41,175 research outputs found
Energy efficient innovative lighting and energy supply solutions in developing countries
No full textThe vast majority of the rural population in the de veloping countries is out of reach of electricity and hence has to depend on the tradi tional fuels to fulfil the daily energy needs. Providing grid electricity to the rural areas of ma ny developing countries is a very difficult task due to the geographical complexity and lack of fina ncial resources. The paper explains the use of different renewable energy sources in combination w ith efficient lighting technology as a realistic option to provide clean lighting services to develo ping countries. The application of Light Emitting Diodes and renewable energy sources has be en a sustainable solution to the basic lighting needs of rural people. The paper also pres ents a comparison of costs between available renewable energy technologies
Letter from Carl Hayden to F. R. Goodman, County Engineer
No full textLetter from Carl Hayden to F. R. Goodman regarding the construction of new roads
Letter from Carl Hayden to F. R. Goodman
No full textLetter from Carl T. Hayden to F. R. Goodman concerning the purchase of Bright Angel Trail and construction of an approach road to the park
Letter from F. R. Goodman to Carl Hayden
No full textLetter from F. R. Goodman to Carl T. Hayden asking for clarification about the agreement to construct an approach road to the par
Erratum to: Effect of moderate red wine intake on cardiac prognosis after recent acute myocardial infarction of subjects with Type 2 diabetes mellitus (Diabetic Medicine, (2006), 23, 9, (974-981), 10.1111/j.1464-5491.2006.01886.x)
No full textIn an article by Marfella et al, the author name C. Saron is incorrect and should be listed as C. Sardu. Therefore the correct author list is: R. Marfella, F. Cacciapuoti, M. Siniscalchi, F. C. Sasso, F. Marchese, F. Cinone, E. Musacchio, M. A. Marfella, L. Ruggiero, G. Chiorazzo, D. Liberti, G. Chiorazzo, G. F. Nicoletti, C. Sardu, F. D'Andrea, C. Ammendola, M. Verza and L. Coppola.In an article by Marfella et al, the author name C. Saron is incorrect and should be listed as C. Sardu. Therefore the correct author list is: R. Marfella, F. Cacciapuoti, M. Siniscalchi, F. C. Sasso, F. Marchese, F. Cinone, E. Musacchio, M. A. Marfella, L. Ruggiero, G. Chiorazzo, D. Liberti, G. Chiorazzo, G. F. Nicoletti, C. Sardu, F. D'Andrea, C. Ammendola, M. Verza and L. Coppola
F. R. Leavis: The Creative University
No full textThis is a critical introduction to the educational thought of F. R. Leavis (1895-1978), the greatest English literary critic of the twentieth century, providing the first in-depth examination of Leavis's ideas in relation to contemporary mass higher education. During the course of a long, prolific and controversial academic career, which saw him take issue with figures such as Wittgenstein, T. S. Eliot and C. P. Snow, Leavis became one of the most articulate advocates for the idea of the university as 'a centre of consciousness and human responsibility' in the face of what he saw as the relentless technological drive of civilisation. With the journal Scrutiny which he co-founded, as well as his critical writings, Leavis became a decisive influence on generations of teachers in Britain and overseas. Widely misrepresented as narrowly elitist, his ideas about 'the creative university', with their radical, student-centred approach to teaching, constitute a powerful resource for a higher education system grappling with the contradictory demands of continuity and change. Based on original research, the study provides an overview of Leavis's life, work and heritage and his educational world view, and a comprehensive exploration of Leavis's pedagogy from theoretical and practical perspectives. It also includes a first-hand account by the author of being taught by Leavis in person
Pinpanetta tedfordi Worthy 2009, SP. NOV.
