Search results for "Liste"
showing 10 items of 632 documents
Evidence of autoinduction heterogeneity via expression of the agr system of listeria monocytogenes at the single-cell level
2011
ABSTRACT To investigate if the primary function of the Agr system of Listeria monocytogenes is to monitor cell density, we followed Agr expression in batch cultures, in which the autoinducer concentration was uniform, and in biofilms. Expression was heterogeneous, suggesting that the primary function of Agr is not to monitor population density.
Changes in gene expression during adaptation of Listeria monocytogenes to the soil environment
2011
project SEST 009; International audience; Listeria monocytogenes is a ubiquitous opportunistic pathogen responsible for listeriosis. In order to study the processes underlying its ability to adapt to the soil environment, whole-genome arrays were used to analyse transcriptome modifications 15 minutes, 30 minutes and 18 h after inoculation of L. monocytogenes EGD-e in soil extracts. Growth was observed within the first day of incubation and large numbers were still detected in soil extract and soil microcosms one year after the start of the experiment. Major transcriptional reprofiling was observed. Nutrient acquisition mechanisms (phosphoenolpyruvate-dependent phosphotransferase systems and…
Listeria monocytogenes izplatība auksti kūpinātās zivīs derīguma termiņa ietvaros
2017
Maģistra darba praktiskā daļa izstrādāta Pārtikas drošības, dzīvnieku veselības un vides zinātniskajā institūtā „BIOR”. Darba mērķis bija novērtēt Listeria monocytogenes izplatību auksti kūpinātu (a/k) zivju produktos to derīguma termiņa ietvaros¬. Lai izvērtētu risku, kāds varētu rasties lietojot šos pārtikas produktus, tika noteikta L. monocytogenes klātbūtne un skaits (KVV/g). Darba gaitā tika iegādāti 37 dažādi a/k zivju produkti, no katra zivju produkta pērkot divus iepakojumus, trīs dažādās partijās, atkārtojumu veikšanai. No pārbaudītajiem 222 paraugiem maksimāli pieļaujamo robežvērtību (100 KVV/g) pārsniedza viens paraugs, savukārt L. monocytogenes izplatība a/k vakuumētās zivīs bij…
Listeria monocytogenes izplatība auksti kūpinātās vakuumā iepakotās zivīs un uzglabāšanas temperatūras ietekme derīguma termiņa ietvaros
2015
Listerioze tiek uzskatīta par jaunu slimību un par to pirmo reizi veica pētījumus 20. gs pirmajā pusē. Pēc Latvijas slimību un kontroles centra sniegtās informācijas, listerioze ir reta slimība, jo Eiropā uz miljons iedzīvotājiem gadā tiek reģistrēti vidēji 2 - 7 saslimšanas gadījumi. Kā būtisks faktors jāmin tas, ka ne visās valstīs tiek veikta saslimšanas gadījumu reģistrācija. Visplašāk listeriozes mikrobioloģisko diagnostiku veic Francijā, kur notiek plaši izmeklējumi gan pārtikas produktiem, gan klīniskajiem materiāliem. Listeria monocytogenes ģints baktērijas ir bieži sastopamas apkārtējā vidē, ūdenī, augsnē, veģetācijā un dzīvnieku izkārnījumos. Grampozitīvā baktērija Listeria monocy…
The psychology of streaming : exploring music listeners’ motivations to favour access over ownership
2016
Digital streaming represents the most radical development in the way we experience music since the invention of automatic playback technologies two centuries ago. From zero ownership and on-demand access to a virtually limitless library of music via a disconnected financial transaction, streaming services challenge previous conceptions of how music is defined, experienced and consumed. This paper explores streaming from a psychological perspective, and highlights a range of factors that motivate users to favour access over ownership. From removal of responsibilities of ownership to enhanced discovery, nostalgia-fulfilment to augmented emotional engagement, adoption of access-based consumpti…
Kuullun ja luetun tekstin ymmärtämisstrategiat ja -vaikeudet peruskoulun kolmannella ja yhdeksännellä luokalla
2003
Entre guerre impérialiste et lutte armée. L'humanité dans la clandestinité de la Seconde Guerre mondiale
2003
Devenu une publication illegale, des l’automne 1939, L’Humanite parait clandestinement de 1939 a 1944. Outil de propagande et de mobilisation, le journal reflete l’evolution des prises de position du PCF sur la guerre, de sa denonciation radicale a l’exaltation de l’engagement militant dans la lutte armee.
Identifying Oscillatory Hyperconnectivity and Hypoconnectivity Networks in Major Depression Using Coupled Tensor Decomposition
2021
AbstractPrevious researches demonstrate that major depression disorder (MDD) is associated with widespread network dysconnectivity, and the dynamics of functional connectivity networks are important to delineate the neural mechanisms of MDD. Cortical electroencephalography (EEG) oscillations act as coordinators to connect different brain regions, and various assemblies of oscillations can form different networks to support different cognitive tasks. Studies have demonstrated that the dysconnectivity of EEG oscillatory networks is related with MDD. In this study, we investigated the oscillatory hyperconnectivity and hypoconnectivity networks in MDD under a naturalistic and continuous stimuli…
A Single-Case, Mixed Methods Study Exploring the Role of Music Listening in Vibroacoustic Treatment
2019
Chronic pain is a widespread issue accompanied commonly by depression and anxiety. Chronic pain has been shown to alter brain processing within the emotional and reward circuits, pointing towards a possible link between pain and comorbid mood disorders. Pain relief may be achieved by alleviating depressive and anxious symptoms. Relaxation is important for pain relief and eliciting relaxation through music listening is shown to relieve pain, depression, anxiety, and discomfort among others. In addition to auditory stimuli, Vibroacoustic treatment – the tactile application of low frequency sinusoidal sound vibration, plus music listening and therapeutic interaction – has been shown to be bene…
Spontaneous Music-Evoked Autobiographical Memories in Individuals Experiencing Depression
2020
Listening to music often triggers strong memories of events from our past, which influence how we affectively experience music listening and can therefore contribute to music’s therapeutic capacity. The aim of this study was to examine the valence and content of spontaneous music-evoked autobiographical memories (MEAMs) in listeners with self-reported depression, who typically demonstrate negatively biased autobiographical memory. Eighteen depressed and 21 controls participated in a music-listening experiment where they listened to a personalized music stimulus, described their memories, and thereafter rated the valence of these memories and of their induced affect. Participants’ ratings w…