1,288 research outputs found
On an integral equation of the first kind arising in the theory of Cosserat
In this paper we study an integral equation of the first kind concerning an indirect boundary integral method for the Dirichlet problem in the theory of Cosserat continuum. Our method hinges on the theory of reducible operators and on the theory of differential
forms
Computerized Tomography Findings In Fahr's Syndrome.
We analyzed computerized tomography (CT) findings in six patients with Fahr's syndrome. They presented calcifications in basal ganglia, dentate nucleus, subcortical region and semioval center, due to alteration in calcium metabolism or due to senile relative hypoxemic state. The image pattern was not strictly related with etiology, although some differences in dystrophic senile calcifications (the only one present in semioval center and absent in subcortical region). CT is an easy exam, has maximum sensitivity and allows diagnosis, contributing to early treatment of many etiologies of Fahr's syndrome.62789-9
The use of thermography to assess the teeth temperature during resection by grinding in piglets
Effect of different stunning methods of pigs on subcutaneous veining defect and meat quality of raw ham
Trecentocinque suini pesanti sono stati sottoposti a stordimento elettrico (146 soggetti) o con CO2 (159 soggetti) per valutare l’effetto del metodo di stordimento sull’incidenza del difetto di venatura delle cosce, sul valore del pH, sul colore dei muscoli SM e BF e su alcuni parametri ematici. Nei suini sottoposti a stordimento con CO2 si è osservata una più alta percentuale di cosce con il difetto di venatura e valori più elevati di HCT, PT e PTT. I suini storditi mediante elettronarcosi hanno presentato un pH1 più basso e un colore più chiaro nel SM
Effect of lairage duration on some blood constituents and beef quality in bulls after long journey
Al fine di contribuire alla individuazione di un tempo adeguato di sosta al termine di un lungo trasporto, sono stati esaminati gli effetti di diverse durate della sosta al macello su alcuni parametri ematici e sulla qualit\ue0 della carne in bovini maschi interi sottoposti a viaggi commerciali di lunga durata. Lo studio \ue8 stato condotto su 39 vitelloni Limousine allevati nelle medesime condizioni presso un unica azienda situata nelle vicinanze di Saragoza (Spagna). Gli animali sono stati esaminati al termine di 5 viaggi commerciali dopo un tragitto di 2500 km, presso lo stabilimento di macellazione \u201cSan Giorgio\u201d di Gangi (Palermo). Il tempo di trasporto \ue8 stato pari a ore 53,6\ub110,9. Per i soggetti della prima, della terza e della quinta consegna, la durata della sosta \ue8 risultata compresa tra 24 e 36 ore, con una media pari a 31 ore (gruppo \u201cShort Lairage\u201d), mentre nella terza e nella quinta consegna la sosta \ue8 stata pari, rispettivamente, a 57 e 59 ore (gruppo \u201cLong Lairage\u201d). I risultati relativi all\u2019esame emocromo-citometrico, hanno evidenziato un effetto significativo (P>0,001) della durata della sosta pre-macellazione sia sul numero dei leucociti che sulle piastrine. La durata della sosta non ha mostrato avere nessun effetto significativo su globuli rossi, emoglobina ed ematocrito anche se l\u2019analisi della varianza per misure ripetute ha mostrato che, indipendentemente dalla durata della sosta, l\u2019ematocrito \ue8 variato significativamente dal momento dello scarico a quello della macellazione, aumentando durante tale periodo. L\u2019analisi statistica effettuata sui parametri ematochimici ha evidenziato un effetto significativo (P>0,05) della durata della sosta solo sull\u2019enzima CK e sul cortisolo. L\u2019enzima CK ha mostrato un incremento nel gruppo \u201cShort Lairage\u201d (33,2% vs 14,3%) mentre il Cortisolo ha mostrato una diminuzione nel gruppo \u201cLong Lairage\u201d (36,3% vs 3,8%). La durata della sosta non ha influenzato significativamente (P>0,05) l\u2019incidenza di lesioni lievi e gravi registrate sulle carcasse. Per quanto concerne la qualit\ue0 della carne, la durata della sosta ha influenzato significativamente il pHu, risultato pi\uf9 elevato (P>0,01) nel muscolo dei soggetti del gruppo \u201cLong Lairage\u201d; la luminosit\ue0 a 24h post mortem \ue8 risultata significativamente pi\uf9 elevata (P>0,05) nei soggetti del gruppo \u201cShort Lairage\u201d rispetto a quelli del gruppo \u201cLong Lairage\u201d, mentre gli indici del rosso e del giallo sono risultati essere maggiori in quest\u2019ultimo gruppo. Il calo peso dopo cottura \ue8 risultato significativamente minore (P>0,01) nel gruppo \u201cShort Lairage\u201d, lo stesso gruppo \u201cShort Lairage\u201d ha fatto registrare carni significativamente pi\uf9 tenere (P>0,01). Dai risultati ottenuti emerge come la durata della sosta pre-macellazione dopo un trasporto di lunga durata pu\uf2 influenzare il quadro ematologico