Search results for "Transmission"

Efficient tree construction for the multicast problem

2002

A new heuristic for the Steiner minimal tree problem is presented. The method described is based on the detection of particular sets of nodes in networks, the "hot spot" sets, which are used to obtain better approximations of the optimal solutions. An algorithm is also proposed which is capable of improving the solutions obtained by classical heuristics, by means of a stirring process of the nodes in solution trees. Classical heuristics and an enumerative method are used as comparison terms in the experimental analysis which demonstrates the capability of the heuristic discussed.

Robust and Efficient Data Gathering for Wireless Sensor Networks

2006

This paper describes a new strategy for data gathering in wireless sensor networks that takes into account the need for both energy saving, typical of such networks, and for a reasonable tradeoff between robustness and efficiency. The proposed algorithm implements an efficient strategy for retransmission of lost packets by discovering alternative routes and making clever use of multiple paths when necessary; in order to do that we build upon the general framework presented in recent works, that provided a formulation of duplicate and order insensitive aggregation functions, and by taking advantage of some intrinsic characteristics of the wireless sensor networks, we exploit implicit acknowl…

Il dibattito sul canone delle donne e le sue ricadute. Qualche annotazione

2023

Questo breve contributo torna a riflettere intorno al dibattito sul canone letterario italiano e la scrittura delle donne degli ultimi trent’anni: un fecondo conflitto delle idee che consente ormai di ripensare modi e criteri di selezione e trasmissione dei testi letterari italiani.

Trasmissione intergenerazionale dell’attaccamento in casi di donne con partner violenti: Uno studio pilota.

2015

Early negative experiences could facilitate the formation of insecure internal working models and could deteriorate symbolic competence; in adulthood, attachment style could affect partner’s choice and parenting function. Current research on attachment intergenerational transmission shows that exposure to domestic violence is associated to maladaptive outcome in children. In order to give evidence to intergenerational con- tinuity of attachment we analyzed early traumatic experiences and attachment styles in a group of five family units, who were living in a Safe House for women and chil- dren escaped from domestic violence. The Adult Attachment Interview was adminis- tered to five mothers,…

Intergenerational transmission of dysfunctional relationship: The case study of a mother daughter dyad with violent partner

2013

Seroprevalence of Norovirus Genogroup IV Antibodies among Humans, Italy, 2010–2011

2014

Antibodies specific to genogroup IV identified in human specimens suggest zoonotic exposure.

Tonometers and infectious risk: myth or reality? Efficacy of different disinfection regimens on tonometer tips

2006

Purpose To evaluate the adequacy of common disinfection regimens for disposable tonometer tips and assess if disinfection of reusable prisms or the use of disposable tips is preferable. Methods We used disposable tonometer tips, using the same material and tip diameter of standard Goldmann tonometer prism. Strains of Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus subtilis and Candida albicans were tested according to the European standard guidelines for disinfectants test. Antimicrobial effectiveness of the following disinfection practices has been assessed: dry wipe, Minuten wipes (Alpros), soaking in 3% hydrogen peroxide, 0.5% benzalkonium chloride, and 0.5% Pantasepts for 1, 5, …

Does family of origin make a difference in occupational outcomes?

2022

Disadvantages faced by parents adversely affect their children’s chances of success in the labour market. We study the influence of intergenerational transmission of parental socio-economic background on the educational attainment and occupational outcome of children, also considering gender differences. To tackle such a complex system of relationships across the outcome variables (both exogenous and endogenous), we adopt a path analysis model. In particular, we study the intergenerational transmission of disadvantage using the innovative and rich AD SILC database, which shows the evolution of occupational outcomes over eight years (measured by wages in 2011 and 2018). Our findings indicate…

High efficacy of face masks explained by characteristic regimes of airborne SARS-CoV-2 virus abundance

2021

Abstract Airborne transmission is an important transmission pathway for viruses, including SARS-CoV-2. Regions with a higher proportion of people wearing masks show better control of COVID-19, but the effectiveness of masks is still under debate due to their limited and variable efficiencies in removing respiratory particles. Here, we analyze experimental data and perform model calculations to show that this contrast can be explained by the different regimes of abundance of particles and viruses. Because of the large number of particles exhaled during human respiration and vocalization, indoor environments are usually in a particle-rich regime which means that masks cannot prevent the inhal…

Content analysis of Spanish judgements addressing the sexual transmission of HIV: 1996-2016.

2018

This study performed a content analysis of the language of the Spanish judgements addressing the sexual transmission of HIV in order to determine its possible interrelationship with HIV-related stigma. All judgements and writs dictated by Spanish penal and civil jurisdictions between 1981 and December 2016 were obtained through a systematic search of the Spanish legal databases. The inclusion criterion was that the possible transmission of HIV was judged as an individual infraction, regardless of whether other infractions were involved. Twenty judgements were selected and analysed through direct content analysis assisted by the software MAXQDA 12. The majority of the cases (85%) were brough…