200,965 research outputs found
FIGURE 5 in Myoxanthus anancusiensis (Orchidaceae: Pleurothallidinae), a new species from the inter-Andean valley of Huancavelica, Peru
No full textFIGURE 5. Distribution map of Myoxanthus anancusiensis H.R.Quispe, R.D.Cuadros & F.H.Calderon and the most similar species M. serripetalus and M. oliviae in Peru. The red asterisk indicates a record that needs to be corroborated.Published as part of <i>Cuadros-Rojas, Robinson Daniel, Quispe-Melgar, Harold Rusbelth, Calderon-Quispe, Fernando H. & Singer, Rodrigo B., 2023, Myoxanthus anancusiensis (Orchidaceae: Pleurothallidinae), a new species from the inter-Andean valley of Huancavelica, Peru, pp. 155-164 in Phytotaxa 622 (2)</i> on page 161, DOI: 10.11646/phytotaxa.622.2.5, <a href="http://zenodo.org/record/10147158">http://zenodo.org/record/10147158</a>
FIGURE 4 in Myoxanthus anancusiensis (Orchidaceae: Pleurothallidinae), a new species from the inter-Andean valley of Huancavelica, Peru
No full textFIGURE 4. Comparison of diagnostic floral features. A. M. anancusiensis and B. M. serripetalus. Photographs by Robinson Daniel Cuadros-Rojas (A) and Luis Enrique Egoavil (B).Published as part of <i>Cuadros-Rojas, Robinson Daniel, Quispe-Melgar, Harold Rusbelth, Calderon-Quispe, Fernando H. & Singer, Rodrigo B., 2023, Myoxanthus anancusiensis (Orchidaceae: Pleurothallidinae), a new species from the inter-Andean valley of Huancavelica, Peru, pp. 155-164 in Phytotaxa 622 (2)</i> on page 160, DOI: 10.11646/phytotaxa.622.2.5, <a href="http://zenodo.org/record/10147158">http://zenodo.org/record/10147158</a>
Genetic parameters of fiber density traits and their relationship with textile traits in alpacas
No full textContribución de autores:
Alan Cruz: Writing – original draft, Validation, Investigation, Formal analysis, Conceptualization. Edgar Quispe: Writing – review & editing, Investigation, Funding acquisition, Formal analysis. Alex Yucra: Data curation. Renzo Morante: Writing – review & editing, Data curation. Alonso Burgos: Data curation. Max David Quispe: Investigation, Funding acquisition. Juan Pablo Gutierrez: ´ Writing – review & editing, Visualization, Validation, Supervision, Methodology. Gustavo Gutierrez-Reynoso: ´ Writing – review & editing, Visualization, Validation, Funding acquisition, Conceptualization.
Contrato: N.° 451-PROINNOVATE-PIEC2-2023Genetic improvement programs for alpacas that focus on reducing fiber diameter have succeeded in enhancing fiber quality but they have also decreased fleece weight. Fiber diameter and fleece weight have an unfavorable genetic correlation, which makes it difficult to improve both traits simultaneously. This study aimed to estimate the genetic parameters of fiber density traits, and their genetic correlations with fleece weight (FW), fiber diameter (FD), density score (DS) and percentage of medullation (PM), as well as to evaluate their incorporation as selection criteria to increase fleece weight. The density traits were the number of hair ducts per mm2(HD), number of fibers per mm2 (NF) and the NF/HD ratio (RT). Fiber density traits were objectively measured by using high-resolution skin images taken from 402 Huacaya alpacas. Animal model was used to estimate genetic parameters. Pedigree (15,360 alpacas) and phenotype records for FW (11,271), DS (5,752), FD (8,763) and PM (8,763) were retrieved from the Pacomarca database. The heritability was 0.40±0.05, 0.47±0.03, 0.37±0.05, 0.34±0.02, 0.31±0.01, 0.28±0.01 and 0.16±0.01 for HD, NF, RT, DS, FD, PM and FW respectively. Favorable genetic correlations were found between NF-FW, NF-FD and DS-FW, with values of 0.36, -0.50 and 0.50, respectively. However, unfavorable genetic correlations were also found between FD-FW and PM-FW, with values of 0.35 and 0.24 respectively. NF is an appropriate selection criterion for improving fiber diameter, percentage of medullation and fleece weight simultaneously in Huacaya alpacasUniversidad Nacional Agraria La MolinaDepto. de Producción AnimalFac. de VeterinariaTRUEpu
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Dr. Glendon Swarthout
No full textHosted by Roger M. Busfield, MSU Assistant Professor of Speech and Theater, Meet the Author is designed to introduce a general audience to a contemporary author and their work through in-depth interviews. This episode features a conversation between Dr. Glendon Swarthout, prolific author and English professor at MSU, and assistant professors Sam S. Baskett and Theodore B. Strandness
Epidendrum centralense Quispe-Melgar, Llacua-Tineo & Hágsater, 2023, sp. nov.
