scholarly journals Asociación nodriza-protegida, diámetro y altura de cactáceas en relación a la altitud, en la quebrada huaje de la ciudad de puno, Perú

2015 ◽  
Vol 17 (3) ◽  
pp. 387
Author(s):  
Huisa Balcon Dennis Xavier
Keyword(s):  
Indirect Method ◽  
High Part ◽  
Lineal Regression ◽  
Para Determinar ◽  
Relationship Of ◽  
The Relationship ◽  
Intensive Search

<p align="center"><strong>RESUMEN</strong></p><p>El estudio se realizó durante los meses de mayo a julio del 2014, con 5 muestreos en total, siendo en la estación otoño que en esta zona se caracteriza por la ausencia de lluvias y descenso en la temperatura, estos factores hacen que los cactus modifiquen su morfología haciendo variar su diámetro y altura, los objetivos fueron: (a) Determinar la asociación nodriza-protegida de las especies encontradas y (b) Determinar la relación de la altitud con la altura y el diámetro de las cactáceas de la quebrada Huaje, se aplicó el método indirecto de búsqueda intensiva para hallar cada cactus oculto entre la espesura de <em>Stipa ichu</em> planta dominante en el área de estudio, se encontraron especies de <em>Cumulopuntia</em> <em>boliviana</em> 752indv., <em>Echinopsis</em> <em>maximiliana</em> 293indv., <em>Cumulopuntia</em> sp. 153indv. y <em>Austrocylindropuntia</em> <em>subulata</em> 25indv., la planta nodriza con mayor porcentaje fue la <em>Stipa ichu</em> 46% <em>Senecio</em> sp. 12% <em>Grindelia</em> <em>boliviana</em> 9 %, <em>Poa</em> sp. 0,005 %, se observó que en lugares rocosos y suelo arenoso se desarrollan las cactáceas, esta curiosa asociación representa un 33%, se tomaron medidas de la altura y diámetro de cada cactus encontrado realizando una prueba regresión lineal para determinar la influencia de la altitud sobre la altura del cactus dio como resultado R2=0,159, de igual forma la influencia de la altitud sobre el diámetro del cactus dio como resultado R2=0,003; se determina cierta dependencia de las plantas nodriza se concluye que la altitud (3834-3951 msnm) influye negativamente en el crecimiento de los cactus (talla, diámetro) sin embargo se encontraron más individuos en la parte alta de la quebrada.</p><p> </p><p> </p><p> </p><p align="center"><strong>ABSTRACT</strong></p><p>The study was carried out during the months of May to July of the 2014, with 5 samplings in total, being in the station autumn that is characterized by the absence of rains and descent in the temperature in this area, these factors makes that the cactus modifies its morphology making vary its diameter and height, the objectives were: (to) to Determine the nurse-protected association of the opposing species and (b) to Determine the relationship of the altitude with the height and the diameter of the cactáceas of the gulch Huaje, the indirect method of intensive search was applied to find each hidden cactus among the thickness of <em>Stipa ichu</em> it plants dominant in the study area, they were species of <em>Cumulopuntia boliviana</em> 752indv., <em>Echinopsis maximiliana</em> 293indv., <em>Cumulopuntia sp.</em> 153indv. and <em>Austrocylindropuntia subulata</em> 25indv., the plant nurse with more percentage was <em>Stipa ichu</em> 46% <em>Senecio sp</em>. 12% <em>Grindelia boliviana</em> 9%, <em>Poa sp.</em> 0,005%, it was observed that in rocky places and sandy floor the cactáceas is developed, this curious association represents 33%, they took measures of the height and diameter of each opposing cactus carrying out a test lineal regression to determine the influence of the altitude on the height of the cactus it is gave R2=0 as a result ,159, of equal it forms the influence of the altitude on the diameter of the cactus it is gave R2=0 as a result ,003; certain dependence of the plants nurse you is determined it concludes that the altitude (3834-3951 msnm) influences negatively however in the growth of the cactus (it carves, diameter) more individuals they were in the high part of the gulch.</p><p> </p>

scholarly journals Motivación de logro y lenguaje escrito en adolescentes españoles

