5,646 research outputs found
Cryptodacus bernardoi Rodriguez & Rodriguez, new species
No full textCryptodacus bernardoi Rodriguez & Rodriguez, new species Figs. 1, 2, 5 –8, 14, 15, 19, 22, 23, 28 –31, 38– 42 Diagnosis. Modified couplets to the latter are provided to include C. bernardoi. It differs from all other species of Cryptodacus in the strongly sinuous shapes of the apical section of vein R 4 + 5 and crossvein dm-m. It differs from all other species except C. obliquus Hendel in lacking brown markings on the face; from all other species except C. trinotatus by the form of the sublateral postsutural vitta on the scutum, which is almost complete, but interrupted anterior to the intra-alar seta; and from other species except C. tau (Foote) by the entirely yellow abdominal syntergite 1 + 2 (Figs. 22, 23). Other useful diagnostic characters include: gena (Figs. 5, 6,) entirely yellow; posterior side of head yellow except lateral occipital sclerite with elongate brown spot; scutellum with base brown, brown area extended to basal scutellar seta; wing (Fig. 19) cell dm with basal and apical hyaline areas, discal band covering posterior part of crossvein dm-m, middle of dm-m without brown border; abdominal tergites 3–4 with broad brown bands, that on tergite 5 sometimes narrowly divided into 3 parts; oviscape yellow (Figs. 1, 20); aculeus tip with large serrations (Figs. 28–30). Description. Length 4.8 –5.0 mm. Mesonotum length 1.5–1.7 mm. Wing length 3.2–3.5 mm, width 1.3–1.5 mm, length/width ratio: 2.3. Measurements made on holotype female and one paratype male. Head (Figs. 5–8): Mostly pale yellow. Ocellar tubercle brown. Orbital plate with irregular brown stripe. Frons with pair of large dark brown spots aligned with and including base of middle frontal seta. 3 frontal setae; 2 orbital setae, well separated, distance between them 2.3–2.6 times distance from anterior seta to eye margin. Ocellar setae weak, 1.5 –2.0 times length of ocellar tubercle. Lunule entirely dark brown. Face entirely pale yellow, without brown spots; ventral margin strongly arched; gena and postgena entirely pale yellow. Posterior side of head entirely pale yellow except lateral occipital sclerite with elongate brown spot. Clypeus, prementum and palpus entirely yellow. Antenna with scape and pedicel yellow, first flagellomere dark yellow except moderate brown on apex, elongate, 4.5 –5.0 times as long as wide, apex flattened, in lateral view rounded. Arista short pubescent on distal half. Thorax (Figs. 14, 15): Mostly dark brown to black, with following whitish markings: postpronotal lobe and presutural lateral margin of scutum, connected to band on transverse suture; band on transverse suture (interrupted medially), extended across posterior part of notopleuron and posterior margin of anepisternum, almost reaching katepisternum; elongate spot on dorsal margin of katepisternum, not extending to katepisternal seta; single medial and paired sublateral postsutural vittae on scutum, medial vitta short, extended anteriorly almost to level of transverse suture, and posteriorly to midway between levels of acrostichal and dorsocentral setae, lateral vitta connected to band on transverse suture, extending almost to level of postalar seta but not reaching intra-alar seta; rectangular area posterior and lateral to intra-alar seta; and scutellum except base, brown part extending to and including base of basal scutellar seta. Scutum entirely microtrichose. Chaetotaxy normal for genus, postpronotal, 2 notopleural, 1 anepisternal, anepimeral, katepisternal, postsutural supra-alar, intra-alar, postalar, dorsocentral, acrostichal, and 2 scutellar setae well developed. Presutural supra-alar seta relatively small, half to two-thirds size of postsutural supra-alar seta. Dorsocentral seta aligned one-half to two-thirds distance from postsutural supra-alar seta to postalar seta. Legs