Search results for " observation"
showing 10 items of 441 documents
Editorial Judgments
2009
Based on participant observation of editors’ decisions for a sociology journal, the paper investigates the peer review process. It shows a hidden interactivity in peer review, which is overlooked both by authors who impute social causes to unwelcome decisions, and by the preoccupation with ‘reliability’ prevalent in peer review research. This study shows that editorial judgments are: (1) attitudes taken by editorial readers toward various kinds of text, as a result of their membership in an intellectual milieu; (2) impressions gained through the reading process (through a ‘virtual interaction’ with the author); and (3) rationalizing statements about manuscripts made by editors and addressed…
El método mejorado del tocón (ISUM) permite evaluar procesos de erosión del suelo en plantas injertadas utilizando medidas topográficas in situ
2021
[EN] Policymakers, stakeholders and rural inhabitants must be aware of the relevance of soil erosion as an irreversible landdegradation process. This is key to achieve the land degradation neutrality challenge and the sustainability of humankindand natural ecosystems. Agricultural areas are being affected by soil erosion threatening soil quality and, subsequently,food security. Therefore, it is necessary to develop new techniques and methods visually friendly and easy to be accessedto survey and assess the soil erosion concerns. ISUM (Improve Stock Unearthing Method) is a well-contrasted procedureto estimate and map soil mobilisation and erosion rates. To achieve this goal, using the plant …
Single Gold Nanoparticle Growth Monitored in situ
2012
The novel fastSPS setup is used to study the growth process of rodshaped gold nanoparticles in the presence of surfactant molecules. It is observed that the particles grow mainly in the direction of the short rod axis, resulting in a decrease of the aspect ratio. This is, to the best of my knowledge, the first real-time optical observation of nanoparticle growth on a single-particle level (results were published in reference ). In collaboration with Olaf Schubert the nanoparticle growth was also monitored using the novel RotPOL setup. Here a decrease of the average polarization anisotropy \(PA\) is observed.
In-Situ atomic force microscopic observation of ion beam bombarded plant cell envelopes
2007
Abstract A program in ion beam bioengineering has been established at Chiang Mai University (CMU), Thailand, and ion beam induced transfer of plasmid DNA molecules into bacterial cells (Escherichia coli) has been demonstrated. However, a good understanding of the fundamental physical processes involved is lacking. In parallel work, onion skin cells have been bombarded with Ar+ ions at energy 25 keV and fluence1–2 × 1015 ions/cm2, revealing the formation of microcrater-like structures on the cell wall that could serve as channels for the transfer of large macromolecules into the cell interior. An in-situ atomic force microscope (AFM) system has been designed and installed in the CMU bio-impl…
Brancati su Pirandello e il pirandellismo
2019
Nel romanzo breve "Sogno di un valzer" uscito a puntate su “Quadrivio”, dal 5 giugno al 14 agosto 1938, Vitaliano Brancati mette in scena, tra osservazione dei luoghi e rilevamento di costume, un’umanità fuori misura, continuamente in bilico tra realtà e sogno. A Caltanissetta (Nissa) la città nel cui Istituto magistrale lo scrittore, voltate le spalle alla Roma fascista, è venuto a insegnare, personaggi non appariscenti, insignificanti, che tuttavia covano desideri, si arrovellano in domande metafisiche. Prende così forma il leitmotiv delle critica al pirandellismo che più volte con ironia sottile affiora negli scritti brancatiani. Il saggio mostra come esso si intrecci con la comicità sul…
Not all group members are created equal: heterogeneous abilities in inter-group contests
2020
AbstractCompetition between groups is ubiquitous in social and economic life, and typically occurs between groups that are not created equal. Here we experimentally investigate the implications of this general observation on the unfolding of symmetric and asymmetric competition between groups that are either homogeneous or heterogeneous in the ability of their members to contribute to the success of the group. Our main finding is that relative to the benchmark case in which two homogeneous compete against each other, heterogeneity within groups per se has no discernable effect on competition, while introducing heterogeneity between groups leads to a significant intensification of conflict a…
El Colegio Público Trabenco de Leganés: La aventura de aprender
2011
En este texto se explica el funcionamiento del centro públi- co de infantil y primaria Trabenco a partir de los datos obtenidos tras una extensa investigación etnográfica en el colegio por parte de los autores. Se ha realizado observación participante de la vida en las aulas, de las dife- rentes reuniones –junta de niños, consejo escolar, claustro, coordinación pedagógica, etc.– de las salidas del centro, de los recreos, del comedor, etc. Igualmente se han llevado a cabo varios grupos de discusión con alumnos del centro, con algunos de los que estaban ya matriculados en su instituto de secundaria de referencia y con padres y madres. También se ha entre- vistado a casi todos los profesores d…
Spurectomy: A novel modification of non-penetrating deep sclerectomy.
2020
To evaluate the outcomes of a novel modification of the non-penetrating deep sclerectomy (NPDS) approach for glaucoma management called spurectomy.Observational comparative non-randomized retrospective study including 98 glaucomatous eyes of 76 patients operated on with the spurectomy technique consisting of the combination of the excision of the scleral spur with NPDS (groupA). A control group (groupB) including 53 glaucomatous eyes of 43 patients operated on with classical NPDS was also included. Changes in intraocular pressure (IOP) and medications required as well as complications were recorded in a 12-month follow-up.Mean IOP decreased from 25.69±8.11 preoperatively to 15.73±4.16mm Hg …
Diagnosis and therapeutic management of primary headache in an emergency setting
2013
The THESEUS space mission concept: science case, design and expected performances
2018
THESEUS is a space mission concept aimed at exploiting Gamma-Ray Bursts for investigating the early Universe and at providing a substantial advancement of multi-messenger and time-domain astrophysics. These goals will be achieved through a unique combination of instruments allowing GRB and X-ray transient detection over a broad field of view (more than 1sr) with 0.5¿1 arcmin localization, an energy band extending from several MeV down to 0.3¿keV and high sensitivity to transient sources in the soft X-ray domain, as well as on-board prompt (few minutes) follow-up with a 0.7¿m class IR telescope with both imaging and spectroscopic capabilities. THESEUS will be perfectly suited for addressing …