No full text4. Epidendrum centralense E. Santiago, Hágsater, H.R.Quispe et Llacua, sp. nov. (Figure 5) Type:— PERU. Junín: Huancayo Province, Santo Domingo de Acobamba District; Callanca locality, 3950 m, humid high elevation Andean Forest, epiphyte on Polylepis canoi, collected 06 November 2021, pressed 04 December 2021, H. R. Quispe 128 (holotype: HOXA! barcode: 080097) (LCDP & photo voucher). S imilar to Epidendrum soratae but the leaves 2.0–2.5 × 1.0– 1.4 cm with the apex obtuse (vs. leaves 1.7–4.7 × 0.4– 0.8 cm with the apex sub-acute to acute), flowers green-brown with irregular red brown tinge (vs. flowers greenish yellow), the dorsal sepal oblong (vs. dorsal sepal narrowly ovate), the petals linear-oblanceolate (vs. petals linear), the column thin at the base with the cuniculus slightly inflated behind the perianth (vs. column progressively inflated at the base due to the prominent cuniculus clearly inflated on both sides of perianth), the cuniculus forming a small vesicle in pedicel (vs. cuniculus forming a prominent vesicle in pedicel), and the lip apex truncate (vs. lip with emarginate apex). (Figure 6). Description:— Epiphytic, erect to arching, monopodial, branching herb, ca. 48 cm tall. Roots 2–4 mm in diameter, from base of primary stem. Stems branching, cane-like, terete, thin; primary stem 12.5–16.5 × 0.3 cm; branches 8–16 × 0.2–0.3 cm; upper stems produced from a sub-apical internode of previous stem. Leaves 7 on primary stem, 4–6 on branches, distributed throughout stems, alternate, articulate, spreading with respect to stem, slightly arched, medium green, concolor; sheath 1.0 × 0.6–0.9 cm, tubular, striated and somewhat infundibuliform when dry; blade 2.0–2.5 × 1.0– 1.4 cm, lanceolate, obtuse, minutely apiculate, coriaceous, margin entire. Spathe lacking. Inflorescence 3.5 cm long (including flowers), apical, racemose, arching-nutant, flowers successive, densely few–flowered; peduncle 1.0– 1.2 cm long, laterally compressed, rachis slightly laterally compressed. Floral bracts 0.4–1.1 × 0.1–0.2 cm, half-length of ovary, except for lower bract which is considerably larger, narrowly triangular-lanceolate, acuminate, green with irregular red-brown dots, apex red-brown. Ovary 11 mm long, terete, thin, not inflated, slightly striated, spotted green to purple-brown. Flowers 8–12, successive, opening from base towards apex of inflorescence, resupinate, greenish brown with irregular red brown tinge, column turning yellow with age; fragrance not registered. Sepals spreading, free, apex obtuse, 3-veined, margin entire; dorsal sepal 5.6 × 2.1 mm, spatulate, apiculate, margin entire, slightly revolute; lateral sepals 6.3–6.6 × 2.7–2.9 mm, elliptic, apiculate, with a very prominent dorsal keel, margins entire, spreading. Petals 4.7–5.0 × 0.5–0.7 mm, spreading, free, linear-oblanceolate, 1-veined, margin entire, slightly revolute in basal half. Lip 3.6 × 6 mm, adnate to column, sub-entire, transversely reniform in outline, base cordate, apex obtuse, minutely emarginate, margins entire; bicallose, calli small, obovoid, parallel, 1.0 × 0.8 mm, separated by a thick mid-rib extending to apex of lip. Column 4.5 mm long, base thin, apex slightly dilated. Clinandrium-hood short, entire margin. Rostellum apical, split; viscarium semi-liquid. Lateral lobes of stigma small, occupying 1/3 length of stigmatic cavity. Cuniculus shallow, penetrating ovary just behind perianth, slightly inflated forming a short, incipient vesicle. Anther transversely ellipsoid, apex emarginate, front papillose, yellow, 4-celled. Pollinia 4, obovoid, laterally compressed; caudicles soft and granulose, twice as long as pollinia. Capsule 2.5–3.0 × 0.7–0.9 cm; pedicel 4 mm long, conical; body 1.0–1.7 × 0.7–0.9 cm, ellipsoid; apical neck 0.4–0.8 × 0.15 cm, thin. Finally, flowering time is in November. Distribution and ecology: —Known presently only from the type, from central Peru, Department of Junín, in the upper part of the locality of Callanca. Located in the eastern mountain range of the central Peruvian Andes, within a humid forest dominated by Polylepis canoi and Polylepis argentea T.Boza & H.R.Quispe (2019: 327). The environment is a typical high elevation Andean ecosystem surrounded by a matrix of grassland, lagoons and occasional snow, with the presence of other genera such as Gynoxys Cass. (1827: 455), Buddleja L. (1753a: 112), and Lupinus L. (1753b: 721), at 3950 m elevation. (Figure 7). Etymology: —The epithet name refers to the department of Junín, located in the central region of Peru, where the species has been collected. Notes: —Comparisons were made with the species of the subgroup that grow in Junín, as well as closely related species comparing with the type material of E. fruticulus Schltr. (1921: 84), E. physopus Kraenzl. (1905: 87), E. monteagudoi Hágsater & E. Santiago (2013: t. 1459), E. jose-alvarezii Hágsater, Gut.Peralta & Nauray (2015: t. 1531) and E. soratae Rchb.f. (1878b: 24) (images of type and live material at MO and USM, as well