mostly pale yellow, mid and hind coxae with small lateral brown areas, fore and mid tibiae pale brown, hind tibia dark brown, all tarsi pale brown. Wing (Fig. 19): With 4 bands: subbasal band, entirely brown, extended from cells bc and c to midlength of vein CuA+CuP, covering base of cell br, all of cells bm and bcu, and base of cell m 4 (except bordering fold); discal band, connected to subbasal band in cell c, curved posteriorly and extended to posterior wing margin distally in cell m 4, covering cell r 1 posterior to pterostigma, base of cell r 2 + 3, apex of cell br, crossvein r-m and posterior half of crossvein dm-m, dark brown anteriorly, from cell r 1 to middle of cell dm orange medially with broad, dark brown margins, posterior quarter paler brown; narrow, brown subapical band from distal part of cell r 1 to anterior end of crossvein dm-m, faint in cells r 1 and r 2 + 3; and narrow faint brown anterior apical band from distal part of cell r 2 + 3 to apex of vein M 1. Vein M 4 very narrowly bordered by brown between subbasal and discal bands. Cell dm with anterior apical corner hyaline. Crossvein r-m at 0.71 distance from bm-m to dm-m, entirely covered by dark brown distal margin of discal band. Crossvein dm-m and apical section of vein R 4 + 5 sinuous. Abdomen (female, Figs. 1, 22, male, Figs. 2, 23): Predominantly yellow, including all of syntergite 1 + 2. Tergite 3 with broad dark brown band. Tergite 4 and female tergite 5 with broad dark brown band or series of narrowly separated rectangular marks. Male tergite 5 laterally with paired ovoid brown marks, longer than wide, and medially with much smaller, inverted U-shaped brown mark or pair of brown spots. Female tergite 6 laterally with paired rectangular brown mark, medially usually with two small brown spots. Tergites with sparse black setulae. Female terminalia (Figs. 22, 28– 31): oviscape pale yellow, 0.89–0.92 mm long (n= 2). Aculeus (Fig. 28) 0.60 mm long, tip (Figs. 29, 30) 0.10 mm long, with apical 0.04 mm triangular and serrate, 0.05 mm wide, with 6–9 teeth on each side. Two spermathecae (Fig. 31) subcylindrical, with helical surface texture and elongate base. Male terminalia (Figs. 38–42): epandrium in lateral view wider than long, dorsally dark brown with black setulae, ventrally pale brown. Lateral surstylus in lateral view 3.5 times longer than wide, with glabrous, slightly curved elongated acute apex and distinct anteromedial lobe. Medial surstylus elongate two-thirds as long as lateral surstylus. Proctiger ovoid, entirely membranous, with sparse minute brown setulae. Distiphallus (Figs. 39, 41) moderately long and slender in ventral and lateral views, apex of internal tube bilobed. Type data. Holotype ♀ (IAvH), COLOMBIA: Cundinamarca: Anolaima, Vereda Santo Domingo, finca Villa Mariana [4.80171 °N 74.47542 °W], 1532 m, multilure trap, 3 Sep 2015, P. A. Rodriguez, A. L. Norrbom. Paratypes: COLOMBIA: Cundinamarca: Anolaima, Vereda Santo Domingo, finca Villa Mariana, 1532 m, multilure trap, 3 Sep 2015, P. A. Rodriguez, A. L. Norrbom, 1 ♂ (USNM); same locality, multilure trap, 21 Sep 2015, P. A. Rodriguez, 2 ♀ (ICAMF 00000044); same, multilure trap, 28 Sep 2015, P. A. Rodriguez, 2 ♀ (FSCA); same locality, reared from fruits of Phoradendron sp. near piperoides (Kunth) Trel., collected 13 Sep 2015, emerged 1 Oct 2015, P. A. Rodriguez, 1 ♂ 2 ♀ (USNM). Guaduas, Vereda el Raisal, predio el Cajón km 39 vía Bogotá-Guaduas [5 º07’09”N 74 º 57 ’02”W], 1421 m, McPhail trap 18, 22 Aug 2014, E. Quiroga, 1 ♂ 1 ♀ (ICAMF 00000045). Distribution. Cryptodacus bernardoi is known only from Colombia in Cundinamarca department in the municipios of Anolaima and Guaduas at middle altitudes on the west side of the eastern cordillera. Host plant. Three of the paratypes were reared from tiny fruits of Phoradendron sp. near piperoides (Kunth) Trel. (Figs. 43, 44), which was found