1,121 research outputs found
Pour L. Muréna ; Pour P. Sylla /
No full textPagination double: 10-163ISBN à partir du tirage de 2002.Autres tirages : 1946, 1957, 1962, 1967, 2002.Notes bibliogr
L. C. Sylla [Material gráfico]
No full textResumen: Descripción: retrato de busto de Sylla basado en una esculturaDatos de publicación tomados de la obra a la que pertenec
Phospholipid hydroperoxide glutathione peroxidase in bull spermatozoa provides a unique marker in the quest for semen quality analysis
No full textPhospholipid hydroperoxide glutathione peroxidase (PHGPx) is a selenoperoxidase accounting for most of the selenium content in mammalian testis, which has been found to be linked to fertility in humans. In this study, we addressed the issue whether PHGPx content in spermatozoa could be a predictive index of fertilization capacity for sire selection in bulls. Measurement of PHGPx in spermatozoa of 92 yearling bulls of three different Italian breeds (Chianina, Romagnola, and Marchigiana) revealed the presence of two quite well separated populations. A PHGPx activity of 130 mU/mg separated the high-PHGPx group (H-PHGPx, n = 73) from the low-PHGPx group (L-PHGPx, n = 19). Forward motility was markedly higher in the H-PHGPx group, which also contained a lower percentage of detached heads, abnormal midpiece, and proximal droplets. On the other hand, differently from the human studies, no correlation was observed between PHGPx activity and number of spermatozoa in the ejaculate. Apart from sperm count, which typically differed among breeds, and number of detached heads in the L-PHGPx group, which correlated with higher sperm Count, no other significant difference in seminal parameters among breeds was apparent. The assay for sperm PHGPx activity therefore emerges as a unique tool to evaluate semen quality for sire selection. (C) 2009 Elsevier Inc. All rights reserved
The rise of securities markets : what can government do?
No full textUsing U.S. securities markets as a case history, the author explores the role securities markets play in economic development, how they emerge, and how regulation can make them more effective. Why the United States? Two centuries ago, it was a small undeveloped country with serious financial problems. It confronted those problems and, guided by Alexander Hamilton, creatively reformed its financial system, which then became a foundation of the U.S. economic infrastructure and a bulwark for long-term growth. When Hamilton's program established public credit and securitiesmarkets in the 1790s, U.S. citizens were immediately able to borrow from older, richer countries. U.S. wealth then increased until, by the end of the nineteenth century, U.S. residents began to lend and invest more abroad than they borrowed. During the 1820s and 1830s, the United States (usually state governments) borrowed large sums from foreign investors to build roads, canals, and early railroads, to make other transportation improvements, and to capitalize state banks. From the 1830s to the end of the century, still larger sums from overseas went into private U.S. railway companies that provided cheap transcontinental transportation. Most of this borrowing took the form of state and corporate bond sales to overseas investors. The pristine U.S. government credit established by Hamilton thus rubbed off on U.S. state and corporate debt. The British stock market did better than the U.S. market until the United States adopted security-market regulation (including disclosuire rules) under the SEC. Then the U.S. market became a world leader. The U.S. stock market developed more slowly than the bond market, but it both aided and benefited from foreign investment in U.S. bonds. Foreign investors preferred debt securities to equities, yet equities create a safety margin for bondholders who, because of this margin, are more willing to purchase and hold bonds. Foreign investors preferred bonds; U.S. investors, after exporting bonds, held more stocks than bonds at home. Why? Because good stock markets permit the conversion of equity securities into cash.Environmental Economics&Policies,Payment Systems&Infrastructure,Financial Intermediation,International Terrorism&Counterterrorism,Economic Theory&Research,Housing Finance,Insurance&Risk Mitigation,Financial Intermediation,Environmental Economics&Policies,Economic Theory&Research
Effect of L-carnitine administration on the seminal characteristics of oligoasthenospermic stallions
