Search results for "BES"
showing 10 items of 3692 documents
Influence of diseases on the wild eel stock: The case of Albufera Lake
2009
Abstract In recent years, eel stocks in the European Union have declined dramatically. This decline has been attributed to habitat loss, over fishing, and more recently, pathogens, but little data exist on bacterial diseases of wild eels. This study reports on the bacterial and parasitic diseases affecting the wild-eel population of the Albufera Lake. Over a 3-year period, 122 eels were analysed after having been randomly chosen from those caught in the lagoon via traditional fishing procedures. This collection of individuals comprised eels at different growth stages as well as some individuals showing pathological signs, such as haemorrhagic fins, petechiae on the belly and ulcers. Microbi…
Genetic relatedness among environmental, clinical, and diseased-eel Vibrio vulnificus isolates from different geographic regions by ribotyping and ra…
1998
ABSTRACT Genetic relationships among 132 strains of Vibrio vulnificus (clinical, environmental, and diseased-eel isolates from different geographic origins, as well as seawater and shellfish isolates from the western Mediterranean coast, including reference strains) were analyzed by random amplified polymorphic DNA (RAPD) PCR. Results were validated by ribotyping. For ribotyping, DNAs were digested with Kpn I and hybridized with an oligonucleotide probe complementary to a highly conserved sequence in the 23S rRNA gene. Random amplification of DNA was performed with M13 and T3 universal primers. The comparison between ribotyping and RAPD PCR revealed an overall agreement regarding the high l…
Karyological observations on plant taxa endemic to the Balearic Islands
2007
Mitotic chromosome numbers are reported from 35 vascular plant taxa endemic to the Balearic Islands that are poorly known cytogenetically. The chromosome numbers of Chaenorhinum rodriguezii (2n = 14), Coristospermum huteri (2n = 22), Carduus ibicensis (2n = 26), Filago petro-ianii (2n = 26), Ononis crispa ssp. zschackei (2n = 30), and Ophrys bertolonii ssp. balearica (2n = 36) were determined for the first time. New chromosome numbers are reported in Pimpinella bicknellii (2n = 22), Calamintha rouyana (2n = 46), Vicia bifoliolata (2n = 14), and Teucrium asiaticum (2n = 30). A new diploid cytotype (2n = 16) was found in Ranunculus paludosus ssp. barceloi, which is restricted to populations f…
Meaning in Life Mediates Between Emotional Deregulation and Eating Disorders Psychopathology: A Research From the Meaning-Making Model of Eating Diso…
2021
Emotional dysregulation, age, gender, and obesity are transdiagnostic risk factors for the development and maintenance of eating disorders (EDs). Previous studies found that patients with ED had less meaning in life than the non-clinical population, and that meaning in life acted as a buffer in the course of ED; however, to the data, there are no studies about the mediator role of meaning in life in association between the emotional dysregulation and the ED psychopathology.Objective: To analyze the mediating role of meaning in life in the relationship between emotional dysregulation and the ED psychopathology in three samples with diverse risk factors for ED.Method: Sample 1, n = 153 underg…
Alternative options for prescribing physical activity among obese children and adolescents: brisk walking supported by an exergaming platform
2015
[EN] Background: Physical inactivity has been identified as an important public health concern for children. An increasing sedentary way of life is directly related to obesity; hence, prevention and management of childhood obesity are commonly based on lifestyle interventions wherein increasing physical activity is one of the main targets. The use of exergames can be useful in promoting physical activity, but it is necessary more research. This study analyzes the effects of an exergaming platform that involves brisk walking, on perceived exertion, self-efficacy, positive expectations and satisfaction in a sample of clinically obese children, as compared with normal weight children. Physiolo…
Hidrotermālās karbonizācijas izmantošana biomasas atkritumu pārstrādē humusvielās
2021
Darbā tiek pētīta bioatkritumu iespējama pārstrāde, izmantojot hidrotermālo karbonizāciju. Pētījuma laikā arī tiek salīdzinātas mākslīgi radītu humusvielu īpašības ar dabiskas izcelsmes humusvielām. Eksperimentu laikā tika izmantoti sadzīves atkritumu un lauksaimniecības blakusprodukti. Veicot pētījumu radās atziņa, ka mākslīgi radītu humusvielu īpašības ir ļoti līdzīgas dabiskas izcelsmes humsuvielām. Lai iegūtu tuvu līdzību, hidrotermālās karbonizācijas procesa laikā ir jānodrošina pareiza temperatūra un noteikts laiks, lai process būtu pietiekams, un lai biomasa sārmainā vidē tiktu degradēta. Darba apjoms: 37 lapupuses, 12 attēli, 3 tabulas, kā arī atsauces uz 49 literatūras avotiem.
