Cephalobellus lobulata n. sp. (Oxyurida:Thelastomatidae) a parasite of Neocurtilla claraziana Saussure (Orthoptera: Gryllotalpidae) from Argentina

Cephalobellus lobulata n. sp. (Oxyurida: Thelastomatidae) a parasite of the mole cricket Neocurtilla claraziana Saussure (Orthoptera: Gryllotalpidae) found in Argentina is described and illustrated. It is characterized by a short buccal cavity armed with three teeth, a striated cuticle with the first annule wide with four lobes and the second annule divided in twelve lobes. The male have three pairs of preanal papillae and two pairs of postanal papillae.

A new species of Thelastomathidae (Nematoda) a parasite of Neocurtilla claraziana Saussure (Orthoptera, Gryllotalpidae) in Argentina

Gryllophila cephalobulata n. sp. (Nematoda, Thelastomatidae) a parasite of the mole cricket Neocurtilla claraziana (Orthoptera, Gryllotalpidae) isolated in Buenos Aires Province, is described and illustrated. It is characterized by cuticle annulated all along the length of the body; the first ring has 4 lobules, the second one has 14 lobules, the others rings are simple, the stoma is short and has 4 small teeth, the genital papillae are arranged in 5 pairs, of which 3 pairs are preanal and 2 pairs are postanal. The tail appendage of the male is long and filiform.

Partitioning of reproduction in animal societies.

A key feature differentiating cooperative animal societies Is the apportionment of reproduction among individuals. Only recently have studies started to focus on intraspecific variability in the distribution of reproduction within animal societies, and the available data suggest that this variability might be greater than previously suspected. How can one account for intra-and interspecific variability in partitioning of reproduction? This Is one of the most intriguing problems in the study of social behaviour, and understanding the factors underlying this variability is one of the keys to understanding the properties of complex animal societies.

Diets based on virgin olive oil or fish oil but not on sunflower oil prevent age-related alveolar bone resorption by mitochondrial-related mechanisms.

BACKGROUND/OBJECTIVES Aging enhances frequency of chronic diseases like cardiovascular diseases or periodontitis. Here we reproduced an age-dependent model of the periodontium, a fully physiological approach to periodontal conditions, to evaluate the impact of dietary fat type on gingival tissue of young (6 months old) and old (24 months old) rats. METHODS/FINDINGS Animals were fed life-long on diets based on monounsaturated fatty acids (MUFA) as virgin olive oil, n-6 polyunsaturated fatty acids (n-6PUFA), as sunflower oil, or n-3PUFA, as fish oil. Age-related alveolar bone loss was higher in n-6PUFA fed rats, probably as a consequence of the ablation of the cell capacity to adapt to aging. Gene expression analysis suggests that MUFA or n-3PUFA allowed mitochondria to maintain an adequate turnover through induction of biogenesis, autophagy and the antioxidant systems, and avoiding mitochondrial electron transport system alterations. CONCLUSIONS The main finding is that the enhanced alveolar bone loss associated to age may be targeted by an appropriate dietary treatment. The mechanisms involved in this phenomenon are related with an ablation of the cell capacity to adapt to aging. Thus, MUFA or n-3PUFA might allow mitochondrial maintaining turnover through biogenesis or autophagy. They might also be able to induce the corresponding antioxidant systems to counteract age-related oxidative stress, and do not inhibit mitochondrial electron transport chain. From the nutritional and clinical point of view, it is noteworthy that the potential treatments to attenuate alveolar bone loss (a feature of periodontal disease) associated to age could be similar to some of the proposed for the prevention and treatment of cardiovascular diseases, a group of pathologies recently associated with age-related periodontitis.

Le Secret des secrets, attribué à Aristote.

Acquis le 29 juin 1827 de M. Pontier, libraire d'Aix-en-Provence, pour le prix de 25 francs; cf. B.n.F., département des Manuscrits, Archives Modernes 492ter, registre des acquisitions du département des Manuscrits 1821-1830, f. 196 "Ms. in 4° sur velin, maroquin rouge, intitulé Secreta secretorum Aristotelis ad Alexandrum"; — note du XVIe s. "Hunc librum ex Avinione olim attulit nobilis et eruditus vir Guilelmus de Pleurre Priceii ad Albam dum in humanis ageret dominus, quem longo postea tempore possedit, et in pretio habuit ejus filius nobilis atque eruditus nec minus honestus ac praepotens vir Colinus de Pleurre qui anno Domini 1504 mensis martii die tertia medio sublatus, Ludovica Mole ejus conjux cordata atque honesta foemina hunc mihi Nicolao Prunel dono dedit, quam Deus longaevam faveat; Colino vero pro dicto locum pacis misericorditer tribuat. Nicolaus Prunel, abbas coenobii S. Lupi" (75)

Assessment of melanocytic skin lesions with a high-definition laser Doppler imaging system.

