Comparison of Cognitive Performance Between Two Generations of Immigrant School-Aged Children: Child Development Change Over Time

2020 ◽  
Vol 19 (2) ◽  
pp. 120-140
Author(s):  
Sandra Figueiredo
Keyword(s):  
First Generation ◽  
Immigrant Students ◽  
Mother Tongue ◽  
School Aged Children ◽  
Equivalent Age ◽  
Primary And Secondary Education ◽  
Two Samples ◽  
Development Change ◽  
Two Generations ◽  
The Difference

The objective of this research is to comparatively analyze the performance of two generations of children (as first generation of immigrants) attending primary and secondary education in different geographical areas, evaluated in different decades but with equivalent age brackets. Two samples of 169 immigrant school populations in Portugal, with fair immigration criteria, were evaluated for the same verbal reasoning and auditory discrimination tasks in different periods (cohort 1—2001–2009 and cohort 2—2013–2017). The aim is to verify if age remains a differentiating variable of the performance and acuity, as maintained by the critical period hypothesis. That performance referring to two samples evaluated in second language decoding tasks, in different periods. Additionally, to evaluate the emergence of other factors that explain proficiency, cognitive and linguistic discrimination behaviors of two generations of immigrant students in Portugal. The results contribute to a new direction in the analysis and intervention for school groups that are highly diverse in terms of mother tongue and nationalities. The data point to a greater divergence of performance and difficulties not according only to the disparity of ages, but considering the nationality (country of origin and respective educational system). It is also clear, despite just the difference of a decade, how subjects are changing their immigration routes and their cognitive and social development.

scholarly journals Irish Lithuanian L1: Vocabulary Size and Signs of Its Attrition

2020 ◽  
pp. 116-132
Author(s):  
Eglė Vaisėtaitė
Keyword(s):  
Empirical Analysis ◽  
First Generation ◽  
Negative Impact ◽  
Mother Tongue ◽  
University Education ◽  
Vocabulary Size ◽  
Lower Education ◽  
The Difference ◽  
The Empirical Analysis ◽  
Insight Into

Sociolinguistic research shows that Lithuanians in the diaspora notice changes in their mother tongue, especially vocabulary. Therefore, there is a need to study L1 vocabulary attrition in the Lithuanian diaspora. Since one of the main directions of current emigration is Ireland, this article seeks to answer the question of whether the signs of vocabulary attrition can be observed in the language of the first generation of Lithuanian emigrants living in Ireland, and to provide some insight into what factors might influence this trend. This paper describes and analyzes the results of the vocabulary size test of 100 Lithuanians living in Ireland and the answers to the questions of a sociolinguistic survey. The survey involved adults who left Lithuania at the age of 12 or older and consider Lithuanian as their mother tongue. The data of the target group are compared with the data of Lithuanians living in Lithuania (LL) (100 respondents). The results of both groups are compared by applying the T test, and the influence of sociolinguistic factors on vocabulary is estimated by applying regression analysis.The results have revealed that the Irish Lithuanian (IL) vocabulary is smaller than that of Lithuanians living in Lithuania (in average 60,300 and 62,100 words, respectively), and this difference is statistically significant (p = 0.048). The empirical analysis has revealed that education does not affect the size of the IL vocabulary but is significant for the LL vocabulary. The difference in vocabulary size between the IL and LL groups is mainly due to the results of those with higher university education, while the results of those with lower education are very similar in the two groups. However, the IL vocabulary positively correlates with the age of the respondents at the time of the survey (p = 0.01) and the age at the time of emigration (p = 0.006). Thus, it can be assumed that the IL vocabulary continued growing while the respondents were still living in Lithuania, but after emigration their L1 vocabulary stopped increasing. Lack of communication in Lithuanian with people in Lithuania has a negative impact on the respondents’ L1 vocabulary. Considering these results, it can be argued that there are signs of vocabulary attrition in Irish Lithuanian L1.

scholarly journals Study of the petrography and tectonic settings of sills in Lavasanat district, Tehran (north of Iran)

