1,356,918 research outputs found
Pierre Gassmann to address "Humanitarianism and the Global War on Terror", Former head of the ICRC in Baghdad to speak at Vanderbilt
No full textIncludes descriptive metadata provided by producer in MP3 file: "Pierre Gassmann has experienced firsthand the violence plaguing Iraq. As head of the delegation to Iraq of the International Committee of the Red Cross (ICRC), he was sitting in his Baghdad office in late October 2003 when a suicide bomber drove an ambulance to the entrance of Red Cross headquarters and detonated its arsenal. At least 12 people were killed, including two Red Cross guards, nine Iraqi civilians and the bomber himself." Gassmann argues that humanitarian community is no longer regarded as independent and neutral due to involvement of the military and government entities in aid work. He describes the evolution of international human rights law and provides a history of humanitarian aid and protocols from the Cold War to the Iraq War
Generación de sismogramas sintéticos a partir de la ecuación de sustitución de fluidos de gassmann.
No full textEste artículo presenta la aplicación de la ecuación de Gassmann para generar sismogramas sintéticos y la diferencia entre sismogramas cuando cambia alguna de las propiedades del yacimiento. La ecuación de Gassmann es ampliamente usada en la industria del petróleo para modelar los efectos del tipo de fluido y las propiedades del fluido y de la roca sobre respuesta sísmica. La ecuación de Gassmann también tiene en cuenta el cambio en el estado de esfuerzos por medio del modulo total de la roca seca, el cual es función del esfuerzo efectivo. Los sismogramas obtenidos se asemejan a los registros sísmicos procesados. Es decir, a los sismogramas obtenidos después de llevar a cabo la migración de las trazas y de realizar la convolución de la serie de coeficientes de reflexión con una ondita tipo Ricker de fase cero
Gassmann Equivalence and Decompositions of Jacobians
No full textThis thesis deals with the concept of Gassmann equivalence and its application in obtaining isogenous and isomorphic products of Jacobians of algebraic curves.
We study Gassmann equivalent G-sets with a particular emphasis on rationally, locally integral and integrally Gassmann equivalent G-sets. We develop MAGMA functions that verify the only known example of transitive integral Gassmann equivalent G-sets due to Leonard L. Scott and could potentially be used to obtain new intransitive examples.
Our main results generalize theorems of D. Prasad and C. S. Rajan, D. Prasad and D. Arapura et al. In particular, we show that if C is an algebraic curve, G <= Aut(C) a finite group and X,Y rationally Gassmann equivalent G-sets then the Jacobians J[(C x X)/G] and J[(C x Y)/G] are isogenous. Moreover, if instead the G-sets X,Y are integrally Gassmann equivalent the above isogeny becomes an isomorphism
Idiocnemis lakekamuensis Gassmann & Richards 2019, sp. nov.
No full textIdiocnemis lakekamuensis sp. nov. (Figs 1, 3, 5, 9, 11, 14, 16–17, 20–21, 24 –25, 28) urn:lsid:zoobank.org:act: E6CCE2B9-ECA7-4445-B1CE-3 D74038 C3370 Holotype. ♂ Papua New Guinea, Gulf Province, Lakekamu Basin: 1 km south of Ivimka Camp (Camp coordinates: 146 ° 29.761'E, 7 ° 44.117'S, ~ 120 m a.s.l.), adjacent to seepage, 24.xi.1996 (field envelope no. 21(1)) (SAMA 07-001510). Deposited in the South Australian Museum. Paratypes. Papua New Guinea, Gulf Province, Lakekamu Basin. All specimens leg. S.J. Richards, collected from within ~ 1.5 km SSW of the following coordinates: 146 ° 29.761'E, 7 ° 44.117'S, at altitudes between 100–120 m a.s.l.: 1♂, ‘ 1 km transect’, south of Ivimka Camp, in forest, 22.xi.1996, field envelope no. 153 (ZFMK ODO 2018 / 1); 1♂, ridge trail, beside river, sitting on dry stick, 22.xi.1996, field no. 168 (SAMA 07-001511; 1♂, Ivimka Camp, 29.xi.1996, field no. 142 (SAMA 07-001512); 2♂♂, 1.5 km south of Ivimka Camp, 27.xi.1996, field no. 148 (SAMA 07-001513 – 4); 1♂, 500 m south of Ivimka Camp, perched in shade, 18.xi.1996, field no. 188 (RMNH); 1♀, approx. 500 m south of Ivimka Camp, on Bulldog Track, 20.xi.1996, field no. 145 (SAMA 07- 001515); 1♀, Bulldog Track, 1 km south to Ivimka Camp, 17.xi.1996, field no. 149 (SAMA 07-001516); 1♂, 1♀, site #4, garden, in flight near stream, 29.xi.1996, field no. 141 (SAMA 07-001517 – 18); 1♂, trickle along 1 km transect nr. Ivimka Camp, 24.xi.1996, [apps. lacking], field no. 167 (SAMA 07-001519); 1♂, Ivimka Camp, 24.xi.1996, field no. 21(2) (SAMA 07-001520); 1♂, Ivimka Camp, 29.xi.1996, field no. 184 (SAMA 07-001521); 1♂, 500 m southeast of Ivimka Camp, 16.xi.1996, field no. 156 (SAMA 07-001522); 1♂, Ivimka Camp, 27.xi.1996, field no.147 (SAMA 07-001523). Etymology. The species is named after the Lakekamu Basin in Papua New Guinea’s Gulf Province, the only location from where it has