2016 ◽  
Vol 32 (2) ◽  
pp. 466 ◽  
Author(s):  
María-José González-Valenzuela ◽  
Isaias Martín-Ruíz
Keyword(s):  
Reading Comprehension ◽  
Written Language ◽  
Written Composition ◽  
Academic Level ◽  
Thematic Progression ◽  
Study Analyse ◽  
Potential Impact ◽  
Lineal Regression ◽  
Relationship Of ◽  
The Relationship

The relationship reading and writing with cognitive-linguistic factors is analyzed for most studies, being less frequent the studies related with motivation. This study analyse the relation of the motivation and writing composition and reading comprehension, in Spanish teenagers. The sample this formed by 203 subjects of 1º (<em>ME</em>=12.4, <em>DT</em>=1.28), 2º (<em>ME</em>=13.6, <em>DT</em>=1.02) y 3º (<em>ME</em>=14.2, <em>DT</em>=1.34) of compulsory secondary education, of class media sociocultural, with normal intellectual levels and without deficits physical, psychic or sensory. The students were evaluated in motivation in terms of frequency of thoughts about performance of academics tasks. The written composition was evaluated in terms of thematic progression, semantic, morphosyntactic and metacognition. And the reading comprehension evaluated in terms of selection and organization of ideas, semantic, morphosyntactic and metacognition. The design is transversal and we realised analysis of lineal regression. The results obtained indicate that the motivation explains 17% of the written composition and between 16 and 27% of the reading comprehension, according to the academic level. The relationship of motivation and written language in this ages and their potential impact on problems in written composition and reading comprehension in adolescence is emphasized.

scholarly journals Naturaleza y dimensionalidad de la relación de las variables estilo de liderazgo y desarrollo espiritual en los pastores adventistas en Lima metropolitana - Nature and dimensionality of the relationship of leadership style and spiritual development ...

2015 ◽  
Vol 5 (2) ◽  
Author(s):  
Juan Choque Fernández
Keyword(s):  
Leadership Style ◽  
Spiritual Development ◽  
Liderazgo Transformacional ◽  
Laissez Faire ◽  
Para Determinar ◽  
Relationship Of ◽  
The Relationship

En el presente estudio se busca determinar la naturaleza y dimensionalidad de la relación de la variable constituida por el estilo de liderazgo (transformacional, transaccional y laissez faire) y la variable desarrollo espiritual (conciencia sobre Dios, aceptación realista, desilusión, grandiosidad, inestabilidad, manejo de la impresión) en los pastores adventista en Lima Metropolitana. Esta investigación es de tipo transversal y correlacional, porque se realiza en un momento determinado y estudia la correlación de la variable estilo de liderazgo. La población está conformada por 67 pastores de la Iglesia Adventista del Séptimo Día pertenecientes a las dos asociaciones de Lima (Asociación Peruana Central Norte, Asociación Peruana Central Sur). Para determinar esta relación, se utilizó la prueba de correlación canónica. Entre los resultados se encontró que existe una relación significativa entre la variable estilo de liderazgo (transformacional, transaccional y laissez faire) y la variable desarrollo espiritual (conciencia sobre Dios, aceptación realista, desilusión, grandiosidad, inestabilidad y manejo de la impresión) en los pastores adventista en Lima Metropolitana. Así mismo, de acuerdo con el coeficiente de regresión, la sub variable liderazgo transformacional muestra una correlación significativa (p=0,002) con la sub variable constituida por conciencia sobre Dios, constituyéndose ésta última en un predictor significativo positivo del tipo de liderazgo transformacional. Se concluye que existe una relación significativa entre la variable estilo de liderazgo (transformacional, transaccional y laissez faire) y la variable desarrollo espiritual (conciencia sobre Dios, aceptación realista, desilusión, grandiosidad, inestabilidad y manejo de la impresión) en los pastores adventista en Lima Metropolitana.