No full textSPECIES PINPANETTA TEDFORDI SP. NOV. (FIG. 1) <p> <i>Holotype:</i> SAM P.41257, complete R humerus (Fig. 1A, F), reassembled from two pieces; shaft with some wear on distal margin of bicipital crest and on caudal shaft surface; light brown in colour.</p> <p> <i>Diagnosis:</i> A species of <i>Pinpanetta</i> about the size of <i>Oxyura australis</i>, characterized by the following features: dorsal pneumotricipital fossa excavated below head; elongate deltoid crest with about 50% length extending distad of bicipital crest; ventral pneumotricipital fossa, from median crest, wider than its length measured from the ventral tubercle to the distal end of the bicipital crest – shaft junction; shaft narrows distally; facet for the attachment of anterior ligament directed distoventrally; and on ventral facies, attachment of pronator brevis positioned towards cranial facies, not centrally.</p> <p> <i>Etymology:</i> For R. H. (Dick) Tedford whose efforts over many years have revealed much about the Namba and Etadunna Formations and their contained faunas and whose expeditions collected many of the following specimens.</p> <p> <i>Type locality:</i> Young Bucks Quarry, site code RV-9002, Lake Palankarinna, 28° 47 <i>′</i> S, 138° 24 <i>′</i> E, Tirari Subbasin, Lake Eyre Basin, SA, collected N.S. Pledge <i>et al.</i>, xii.1992.</p> <p> <i>Horizon:</i> Stratigraphy/Age/Fauna: Etadunna Formation, Late Oligocene 24–26 Mya, Minkana LF, Zone A.</p> <p> <i>Distribution:</i> Late Oligocene (24–26 Mya): Lake Palankarinna, Etadunna Formation, Minkana LF,</p> <p>Zone A and Ditjimanka LF, Zone B, Member 7; Lake Pinpa, Namba Formation, Pinpa LF.</p> <p> <i>Measurements of holotype:</i> TL = 65.6 mm, PW = (maximum width from dorsal tubercle) 14.5 mm, SW = 4.0 mm, DW = 9.0 mm, depth dorsal condyle = 5.3 mm.</p> <p> <i>Paratypes:</i> Lake Palankarinna, Etadunna Formation: SAM P.42699, s+dR humerus, Neville’s Nirvana, Minkina LF, Zone A, collection code VSQ 1978- 40P. UCMP 46173, s+dL humerus, Tedford Locality Site 2, Ditjimanka LF, Zone B, Member 7, site code UCMP V-5375, collected by R. A. Stirton 1954, collection code RAS #4803. UCMP 56998, well preserved R humerus with the shaft broken and joined with some plaster infill caudally, Stirton Site 2, Ditjimanka LF, Zone B, Member 7, site code UCMP V-5375, collected by R. H. Tedford <i>et al.</i>, 1957, collection code RHT#450 (Fig. 1B, G).</p> <p> Lake Pinpa; Namba Formation, Pinpa LF: SAM P.43133 (formerly AMNH 10957), dR humerus, collected by R. H. Tedford <i>et al.</i>, 1971 at Site C, collection code QMAM 151; SAM P.43130 (formerly AMNH 10835), d+sL humerus, collected by R. H. Tedford <i>et al.</i>, 1971 at Site C, collection code QMAM 252.</p> <p> <i>Referred material:</i> Humeri – SAM P.23480, part pR humerus, Lake Pinpa, Namba Formation, Pinpa LF. SAM P.27846, dR humerus, west of site SIAM, Lake Palankarinna, Etadunna Formation, Ditjimanka LF, Zone B. SAM P.41262, dL humerus, White Sands Basin, Lake Palankarinna, Etadunna Formation, Ditjimanka LF, Zone B. QM F52743 (= AR17105), dL humerus, Ringtail Site, Gag Plateau, System C, Riversleigh.</p> <p> <i>Measurements:</i> See Table 1.</p> <p> <i>Description and comparison:</i> Humeri of <i>Pi. tedfordi</i> have the following additional features: dorsal pneumotricipital fossa variably excavated under the head, slightly in holotype, marked in UCMP 56998 as in <i>Malacorhynchus</i>; pit for attachment of ligamentum collaterale dorsale on dorsal face of ectepicondyle, deep, divided by median ridge as in all anatids, although this median ridge is unusually weak in SAM P.41257; olecranal fossa well marked; brachial fossa elongate, aligned up shaft, in holotype <i>c</i>. 2.1 mm wide by 5 mm long with proximal dorsal margin barely extending past midshaft width, relatively deeper and extends closer to dorsal margin in other specimens, e.g. UCMP 46173, UCMP 56998, SAM P.43133.