2020 ◽  
Vol 33 (02) ◽  
pp. 286-296
Author(s):  
Mehdi Bina ◽  
Mohammad Ali Arian ◽  
Mohsen Pourkermani ◽  
Mohammad Hasan Bazoobandi ◽  
Abdollah Yazdi
Keyword(s):  
Host Rock ◽  
First Generation ◽  
Continental Margins ◽  
Upper Eocene ◽  
Two Samples ◽  
Two Generations ◽  
North Of Iran ◽  
Tectonic Settings ◽  
Geochemical Studies ◽  
Active Continental Margins

The study area is located in Lavasanat District in the northeast of Tehran in Central Alborz zone. The outcrops are mainly linked to Karaj Formation, which belongs to the upper Eocene to Oligocene periods. In the study area, there are various plutonic rocks that are identified in the form of numerous dike and sill on the ground. These sills are injected in between sedimentary layers. The rocks forming the sills include the spectrum of gabbro, gabbro diorite, diorite, monzonite, and syenite. In some areas, these rocks have undergone alterations and have traces of the saussuritization and chloritization phenomena. There are also two generations of amorphous. The first generation is fully chloritized due to alteration while the second generation is unaltered. Unlike many diorites and monzonites, which typically have hornblendes, the neutral rocks such as diorite and monzonite lack hornblendes. Hence, their magmas were dry and dehydrated. Based on the geochemical studies conducted on 17 samples (15 sill samples and 2 host rock samples) and the diagrams of the tectonic settings of rocks, the study sills are in the WIN (within plate). However, two samples of the host rock are within the range of the active continental margins.

Parental breeding age effects on descendants’ longevity interact over two generations in matrilines and patrilines

2019 ◽  
Author(s):  
Zac Wylde ◽  
Foteini Spagopoulou ◽  
Amy K Hooper ◽  
Alexei A Maklakov ◽  
Russell Bonduriansky
Keyword(s):  
Maternal Age ◽  
First Generation ◽  
Age Effects ◽  
Population Variation ◽  
Paternal Age ◽  
Interactive Effects ◽  
Competitive Environment ◽  
Larval Diet ◽  
Negative Effects ◽  
Two Generations

Individuals within populations vary enormously in mortality risk and longevity, but the causes of this variation remain poorly understood. A potentially important and phylogenetically widespread source of such variation is maternal age at breeding, which typically has negative effects on offspring longevity. Here, we show that paternal age can affect offspring longevity as strongly as maternal age does, and that breeding age effects can interact over two generations in both matrilines and patrilines. We manipulated maternal and paternal ages at breeding over two generations in the neriid fly Telostylinus angusticollis. To determine whether breeding age effects can be modulated by the environment, we also manipulated larval diet and male competitive environment in the first generation. We found separate and interactive effects of parental and grandparental ages at breeding on descendants’ mortality rate and lifespan in both matrilines and patrilines. These breeding age effects were not modulated by grandparental larval diet quality or competitive environment. Our findings suggest that variation in maternal and paternal ages at breeding could contribute substantially to intra-population variation in mortality and longevity.

Inheritance of Some Morphological Characteristics of Parental Lines in Mustard-Rape Hybrid

2020 ◽  
pp. 23-30
Keyword(s):  
First Generation ◽  
Agronomic Traits ◽  
Morphological Characteristics ◽  
Morphological Characters ◽  
Hybrid Plant ◽  
Distant Hybridization ◽  
Degree Of Dominance ◽  
Whole Plant ◽  
Row Width ◽  
The Difference

Distant hybridization is known to play an important role in expanding the gene pool of any crop. It is believed that the combination of different genomes in one nucleus, as a rule, is accompanied by the phenomenon of “genomic shock”, resulting in a variety of genetic and epigenetic changes. This provides a wealth of material for the selection of genotypes adapted to different environmental conditions. Interspecific hybrids in different combinations were obtained in the genus Brassica, however, until now, interest in distant hybridization in this genus has not died out, since such important crops as rapeseed and mustard demand an improvement of many important agronomic traits. The aim of this work was to study the degree of manifestation of morphological characters of a leaf, flower, and plant as a whole in the hybrid obtained by crossing of brown mustard of the variety Slavyanka and a collection specimen of spring rape. Seeds were sown in the spring of 2019 in a field with 30 cm row width. During the flowering period a number of morphological characters of a flower, leaf, and the whole plant were analyzed. Each parameter was evaluated with 10 plants. The degree of dominance in first-generation hybrid was calculated by the formula of Beil, Atkins (1965). The dominance coefficients were not determined in the case when the difference between the parental samples was insignificant. Differences between parental samples were determined by Student t-test. The level of heterosis was calculated according to the formula of Rasul et al (2002). In a mustard-rapeseed hybrid, the size of the leaves of the lower row was inherited by the type of rapeseed, which had larger leaves than mustard. The height of the hybrid plant was inherited by the type of mustard (hp = 1.32, Ht = 4.89%), and intermediate inheritance was observed for the length of the internodes (hp = -0.48). The size of the flower petals and sepals was inherited by the type of rapeseed, and significant heterosis was observed for the length of the pistil (Ht = 33.57%). The data obtained are of interest for understanding the interaction of genes of different genomes in the genus Brassica.

