cyberbullying item, and the sexual bullying item showed higher severity in the perpetration subscale. The differential item functioning analysis by gender showed a trend in which boys responded with lower-severity parameters than girls. In the victimization scale, the exception was the item about spreading rumors, and in the perpetration subscale, it was the item about racial bullying. We have provided evidence of the validation of OBVQ-R among school-age children and adolescents in Chile. This study is part of a trial registered at ClinicalTrials.gov, number NCT02898324. (shrink)

The objective of this study was to isolate endophytic bacteria from roots of Brachiaria humidicola cv. humidicola (Rendle) Schweick and to relate their presence to pH, organic matter and phosphorus contents of the soil of cattle farms located in the municipality of San Benito Abad. Soil sampling was carried out with roots of B. humicola for the isolation and counting of the population density of endophytic bacteria and soil samples were also collected for the determination of pH, organic matter and (...) phosphorus parameters. The results found indicate that there is an amount of endophytic bacteria in roots of B. humidicola when the soil contains optimum pH values of (6.1 ± 6.98); low to moderate phosphorus content (10.8 ± 16.28 mg/kg) and low to moderate organic matter content (1.7 ± 2.31%). The presence of endophytic bacteria was observed in a range of 3.0 ± 8.0 X 106 CFU/g of roots. There is a worldwide need to establish a relationship between endophytic bacteria and soil physical-chemical quality indicator parameters to predict a change in functional diversity under physical, chemical and biological conditions of the soil ecosystem. (shrink)

Understanding the interaction of Cd with plants, as well as the search for alternatives to minimize its effects, has caught the interest of the scientific community, due to the accelerated growth of contamination with this metal and its high toxicity. The aim of the present study was to evaluate the ability of two rhizospheric bacterial strains LC7504001.1 Burkholderia cepacia (C65RLIM) and FJ972527.1 Pseudomonas aeruginosa (C85RLIM) to three concentrations of cadmium (100, 300 and 500 mg/L) and to compare the growth behaviour (...) with increasing temperature from 32 to 45°C. The results show different growth patterns for each strain tested against exposure to the three cadmium concentrations and the four temperatures tested. The Pseudomonas aeruginosa strain (C85RLIM) had the best adaptive behaviour to the three cadmium concentrations tested, and also showed stability when subjected to 500 mg/L CdCl2 and temperatures between 40 and 45°C. The results predict the possible behaviour of rhizospheric bacteria in the face of global warming and heavy metal remediation processes. (shrink)

Cadmium (Cd) is one of the most toxic heavy metals. Its high mobility and bioaccumulation power in plant, animal and human tissues differentiate it from the rest of its group and motivate the interest of scientists to know its effects and interaction with plants and the environment. The aim of the present study was to isolate and evaluate the in vitro tolerance of rhizospheric bacteria associated with rice plants in cadmium-contaminated environments and to evaluate them in vitro capacity to tolerate (...) cadmium and the production of compounds related to their ability to remediate and promote plant growth. Rhizospheric bacteria were isolated, tolerance was found up to 500 mg/L CdCl2 and the ability to produce siderophore and solubilize phosphate at this concentration of cadmium was observed in vitro. The morphospecies with the ability to tolerate cadmium up to 500 mg/L found corresponds to Pseudomonas aeruginosa GU270941.1, a species of rhizospheric bacteria that shows an alternative to reduce cadmium uptake by rice plants and promote the growth of these plants for their adaptation and tolerance to this metal. (shrink)

The objective of this study was to correlate the presence of arsenic in roots and stems of Brachiaria humidicola cv. humidicola (Rendle) Schweick grown in cattle areas of the San Jorge subregion and the population density of endophytic bacteria in roots and foliage with the presence of this metal. Samples of soil, roots and stems of B. humicola grass were collected and characterized for arsenic concentration in roots and foliage and the presence of endophytic bacteria (CFU/g tissue). The results show (...) the presence of arsenic concentrations in roots and stems above the values established at national and international level. Likewise, the presence of endophytic bacteria was found in the roots and foliage of B. humidicola, which may be contributing to the remediation and reduction of arsenic concentration from the roots to the foliage. This is the first study correlating the presence of arsenic and endophytic bacteria on cattle farms with B. humicola and the possible role of these bacteria in contributing to bioremediation of this metal in the soil and within the tissues of the pasture species. (shrink)

Jean-Luc MARION, De surcroît. Études sur les phénomènes saturés ; Magda KING, A Guide to Heidegger’s Being and Time ; Andreas MICHEL, Die französische Heidegger-Rezeption und ihre sprachlichen Konsequenzen ; Alfred DENKER, Historical Dictionary of Heidegger’s Philosophy ; John B. BROUGH & Lester EMBREE, The Many Faces of Time ; Daniel O. DAHLSTROM, Heidegger’s Concept of Truth ; Cristina LAFONT, Heidegger, Language, And World-Disclosure ; Eliane ESCOUBAS & Bernhard WALDENFELS, Phénoménologie française et phénoménologie allemande ; Eckard WOLZ-GOTTWALD, Transformation der Phänomenologie. (...) Zur Mystik bei Husserl und Heidegger ; Martin HEIDEGGER, Ontology – The Hermeneutics of Facticity ; Arkadiusz CHRUDZIMSKI, Die Erkenntnistheorie von Roman Ingarden ; Jocelyn BENOIST, L’apriori conceptuel. Bolzano, Husserl, Schlick ; Dennis King KEENAN, Death and Responsibility. The “Work” of Levinas ; Dan ZAHAVI, Self-awareness, Temporality, and Alterity. Central Topics in Phenomenology ; Sonya SIKKA, Forms of Transcendence. Heidegger and Medieval Mystical Theology ; Alfred DENKER, Omdat filosoferen leven is. Een archeologie van Martin Heideggers Sein und Zeit; Seán HAND, The Levinas Reader ; ; Ion MINCÃ, Informatica şi teoria cunoaşterii. O paradigmã fenomenologicã a domeniului hardware ; John van BUREN, The Young Heidegger. Rumor of the Hidden King. (shrink)