</p> <p> Although distinguished from all oxyurines as indicated in the generic description, humeri of <i>Pinpanetta tedfordi</i> are most similar to those of <i>Oxyura</i> and <i>Malacorhynchus</i>. Both are distinguished from <i>Pi. tedfordi</i> by a marked notch at the ventral end of the capital groove and a shorter deltoid crest. <i>Oxyura</i> further differs as follows: relatively wider ventral pneumotricipital fossa and bicipital crest; distinct groove dorsad of median crest; attachment of pronator brevis fused with ventral facies of ventral epicondyle; and attachment of anterior ligament not buttressed anteriorly. <i>Malacorhynchus</i> humeri further differ by: lack of distal narrowing of the shaft; pocket of ventral pneumotricipital fossa much deeper; distal margin of bicipital crest more convex; facet for attachment of anterior ligament more distally directed; attachment of pronator brevis on ventral facies more central.</p> <p> The New Zealand Early Miocene fossils <i>Manuherikia</i> and <i>Dunstanetta</i> share with <i>Pi. tedfordi</i> a distally narrowing shaft, but differ in the features listed above, notably with a marked notch in their proximal profile, a shorter deltoid crest, an elongate dorsal tubercle, a deeper ventral pneumotricipital fossa that extends under the median crest, and a relatively wider dorsal pneumotricipital fossa.</p> <p> QM F52743, from Ringtail Site, System C, is one of only two confirmed anatid bones from the Carl Creek limestone at Riversleigh. It is slightly larger but otherwise indistinguishable from SAM P.43130 from the Namba Formation, which is one of the larger specimens attributed to <i>Pinpanetta tedfordi</i> (Table 1).</p>Published as part of <i>Worthy, Trevor H., 2009, Descriptions and phylogenetic relationships of two new genera and four new species of Oligo-Miocene waterfowl (Aves: Anatidae) from Australia, pp. 411-454 in Zoological Journal of the Linnean Society 156 (2)</i> on pages 417-419, DOI: 10.1111/j.1096-3642.2008.00483.x, <a href="http://zenodo.org/record/5444417">http://zenodo.org/record/5444417</a>
Letter from F. R. Goodman, Coconino County HIghway Department, to Carl Hayden
No full textLetter from F. R. Goodman to Carl Hayden expressing Coconino County's interest in handing over Bright Angel Trail to the government provided a sufficient amount of money is appropriated to build a road from Maine to the Grand Canyon
Corrigendum to “Presence and function of kisspeptin/KISS1R system in swine ovarian follicles” (Theriogenology (2018) 115 (1–8), (S0093691X1830147X), (10.1016/j.theriogenology.2018.04.006))
No full textThe authors regret the following changes to the author group G. Basinia, F. Grassellia, S. Bussolatia, R. Ciccimarraa, M. Maranesib, A. Bufalarib, C. Dall'Agliob, F. Parilloc,#, M. Zeranib,c,*. a Dipartimento di Scienze Mediche Veterinarie, Università di Parma, 43126 Parma, Italy. b Dipartimento di Medicina Veterinaria, Università di Perugia, 06126 Perugia Italy. c Scuola di Bioscienze e Medicina Veterinaria, Università di Camerino, 62024 Matelica Italy. # Deceased. * Corresponding author: tel.: +39 0755857642; fax +39 0755857654. E-mail address: [email protected] (M. Zerani). And to the acknowledgements and figures
Gravitational collapse of massless scalar field in f(R) gravity
No full textWe study the spherically symmetric gravitational collapse of massless scalar matter field in asymptotic flat spacetime in the Starobinsky R-2 gravity, one specific model in the f(R) gravity. In the Einstein frame of f(R) gravity, an additional scalar field arises due to the conformal transformation. We find that in addition to the usual competition between gravitational energy and kinetic energy in the process of gravitational collapse, the new scalar field brought by the conformal transformation adds one more competing force in the dynamical system. The dynamical competition can be controlled by tuning the amplitudes of the initial perturbations of the new scalar field and the matter field. To understand the physical reasons behind these phenomena, we analyze the gravitational potential behavior and calculate the Ricci scalar at center with the change of initial amplitudes of perturbations. We find rich physics on the formation of black holes through gravitational collapse in f(R) gravity.NNSF of ChinaSCI(E)[email protected]; [email protected]; [email protected]
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