3,532 research outputs found
Capital market inefficiencies, credit rationing and lending relationship in SME's
The financing of small-medium enterprises (SME' s) shows a great dependence on short term borrowing from banking institutions and savings banks. The causes of this situation are basically due to low credit availability at the stage of the firm' s life cycle when it requires the greatest access. A seminal paper by Fazzari, Hubbard and Petersen (1988) has served as the basis for important subsequent research. In Spain conclusions drawn by studies in this area mostly agree that the basic reason for the aboye mentioned low credit availability is high borrowing costs due to market imperfections which inevitably lead to credit ratioIÚng. The aim of this paper is twofold. First, to study the roles of firm-creditor relationships (Berger and Udell, 1992,1995; Petersen and Rajan, 1994, 1995) and Loan Guarantee Associations [LGA] in reducing information asymmetries in loan contracts and, second, to attempt to ascertain whether these factors are among the determining factors of loan rates for SME's
One way Doppler extractor. Volume 1: Vernier technique
A feasibility analysis, trade-offs, and implementation for a One Way Doppler Extraction system are discussed. A Doppler error analysis shows that quantization error is a primary source of Doppler measurement error. Several competing extraction techniques are compared and a Vernier technique is developed which obtains high Doppler resolution with low speed logic. Parameter trade-offs and sensitivities for the Vernier technique are analyzed, leading to a hardware design configuration. A detailed design, operation, and performance evaluation of the resulting breadboard model is presented which verifies the theoretical performance predictions. Performance tests have verified that the breadboard is capable of extracting Doppler, on an S-band signal, to an accuracy of less than 0.02 Hertz for a one second averaging period. This corresponds to a range rate error of no more than 3 millimeters per second
Histología del telson del escorpión Buthus occitanus Amoreux (!789) del primer estadio (Scorpiones, Buthidae)
A fractional-step method for the incompressible Navier-Stokes equations related to a predictor-multicorrector algorithm
"En euskera y en cristiano". Gènere, religió i nació al País Basc durant el franquisme [“En euskera y en cristiano”. Gender, religion and nation in the Basque Country during Francoism]
Des dels seus orígens, el vincle entre nacionalisme basc i religió catòlica ha estat prou estret. Aquest article pretén estudiar aquesta relació des d'una perspectiva de gènere durant la dictadura de Franco. Mitjançant la metodologia de la història oral, s'analitzaran els testimoniatges de quatre dones nascudes i/o residents al País Basc les dècades centrals del segle i que van militar en diferents grups catòlics. Amb el suport de fonts hemerogràfiques publicades per alguns d'aquests moviments, es tractaran també les diferències de discurs en l'àmbit urbà i rural. Així, es defensarà que els canvis experimentats pel catolicisme des de mitjan anys cinquanta van ser decisius en la transformació de la identitat religiosa i de gènere d'aquestes dones i que, al seu torn, els canvis en el model de feminitat hegemònic van provocar algunes tensions dins el discurs nacionalista.
[Since its inception, Basque nationalism has been closely linked with Catholicism. This paper aims to explore this connection from a gender perspective during Franco’s dictatorship by analysing the oral testimonies of four Catholic women who were born and/or were living in the Basque Country during the period 1940-70. It will also consider the differences in discourse in urban and rural environments by examining journals and newsletters published by distinct Catholic movements. Two hypotheses will be argued: first, that the changes experienced by Catholicism from the mid-1950s were decisive in the transformation of the religious and gender identity of these women; and second, that changes to the hegemonic femininity model generated tension in Basque nationalist discourse.
