Search results for "rearing"

Dispersal flight and colony development in the fungus-growing termites Pseudacanthotermes spiniger and P. militaris

2012

International audience; Pseudacanthotermes spiniger and P. militaris are two African fungus-growing termites (Termitidae, Macrotermitinae) which may become pests in disturbed agrosystems where they often live in sympatry. To study their development and their reproductive strategies, colonies of both species were reared in the laboratory for 20 and 17 years, respectively, after their foundation from reproductive pairs. The first steps of development were in great part similar in both species, although P. spiniger favoured the defence during the juvenile period, while P. militaris tended to favour a rapid development. While P. spiniger colonies did not produce alates until year 7 of colony li…

Quantity and Quality of Aquaculture Enrichments Influence Disease Epidemics and Provide Ecological Alternatives to Antibiotics

2021

Environmental heterogeneity is a central component influencing the virulence and epidemiology of infectious diseases. The number and distribution of susceptible hosts determines disease transmission opportunities, shifting the epidemiological threshold between the spread and fadeout of a disease. Similarly, the presence and diversity of other hosts, pathogens and environmental microbes, may inhibit or accelerate an epidemic. This has important applied implications in farming environments, where high numbers of susceptible hosts are maintained in conditions of minimal environmental heterogeneity. We investigated how the quantity and quality of aquaculture enrichments (few vs. many stones

Parenting in the face of serious illness: Childhood cancer survivors remember different rearing behavior than the general population

2019

Objective A child's cancer diagnosis and treatment affect the whole family. While it has been recognized that parents are an important resource for their children, little is known about the specifics of parenting in the face of serious illness. Methods We used the Recalled Parental Rearing Behavior Questionnaire in a register-based cohort of adult childhood cancer survivors (CCS) (N = 951) and a representative population sample of the same age range (N = 2042). The questionnaire assesses behavior of mothers and fathers with three scales (emotional warmth, rejection/punishment, and control/overprotection) by querying the (former) child. We compared the two groups using general linear models.…

Children's help seeking: the role of parenting

2008

Abstract Ninety-nine families with a school-age child participated in this study, aimed at analysing the relationship between parenting and children's help seeking. The parenting data included self-reports on parents' child-rearing principles and behavioural observations during parent–child interactions. To test help seeking, the children were placed in a problem-solving situation and had the opportunity to seek help from the experimenter. For girls, higher levels of parental nurturance were linked to longer thinking times preceding help seeking and to lessened capacity to reuse previously received help. For boys, higher levels of fathers' emotional warmth were related to higher rates of ir…

Long-Term Prophylactic Antibiotic Treatment: Effects on Survival, Immunocompetence and Reproduction Success of Parasemia plantaginis (Lepidoptera: Er…

2016

Hundreds of insect species are nowadays reared under laboratory conditions. Rearing of insects always implicates the risk of diseases, among which microbial infections are the most frequent and difficult problems. Although there are effective prophylactic treatments, the side effects of applied antibiotics are not well understood. We examined the effect of prophylactic antibiotic treatment on the overwintering success of wood tiger moth (Parasemia plantaginis) larvae, and the postdiapause effect on their life-history traits. Four weeks before hibernation larvae were treated with a widely used antibiotic (fumagillin). We monitored moths' survival and life-history traits during the following …

The moderating effect of extraversion on the relation between self-reported and observed parenting

2005

Abstract The present study examined multiple measures of parenting (i.e., nurturance reported by parents themselves, child-centered behavior rated by trained observers, and child-reported parenting and family atmosphere) and their association with parents' personality trait of extraversion ( E ). The study was part of the Jyvaskyla Longitudinal Study of Personality and Social Development and it concerned 106 families with school-aged children (8–13 years of age). Data on parenting were collected from parents (54 mothers and 52 fathers) and children (48 girls and 58 boys) through questionnaires; in addition, behavioral observations were conducted to measure parent–child interaction. The resu…

Near infrared reflectance spectroscopy (NIRS) characterization of European sea bass (Dicentrarchus labrax) from different rearing systems

2009

The present study aimed to predict by NIRS the proximate chemical composition and some carcass traits of sea bass coming from 11 farms with different rearing systems (extensive, intensive in land-based basins, sea cages) and located in northern (Friuli, Veneto), central (Tuscany) and southern (Puglia and Sicily) Italy. NIRS analysis of freeze dried sea bass fillets gave fairly good predictions of slaughter weight and fillet yield (R2cv=0.48-0.55), while results for carcass yield were poor. NIRS analysis was highly predictive for the condition factor (R2cv=0.790, SECV=0.09) and for water, ether extract and gross energy showing high correlations (R2cv>0.90) with NIR spectral infor- mation and…

Vecāku stresa līmenis un priekšstati par bērnu audzināšanas pieejām

2018

Bakalaura darba mērķis bija izpētīt, kādas saistības pastāv starp vecāku stresa līmeni un viņu priekšstatiem par bērnu audzināšanas pieejām. Analizējot dažādu pētnieku atziņas par vecāku stresu un priekšstatiem par bērnu audzināšanas pieejām, tika konstatēti faktori, kas ir saistīti ar vecāku stresu. Empīriskie pierādījumi atspoguļo saikni starp partneru izraisītu stresu un disfunkcionālu vecāku lomas izpildi. Laulības konflikti un zema ģimenes attiecību kvalitāte ir saistīti ar piespiedu un stingras disciplīnas izmantošanas lielāku īpatsvaru bērnu audzināšanas pieejās. Vēl viens vecāku stresa avots, kas varētu būt īpaši būtisks, lai prognozētu audzināšanas pieejā vardarbīgu un negatīvu att…

Rodzina niepełna w przestrzeni oddziaływań wychowawczo-socjalizacyjnych

2023

On the convergent validity of two Parental Rearing Behaviour Scales: EIIBU and PBI

1999

The EMBU and PBI are two of the most used Parental Rearing Behaviour questionnaires. The literature assumes a high correlation between homonymous and assimilable factors (PBI Care and EMBU Affectional Warmth, PBI Control and EMBU Overprotection). Using a sample of 796 subjects the authors carried out the joint application of both scales in order to determine their concurrent validity. The correlation obtained between the scales barely reaches significance on average levels of correlation. The same can be deduced for the applied Multidimensional Scaling. In conclusion, the most extreme precaution is recommended when considering the homonymous scales of both questionnaires, and their joint us…