been recorded. Description of the holotype. Head. Labium dirty yellow, with median incision roughly arc-shaped. Labrum yellow-orange. Genae dark brown laterally, dirty yellow ventrally. Anteclypeus medium to dark brown; postclypeus brown-black. Frons and vertex, including antennal sockets, purple. Vertical black marking small, confined to area between ocelli, medially only slightly divided, posteriorly diverging, continuing laterally on occipital ridge from where it connects to black coloration of rear of head (Figs 1, 3). Thorax. Prothorax with median lobe only slightly convex in lateral view; posterior lobe roughly subrectangular in outline, posterior edge very slightly rounded; dorsum of prothorax black, diffusely limited against a yellow lateral area which extends onto mesostigmal plates; pleura with lower half black, except for a diffuse subtriangular intrusion originating from lateral bright marking which covers upper half of pleura. Synthorax (Fig. 5) with antehumeral stripe covering almost entire mesepisternum, dorsal carina marked with black; antehumeral stripe yellow-brown, with remnants of purple (probably original coloration). Metepisternum with posterior three-fourths covered by a purple bar which either completely (left side), or nearly (right side), encircles a semi-oval black spot in its middle, the latter forming a narrow connection to posterior part of black mesepisternal marking (on left side); anterior fourth of metepisternum dark black, distinctly limited against purple marking. Metepimeron with anterior part black except for a bright yellow stripe traversing its lower half horizontally and, posterior to the latter, a medium brown stripe which is somewhat bulged out posteriorly. Legs yellow-orange, joints and adjacent areas darkened. Underside of synthorax pale yellow, with a pair of black stripes. Wings. Hyaline. Arc inserting at or slightly distal (right HW) to Sn. R4 distal to Sn, less distinctly so in forewings. Pt rhombic, medium to dark brown. FW with 17 Px, HW with 15 Px. Abdomen. Ground colour medium to dark brown, with bright markings as follows (Fig. 1): S1 with a roughly half-circular dorsal purple marking, S2 with a sub-quadrangular but posteriorly widened purple marking, S3 with a yellow-orange basal dorsal spot and a subdistal ventral bright marking of same colour; S4 to 5 with bright markings similar to those in S3 but less distinct. S6 to 7 with no pale markings except for a very weak and diffuse yellow ventro-basal marking on S6. Slightly more than posterior dorsal half of S8 as well as entire dorsal surface of S9 with a greyish-brown (probably originally purple) marking, its corners rounded, anterior margin rather straight. Superior appendage with small subbasal process, apically rounded, and a subdistal almost finger-shaped subacute process which is longer than subbasal one (Figs 9, 11). Colour of appendages dark brown, inner tips pale yellow. Measurements holotype (mm). FW 21.5, HW 20.0; abdomen including appendages 31.5. Variation in males. Generally similar to the holotype. The metepisternal black spot within the purple bar can be either irregular or almost perfectly rectangular. In two specimens it is entirely enclosed by the bright mesepimeral marking on both sides of the synthorax. Measurements (mm). FW 20.0–22.5, HW 18.5–21.0 (n = 13); abdomen including appendages 29.5–33.5 (n = 9). Female (paratypes). Head. Labrum, genae and frons dirty-yellow, ante- and postclypeus intermingled with brown. Antennal segments dirty-yellow to orange-brown. Diffuse black vertical marking extends as a broad stripe between eyes, intermingled with some yellow around ocelli and antennae, continuing posteriorly in two black lines lateral to an orange stripe marking occipital ridge. In one specimen, black marking reduced to traces of black with largest portion of black centred around ocelli. Two pale turquoise subtriangular postocular spots present (original coloration probably faded) (Fig. 14). Rear of head yellow. Thorax. Prothorax with pronotum dark bluish-black, median pronotal lobe with a pair of diffuse black spots close to border with anterior lobe (Fig. 16). Posterior pronotal lobe subrectangular, posterior edge only very slightly bulged out medially (Figs 17, 20). Synthorax with colour pattern similar to male, but far less distinct. Mesepisternum with a diffuse pale yellow marking adjacent to anterior third of humeral suture and a weak yellow marking well before the suture’s posterior end; mesepisternum otherwise diffuse brownish, lacking clearly recognizable antehumeral stripes. Mesepimeron with anterior part black as in male, but with diffuse yellow markings at the areas where the male has its grey-purple markings. Metepisternum and metepimeron as in male, but less distinct. Wings. Pt asymmetric, anterior side distinctly longer