Dabisko zālāju apsaimniekošanas un zālāju atjaunošanas pasākumu ietekme uz augsnes humusvielu īpašībām
2022
Šajā pētījumā ir noskaidrota dabisko zālāju atjaunošanas metožu (aršanas, krūmu frēzēšanas un ciršanas, velēnu noņemšanas) ietekme uz augsnes humusvielu daudzumu un īpašībām augsnē pēc atjaunošanas. Kā arī rezultāti tika salīdzināti ar kontroles paraugiem no jau iekoptiem dabiskajiem zālājiem. Pētījuma gaitā ir noskaidrota humusvielu sastāva mainība, to humifikācijas pakāpe un spēja iesaistīties ķīmiskās rekcijās augsnē. Veicot 26 paraugu analīzi no sešām zemnieku saimniecībām, tika konstatēts, ka zālāju augšņu minerālaugsnes virskārtā humusvielu sastāvā humīnskābju daudzums ir augstāks par fulvoskābju daudzumu. Humīnskābes zalāju augsnēs ir līdzīgas pēc to sastāvā, tām ir zeme reaģētspēja.…
Ārtelpas gaismas piesārņojuma novērtējums Rīgā, Vecmīlgrāvja un Sarkandaugavas pilottteritorijās
2022
Gaismas piesārņojums mūsdienās tiek uzskatīts par vienu no visstraujāk augošajiem vides piesārņojuma veidiem, kam piemīt negatīva ietekme gan uz apkārtējo vidi, gan cilvēka labklājību. Tomēr Latvijā gaismas piesārņojums joprojām ir relatīvi mazizpētīts jautājums. Bakalaura darba mērķis ir noskaidrot antropogēni radītā gaismas piesārņojuma līmeni divās Rīgas pieostas apkaimju – Vecmīlgrāvja un Sarkandaugavas – pilotteritorijās diennakts tumšajā laikā. Lai realizētu bakalaura darbā izvirzīto mērķi, tika veikti tiešie piezemes apgaismojuma mērījumi un nakts debesu spilgtuma mērījumi, kā arī gaismas piesārņojuma veidu un avotu kvalitatīva novērtēšana pilotteritorijās. Iegūtie rezultāti liecina …
Zvaigžņotā Debess: 2014/15, Ziema (226)
2014
Contents: “ZVAIGŽŅOTĀ DEBESS” FORTY YEARS AGO: J.Stradiņš. Vestige of Otto Schmidt in Latvia (abridged) ; Leonora Roze. All-Union Conference in Latvian State University (abridged) ; DEVELOPMENTS in SCIENCE: K.Schwartz. Gravitational Waves and Cosmic Inflation ; DISCOVERIES: A.Alksnis. Light Echoes from Supernova 2014J in Galaxy M82 ; A.Alksnis. Discovery of the Benešov Meteorites 20 Years after the Bolide Event ; I.Pundure. Giant Filament on the Sun Watched by NASA's SDO ; I.Pundure. MAVEN’s Mars Exploration Mission Started ; SPACE RESEARCH and EXPLORATION: R.Misa. Plasma Engines and Ad Astra Rocket Company ; LATVIAN SCIENTISTS: J.Freimanis. Reviewing My 60 Years of Life (concluded) ; KĀRLI…
Violenza bestiale. Modelli dell'umano nella poesia greca epica e drammatica
2013
Quanto è “naturale” il nesso tra violenza e umanità? Ovvero, una violenza rappresentata in termini di bestialità comporta una visione dell’umanità nella quale la violenza è relegata ai margini? Muovendo da queste domande il filo rosso che attraversa tutto il volume è il concetto di ‘antropopoiesi’: strumento euristico, concepito e discusso in campo socio-antropologico, appare qui efficace per sottolineare la dimensione di rappresentazione culturale dell’atto violento. Le situazioni narrative dell’Iliade e della tragedia nelle quali la violenza si manifesta con tratti di ferinità sono dispositivi atti a cogliere la costruzione di un modello di umanità che stabilisce comportamenti, fissa limi…