parasitizing the upper part of a Psidium guajava L. shrub. This host plant is locally known by the common names “muérdago”, “matapalo”, “injerto” and “pajarito”. Phoradendron is variously classified in the Santalaceae or Viscaceae. The only previous host data for Cryptodacus was the single record of C. silvai Lima from fruit of “herva de passarinho” (Loranthus sp.) from southern Brazil (Lima 1947). The Loranthaceae, Santalaceae (and Viscaceae, when recognized as distinct from Santalaceae) belong to the order Santalales, many of which are parasitic plants. Etymology. This species is named for José Bernardo Rodríguez, father of the senior author. Comments. This species runs with difficulty in the keys of Norrbom (1994) and Norrbom & Korytkowski (2008). C. bernardoi may be most closely related to C. lopezi Norrbom, which has a similar aculeus, or it may belong to a clade along with that species and C. tau and trinotatus. The abdominal pattern is intermediate between those species, which have a distinct medial brown vitta or pair of vittae bordered by white or yellow sublateral areas on at least tergite 5 and female tergite 6, and the predominantly brown pattern in other species. In C. bernardoi the bands on tergites 4–5 in the male and 5–6 in the female may be interrupted. These four species also have the head mostly or entirely yellow posteriorly. The males were described only for C. bernardoi, C. obliquus, C. parkeri and C. tau.Published as part of Rodriguez, Pedro Alexander, Rodriguez, Erick J., Norrbom, Allen L. & Arévalo, Emilio, 2016, A new species and new records of Cryptodacus (Diptera: Tephritidae) from Colombia, Bolivia and Peru, pp. 276-290 in Zootaxa 4111 (3) on pages 277-279, DOI: 10.11646/zootaxa.4111.3.5, http://zenodo.org/record/26487
Radiopharmaceuticals as modern metal complexes
No full textRADIOPHARMACEUTICALS AS MODERN METAL COMPLEXES
Chelation is a chemical process in which a substance is used to bind molecules, such as metals or minerals, and hold them tightly so that they can be removed from a system, such as the body. In medicine, chelation has been scientifically proven to rid the body of excess or toxic metals: a person who has lead poisoning may be given chelation therapy in order to bind and remove excess lead from the body before it can cause damage.
In the case of EDTA chelation therapy, the substance that binds and removes metals and minerals is EDTA. EDTA was first used in the 1940s for the treatment of heavy metal poisoning to remove heavy metals and minerals from the blood, such as lead, iron, copper, and calcium, and is approved by the U.S. Food and Drug Administration (FDA) for use in treating lead poisoning and toxicity from other heavy metals. Chelation therapy will remove excessive levels of 13 elements from the body -- lead, mercury, nickel, cadmium, and aluminum -- all toxic elements. It also will remove some good minerals from your body as well -- such as chromium, copper, iron, magnesium, manganese, and calcium. It is important to take mineral supplements to counteract this while on chelation therapy.
The EDTA is eliminated from the body, 95 per cent via the kidneys and 5 per cent via the bile, along with the toxic metals and free ionic calcium, which it has locked on to in its transit through the circulatory system.
Although it is not approved by the FDA to treat CAD (Coronary Artery Disease or angina pectoris), some physicians and alternative medicine practitioners have recommended EDTA chelation as a way to treat this disorder. Chelation with EDTA has a low occurrence of side effects: the most common one is a burning sensation experienced at the site where the EDTA is delivered into the veins. Rare side effects can include fever, hypotension (a sudden drop in blood pressure), hypocalcemia (abnormally low calcium levels in the blood), headache, nausea, vomiting, and bone marrow depression.
