Family Reminiscing Style: Parent Gender and Emotional Focus in Relation to Child Well-Being

Family reminiscing is a critical part of family interaction related to child outcome. In this study, we extended previous research by examining both mothers and fathers, in two-parent racially diverse middle-class families, reminiscing with their 9- to 12-year-old children about both the facts and the emotional aspects of shared positive and negative events. Mothers were more elaborative than fathers, and both mothers and fathers elaborated and evaluated more about the facts of positive than negative events, but there were no differences in parental reminiscing about the emotional aspects of these events. Fathers showed a more consistent reminiscing style across event and information type, whereas mothers seem to show a more nuanced style differentiated by topic. Most interesting, maternal elaborations and evaluations about the facts of negative events were related to higher child well-being, whereas paternal elaborations and evaluations about the emotional aspects of both positive and negative events were related to lower child well-being. Implications for the gendered nature of reminiscing are discussed

Diseño urbano inseguro y su relación con la oportunidad del delito. Caso: Jr. Virú en el distrito del Rímac, 2022

El Perú es un país bastamente afectado por la inseguridad ciudadana. En Lima, la problemática se manifiesta a través de robos callejeros; por lo que, el propósito de esta investigación es determinar cómo las zonas urbanas inseguras pueden generar una oportunidad para cometer actos delictivos en el Jr. Viru del distrito del Rímac, Lima. La metodología para la investigación fue de diseño no experimental, correlacional y cuantitativo. El tipo de muestra se basó en un censo utilizando 33 áreas urbanas del Jr. Viru. La técnica utilizada fue una encuesta y el instrumento fue un cuestionario y ficha de datos. En cuanto a los instrumentos, el valor de la variable zona urbana fue de 0,867, mientras que la variable hechos delictivos fue de 0,810. Los resultados evidenciaron variabilidad en cuanto a las dimensiones en bajos niveles de empleo e insuficiente estado de conservación. Se concluye que las áreas urbanas inseguras aumentan significativamente la oportunidad de cometer actos delictivos (R=0,968, p < 0,05). Por último, se propone un trabajo a futuro a niveles institucional y académico a través de los tres objetivos específicos: la trama urbana y la oportunidad del delito; los bajos niveles de ocupación y la oportunidad del delito; y la ausencia de alumbrado público y la oportunidad del delito

Adaptación de la escala de soledad este I en universitarios de Ate, 2023

La presente investigación tuvo como objetivo determinar las propiedades psicométricas de la Adaptación de la Escala de Soledad ESTE I en universitarios. De tipo psicométrico, de diseño no experimental, la muestra estuvo conformada por 500 estudiantes universitarios del distrito de Ate y el instrumento aplicado fue la Escala de soledad Este I. Se obtuvo como resultados la validez de contenido superiores a 0.80 a través de la V. Aiken determinada por el criterio de expertos, respecto a los ítems se muestran índices adecuados de comunalidades e índices de homogeneidad corregida, se tuvo un análisis factorial confirmatorio teniendo como índices: CFI= 0.894; TLI= 0.884; SRMR= 0.06; RMSEA= 0.07, y p<.000. Presenta una confiabilidad de 0.91 que fue realizado a través del Alfa lo que determina que es válido. Concluyendo que la escala de soledad ESTE I es apropiada y apta para ser usada en estudiantes universitarios peruanos del distrito de Ate

Product-form in G-networks

The introduction of the class of queueing networks called G-networks by Gelenbe has been a breakthrough in the field of stochastic modeling since it has largely expanded the class of models which are analytically or numerically tractable. From a theoretical point of view, the introduction of the G-networks has lead to very important considerations: first, a product-form queueing network may have non-linear traffic equations; secondly, we can have a product-form equilibrium distribution even if the customer routing is defined in such a way that more than two queues can change their states at the same time epoch. In this work, we review some of the classes of product-forms introduced for the analysis of the G-networks with special attention to these two aspects. We propose a methodology that, coherently with the product-form result, allows for a modular analysis of the G-queues to derive the equilibrium distribution of the network

Efficient Computation of Renaming Functions for ρ-reversible Discrete and Continuous Time Markov Chains

With the introduction of ρ-reversibility, the basic notion of reversible Markov chain has been relaxed by allowing a wider range of scenarios. Specifically, the reversibility properties are not just sought on the chain itself, but also on all the possible topology-preserving renamings of its state space. Such renamings, called Renaming Functions, exhibit many interesting properties which can be exploited in different contexts. Unfortunately, finding a renaming function for a Markov chain is a very computationally intensive task. Using a naive approach it could require to check for all the possible state space permutations, which is unfeasible for all but the most trivial chains. As a matter of fact, we prove that the corresponding decision problem is polynomially equivalent to Graph Isomorphism. Nevertheless, we introduce an algorithm that, exploiting some necessary conditions for ρ-reversibility, is able to efficiently prune the search space and then verify the remaining renaming candidates. The correctness of the method is theoretically demonstrated and its practical effectiveness is shown over a significant set of discrete and continuous ρ-reversible Markov chains

