Search results for "type"
showing 10 items of 10618 documents
Fixed point results in cone metric spaces for contractions of Zamfirescu type
2010
We prove a result on points of coincidence and common fixed points in cone metric spaces for two self mappings satisfying a weak generalized contractive condition of Zamfirescu type. We deduce some results on common fixed points for two self mappings satisfying a weak contractive type condition. These results generalize some well-known recent results.
Modelli di causalità e crimine
2021
I criminologi, come gli altri scienziati sociali, sono da sempre interessati a considerare come eventi antecedenti possano aver determinato i fenomeni oggetto del loro studio. Chiaramente, per ciò che concerne devianza e crimine, l’analisi è resa maggiormente difficoltosa per via della presenza di una serie di numerose variabili che interagiscono tra loro nella produzione del crimine e dei criminali. Analizziamo le quattro principali tipologie di relazioni causali (Einstadter – Henry 1995) che Einstadter e Henry hanno identificato. Criminologists, like other social scientists, have always been interested in considering how antecedent events may have determined the phenomena they are studyin…
Effects of plant type and calcium cyanamide dosage on yield, nutritional and nutraceutical traits of strawberry in Sicily
2021
In the Mediterranean area, strawberry is usually set up by using bare-rooted plants, fresh plug plants or cold-stored plants, achieving different fruit ripening earliness and crop performance. Strawberry plants can be combined with various cultivation practices to improve strawberry fruit production and quality. Calcium cyanamide (CaCN2) is well-acknowledged as a fertilizer used in the horticulture sector. Its use can enhance the soil fertility, prevent soil acidification, and improve crop production and fruit quality. This work evaluated the effects of different pre-transplant CaCN2 dosages on bare-rooted plants, fresh plug plants or cold-stored plants. Coldstored plants with 400 kg ha(-1)…
Effects of Genotype and Climate on Productive Performance of High Oleic Carthamus tinctorius L. under Rainfed Conditions in a Semi-Arid Environment o…
2023
Safflower (Carthamus tinctorius L.) is a promising oilseed crop for cultivation in central Southern Italy due to its high tolerance to drought and salinity stress and appreciable seed and oil yields. The genetic diversity of cultivars and climate factors can affect fatty acid composition and yield traits. This study aimed to assess the effects of genotype and climate conditions on the productive performance of eight high oleic safflower genotypes under rainfed conditions in Sicily (Italy). These genotypes were compared to the Montola 2000 cultivar, which was used as a reference. Tests were carried out during the growing seasons of 2014–2015 and 2015–2016. The experimental design…
Crop rotation, nitrogen fertilization and genotype effects on durum wheat productive characteristics
2004
A field trial was performed in 2000/01 and 2001/02 in the experimental farm “Sparacia” (Cammarata – AG – Sicily) in order to evaluate the qualitative and quantitative response of four varieties of durum wheat when grown after a legume crop (field pea) or in rotation with itself and when submitted to different N-fertilization levels: no fertilization (N0, control), 60 kg ha-1 (N 60, rate advised by the EC n. 2078/92 for the Sicilian territory) and 120 kg ha-1 (N 120, fertilization rate commonly used under the “traditional” cropping technique). In the first trial year, the fertilized trial expressed a better yield performance than the control, but in 2001/02, characterized by severe and prolo…
KERNEL ESTIMATION OF THE TRANSITION DENSITY IN BIFURCATING MARKOV CHAINS
2023
We study the kernel estimator of the transition density of bifurcating Markov chains. Under some ergodic and regularity properties, we prove that this estimator is consistent and asymptotically normal. Next, in the numerical studies, we propose two data-driven methods to choose the bandwidth parameters. These methods are based on the so-called two bandwidths approach.
Crystal structure, Hirshfeld surface analysis and electrostatic potential study of naturally occurring cassane-type diterpenoid Pulcherrimin C monohy…
2019
Single crystal X-ray diffraction analysis and Hirshfeld surface analysis of the title compound were carried out to analyse quantitatively the intermolecular interactions involved in the crystal packing. The electrostatic potential surface was generated over the Hirshfeld surface to visualize the potential active sites.
Analysis of the covers of textbooks of Primary Physical Education
2017
Esta investigación analiza las imágenes del cuerpo humano y el tipo de actividad física que practica en las portadas de los libros de texto del área de Educación Física (EF) en Educación Primaria (EP), para determinar si reproducen y transmiten estereotipos en relación al sexo, raza, cuerpo, discapacidad y actividad física en función del currículum. La muestra universo consta de 30 portadas, publicadas bajo la Ley Orgánica de Educación (LOE). Los resultados muestran portadas preferentemente dibujadas y en color, los protagonistas de la actividad física son niños y niñas conjuntamente (agrupación mixta), pero a la vez permanecen estereotipos de raza (blanca) y somatotipo (ectomorfo) realizan…
The conjoint conceptualization and negotiation of national cultures : qualitative study of discursive culture-concepts, their function and their rela…
2015
The study of stereotypes and stereotyping is as complex and multi-facetted as the social phenomenon itself. From being seen as an erroneous and over-generalizing image in the mind of individuals, to the current perspective that stereotypes have an individual and a social level, are shaped by long-term and short-term contextual factors, and are used for certain purposes, managed and negotiated, stereotypes have been acknowledged as a topic which cannot be studied within one academic discipline alone. This study looks into stereotype use and management during in-group discourse about other national cultures. The data consists of three focus groups consisting of Finnish students who talk about…
Species–area relationships in continuous vegetation: Evidence from Palaearctic grasslands
2019
Aim Species-area relationships (SARs) are fundamental scaling laws in ecology although their shape is still disputed. At larger areas, power laws best represent SARs. Yet, it remains unclear whether SARs follow other shapes at finer spatial grains in continuous vegetation. We asked which function describes SARs best at small grains and explored how sampling methodology or the environment influence SAR shape. Location Palaearctic grasslands and other non-forested habitats. Taxa Vascular plants, bryophytes and lichens. Methods We used the GrassPlot database, containing standardized vegetation-plot data from vascular plants, bryophytes and lichens spanning a wide range of grassland types throu…