Several theories have been suggested for this form of CAD treatment. One theory suggests that EDTA chelation might work by directly removing calcium found in fatty plaques that block the arteries, causing the plaques to break up. Another is that the process of chelation may stimulate the release of a hormone that in turn causes calcium to be removed from the plaques or causes a lowering of cholesterol levels. A third theory is that EDTA chelation therapy may work by reducing the damaging effects of oxygen ions (oxidative stress) on the walls of the blood vessels. Reducing oxidative stress could reduce inflammation in the arteries and improve blood vessel function. None of these theories has been well tested in scientific studies. There is a lack of adequate prior research to verify EDTA chelation therapy's safety and effectiveness for CAD.
Ethylene-diamine-tetra-acetic acid is a chelating agent for electrically
charged metal atoms, and incorporating them into its structure.
It is also an antibacterial agent and is widely used as a preservative.
EDTA has a particular affinity for heavy and toxic metals and was
approved by the Federal Food and Drug Administration as a treatment
for lead poisoning in 1959. Unexpectedly, lead-poisoning victims who also suffered symptoms of arteriosclerosis reported that chelation reduced their angina and leg pain and increased their endurance. Because of these unforeseen benefits, doctors began studying the effects of EDTA on patients with arteriosclerosis.
Some chelationists believe that the therapy works because EDTA helps unclog the circulatory system by drawing calcium from plaque or that all of EDTA’s various effects stem from its proven action, as a lead chelator. Others say the EDTA helps reduce the effects of free radicals—highly reactive atomic structures lacking one electron that contribute to the process of aging.
Chitosan is a ..
A network meta-analysis of the impact of feed-grade urea and slow-release urea on lactating dairy cattle metabolism and production.
No full textA network meta-analysis was conducted to determine the effects of feeding feed-grade urea (FGU) or slow-release urea (SRU) as
replacement for plant protein (PP) in high-producing dairy cattle diets. Research papers were selected (n = 16) from experiments published
between 2006 and 2019 based on the following criteria: dairy breed, detailed description of the isonitrogenous diets fed, provision of FGU
or SRU, in vivo trials involving high yielding cows and results that included at least milk yield and composition; data on nutrient intake,
digestibility, ruminal fermentation profile, and N utilization were also considered. Most studies compared 2 treatments only, and a network
meta-analysis approach was adopted to compare the effects among PP, FGU and SRU. Data were analyzed through a generalized linear
mixed model network meta-analysis with SAS/STAT (SAS Institute Inc., Cary, NC, USA), using treatment as a fixed effect and the study
as a random effect. Differences were declared at P < 0.05. Average diet contained (DM basis) 1.64 ± 0.09 Mcal NEL, 16.8 ± 1.05% CP, 31.9 ± 3.85% NDF, and 22.1 ± 3.76% starch. The average supply of urea was 167 g/cow/d. The FGU and SRU did not affect nutrient intake and N
utilization. The SRU reduced total-tract apparent digestibility of DM (69.6 vs 69.7%, respectively) and increased the proportion of acetate
(62.3 vs 62.2 mol/100mol, respectively) in the rumen compared with FGU; and increased ruminal ammonia concentration compared with
PP (7.53 vs 6.63 mg/dL, respectively). However, all these differences were numerically small. The DMI (23.1 ± 3.00 kg), milk yield (34.4 ±
6.0 L/d), and milk fat (3.59 ± 4.3%) and protein (3.10 ± 2.2%) content were not affected by treatments. However, cows supplemented with FGU and SRU had lower lactose concentration compared with PP (average of 47.1 vs 47.4 g/kg, respectively). Despite the frequent use of urea in dairy diets, only a limited number of papers met the criteria adopted in the present meta-analysis. Neither the use of FGU or SRU modified milk yield nor composition. Thus, feeding FGU to high-producing dairy cows can be justified by its lower cost in comparison to SRU and PP
La oralidad fingida en La profezia dell'armadillo de Zerocalcare: reflexiones en torno a la traducción de la variación lingüística