Field applications of the second-generation Environmental Sample Processor (ESP) for remote detection of harmful algae: 2006-2007

We assess the application of the second-generation Environmental Sample Processor (ESP) for the detection of harmful algal bloom (HAB) species in field and laboratory settings using two molecular probe techniques: a sandwich hybridization assay (SHA) and fluorescent in situ hybridization (FISH). During spring 2006, the first time this new instrument was deployed, the ESP successfully automated application of DNA probe arrays for various HAB species and other planktonic taxa, but non-specific background binding on the SHA probe array support made results interpretation problematic. Following 2006, the DNA array support membrane that we were using was replaced with a different membrane, and the SHA chemistry was adjusted. The sensitivity and dynamic range of these modifications were assessed using 96-well plate and ESP array SHA formats for several HAB species found commonly in Monterey Bay over a range of concentrations; responses were significantly correlated (p < 0.01). Modified arrays were deployed in 2007. Compared to 2006, probe arrays showed improved signal:noise, and remote detection of various HAB species was demonstrated. We confirmed that the ESP and affiliated assays can detect HAB populations at levels below those posing human health concerns, and results can be related to prevailing environmental conditions in near real-time

Correlations among Fertility Components Can Maintain Mixed Mating in Plants

Classical models studying the evolution of self-fertilization in plants conclude that only complete selfing and complete outcrossing are evolutionarily stable. In contrast with this prediction, 42% of seed-plant species are reported to have rates of self-fertilization between 0.2 and 0.8. We propose that many previous models fail to predict intermediate selfing rates because they do not allow for functional relationships among three components of reproductive fitness: self-fertilized ovules, outcrossed ovules, and ovules sired by successful pollen export. Because the optimal design for fertility components may differ, conflicts among the alternative pathways to fitness are possible, and the greatest fertility may be achieved with some self-fertilization. Here we develop and analyze a model to predict optimal selfing rates that includes a range of possible relationships among the three components of reproductive fitness, as well as the effects of evolving inbreeding depression caused by deleterious mutations and of selection on total seed number. We demonstrate that intermediate selfing is optimal for a wide variety of relationships among fitness components and that inbreeding depression is not a good predictor of selfing-rate evolution. Functional relationships subsume the myriad effects of individual plant traits and thus offer a more general and simpler perspective on mating system evolution

Assemblages from marginal apaces: The results of the excavations in Mala (Nova) Pećina near Muć and the Neolithic of Dalmatinska Zagora

Mala (Nova) Pećina cave is located in Croatia, in the Dalmatian Hinterland (Dalmatinska Zagora), a mountainous region which is the contact zone between the eastern Adriatic coast and the interior. The excavations in Mala Pećina uncovered an Early and Late Neolithic cave site that might be key for a better understanding of the relationship between the coastal groups and the communities of the western Balkan interior. This paper aims to present the finds and contextual data from the 2016 excavations and the consequent 2017 study season. It presents an account of the pottery and lithic assemblages along with the zooarchaeological and archaeobotanical data from the cave. The preliminary evidence suggests that the cave was not used as a long term dwelling but rather as a temporary shelter, either for groups that were moving through the mountains or for groups that visited the cave for short term activities. The excavations have also shown a possible distinction between the use of the cave in the Early Neolithic, when people dwelled there and possibly engaged in ritual activities, and the Late Neolithic, when it was mostly used by shepherds. Mala Pećina is therefore particularly important as it offers the potential to better understand the interactions between the coast and the hinterland during the Neolithic. Key words: Adriatic Neolithic, Cave Archaeology, Impressed Ware culture, Hvar culture, interaction between coast and hinterlan

Assemblages from marginal apaces: The results of the excavations in Mala (Nova) Pećina near Muć and the Neolithic of Dalmatinska Zagora

Mala (Nova) Pećina cave is located in Croatia, in the Dalmatian Hinterland (Dalmatinska Zagora), a mountainous region which is the contact zone between the eastern Adriatic coast and the interior. The excavations in Mala Pećina uncovered an Early and Late Neolithic cave site that might be key for a better understanding of the relationship between the coastal groups and the communities of the western Balkan interior. This paper aims to present the finds and contextual data from the 2016 excavations and the consequent 2017 study season. It presents an account of the pottery and lithic assemblages along with the zooarchaeological and archaeobotanical data from the cave. The preliminary evidence suggests that the cave was not used as a long term dwelling but rather as a temporary shelter, either for groups that were moving through the mountains or for groups that visited the cave for short term activities. The excavations have also shown a possible distinction between the use of the cave in the Early Neolithic, when people dwelled there and possibly engaged in ritual activities, and the Late Neolithic, when it was mostly used by shepherds. Mala Pećina is therefore particularly important as it offers the potential to better understand the interactions between the coast and the hinterland during the Neolithic. Key words: Adriatic Neolithic, Cave Archaeology, Impressed Ware culture, Hvar culture, interaction between coast and hinterlan