Surveillance of aflatoxin content in dairy cow feedstuff from Navarra (Spain)
Aflatoxins (B1, B2, G1 and G2) are produced by the fungi Aspergillus (A. flavus and A. parasiticus) in substrates used in cattle feed manufacturing. Aflatoxin M1 (AFM1) is a major metabolite of Aflatoxin B1 (AFB1) which may be present in milk from animals that consume contaminated feed. Levels of aflatoxins in 78 dairy cow feedstuff samples from 40 farms located in Navarra were determined by HPLC-FLD (High Performance Liquid Chromatography with fluorescence detection) and post-column derivatization. The influence of geographical location, season and type of feeding system on aflatoxin content was studied. The climatic profile of AFB1 pointed to spring as the season with the highest aflatoxin level (0.086 μg/kg), followed by winter and summer (0.075 and 0.030 μg/kg, respectively), and to a lesser degree, autumn (0.017 μg/kg). Moreover, wet and dry TMR (Total Mixed Ration) feeding systems (i.e. AFB1: 0.076 and 0.068 μg/kg; Aflatoxin G1 (AFG1): 0.050 and 0.011 μg/kg, respectively) showed a greater content of the analyzed aflatoxins in comparison with compound feed (i.e. AFB1: 0.039 μg/kg; AFG1: 0.007 μg/kg). The fact that the majority of the samples collected were based on compound feed shows that this type was preferred by most dairy farmers. The undetectable levels of aflatoxins in the organic homemade compound feedstuff are also worth mentioning. While none of the feedstuff samples contained amounts over those permitted under European legislation (5 μg/kg), the theoretical extrapolation of the carryover rate suggested in previously published experiments of AFB1 to AFM1 in secreted cow's milk predicts that only one of the feed samples studied had a positive aflatoxin level (53.4 ng/kg) higher than the legal limit for raw cow's milk
Estimation of dietary intake and content of lead and cadmium in infant cereals marketed in Spain
Lead and cadmium have become highly toxic metallic elements. There is an obvious
5 toxicological impact of these elements on infants since their intestinal absorption is
6 significantly higher than in adults, thus it is desirable to quantify lead and cadmium levels in
7 commonly consumed infant foods. Zeeman background correction, transversely heated
8 graphite furnace atomic absorption spectrometry, was used to determine both the lead and
9 cadmium content of 91 Spanish infant cereals. Cereals were assessed in terms of different
10 types, cereal predominant in formulation and whether it was obtained organically or
11 conventionally. Preliminary analysis revealed a noticeably higher content of lead and
12 cadmium (median, Q1-Q3) in organic cereals (n = 17, Pb: 26.07; 21.36-51.63; Cd: 18.52;
16.56-28.50 μg kg-1 13 ) in relation to conventional ones (n =74, Pb: 10.78; 6.43-19.33; Cd: 7.12;
4.40-11.77 μg kg-1 14 ). Three formulations exceeded European lead maximum levels. Added
15 ingredients (milk, cocoa, fruit and honey) to the cereal base provide lead enrichment. For
16 cadmium, this pattern was observed by cereal based on cocoa, but also the raw materials
17 contributed with a dilution phenomenon, decreasing the final cadmium concentration in infant
18 cereal. Apart from several organically produced cereals, lead content showed a narrow
19 variation, where gluten-free cereals provide lower cadmium content than formulations
20 containing gluten. Dietary intakes of both elements were assessed in comparison with the
21 reference intake values proposed by the EFSA Panel on Contaminants in the Food Chain.
22 Organic infant cereals based on honey and cocoa supplied the highest risk intakes of lead and
23 cadmium, respectively. In accordance with the actual state of knowledge on lead and
24 cadmium toxicity and attending to the upper limits calculated from risk intake values set by
25 EFSA, it seems prudent to call for a revision of both heavy metals content regulated by EC to
set a maximum guideline values for infant cereal at 55 and 45 μg kg-1 26 , respectively
Ultrasonic estimates of fat thickness and longissimus dorsi muscle depth for predicting carcass composition of live Aragon lambs
Six ultrasonic fat and muscle depth measurements, taken on the left and the right side of the fourth lumbar vertebra and third stemebra of the breast bone, were related to carcass composition to determine the accuracy of these measurements for predicting
carcass compositon of live Aragdn lambs (Temasco) . Live weight alone accounted for 21, 19,26, 18 and 47% of total variation
of muscle, bone plus remainder, total fat, and subcutaneous and intermuscular fat, respectively. Addition of ultrasonic fat depth
measurement on the right side of the lumbar region accounted for a further 18,31,33 and 36% of muscle, bone plus remainder,
total carcass fat and subcutaneous fat, respectively. Addition of the same measurement taken on the left side accounted for a
further 15% of intermuscular fat. Live weight alone accounted for only 4% of the total variation of kidney and pelvic fat, but the
addition of ultrasonic fat depth measurement on breast bone accounted for a further 26% of the variation of this fat depot. The
accuracy of prediction of carcass composition on live animals could be improved by the addition of ultrasonic fat measurements.Un total de 6 mesures d'épaisseur du gras et du muscle, réalisées en utilisant des ultrasons sur la 4ème vertèbre lombaire et la 3ème sternèbre sternale, ont été rapportées à la composition de la carcasse, en ayant comme objetif d'étudier l'exactitude de ces mesures en tant qu'élément de prédiction de la composition de la carcasse d'agneaux vivants producteurs du ‘Ternasco d'Aragón’.