No full textThis study examines the graphic novel La profezia dell’armadillo (The Armadillo Prophecy, 2011) by Zerocalcare, an autobiographical comic -the author describes a personal journey from his early childhood years to the present day– which occupies a central position in his narrative career. This novel, moreover, provides an exceptional gateway into Zerocalcare’s storytelling and his media or transmedia ecosystem. The article is organized by first reviewing the concept of feigned orality. Thereafter, the notion of transmedia storytelling is presented and illustrates the author's biographical and creative trajectory. Based on the words of the author himself –“scrivo come parlo” (I write how I speak, 2015)– we identify the idiolect of the main characters, a mixture of standard Italian and expressions in Romanesco dialect, and analyse the Spanish translation. Finally, we draw some conclusions on the translation method used to render the Romanesco dialect, based on a comparison of some original and translated segments from the novel
2D magnetic domain wall ratchet: The limit of submicrometric holes
No full textThe financial support of the Spanish MINECO MAT2014-53921-R,FIS2013-45469 and FIS2016-76058 (AEI) and the Aragonese DGAIMANA E34 and CAMRADS E69, all of them cofunded by Fondo SocialEuropeo and European Union FEDER funds, is acknowledged. A. H-Racknowledges the support from FCT of Portugal (Grant SFRH/BPD/90471/2012).Herrero-Albillos, J., Castán-Guerrero, C., Valdés-Bango, F., Bartolomé, J., Bartolomé, F., Kronast, F., Hierro-Rodriguez, A., Álvarez Prado, L.M., Martín, J.I., Vélez, M., Alameda, J.M., Sesé, J., García, L.M
Influence of farm diversity on nitrogen and greenhouse gas emission sources from key European dairy cattle systems: A step towards emission mitigation and nutrient circularity
No full textEuropean dairy cattle production systems (DPS) are facing multiple challenges that threaten their social, economic, and environmental sustainability. In this context, it is crucial to implement options to promote the reconnection between crop and livestock systems as a way to reduce emissions and enhance nutrient circularity. However, given the sector's diversity, the successful implementation of these options lacks an evaluation framework that jointly considers the climatic conditions, farm characteristics, manure management and mineral fertilisation practices of DPS across Europe.This study was financially supported by the German Federal Ministry of Food and Agriculture (BMEL) through the Federal Office for Agriculture and Food (BLE) and other National Funding Agencies through the “MilKey” project (grant number 2819ERA08A), funded under the Joint Call 2018 ERA-GAS (Grant N° 696356), SusAn (Grant N° 696231) and ICT-AGRI 2 (Grant N° 618123) on “Novel technologies, solutions and systems to reduce the greenhouse gas emissions in animal production systems”, and the “DairyMix” project (grant number 2822ERA15A) under the Joint Call of the Cofund ERA-Nets SusCrop (Grant N° 771134), FACCE ERA-GAS (Grant N° 696356), ICT-AGRI-FOOD (Grant N°862665) and SusAn (Grant N° 696231). Agustin del Prado also receives financial support through the CircAgric-GHG project funded by the 2nd 2021 call “Programación conjunta internacional 2021” MCIN/AEI/10.13039/501100011033 and Next Generation EU/PRTR (ref. no. PCI2021-122048-2A). BC3-Research is supported by the Spanish Government through María de Maeztu Excellence 2023–2026 (ref. no. CEX2021-001201-M, funded by MCIN/AEI/10.13039/501100011033 and by the Basque Government through the BERC 2022–2024 Programme. Lorraine Balaine also acknowledges funding from the Irish Department of Agriculture, Food and the Marine [grant number 2019EN201]. We thank Elisabeth Castellan, Anna Sandrucci, and Serena Bonizzi for their help in the data collection process. In addition, the first author would like to thank Lander Rodriguez Idiazabal (Basque Center for Applied Mathematics) for his contribution to the conceptualisation of the statistical analysis
CUBAVANA : N °2