BACKGROUND: Early detection is a major goal in the management of malignant melanoma. Besides clinical assessment many noninvasive technologies such as dermoscopy, digital dermoscopy and in vivo laser scanner microscopy are used as additional methods. Herein we tested a system to assess lesional perfusion as a tool for early melanoma detection.¦METHODS: Laser Doppler flow (FluxExplorer) and mole analyser (MA) score (FotoFinder) were applied to histologically verified melanocytic nevi (33) and malignant melanomas (12).¦RESULTS: Mean perfusion and MA scores were significantly increased in melanoma compared to nevi. However, applying an empirically determined threshold of 16% perfusion increase only 42% of the melanomas fulfilled the criterion of malignancy, whereas with the mole analyzer score 82% of the melanomas fulfilled the criterion of malignancy.¦CONCLUSION: Laser Doppler imaging is a highly sensitive technology to assess skin and skin tumor perfusion in vivo. Although mean perfusion is higher in melanomas compared to nevi the high numbers of false negative results hamper the use of this technology for early melanoma detection.

Euromelanoma: a dermatology-led European campaign against nonmelanoma skin cancer and cutaneous melanoma: past, present and future.

Euromelanoma is a dermatologist-led skin cancer prevention programme conducting an annual screening and public education campaign in over 20 European countries. Within its 10-year history, Euromelanoma has screened over 260,000 individuals across Europe, detecting a significant number of cutaneous melanomas and nonmelanoma skin cancers, identifying high-risk individuals for further surveillance and promoting awareness on the suspicious features of melanoma and the hazardous effects of ultraviolet exposure. In this review article, we summarize the history of the Euromelanoma campaign, present its organizational structure and discuss the results of the campaign in individual countries and on a European scale. Euromelanoma has had a significant impact on melanoma prevention and early diagnosis in participating countries and, despite many challenges, has positively influenced public health attitudes towards regular mole examination and the implementation of preventive measures against skin cancer.

Ensaio clínico comparando três modalidades de crioterapia em mulheres não grávidas

O estudo teve como objetivo comparar três modalidades de crioterapia em mulheres saudáveis e não grávidas. Trata-se de um ensaio clínico randomizado, não controlado, com 32 alunas do curso de graduação de uma faculdade de enfermagem particular da cidade de São Paulo, divididas em três grupos (gelo água, gelo mole, gelo gel). Foram verificadas as temperaturas (axilar, coxa e das três bolsas de gelo) entre zero e vinte minutos. As temperaturas das bolsas foram: gelo mole de 9°C negativos a 2°C, gelo água de 0°C a 8°C e gelo gel de 11°C negativos a 2°C. Houve diferença significativa entre as médias das temperaturas da coxa com 10 minutos (p=0,007), 15 minutos (p=0,003) e 20 minutos (p=0,005). O gel foi mais eficiente no resfriamento comparado aos outros dois métodos. As três modalidades de crioterapia atingem a temperatura recomendada para analgesia e podem ser aplicadas em puérperas com dor perineal após o parto normal.

Binding of amitriptyline to alpha 1-acid glycoprotein and its variants.

Binding studies have been performed between amitriptyline and i) native alpha 1-acid glycoprotein (AAG); ii) its desialylated form; iii) its two variants, S-AAG and F-AAG; and iv) a mixture of S-AAG and F-AAG. Scatchard analysis revealed the presence of two classes of binding sites on AAG. For native AAG, the first class (of high affinity) has an association constant (Ka1) of 1.5 x 10(6) L mol-1 and a number of binding sites per mole of protein (n1) of 0.25, while the second class (of low affinity) has a Ka2 of 3.2 x 10(4) L mol-1 and a n2 of 0.94. Similar data were found for desialylated AAG. S-AAG and F-AAG do not differ in their association constants measured with amitriptyline, but in their number of binding sites per mole of protein (n): S-AAG: n1 = 0.56, n2 = 0.52; F-AAG: n1 = 0.17, n2 = 0.71. These results confirm those of a previous study, in which a higher affinity of S-AAG towards various basic drugs in comparison with F-AAG has been found.

Clave para identificación de crustáceos decápodos y estomatópodos del Perú

En el Perú se han registrado 15 especies de estomatópodos “camarones brujo”, en esta clave sólo se han incluido 12 especies. En cuanto a los decápodos (langostinos, camarones, maruchas, muy-muyes, langostas, ermitaños, centollas y cangrejos) se incluyen 267 especies de las 403 registradas para Perú, correspondiéndole 15 especies a langostas, 73 especies a los anomuros y 179 especies a los braquiuros.

