A simple nonlinear model for estimating obturator foramen area in young bovines

Pares-Casanova, Pere M. The Korean Society of Veterinary Science 2013 大韓獸醫學會誌 Vol.53 No.2

The aim of this study was to produce a simple and inexpensive technique for estimating the obturator foramen area (OFA) from young calves based on the hypothesis that OFA can be extrapolated from simple linear measurements. Three linear measurements - dorsoventral height, craneocaudal width and total perimeter of obturator foramen - were obtained from 55 bovine hemicoxae. Different algorithms for determining OFA were then produced with a regression analysis (curve fitting) and statistical analysis software. The most simple equation was OFA ($mm^2$) = [3,150.538 + ($36.111^*CW$)] - [147,856.033/DH] (where CW = craneocaudal width and DH = dorsoventral height, both in mm), representing a good nonlinear model with a standard deviation of error for the estimate of 232.44 and a coefficient of multiple determination of 0.846. This formula may be helpful as a repeatable and easily performed estimation of the obturator foramen area in young bovines. The area of the obturator foramen magnum can thus be estimated using this regression formula.

Selecting Investments in Start-ups: an OWA-based Methodology

Montserrat Casanovas,Jordi Pla 동아시아경상학회 2015 The East Asian Journal of Business Economics Vol.3 No.2

Investment process on startup companies faces several difficulties based on the characteristics of this type of companies, such as lack of historical data, current operating losses and absence of comparable companies. In this paper we focus in a new methodology based on ordered weighted averaging (OWA) operators. OWA operators are useful instruments that enable the aggregation of information; in other words, from a data set we are able to obtain a single representative value of that set. The investment methodology presented consists on the application of OWA operators to the targeted startup companies based on the capacity of cash-flow generation and also on the planned scenario of future growth for each company. This paper shows that the methodology proposed can serve as a valuable tool, complementing the qualitative criteria (which, obviously, should not be ignored) for assessing and selecting a start-up investment.

Application of varimax rotated principal component analysis in quantifying some zoometrical traits of a relict cow

Pares-Casanova, P.M.,Sinfreu, I.,Villalba, D. The Korean Society of Veterinary Science 2013 大韓獸醫學會誌 Vol.53 No.1

A study was conducted to determine the interdependence among the conformation traits of 28 "Pallaresa" cows using principal component analysis. Originally 21 body linear measurements were obtained, from which eight traits are subsequently eliminated. From the principal components analysis, with raw varimax rotation of the transformation matrix, two principal components were extracted, which accounted for 65.8% of the total variance. The first principal component alone explained 51.6% of the variation, and tended to describe general size, while the second principal component had its loadings for back-sternal diameter. The two extracted principal components, which are traits related to dorsal heights and back-sternal diameter, could be considered in selection programs.

Silhouette differences among cats do not suggest a general selection for paedomorphosis

Pares-Casanova, Pere M. The Korean Society of Veterinary Science 2013 大韓獸醫學會誌 Vol.53 No.3

Paedomorphosis is the retention of juvenile morphology at maturity and is important in generating evolutionary change in domestic species and species in the wild. This preliminary study compared morphological characteristics of seven domestic cat pure breeds and felid species from around the world. An original procedure based on elliptical Fourier (EF) methods was applied to head lateral views of specimens and were assessed in order to analyse head profile. For comparative purposes three domestic kittens of different ages and three species of genus Lynx were also used. EF descriptors, allowed for the quantification of the head profile. Using the Fourier transform, reconstruction of the mean head profile revealed that there was a general shape difference between wild cats, domestic cats and kittens. Results suggested that variability in head profile differentiate quite well between adult cats and kittens, but domestic and wild cats appeared grouped into a similar cluster. The similarity between breeds can thus be attributed more to the general head profile than to flatness, i.e. to the general conformation rather than facial profile. Therefore, no effect of paedomorphism on the studied breeds can be undertaken. The present approach opens interesting ethnological perspectives for the aloidic characterisation for domestic breeds.

Conservative neural symmetry of the caprine mandible

Pares-Casanova, Pere M. The Korean Society of Veterinary Science 2013 大韓獸醫學會誌 Vol.53 No.4

Fifteen dry dentate and complete mandible samples from the White Rasquera goat breed were studied for symmetry. Thirty-one landmarks were digitally located on the images of the lateral and medial aspects of each hemimandible. Distances between these landmarks allowed the evaluation of the whole hemimandible and also the neural mandible. In the studied samples, the mandible was rather symmetrical, especially in the medial neural part, and in general, there was no side dominance. Only the diastema differed significantly between the sides, and this was related to the rostral part (incisive arch). The incisive region was the least symmetrical region of the caprine mandible, indicating a modular structure more conservative for the neural part. If unsigned asymmetry is interpreted as a measure of developmental stability, then the studied breed presented a marked ability to develop in good fitness despite the harsh environment. The measurements presented here can also be used as a reference for researchers designing experimental studies, especially on mandibular catch-up growth, and as an aid for zooarchaeologists comparing results from dead animals with those from living goat populations.