Conservation or change? Exploring trends in Modern Hebrew in light of new spoken corpora of the first two generations of speakers

2020 ◽  
Vol 54 (s41) ◽  
pp. 89-115
Author(s):  
Einat Gonen
Keyword(s):  
Early Modern ◽  
First Generation ◽  
Linguistic Features ◽  
The Feminine ◽  
Two Generations ◽  
Modern Hebrew ◽  
Small Set ◽  
Diachronic Study ◽  
The 1950S

Abstract This paper presents a diachronic study of Modern Hebrew agreement between numerals and their quantified nouns. This research is possible thanks to the discovery of two rare collections of recordings from the 1950s and 1960s, which document four generations of speakers and have become important sources of spoken Early Modern Hebrew. On the basis of these two corpora, I compare numeral agreement in the first two generations of speakers with present-day usage and analyze trends of change and conversation in Modern Hebrew. The study shows that the first generation of speakers (“Gen1”) largely acquired the gender distinction of cardinals. However, in contrast to other agreement issues that educated Gen1 speakers realized fully, numeral use showed variation and absence of agreement in a small set of cases. Moreover, some linguistic features of Gen1 Hebrew found in this study no longer characterize Present-Day Hebrew; among these features is prosodic conditioning, which led to a Gen1 tendency to use the feminine form of the numeral ‘four’ with masculine nouns more frequently than was the case with other numerals.

scholarly journals First-generation versus second-generation long-acting injectable antipsychotic drugs and time to relapse

2018 ◽  
Vol 8 (12) ◽  
pp. 333-336 ◽  
Author(s):  
James M. Stone ◽  
Simon Roux ◽  
David Taylor ◽  
Paul D. Morrison
Keyword(s):  
First Generation ◽  
Antipsychotic Drugs ◽  
Second Generation ◽  
Patient Acceptability ◽  
Inpatient Ward ◽  
Medication Discontinuation ◽  
Kaplan Meier ◽  
The Difference ◽  
Long Acting ◽  
Time To Relapse

Background: The development of long-acting injectable formulations (LAIs) of second-generation antipsychotic drugs (SGAs) has been suggested as having advantage over first-generation antipsychotic (FGA) LAIs. In this study, we investigated the hypothesis that there was a longer time to relapse in patients with schizophrenia started on SGA LAI versus FGA LAI. Methods: Patients with a diagnosis of schizophrenia or schizoaffective disorder who were started on an SGA LAI while on an inpatient ward were identified through searching of the anonymised historical medical records at the South London and Maudsley NHS Foundation Trust. Patients starting FGA LAIs matched for diagnosis, age and date of hospital admission were identified. Time to readmission, discontinuation of LAI or death were identified. Kaplan–Meier plots were generated for each group, and the difference between groups analysed using log-rank methods. Results: There were 157 patients identified in each group. There was no difference in time to readmission, medication discontinuation or death in patients on SGA LAI versus FGA LAI. Conclusions: We found no evidence of advantage in terms of maintaining response in SGA LAI versus FGA LAI. Prescriber choice should be guided by other factors such as side-effect profile, patient acceptability and price.