No full textComprend : TOMCAT MAMBO / PEREZ PRADO - SKOKIAAN : Mambo / MSARURGWA ; PEREZ PRADO et son Orchestre - FIESTA TROPICAL : Mambo / R. MARQUEZ - MAMBO IN BRASS / MANSI, CASTILLO, MAFFIA ; AL ROMERO et son Orchestre - ADELE : Mambo / O. DEL PORTAL ; TITO RODRIGUEZ et son Orchestre - LARE, LARE : Mambo / M. SANCHEZ - TUXEDO JUNCTION : Mambo / FEYNE, HAWKINS ; TITO PUENTE et son Orchestre - SWAY : Mambo / P.B. RUIS, N. GIMBEL ; NORO MORALESBnF-Partenariats, Collection sonore - BelieveContient une table des matière
El ser racializado: el concepto de raza en las experiencias autobiográficas de Richard Rodriguez y Kevin R. Johnson
No full textabstract: Race is a complex system founded on social ideologies that categorize and evaluate human beings into different groups based on their visible characteristics (e.g., skin color) that, according to this notion of race, indicate a person's personal traits (e.g., intelligence). The concept of race has been an integral part of American society since the ratification of the United States Constitution in the late 18th century. Early on, the practice of race within American society established one particular group as the norm: the White Anglo-Saxon Protestant. By the late 19th and early 20th centuries, the distinctions among racial groups essentially came down to "white" and "nonwhite." Consequently, certain social inequalities were bestowed upon those groups that did not fit the model of the dominant "white" group. Autobiographies, especially those from marginalized groups, can serve as an important source of these social disparities since the author is able to recount their own social experiences vis-à-vis racial practices within society. With this in mind, this thesis analyses the concept of race in relation to the personal experiences of two authors through their respective autobiographies: Hunger of Memory: The Education of Richard Rodriguez (1982) by Richard Rodriguez and How Did You Get to Be Mexican?: A White/Brown Man's Search for Identity (1999) by Kevin R. Johnson. The critical work of Paula M. L. Moya, Linda Martín Alcoff, Hazel Rose Markus, George M. Fredrickson, Genaro M. Padilla and others are used as the theoretical framework in the literary analysis of these authors' texts. In summary, the results of this study demonstrate the concept of race as a salient aspect in regards to the ideological formation of each respective author.Dissertation/ThesisM.A. Spanish 201
The long-wavelength view of GG Tau A: rocks in the ring world
No full textWe present the first detection of GG Tau A at centimetre wavelengths, made with the Arcminute Microkelvin Imager Large Array at a frequency of 16 GHz (λ = 1.8 cm). The source is detected at >6 σrms with an integrated flux density of S16GHz = 249 ± 45 µJy. We use these new centimetre-wave data, in conjunction with additional measurements compiled from the literature, to investigate the long-wavelength tail of the dust emission from this unusual protoplanetary system. We use an MCMC-based method to determine maximum likelihood parameters for a simple parametric spectral model and consider the opacity and mass of the dust contributing to the microwave emission. We derive a dust mass of Md ~ 0.1 Msun, constrain the dimensions of the emitting region and find that the opacity index at λ > 7 mm is less than unity, implying a contribution to the dust population from grains exceeding ~4 cm in size. We suggest that this indicates coagulation within the GG Tau A system has proceeded to the point where dust grains have grown to the size of small rocks with dimensions of a few centimetres. Considering the relatively young age of the GG Tau association in combination with the low derived disc mass, we suggest that this system may provide a useful test case for rapid core accretion planet formation models
Research compendium for "Niche shifts after long-distance dispersal events in bipolar sedges (Carex, Cyperaceae)"
No full text<p>Research compendium (code and data) used for the species distribution modelling analyses in the following journal publication:</p>
<p>Villaverde T, González-Moreno P, Rodríguez-Sánchez F & Escudero M. (2017) Niche shifts after long-distance dispersal events in bipolar sedges (<em>Carex</em>, Cyperaceae). <em>American Journal of Botany</em>.</p>
<p>Compendium URL: https://doi.org/10.5281/zenodo.896787</p>
<p>Author: Francisco Rodriguez-Sanchez ([email protected])</p>
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