than posterior side. Otherwise as in male. FW with 16–17 Px, HW with 13–14 Px. Abdomen. Ground colour black, with light markings as follows. S1 with pair of diffuse pale turquoise spots covering posterior two-third of dorsal surface, separated from each other except for a thin connection along border of S1 and S2. S2 with a pair of elongate pale yellow dorsal spots each roughly shaped as an asymmetric triangle. S3–7 dorsally with a distinct basal pale yellow spot and a smaller subdistal spot of same colour, both losing intensity towards posterior segments. S8–9 with a pair of large diffuse but (except for the teneral specimen from Bulldog Track [field no. 149]) distinctly separate pale yellow spots. S10 with a confluent pair of diffuse pale yellow spots, covering roughly posterior half of dorsal surface of that segment, isolating a black triangular marking on its anterior dorsal half. Cerci pale yellow (Figs 24, 25). Upper lateral part of valvae and tergite of S 8 pale yellow. Measurements (mm). FW 20.0–21.5, HW 19.0–20.0 (n=3); abdomen including valvae 27.5–29.5 (n=3). Differential diagnosis. The male of this species is readily identified by the colour pattern on its head. The central black marking on the vertex, which is subquadrangular in most members of the species group, is distinctly reduced to form a rather diffuse black area filling the space between the three ocelli. In only two other species, I. dagnyae Lieftinck, 1958, and I. mertoni Ris, 1913, is the black marking occasionally reduced as well, but never to such an extent as in I. lakekamuensis sp. nov. The male of the present species is also clearly distinguished from congeners by the shape of the superior appendage (Figs 9, 11) which is characterized by a short and pointed subbasal process and a hook-like, slightly pointed subdistal process. This arrangement is distinctly different from that in most other species of the Idiocnemis bidentata group where the subbasal process is shaped as a prominent subtriangular protrusion. Only I. pruinescens has a similarly shaped superior appendage; however, in that species the subbasal process is longer than in the present species, and rather blunt (cf. Gassmann 2000). The female of I. lakekamuensis sp. nov. can be recognized by its posterior pronotal lobe which has a characteristic subrectangular shape not similarly found in any other member of the species-group. The female’s head colour pattern is similar to that in I. inaequidens Lieftinck, 1932, I. schorri Gassmann, Richards & Polhemus, 2016, and the new species described below, in having the vertex of the head nearly entirely covered in black. The extent of the black marking, however, is less than in I. inaequidens and I. schorri, with the areas around the antennae left free of black, but the black coloration is more extensive than in the new species described below. Distribution and habitats. Southern Papua New Guinea (Fig. 28). Known only from the Lakekamu Basin in Gulf Province where I. lakekamuensis sp. nov. was found perched in sunlight on low vegetation along small, clearflowing seepages and streams in lowland rainforest. A detailed description of the vegetation, climate, fauna and flora of the type locality can be found in Mack (1998).Published as part of Gassmann, Dirk & Richards, Stephen J., 2019, Two new damselflies of the genus Idiocnemis Selys from Gulf Province, Papua New Guinea (Odonata: Platycnemididae), pp. 121-140 in Zootaxa 4560 (1) on pages 122-128, DOI: 10.11646/zootaxa.4560.1.6, http://zenodo.org/record/262742
Testing Gassmann fluid substitution: sonic logs versus ultrasonic core measurements
No full textAlthough Gassmann fluid substitution is standard practice for time-lapse studies, its validity in the field environment rests upon a number of underlying assumptions. The impact of violation on the predictions of Gassmann equations can only ultimately be validated by in situ testing in real geological environments. In this paper we show a workflow that we developed to test Gassmann fluid substitution by comparing saturated P-wave moduli computed from dry core measurements against those obtained from sonic and density logs. The workflow has been tested on 43 samples taken from a 45 m turbidite reservoir from the Campos Basin, offshore Brazil. The results show good statistical agreement between the P-wave elastic moduli computed from cores using the Gassmann equation with the corresponding moduli computed from log data. This confirms that all the assumptions of the Gassmann are adequate within the measurement error and natural variability of elastic properties. These results provide further justification for using the Gassmann theory to interpret time-lapse effects in this sandstone reservoir and in similar geological formations
Macrocnemis Theischinger, Gassmann & Richards, 2015, gen. nov.