as descriptions); these species being most similar to the new species. Epidendrum fruticulus has yellow flowers, the lateral sepals red-brown, and the lip deeply 3-lobed. Epidendrum physopus has green to yellow-green flowers, the lip deeply 3- lobed. Epidendrum monteagudoi has cream colored flowers, sometimes with vinaceous spots, and the lip is shallowly 3-lobed, the mid-lobe small, widely triangular, obtuse. Epidendrum jose-alvarezii has carmine-red flowers, the lip transversely reniform, with lateral lobes dolabriform-orbicular, with the mid-lobe incipient, emarginate. Epidendrum soratae is the most similar species and is discussed in the diagnosis. Conservation Status:— DD. Data deficient. Known presently only from the type.Published as part of Quispe-Melgar, Harold Rusbelth, Llacua-Tineo, Elizabeth Santiago Ayala Yashira Stefani & Hágsater, Eric, 2023, Synopsis of the Peruvian species of Epidendrum (Orchidaceae: Laeliinae) belonging to the Scabrum group, subgroup Soratae: diversity and description of a new species, pp. 1-26 in Phytotaxa 603 (1) on pages 10-13, DOI: 10.11646/phytotaxa.603.1.1, http://zenodo.org/record/815362
Simulation of thermal plant optimization and hydraulic aspects of thermal distribution loops for large campuses
No full textFollowing an introduction, the author describes Texas A&M University and its utilities system. After that, the author presents how to construct simulation models for chilled water and heating hot water distribution systems. The simulation model was used in a $2.3 million Ross Street chilled water pipe replacement project at Texas A&M University. A second project conducted at the University of Texas at San Antonio was used as an example to demonstrate how to identify and design an optimal distribution system by using a simulation model. The author found that the minor losses of these closed loop thermal distribution systems are significantly higher than potable water distribution systems. In the second part of the report, the author presents the latest development of software called the Plant Optimization Program, which can simulate cogeneration plant operation, estimate its operation cost and provide optimized operation suggestions. The author also developed detailed simulation models for a gas turbine and heat recovery steam generator and identified significant potential savings. Finally, the author also used a steam turbine as an example to present a multi-regression method on constructing simulation models by using basic statistics and optimization algorithms. This report presents a survey of the author??s working experience at the Energy Systems Laboratory (ESL) at Texas A&M University during the period of January 2002 through March 2004. The purpose of the above work was to allow the author to become familiar with the practice of engineering. The result is that the author knows how to complete a project from start to finish and understands how both technical and nontechnical aspects of a project need to be considered in order to ensure a quality deliverable and bring a project to successful completion. This report concludes that the objectives of the internship were successfully accomplished and that the requirements for the degree of Degree of Engineering have been satisfied
Análisis de huella de carbono en la producción de cacao de sistemas agroforestales en 3 sectores del distrito de Inambari, Madre de Dios
No full textEl objetivo del presente estudio fue estimar la huella de carbono en la
producción de cacao (Theobroma cacao L.) en los sistemas agroforestales en
3 sectores del Distrito de Inambari, Departamento de Madre de Dios; para
estimar dicho estudio se tomó como muestra 3 sectores del distrito de
Inambari (Nueva Generación, Santa Rita Alta y Puerto Trujillo) y se trabajó
con 3 parcelas por cada sector a estudiar, siendo cada una de las parcelas de
diferentes socios de la cooperativa Agrobosque. Las áreas para cada parcela
de estudio fueron de 1000 m
2
(20 x 50 m), en cada área delimitada se procedió
a realizar inventario general de los sistemas agroforestales así como también
se recolectaron 4 muestras de hojarasca de cuadrantes de 0,25 m
2
(50 cm x
50 cm) por parcela para la determinación de biomasa mediante ecuaciones
alométricas y formulas, también se realizaron encuestas sobre (fertilizantes,
herbicidas, combustible, leña, carbón y gas) para la posterior determinación
de emisiones de CO
2
mediante factores de conversión específicos. Para
estimar el almacenamiento de carbono en biomasa total se trabajó con la
fracción de carbono de 0,5 y para estimar las tasas de fijación se trabajó con
la constante 3,67. En los resultados del presente estudio de investigación se
corroboró que a mayor asociación de diversas especies es más baja la
cantidad de huella de carbono, y en lo que respecta a las emisiones, el uso
de combustible, carbón y herbicida son los que presentan las emisiones más
altas por actividades antrópicas.Tesi
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