The Galaxy at TeV and Multi-TeV energies

Sabrina Casanova 한국물리학회 2010 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.56 No.5

Milagro is a water Cherenkov detector that continuously views the entire overhead sky at TeV energies. The large field-of-view of 2 steradians, combined with the long observation time, makes Milagro the most sensitive instrument available for the study of large, low-surface-brightness sources,such as the gamma radiation arising from interactions of cosmic radiation with interstellar matter and for the search of steady and transient sources. Recent development in the analysis techniques used by the Milagro collaboration have significantly improved the sensitivity of the Milagro detector. Here, we report on observations of gamma-ray sources in the region of Galactic longitude included between 30 and 220 degrees and Galactic latitude between -10 and 10 degrees, and on the evaluation of Galactic diffuse emission from the same region.

Diversity of subfamily Anacharitinae (Hymenoptera: Cynipoidea: Figitidae) in China with description of a new species of Xyalaspis Hartig, 1843

Noel Mata-Casanova,Jesús Selfa,YipingWang,Xue-xin Chen,Juli Pujade-Villar 한국응용곤충학회 2016 Journal of Asia-Pacific Entomology Vol.19 No.1

The poorly known Anacharitinae fauna fromChina is studied. Two species of genus Aegilips Haliday, 1835 (which only had one species previously recorded there) are recorded in China. The genera Anacharis Dalman, 1823 and Xyalaspis Hartig, 1843 are recorded for the first time with two and four species present respectively. A new species of Xyalaspis, X. ribesi sp. n., is described. Diagnostic characters of the new species are illustrated, and data about biology, distribution and morphological variability of the Chinese Anacharitinae are discussed.

Revision of the Asian species of genus Xyalaspis Hartig, 1843 (Hymenoptera: Figitidae: Anacharitinae)

Noel Mata-Casanova,Jesús Selfa,Juli Pujade-Villar 한국응용곤충학회 2014 Journal of Asia-Pacific Entomology Vol.17 No.3

A revisionofgenus Xyalaspis (Hymenoptera: Anacharitinae) in Asia is given. Xyalaspis lituricis Belizin, 1965 is synonymizedwith Xyalaspis hyalina Belizin, 1951. Four new species are described: Xyalaspis esbelta n. sp., Xyalaspisdimorphica n. sp., Xyalaspis orientalis n. sp., and Xyalaspis siamensis n. sp. Diagnostic characters are illustrated anddata about biology, distribution and morphological variability of the studied species are discussed. A key to theAsian species of this genus is included.

그리니치 자오선 : 문학의 시간에 대한 고찰

파스칼 카사노바(Pascal Casanova) 한국문화연구학회 2021 문화연구 Vol.9 No.1

Gene deletion and constitutive expression of the pectate lyase gene 1 (MoPL1) lead to diminished virulence of Magnaporthe oryzae

Wegner Alex,Casanova Florencia,Loehrer Marco,Jordine Angelina,Bohnert Stefan,Liu Xinyu,Zhang Zhengguang,Schaffrath Ulrich 한국미생물학회 2022 The journal of microbiology Vol.60 No.1

Phytopathogenic fungi are known to secrete specific proteins which act as virulence factors and promote host colonization. Some of them are enzymes with plant cell wall degradation capability, like pectate lyases (Pls). In this work, we examined the involvement of Pls in the infection process of Magnaporthe oryzae, the causal agent of rice blast disease. From three Plgenes annotated in the M. oryzae genome, only transcripts of MoPL1 considerably accumulated during the infection process with a peak at 72 h post inoculation. Both, gene deletion and a constitutive expression of MoPL1 in M. oryzae led to a significant reduction in virulence. By contrast, mutants that constitutively expressed an enzymatic inactive version of MoPl1 did not differ in virulence compared to the wild type isolate. This indicates that the enzymatic activity of MoPl1 is responsible for diminished virulence, which is presumably due to degradation products recognized as danger associated molecular patterns (DAMPs), which strengthen the plant immune response. Microscopic analysis of infection sites pointed to an increased plant defense response. Additionally, MoPl1 tagged with mRFP, and not the enzymatic inactive version, focally accumulated in attacked plant cells beneath appressoria and at sites where fungal hyphae transverse from one to another cell. These findings shed new light on the role of pectate lyases during tissue colonization in the necrotrophic stage of M. oryzae's life cycle.