SEASONAL HISTORY, ADULT FLIGHT ACTIVITY, AND DAMAGE OF THE OBLIQUEBANDED LEAFROLLER, CHORISTONEURA ROSACEANA (LEPIDOPTERA: TORTRICIDAE), IN FILBERT ORCHARDS

1986 ◽  
Vol 118 (4) ◽  
pp. 351-359 ◽  
Author(s):  
M.T. AliNiazee
Keyword(s):  
First Generation ◽  
Adult Emergence ◽  
Flight Activity ◽  
Yield Reduction ◽  
Larval Feeding ◽  
Choristoneura Rosaceana ◽  
Periodic Field ◽  
Obliquebanded Leafroller ◽  
Two Generations ◽  
Seasonal History

AbstractSeasonal history, adult flight activity, and damage of the obliquebanded leafroller, Choristoneura rosaceana (Harris), on filbert were studied during a 7-year period between 1976 and 1984. Data from periodic field counts and moth catches in sex-attractant traps indicated two generations per year. The first-generation adult capture peak was generally higher than the second, except in 1978 when about an equal number of moths were trapped from both generations. A physiological time scale, using degree-days (DD), was devised for predicting emergence of obliquebanded leafroller adults. The first adults from overwintering larvae emerged at approximately 374 DD above a threshold of 10 °C starting 1 March. A total of 1172 DD were required between the first and the last adult emergence during the first generation and about 519 DD during the second generation. The obliquebanded leafroller causes both foliar and nut damage in filbert orchards of Oregon. Foliar damage was insignificant, but nut damage, caused exclusively by the first-generation larvae during June and early July, was highly destructive. Larval feeding on nuts caused staining and premature drop of infested nuts resulting in substantial yield reduction in heavily infested orchards.

scholarly journals The Use of Heap Bioleaching as a Pre-Treatment for Platinum Group Metal Leaching

2017 ◽  
Vol 262 ◽  
pp. 151-154
Author(s):  
James M. Mwase ◽  
Jochen Petersen
Keyword(s):  
Platinum Group Metal ◽  
Metal Leaching ◽  
Flotation Concentrate ◽  
Group Metal ◽  
Two Samples ◽  
Heap Bioleaching ◽  
Mineral Recovery ◽  
The Difference ◽  
Pre Treatment

Two samples, a Platreef flotation concentrate and coarse ore (<6 mm), were column bioleached at 65°C using a culture dominated by Metallosphaera hakonensis. Based on solution assays, extractions in excess of 90% Cu and Ni were achieved from the flotation concentrate, while from the coarse ore 96% Cu and 67% Ni extractions were achieved. The difference in extraction levels and leaching patterns despite identical conditions used for both samples is discussed, as is the performance of the samples during a follow-up leach step using cyanide to extract the PGMs in a separate column leach experiment. While the recovery of Pd and Au was excellent during these steps, recovery of Pt was limited to 35% after 45 days for the concentrate and 56% after 60 days for the whole ore material, primarily due to the presence of a refractory Pt mineral. Recovery from a concentrate without pre-treatment was substantially lower.

scholarly journals Petrography and zircon morphology of syntectonic granitoids rocks of Hafafit area, South Eastern Desert (Egypt).

2013 ◽  
Vol 47 (1) ◽  
pp. 438 ◽  
Author(s):  
I. Thabet ◽  
A. Kilias ◽  
A. Koroneos ◽  
S. Kamh
Keyword(s):  
First Generation ◽  
Morphological Characteristics ◽  
Crystal Form ◽  
Eastern Desert ◽  
Elongation Ratio ◽  
Crystal Length ◽  
Rock Types ◽  
Two Generations ◽  
Granitoid Rocks ◽  
Zircon Morphology

The study deals with the petrography of the granitoid rocks intruding the five (A to E) domes of Hafafit Culmination. The morphological characteristics of zircon crystals are also examined, in order to elucidate the genesis of zircon and their host Hafafit granitoids. The granitoid rocks are tonalites, granodiorites and quartz diorites, all exhibiting gneissic texture. The zircon crystals from all the rock types intruding each one of the domes are examined in detail for colour, inclusions, crystal length, crystal width, elongation ratio, crystal form and habit, degree of roundness and corrosion, and are distinguished in groups on the basis of the previous characteristics. Two generations of zircons have been recognized; the first generation with magmatic features and the second one with post magmatic features. The first generation of zircon is attributed to the subduction, magmatic and deformation events while the second generation of zircon is attributed to metamorphism.

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