No full text<i>Macrocnemis</i> gen. nov. <p> <b>Etymology.</b> The generic name is a composite of <i>macro</i>, meaning large, and <i>cnemis</i>, meaning tibia (= shin), the basis of the name for several genera supposed to be close allies of the new genus.</p> <p> <b>Diagnostic characters.</b> Very large, long-bodied, narrow-winged damselfly, the male black with pale yellowish green thoracic and largely pale brownish-yellow abdominal markings, including two sets of lateral patches each on segments 3–7. Antennae in both sexes with relative length of first and second joints about 1:2. Posterior lobe of male pronotum upright, more or less rectangular with the top corners drawn out into tongue-like lobes. Female prothorax simple, posterior lobe laterally protruded. Ac located approximately mid-way between levels of Ax1 and Ax2. Quadrilateral widening distally, that of Fw with basal side approximately 1/2 as long as costal and distal side and 1/3 as long as posterior side, that of Hw with basal side 1/4–1/3 as long as costal side, approximately 2/3 as long as distal side and 1/5 as long as posterior side. Three cells between distal end of quadrilateral and level of subnodus. R4 arising a little before subnodus, IR3 at subnodus. Majority of cells in distal half of wings (between R2 and R4) squarish. Distal margin of wings weakly crenulated. Abdomen with S9 and S10 not significantly widened; markings largely pale brownish yellow and including two sets of lateral patches each on segments 3–7. Male with cerci almost as long as, and stouter than, the simple slender paraprocts. Ligula simple, with a pair of medium-sized apical lobes. Ovipositor valvae reaching slightly beyond end of abdomen, not surpassing cerci.</p>Published as part of <i>Theischinger, G., Gassmann, D. & Richards, S. J., 2015, Macrocnemis gracilis, a new genus and species of Idiocnemidinae (Zygoptera: Platycnemididae) from Papua New Guinea, pp. 429-436 in Zootaxa 3990 (3)</i> on page 430, DOI: 10.11646/zootaxa.3990.3.7, <a href="http://zenodo.org/record/245965">http://zenodo.org/record/245965</a>
Examen Alchymisticum : quo, ceu Lydio lapide, Adeptus a Sophista & verus Philosophus ab Impostore dignoscuntur, institutum in gratiam Magnatum & eorum, qui, ex defectu multae lectionis & Vulcanicae experientiae, punctum Chymicum plenarie non intelligunt ...
No full textAuthore Pantaleone, Hermeticae Sophiae AdeptoPantaleon [Pseud.] s. Gassmann, Fran
On Involutions With Many Fixed Points in Gassmann Triples
No full textWe show that in a non-trivial Gassmann triple (G,H,H\u27) of index n there does not exist an involution t in G such that the value of the permutation charactger on t is n-2. In addition we describe a GAP program designed to search for examples of Gassmann triples and give a brief summary of the results of this search
On the Order of a Group Containing Nontrivial Gassmann Equivalent Subgroups
No full textUsing a result of de Smit and Lenstra, we prove that the order of a group containing nontrivial Gassmann equivalent subgroups must be divisible by at least five primes, not necessarily distinct. We then investigate the existence of Gassmann equivalent subgroups in groups with order divisible by exactly five primes
Sonatas - Mus. Hs. 161 : fl, vl, vla; A; HilG 385 GroT 3342-A
No full textFlorian Leopold GaßmannQuelle: manuscript. - Ursprüngliche Besetzung für fl, vl, b (nach HilG). - Auf dem Titelblatt rechts oben (in Blei, durchgestrichen): "75"[title page, vl:] SONATA Ex A: | Flauto Traverso | Violino | Alta Viola | Del: Sige: Gassmann | [incipit: fl
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