Effect of substrate temperature on deposition rate of rf plasma-deposited hydrogenated amorphous silicon thin films

We present a study about the influence of substrate temperature on deposition rate of hydrogenated amorphous silicon thin films prepared by rf glow discharge decomposition of pure silane gas in a capacitively coupled plasma reactor. Two different behaviors are observed depending on deposition pressure conditions. At high pressure (30 Pa) the influence of substrate temperature on deposition rate is mainly through a modification of gas density, in such a way that the substrate temperature of deposition rate is similar to pressure dependence at constant temperature. On the contrary, at low pressure (3 Pa), a gas density effect cannot account for the observed increase of deposition rate as substrate temperature rises above 450 K with an activation energy of 1.1 kcal/mole. In accordance with laser‐induced fluorescence measurements reported in the literature, this rise has been ascribed to an increase of secondary electron emission from the growing film surface as a result of molecular hydrogen desorption.

Reação de genótipos de feijoeiro comum a Fusarium oxysporum f. sp. phaseoli, Macrophomina phaseolina e Xanthomonas campestris pv. phaseoli

Foi avaliado no presente trabalho o comportamento dos genótipos de feijoeiro (Phaseolus vulgaris L.) PI 150414, PI 163117, PI 175829 branco, PI 175829 roxo, PI 175858, PI 197687, A 417, A 420, A 429, Xan 160, Xan 161, WISHBR 40 e IAC Carioca inoculados com Fusarium oxysporum f. sp. phaseoli, Macrophomina phaseolina e Xanthomonas campestris pv. phaseoli, sob condições de telado/casa de vegetação. Verificou-se que os genótipos Xan 160, PI 150414, A 417, PI 175829 roxo, Xan 161, A 420, PI 163117 e PI 175829 branco foram resistentes a F. oxysporum f. sp. phaseoli e somente o PI 175829 branco apresentou bom nível de resistência a M. phaseolina. Com relação ao comportamento desses genótipos a X. campestris pv. phaseoli, eles foram altamente suscetíveis ao isolado Feij-4 e apenas o genótipo Xan 161 apresentou nível moderado de resistência foliar ao isolado Feij-41.

Ocorrência de nova doença do algodoeiro irrigado, no Brasil, causada por Sclerotinia sclerotiorum

Em 1996, uma nova doença causada pelo fungo Sclerotinia sclerotiorum (Lib.) de Bary foi observada em algodoeiro (Gossypium hirsutum L.), cultivar Deltapine, irrigado sob pivô central, em Paracatu, MG. Os sintomas apresentados foram murcha e podridão da haste, do pecíolo da folha e da maçã, além de serem observados no interior do capulho micélio branco e escleródios escuros do patógeno. O teste de patogenicidade foi efetuado em algodoeiro, nas cultivares Deltapine e IAC 22, e em feijoeiro e quiabeiro, aos 14 dias de idade. As plantas foram incubadas em alta umidade durante 48 horas, a 25ºC. Três dias após a inoculação, verificaram-se sintomas severos de murcha e necrose dos tecidos, de onde o patógeno foi reisolado, completando-se, assim, os postulados de Koch. Este é o primeiro relato da ocorrência natural de S. sclerotiorum em algodoeiro no Brasil.

Seleção de genótipos parentais de acerola com base na divergência genética multivariada

Este trabalho teve por objetivo identificar e selecionar genótipos parentais de acerola (Malpighia emarginata L.) adequadas a programas de melhoramento genético. Nove caracteres quantitativos de maior importância agronômica foram usados para determinação da distância genética e formação de grupos similares de acessos. O agrupamento pelo método de Tocher, a partir das distâncias generalizadas de Mahalanobis, possibilitou a divisão de 14 genótipos em três grupos. Com base na divergência genética e no caráter agronômico-chave (teor de vitamina C), destacaram-se como mais promissores os cruzamentos dos genótipos: AM Mole pertencente ao grupo III, com os genótipos PR AM, N° 18, PR 17, PR 16, Eclipse, AM 22 e Dominga, todos pertencentes ao grupo I.

BRS 137: cultivar de soja para cultivo no Sul do Brasil

A liberação de cultivares de elevado potencial produtivo e com resistência a doenças é fundamental para continuar agregando rendimento na produção brasileira de soja. A cultivar BRS 137 é resultado do programa de melhoramento de soja desenvolvido pela Embrapa. A cultivar apresentou rendimento médio de grãos 2% superior ao da cultivar IAS 5, em 24 ambientes, no Rio Grande do Sul. É resistente à pústula-bacteriana (Xanthomonas axonopodis pv. glycines), ao cancro-da-haste (Diaporthe phaseolorum f. sp. meridionalis), à podridão-parda-da-haste (Phialophora gregata), à mancha-olho-de-rã (Cercospora sojina) e ao oídio (Microsphaera diffusa). É indicada para cultivo no Rio Grande do Sul, em semeaduras realizadas a partir de meados de outubro até fim de novembro, com população máxima de 300.000 plantas/ha.