The relationship of the scleractinian corals to the rugose corals

Paleobiology ◽  
1980 ◽  
Vol 6 (02) ◽  
pp. 146-160 ◽  
Author(s):  
William A. Oliver
Keyword(s):  
Critical Points ◽  
Scleractinian Corals ◽  
Convincing Evidence ◽  
Early Triassic ◽  
Rugose Corals ◽  
History Of ◽  
The Subject ◽  
Relationship Of ◽  
The Relationship ◽  
Biologic Factors

The Mesozoic-Cenozoic coral Order Scleractinia has been suggested to have originated or evolved (1) by direct descent from the Paleozoic Order Rugosa or (2) by the development of a skeleton in members of one of the anemone groups that probably have existed throughout Phanerozoic time. In spite of much work on the subject, advocates of the direct descent hypothesis have failed to find convincing evidence of this relationship. Critical points are:(1) Rugosan septal insertion is serial; Scleractinian insertion is cyclic; no intermediate stages have been demonstrated. Apparent intermediates are Scleractinia having bilateral cyclic insertion or teratological Rugosa.(2) There is convincing evidence that the skeletons of many Rugosa were calcitic and none are known to be or to have been aragonitic. In contrast, the skeletons of all living Scleractinia are aragonitic and there is evidence that fossil Scleractinia were aragonitic also. The mineralogic difference is almost certainly due to intrinsic biologic factors.(3) No early Triassic corals of either group are known. This fact is not compelling (by itself) but is important in connection with points 1 and 2, because, given direct descent, both changes took place during this only stage in the history of the two groups in which there are no known corals.

Skeletal elements of crinoid echinoderms: High-resolution structural and microanalytical results

1983 ◽  
Vol 41 ◽  
pp. 194-195
Author(s):  
D. F. Blake ◽  
L. F. Allard ◽  
D. R. Peacor
Keyword(s):  
High Resolution ◽  
Marine Invertebrates ◽  
Sea Urchins ◽  
Structural Features ◽  
Sea Stars ◽  
High Resolution Tem ◽  
Relationship Of ◽  
The Relationship ◽  
Insight Into

Echinodermata is a phylum of marine invertebrates which has been extant since Cambrian time (c.a. 500 m.y. before the present). Modern examples of echinoderms include sea urchins, sea stars, and sea lilies (crinoids). The endoskeletons of echinoderms are composed of plates or ossicles (Fig. 1) which are with few exceptions, porous, single crystals of high-magnesian calcite. Despite their single crystal nature, fracture surfaces do not exhibit the near-perfect {10.4} cleavage characteristic of inorganic calcite. This paradoxical mix of biogenic and inorganic features has prompted much recent work on echinoderm skeletal crystallography. Furthermore, fossil echinoderm hard parts comprise a volumetrically significant portion of some marine limestones sequences. The ultrastructural and microchemical characterization of modern skeletal material should lend insight into: 1). The nature of the biogenic processes involved, for example, the relationship of Mg heterogeneity to morphological and structural features in modern echinoderm material, and 2). The nature of the diagenetic changes undergone by their ancient, fossilized counterparts. In this study, high resolution TEM (HRTEM), high voltage TEM (HVTEM), and STEM microanalysis are used to characterize tha ultrastructural and microchemical composition of skeletal elements of the modern crinoid Neocrinus blakei.

Studies on Leukemogenic and Sarcomagenic Viruses

1970 ◽  
Vol 28 ◽  
pp. 156-157
Author(s):  
Leon Dmochowski
Keyword(s):  
Electron Microscopy ◽  
Electron Microscope ◽  
Morphological Properties ◽  
Mode Of Development ◽  
Relationship Of ◽  
The Relationship

Electron microscopy has proved to be an invaluable discipline in studies on the relationship of viruses to the origin of leukemia, sarcoma, and other types of tumors in animals and man. The successful cell-free transmission of leukemia and sarcoma in mice, rats, hamsters, and cats, interpreted as due to a virus or viruses, was proved to be due to a virus on the basis of electron microscope studies. These studies demonstrated that all the types of neoplasia in animals of the species examined are produced by a virus of certain characteristic morphological properties similar, if not identical, in the mode of development in all types of neoplasia in animals, as shown in Fig. 1.