e la qualit\ue0 della carne. Nel complesso \ue8 emerso che prolungare la sosta oltre le 36 ore non provoca alcun beneficio per il benessere dell\u2019animale e rischia di peggiorare la qualit\ue0 della carne. Nel caso di trasporti cos\uec lunghi come quelli esaminati sarebbe opportuno una migliore organizzazione della logistica al fine di ridurre il tempo di attesa degli animali prima della macellazione.With the aim to contribute to determine an adequate resting time for cattle after long transportation, the effects of different lairage time on some haematic parameters and meat quality of bulls subjected to long commercial journeys were investigated. Thirty-nine Limousine bulls supplied by one farm located near to Saragoza (Spain) were examined after 5 consignments at the final destination, after a journey of 2.550 km, of the \u201cSan Giorgio\u201d abattoir (Palermo, Italy). Transport time was of 53.6 \ub1 10.9 h; lairage duration for bulls of the 1st, 3rd and 5th consignments was of 31 h on average (\u201cShort Lairage\u201d group), whereas, for those of the 2nd and 4th consignments, was of 59 and 57 h, respectively (\u201cLong Lairage\u201d group). As regards the blood cell counts, data showed a significant effect (P< 0.001) of the lairage duration on leukocyte and platelet counts. No significant effect was observed for erythrocyte count, haemoglobin and hematocrit in relation to the lairage duration, even if the repeated measure analysis of variance showed that, irrespectively to the lairage duration, the hematocrit increased significantly from the unloading to the slaughter. Haematological parameters showed a significant (P< 0.05) effect of the lairage time only on CK and Cortisol. CK enzyme showed an increase in the \u201cShort Lairage\u201d group (33.2% vs. 14.3%) whereas, Cortisol showed a decrease in the \u201cLong Lairage\u201d group (36.3% vs. 3.8%). The different lairage duration did not significantly (P> 0.05) affect the incidence of slight and severe bruises of carcass. As regard meat quality, lairage duration has significantly influenced the pHu which was higher (P< 0.01) in the muscle of the animals of the \u201cLong Lairage\u201d group, the luminosity at 24h post mortem which was significantly higher (P< 0.05) in animals of the \u201cShort Lairage\u201d group and the red and yellow indices which were higher in the \u201cLong Lairage\u201d group. \u201cShort Lairage\u201d group showed lower (P< 0.01) value of cooking loss and higher (P< 0.01) value of tenderness. Data show that pre-slaughter lairage duration after a long transport may influence the blood parameters as well as meat quality. On the whole, the increase of the lairage duration over 36 h does not determine any benefit for the animal well-being whereas it can cause a reduction of the beef quality. For so long transports, it should be better an adequate organization of the facilities in order to diminish the pre-slaughter lairage duration
Superficial heating evaluation by thermographic imaging before and after tecar therapy in six dogs submitted to a rehabilitation protocol: A pilot study
Thermography is a non-invasive diagnostic method commonly used to monitor changes of the body surface temperature potentially induced by different conditions such as fever, inflammation, trauma, or changes of tissue perfusion. Capacitive-resistive diathermy therapy (such as energy transfer capacitive and resistive\u2014Tecar) is commonly used in rehabilitation due to its diathemic effect secondary to blood circulation increase that could accelerate the healing process. The aim of this study was to monitor by thermal camera the diathermic effects induced by Tecar on the surface of the region of application. The investigation was conducted on six dogs referred for Tecar therapy to treat muscle contractures (three dogs) or osteoarthritis (three dogs). Eleven anatomical treated regions were recorded. Thermographic images and relative measurements were obtained by each region immediately before (T0), at conclusion (T1), and sixty seconds after the Tecar application (T2). Data were recorded and statistically analyzed. A comparison of temperature differences (maximum, minimum and mean values) between T0 and T1, T0 and T2, and T1 and T2 was performed by ANOVA test with Bonferroni post hoc (p 64 0.05). Statistically significant differences were detected for mean temperature between T0 (32.42 \ub1 1.57\u25e6C) and T1 (33.36 \ub1 1.17\u25e6C) (p = 0.040) and between T1 and T2 (32.83 \ub1 1.31\u25e6C) (p = 0.031). Furthermore, there was no significant difference between the mean temperature at T0 and T2, demonstrating that superficial diathermic effect exhausted within 60 s
Transcriptome Complexities Across Eukaryotes
Genomic complexity is a growing field of evolution, with case studies for
comparative evolutionary analyses in model and emerging non-model systems.
