466 research outputs found
David M. Pritchard (Lyon 2020), âLâoraison funĂšbre aprĂšs Lorauxâ and Bernd Steinbock, âThe Epitaphios Logos of Pericles: Thucydidesâs Ambivalence towards the Funeral Orationâ, with Closing Remarks by Marie Durnerin, Video Recording, The Funeral Oration and Nicole Loraux: 19 February 2020: A Study Day at Le Collegium de Lyon (France): Co-convened by Stavroula Kefallonitis and David M. Pritchard.
Microburst phenomena. I - Auroral zone X-rays
Balloon observations of auroral zone bremsstrahlung X-ray microburst
Causes of Stillbirth and Time of Death in Swedish Holstein Calves Examined Post Mortem
This study was initiated due to the observation of increasing and rather high levels of stillbirths, especially in first-calving Swedish Holstein cows (10.3%, 2002). Seventy-six Swedish Holstein calves born to heifers at 41 different farms were post mortem examined in order to investigate possible reasons for stillbirth and at what time in relation to full-term gestation they had occurred. The definition of a stillborn calf was dead at birth or within 24 h after birth after at least 260 days of gestation. Eight calves were considered as having died already in uterus. Slightly less than half of the examined calves (46.1%) were classified as having died due to a difficult calving. Four calves (5.3%) had different kinds of malformations (heart defects, enlarged thymus, urine bladder defect). Approximately one third of the calves (31.6%) were clinically normal at full-term with no signs of malformation and born with no indication of difficulties at parturition or any other reason that could explain the stillbirth. The numbers of male and female calves were rather equally distributed within the groups. A wide variation in post mortem weights was seen in all groups, although a number of the calves in the group of clinically normal calves with unexplained reason of death were rather small and, compared with e.g. those calves categorised as having died due to a difficult calving, their average birth weight was 6 kg lower (39.9 ± 1.7 kg vs. 45.9 ± 1.5 kg, p †0.01). It was concluded that the cause of stillbirth with a non-infectious aetiology is likely to be multifactorial and difficult calving may explain only about half of the stillbirths. As much as one third of the calves seemed clinically normal with no obvious reason for death. This is a target group of calves that warrants a more thorough investigation in further studies
Quasiperiodic Patterns in Boundary-Modulated Excitable Waves
We investigate the impact of the domain shape on wave propagation in
excitable media. Channelled domains with sinusoidal boundaries are considered.
Trains of fronts generated periodically at an extreme of the channel are found
to adopt a quasiperiodic spatial configuration stroboscopically frozen in time.
The phenomenon is studied in a model for the photo-sensitive
Belousov-Zabotinsky reaction, but we give a theoretical derivation of the
spatial return maps prescribing the height and position of the successive
fronts that is valid for arbitrary excitable reaction-diffusion systems.Comment: 4 pages (figures included
Probing the size of proteins with glass nanopores
Single molecule studies using nanopores have gained attention due to the ability to sense single molecules in aqueous solution without the need to label them. In this study, short DNA molecules and proteins were detected with glass nanopores, whose sensitivity was enhanced by electron reshaping which decreased the nanopore diameter and created geometries with a reduced sensing length. Further, proteins having molecular weights (MW) ranging from 12 kDa to 480 kDa were detected, which showed that their corresponding current peak amplitude changes according to their MW. In the case of the 12 kDa ComEA protein, its DNA-binding properties to an 800 bp long DNA molecule was investigated. Moreover, the influence of the pH on the charge of the protein was demonstrated by showing a change in the translocation direction. This work emphasizes the wide spectrum of detectable molecules using nanopores from glass nanocapillaries, which stand out because of their inexpensive, lithography-free, and rapid manufacturing proces
Quench behavior of Zircaloy fuel rod cladding tubes. Small-scale experiments and modeling of the quench phenomena
Integrated guide for public procurement and private contracts of collective catering system and SDGs
Surveys (2008-2018) carried out by the Local Health Agency of Trieste (ASUITS) in local collective catering (CC) services of schools, hospitals, nursing homes, and workplaces (25.000 daily meals) have shown some non - adherence to healthier food choices, food standards, procedures and green and social procurement as recommended by the WHO, FAO, UE, Ministry of Health and of Environment.
The purpose of this project is to support local public and private organizations in transforming the national and regional catering services food standards related to health, nutrition, environment and social criteria into food procurement and food contracts specifications. This has been done by compiling the major obstacles to improved standards observed during surveys, and by sharing critical and relevant examples with major public contractors across local, regional and national level.
The guidelines (GL) for public procurement of CC consist of five chapters: the elaboration of specifications; a response module to present the offer of services; selection and award criteria, an evaluation system of offers, and the technical specifications attached. Technical information fixes the constituent elements of the service in order to have similar and directly comparable offers. GL cover both the purchasing of food and the contracting of catering services. In this way public or private institutions are able to prepare tender documents suitable to respond to health, economic needs and Sustainable Development Goals (SDGs).
The development of the GL has increased the awareness and real potential that local organizations have in enhancing the strategic use of purchasers to boost food qualification, jobs, growth and investment. As well as to create a more innovative economy, to be resource and energy efficient, and to be socially-inclusive.
To meet population nutrient intake goals and SDGs it is necessary to increase co-operation and the sharing of the objectives of âHealth in All Policiesâ
Controlling domain patterns far from equilibrium
A high degree of control over the structure and dynamics of domain patterns
in nonequilibrium systems can be achieved by applying nonuniform external
fields near parity breaking front bifurcations. An external field with a linear
spatial profile stabilizes a propagating front at a fixed position or induces
oscillations with frequency that scales like the square root of the field
gradient. Nonmonotonic profiles produce a variety of patterns with controllable
wavelengths, domain sizes, and frequencies and phases of oscillations.Comment: Published version, 4 pages, RevTeX. More at
http://t7.lanl.gov/People/Aric
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