The relationship of IGE receptor topography to signaling activity in RBL-2H3 mast cells

1991 ◽  
Vol 49 ◽  
pp. 236-237
Author(s):  
J.R. Pfeiffer ◽  
J.C. Seagrave ◽  
C. Wofsy ◽  
J.M. Oliver
Keyword(s):  
Mast Cells ◽  
Protein A ◽  
Scattered Electron ◽  
Ige Receptor ◽  
Receptor Complexes ◽  
Ige Binding ◽  
Electron Imaging ◽  
Small Clusters ◽  
Relationship Of ◽  
The Relationship

In RBL-2H3 rat leukemic mast cells, crosslinking IgE-receptor complexes with anti-IgE antibody leads to degranulation. Receptor crosslinking also stimulates the redistribution of receptors on the cell surface, a process that can be observed by labeling the anti-IgE with 15 nm protein A-gold particles as described in Stump et al. (1989), followed by back-scattered electron imaging (BEI) in the scanning electron microscope. We report that anti-IgE binding stimulates the redistribution of IgE-receptor complexes at 37“C from a dispersed topography (singlets and doublets; S/D) to distributions dominated sequentially by short chains, small clusters and large aggregates of crosslinked receptors. These patterns can be observed (Figure 1), quantified (Figure 2) and analyzed statistically. Cells incubated with 1 μg/ml anti-IgE, a concentration that stimulates maximum net secretion, redistribute receptors as far as chains and small clusters during a 15 min incubation period. At 3 and 10 μg/ml anti-IgE, net secretion is reduced and the majority of receptors redistribute rapidly into clusters and large aggregates.

Severe Paradoxical Dysphonia in Two Young Women

1993 ◽  
Vol 2 (3) ◽  
pp. 52-55 ◽  
Author(s):  
Michael Collins ◽  
Robert McDonald ◽  
Robert Stanley ◽  
Timothy Donovan ◽  
C. Frank Bonebrake
Keyword(s):  
Young Women ◽  
Theoretical Basis ◽  
Therapeutic Regimen ◽  
Instrumental Data ◽  
Relationship Of ◽  
The Relationship

This report describes an unusual and persistent dysphonia in two young women who had taken a therapeutic regimen of isotretinoin for intractable acne. We report perceptual and instrumental data for their dysphonia, and pose a theoretical basis for the relationship of dysphonia to this drug. We also provide recommendations for reducing the risk of acquiring a dysphonia during the course of treatment with isotretinoin.

Establishing a Group Educational Session for Hyperacusis Patients

2019 ◽  
Vol 28 (2) ◽  
pp. 245-250
Author(s):  
Ann E. Perreau ◽  
Richard S. Tyler ◽  
Patricia C. Mancini ◽  
Shelley Witt ◽  
Mohamed Salah Elgandy
Keyword(s):  
Therapeutic Process ◽  
Treatment Options ◽  
Clinical Group ◽  
Education Session ◽  
Group Approach ◽  
Treatment Protocols ◽  
Educational Session ◽  
Evidence Based Treatment ◽  
Relationship Of ◽  
The Relationship

Purpose Audiologists should be treating hyperacusis patients. However, it can be difficult to know where to begin because treatment protocols and evidence-based treatment studies are lacking. A good place to start in any tinnitus and hyperacusis clinic is to incorporate a group educational session. Method Here, we outline our approach to establishing a hyperacusis group educational session that includes specific aspects of getting to know each patient to best meet their needs, understanding the problems associated with hyperacusis, explaining the auditory system and the relationship of hyperacusis to hearing loss and tinnitus, describing the influence of hyperacusis on daily life, and introducing treatment options. Subjective responses from 11 adults with hyperacusis, who participated in a recent clinical group education session, were discussed to illustrate examples from actual patients. Conclusions Due to the devastating nature of hyperacusis, patients need to be reassured that they are not alone and that they can rely on audiologists to provide support and guidance. A group approach can facilitate the therapeutic process by connecting patients with others who are also affected by hyperacusis, and by educating patients and significant others on hyperacusis and its treatment options. Supplemental Material https://doi.org/10.23641/asha.8121197

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