Understanding complexity and the functional components of the genome is an
untapped wealth of knowledge ripe for exploration. With the "remarkable lack of
correspondence" between genome size and complexity, there needs to be a way to
quantify complexity across organisms. In this study we use a set of complexity
metrics that allow for evaluation of changes in complexity using TranD. We
ascertain if complexity is increasing or decreasing across transcriptomes and
at what structural level, as complexity is varied. We define three metrics --
TpG, EpT, and EpG in this study to quantify the complexity of the transcriptome
that encapsulate the dynamics of alternative splicing. Here we compare
complexity metrics across 1) whole genome annotations, 2) a filtered subset of
orthologs, and 3) novel genes to elucidate the impacts of ortholog and novel
genes in transcriptome analysis. We also derive a metric from Hong et al.,
2006, Effective Exon Number (EEN), to compare the distribution of exon sizes
within transcripts against random expectations of uniform exon placement. EEN
accounts for differences in exon size, which is important because novel genes
differences in complexity for orthologs and whole transcriptome analyses are
biased towards low complexity genes with few exons and few alternative
transcripts. With our metric analyses, we are able to implement changes in
complexity across diverse lineages with greater precision and accuracy than
previous cross-species comparisons under ortholog conditioning. These analyses
represent a step forward toward whole transcriptome analysis in the emerging
field of non-model evolutionary genomics, with key insights for evolutionary
inference of complexity changes on deep timescales across the tree of life. We
suggest a means to quantify biases generated in ortholog calling and correct
complexity analysis for lineage-specific effects. With these metrics, we
directly assay the quantitative properties of newly formed lineage-specific
genes as they lower complexity in transcriptomes.Comment: 33 pages main text; 6 main figures; 25 pages of supplement; 1
supplementary table; 24 Supp Figures; 58 pages tota
Analysis of PRKAG3 gene polymorphisms in Italian autochthonous pig breeds.
The PRKAG3 gene encodes for the regulatory gamma 3 subunit of adenosine monophosfate-activated protein kinase (AMPK) protein that acts as a regulator of carbohydrate and fat metabolism. Several single nucleotide polymorphisms (SNPs) have been identified in the porcine PRKAG3 gene. Two of them (c.595A>G or p.I199V and c.599G>A or p.R200Q) have been associated with variability of meat quality and carcass traits. In this study, we investigated the frequency of the c.595A>G and c.599G>A SNPs in 372 animals of five Italian autochthonous pig breeds (Apulo-Calabrese, Casertana, Cinta Senese, Mora Romagnola and Nero Siciliano). Genomic DNA were extracted from hair roots or blood and SNPs genotyping was performed by PCR-RFLP protocols. The c.599A (p.200Q) allele was carried by only 3 Nero Siciliano pigs. All five breeds were polymorphic at the c.595A>G site. The c.595A (p.I199) allele was the less frequent in the analysed breeds with minor allele frequency ranging from 0.144 (Nero Siciliano) to 0.464 (Casertana). Based on identified allele frequencies, the c.595A>G SNP can be useful in association studies with meat, carcass and ham quality traits in the Italian local pig breeds
Recent results and new hardware developments for protein crystal growth in microactivity
Protein crystal growth experiments have been performed on 16 space shuttle missions since April, 1985. The initial experiments utilized vapor diffusion crystallization techniques similar to those used in laboratories for earth-based experiments. More recent experiments have utilized temperature induced crystallization as an alternative method for growing high quality protein crystals in microgravity. Results from both vapor diffusion and temperature induced crystallization experiments indicate that proteins grown in microgravity may be larger, display more uniform morphologies, and yield diffraction data to significantly higher resolutions than the best crystals of these proteins grown on earth
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