No full textThe effect of orally administered L-carnitine on the quality of semen obtained from stallions with different semen qualities was investigated. Four stallions with proven fertility (high motility group, HM) and with normal seminal characteristics (> 50% progressive motility and > 80 x 10(6) spermatozoa/ml), and four questionable breeders (low motility group, LM) with < 50% of sperm progressive motility and < 80 x 106 spermatozoa/ml, received p.o. 20 g Of L-carnitine for 60 days. Blood and semen samples were collected before treatment (TO) and after 30 (T1) and 60 days (T2). Semen evaluation were performed on five consecutive daily ejaculates (n = 120 ejaculates) and conventional semen analysis was carried out on each ejaculate, both at collection and after refrigeration for 24, 48, and 72 h. Furthermore L-carnitine, acetylcarnitine, pyruvate, and lactate concentrations, and carnitine acetyltransferase activity (CAT) were determined both in raw semen and seminal plasma. There were an increase in progressive motile spermatozoa only in the LM group (26.8 +/- 12.9, 39.1 +/- 15.5, and 48.8 +/- 8.6 for T0, T1, and T2, respectively). Free seminal plasma carnitine concentration was higher in the LM group compared to the HM one. Both pyruvate and lactate were higher in the LM group. Raw semen and seminal plasma carnitine and acetylcarnitine levels correlate positively with both sperm concentration and progressive motility; moreover, acetylcarnitine content was positively correlated with total motile morphologically normal spermatozoa. In conclusion, oral administration Of L-carnitine to stallions with questionable seminal characteristics may improve spermatozoa kinetics and morphological characteristics; whereas, it seem to be ineffective in normospermic animals. (c) 2004 Elsevier Inc. All rights reserved
Pregnancy toxemia and lipid mobilization syndrome in two alpaca (Vicugna pacos) at 6 and 10 months of gestation
No full textPrimary ketosis, or pregnancy toxemia, is an uncommon feature of pregnancy in camelids compared to small ruminant species. In severely debilitated females, induction of abortion or parturition should be considered to alleviate the syndrome. This case report describes the clinical findings and medical treatment approach of ketosis in two pregnant alpacas (Vicugna pacos) referred to the University Veterinary Teaching Hospital (OVUD) of the Department of Veterinary Medicine of the University of Perugia, Italy.The first patient was a 7-years old female alpaca 6-months pregnant, 80 kg body weight and BCS 3.25, with a 5 days history of anorexia and regurgitation. At initial examination the body temperature was 38.6 degrees C, with a glycaemia of 341 mg/dL. Ultrasound examination of the abdomen revealed no fetal heart activity. On the third day from admission the animal started to feed and the temperature decreased to 37.9 degrees C. On the same day 100 mu g of prostaglandin agonist (Estrumate (R)) were administered IM. On the fourth day of admission, appetite increased and abortion of a dead fetus was noticed. On fifth day of admission, temperature was 37.5 degrees C, the alpaca showed good appetite and rumination, feces were normal and fetal membranes were expelled. Due to the improved general condition the alpaca was dismissed.The second patient was a 3-year old female alpaca, 10-months pregnant, 65 kg body weight and BCS 3.0, which was referred with lethargy, anorexia and signs of colic. At presentation, glycaemia was 141 mg/dL and rumen activity was absent. Ultrasound examination revealed live and vital fetal parameters (heart rate; 110 bpm). A blood sample was taken and, once centrifuged, the serum appeared milky and triglycerides reached 1208 mg/dL. The general condition of the animal improved with fluid and supportive therapy. At day 4 of admission a morphologically normal, female cria was born; however, no suction reflex was present within the first 1.5 hours. The cria was bottle-feed with bovine frozen colostrum, but the general condition constantly declined; failure of passive transfer was noticed through biochemistry profile. Since no response to supportive therapy was achieved, the cria was euthanized at 36 hours of life. Dam's condition improved and, after expulsion of fetal membranes, the alpaca was dismissed.Prognosis for camelids whit fat mobilization syndrome and pregnancy toxemia depends on the timing of diagnosis and intervention. In both reported cases, our approach showed good results in preserving the survival of the dams, while one fetus was diagnosed as already dead upon initial clinical exam, and the other one died within 48h from birth
Pregnancy toxemia and lipid mobilization syndrome in two alpaca (Vicugna pacos) at 6 and 10 months of gestation
No full textMoor Baa la Taariixoo: Biography of the Great Scholar