Le poids vif à lui seul a expliqué 21, 19, 26, 18 et 47% de la variation totale du muscle, de l'os plus les déchets, du gras total et du gras souscutané et intermusculaire, respectivement.
L'addition des mesures d'épaisseur du gras (mesure C) réalisées par ultrasons sur le côté droit de la région lombaire, ont augmenté de 18, 31, 33 et 36% la précision de l'estimation de la variation totale du muscle, de l'os plus déchets, du gras total et sous-coutané de la carcasse, respectivement. L'addition de la même mesure réalisée sur le côté gauche a augmenté de 15% la précision de l'estimation de la variation totale du gras intermusculaire.
Cependant, le poids vif n'a expliqué que 4% de la variation totale du gras pelvico-rénal, mais l'addition de la mesure d'épaisseur du gras sternal total, réalisée aux ultrasons, a augmenté de 26% la précision de l'estimation de la variation de ce dépôt adipeux.
La précision de la prédiction de la composition de la carcasse sur l'animal vivant pourrait augmenter par l'addition de mesures de l'épaisseur du gras réalisées aux ultrasons.Un total de 6 medidas de espesor de grasa y músculo realizadas mediante la utilización de ultrasonidos sobre la 4a vertebra lumbar y la 3a esternebra del esternón fueron relacionadas con la composición de la canal, con el principal objetivo de estudiar la exactitud de estas medidas como predictoras de la composición de la canal de corderos vivos productores de ‘Ternasco de Aragón’.
El peso vivo solo explicó el 21, 19, 26, 18 y 47% de la variación total del músculo, hueso más desechos, grasa total y grasa subcutanea e intermuscular respectivamente.
La adición de las medidas de espesor de grasa (medida C) realizadas con ultrasonidos sobre el lado derecho de la región lumbar, incrementaron un 18, 31, 33 y 36% la precisión de la estimacón de la variación total del músculo, hueso más desechos, grasa total y subcutánea de la canal respectivamente. Y la adición de la misma medida realizada sobre el lado izquierdo incrementó un 15% la precisión en la estimación de la variación total de grasa intermuscular.
Sin embargo el peso vivo solo explicó el 4% de la variación total de grasa pelvico-renal, pero la adición de la medida de espesor de grasa total del esternón realizada con untrasonidos, incrementó un 26% la precisión de la estimación de la variación de este depósito adiposo.
La precisión de la predicción de la composición de la canal en el animal vivo podría ser incrementada con la adición de medidas del espesor de grasa realizadas con ultrasonidos
Survey of total mercury and arsenic content in infant cereals marketed in Spain and estimated dietary intake.
Due to the fact that infants and children are especially sensitive to mercury and arsenic
7 exposure, predominantly through diet, a strict control of the most widely consumed
8 infant foods, especially infant cereals, is of paramount importance. Levels of both total
9 mercury and arsenic in 91 different infant cereals from ten different manufacturers in
10 Spain were determined by flow injection adapted to cold vapor and hydride generation
11 atomic absorption spectrometry, respectively. Cereals were assessed in terms of the
12 different types, the predominating cereal in the formulation, the added ingredients, and
13 whether the cereal was organically or conventionally obtained. In general, the content of
14 toxic elements (median (Q1;Q3)) found in infant cereals based on conventionally
obtained raw materials (n=74, Hg: 2.11 (0.42;4.58), As: 21.0 (9.4;50.9) μg·Kg-1 15 ) was
16 lower than in cereals produced by organic methods (n= 17, Hg: 5.48 (4.54;7.64), As:
96.3 (87.5;152.3) μg·Kg-1 17 ). Mercury content in infant cereals shows the higher values in
18 those formulations with ingredients susceptible to particulate contamination such as
19 gluten-free or cacao-based cereals. The highest arsenic content appears in the rice-based
20 cereals. The mercury and the inorganic arsenic dietary intakes for infants fed on the
21 infant cereals studied were assessed, taking into account the different stages of growth.
22 Organic infant cereals based on cocoa showed the highest risk intakes of mercury, very
23 close to exceeding the intake reference. Just the opposite, 95% of the organically
24 produced infant cereals and 70% of the conventional gluten-free infant cereals showed
25 an inadmissible risk of arsenic intake. Thus, it seems prudent to call for continued
26 efforts in standardizing routine quality control and in reducing arsenic levels in infant
27 cereals; in addition it is essential that relevant legislation be established and regulated
28 by EC regarding these two toxic elements
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