No full textThe entire manuscript is available for download as a PDF file(s). Higher-resolution images may be available upon request. For technical assistance, please contact [email protected]. Fieldwork Team: Dr. Fallou Ngom (Pricipal Investigator; Director, African Studies Center), Ablaye Diakité (Local Project Manager), Mr. Ibrahima Yaffa (General Field Facilitator), and Ibrahima Ngom (photographer). Technical Team: Professor Fallou Ngom (Principle Investigator, Project Director and former Director of the African Studies Center at Boston University), and Eleni Castro (Technical Lead, BU Libraries). This collection of Mandinka Ajami materials is copied as part of the African Studies Center’s African Ajami Library. This is a joint project between BU and the West African Research Center (WARC), funded by the British Library/Arcadia Endangered Archives Programme. Access Condition and Copyright: These materials are subject to copyright and are distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License, which permits non-commercial use, distribution, and reproduction in any medium, provided the original author and source are fully cited using the information below. For use, distribution or reproduction beyond these terms, contact Professor Fallou Ngom ([email protected]). Citation: Materials in this web edition should be cited as: Ngom, Fallou, Castro, Eleni, & Diakité, Ablaye. (2018). African Ajami Library: EAP 1042. Digital Preservation of Mandinka Ajami Materials of Casamance, Senegal. Boston: Boston University Libraries: http://hdl.handle.net/2144/27112. For Inquiries: please contact Professor Fallou Ngom ([email protected]). For technical assistance, please contact [email protected] / Custodial history: The owner translated the manuscript from the Arabic original.The manuscript is a biography of the Mandinka scholar called Fode Koule Sylla (1752-1843), also known as Sylla Baa (Mandinka: The Great Sylla). This manuscript is based on the Arabic original that Fode Koule Sylla wrote. It was translated in Mandinka Ajami by the owner, Arfang Karamo Sylla, who is a great grandson of Sylla Baa, so that Mandinka Ajami literates can learn about his history. As customary in Muslim writings, the manuscript begins with an Islamic doxology in Arabic and continues in Mandinka Ajami. It traces the origin of Fode Koule Sylla to Boundou in Eastern Senegal and explains his itinerary, his host families, and the circumstances that brought him to Pakao-Darsilami in Casamance
Emerging Financial Markets and Early U.S. Growth
No full textStudies of early U.S. growth traditionally have emphasized real-sector explanations for an acceleration that by many accounts became detectable between 1815 and 1840. Interestingly, the establishment of the nation's basic financial structure predated by three decades the canals, railroads, and widespread use of water and steam-powered machinery that are thought to have triggered modernization. We argue that this innovative and expanding financial system, by providing debt and equity financing to businesses and governments as new technologies emerged, was central to the nation's early growth and modernization. The analysis includes a set of multivariate time series models that relate measures of banking and equity market activity to measures of investment, imports and business incorporations from 1790 to 1850. The findings offer support for our hypothesis of finance-led' growth in the U.S. case. By implication, the interest today in improving financial systems as a means of fostering sustainable growth is not misplaced.
Emerging Financial Markets and Early U.S. Growth
No full textStudies of early U.S. growth traditionally have emphasized real-sector explanations for an acceleration that by many accounts became detectable between 1815 and 1840. Interestingly, the establishment of the nation's basic financial structure predated by three decades the canals, railroads, and widespread use of water and steam-powered machinery that are thought to have triggered modernization. We argue that this innovative and expanding financial system, by providing debt and equity financing to businesses and governments as new technologies emerged, was central to the nation's early growth and modernization. The analysis includes a set of multivariate time series models that relate measures of banking and equity market activity to measures of investment, imports and business incorporations from 1790 to 1850. The findings offer support for our hypothesis of "finance-led" growth in the U.S. case. By implication, the interest today in improving financial systems as a means of fostering sustainable growth is not misplaced.
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