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Accumulation of Gel Particles in the Sea-Surface Microlayer during an Experimental Study with the Diatom Thalassiosira weissflogii  [PDF]
Luisa Galgani, Anja Engel
International Journal of Geosciences (IJG) , 2013, DOI: 10.4236/ijg.2013.41013
Abstract:

Since the early 80’s, the sea-surface microlayer (SML) has been hypothesized as being a gelatinous film. Recent studies have confirmed this characteristic, which confers properties that mediate mass and energy fluxes between ocean and atmosphere, including the emission of primary organic aerosols from marine systems. We investigated SML thickness and composition in five replicate indoor experiments between September and December 2010. During each experiment, the SML and underlying seawater were sampled from four seawater tanks: one served as control, and three were inoculated with Thalassiosira weissflogii grown in chemostats at 180, 380 and 780 ppm pCO2. We examined organic material enrichment factors in each tank, paying particular attention to gel particles accumulation such as polysaccharidic Transparent Exopolymer Particles (TEP) and the proteinaceous Coomassie Stainable Particles (CSP). While previous studies have observed carbohydrates and TEP enrichment in the microlayer, little is yet known about proteinaceous gel particles in the SML. Our experiments show that CSP dominate the gelatinous composition of the SML. We believe that the enrichment in CSP points to the importance of bacterial activity in the microlayer. Bacteria may play a pivotal role in mediating processes at the air-sea interface thanks to their exudates and protein content that can be released through cell disruption.

Biopsychosocial perspective of ADHD  [PDF]
Luisa Matilde Salamanca
Open Journal of Epidemiology (OJEpi) , 2014, DOI: 10.4236/ojepi.2014.41001
Abstract: Attention Deficit Hyperactivity Disorder (ADHD) is considered a major public health problem, not only for its high prevalence but also because the symptoms have an impact on activities in daily life at both familial and school levels as well as on a general social level. Clinical evaluation of ADHD was based on the diagnostic criteria of the International Classification of Diseases ICD 10, Diagnostic and Statistical Manual of Mental Disorders DSM IV and comorbidity phenomena. Therefore, it has not yet developed into evaluations any more comprehensive than activity limitations and participation restrictions from a biopsychosocial model of disability, as proposed by the International Classification of Functioning, Disability and Health ICF. Thus, it is necessary to start assessment processes of children with ADHD using the functionality and performance components proposed by the ICF, allowing a new approach and a greater understanding of the health status of this population from a more holistic perspective in relation to the disability. Objective: To identify the theoretical elements that justify the importance of addressing ADHD from a biopsychosocial perspective as proposed by the evaluation of the ICF model, ensuring comprehensive assessment processes. This article is the result of a theoretical review addressed in research projects around the design, validity and reliability of assessment instruments of activity limitations and participation restrictions in children with ADHD.
Towards the Configuration of an Industrial Engineering Education Field in Colombia from the Critical Didactics Pedagogy  [PDF]
Luisa F. Rodriguez
Creative Education (CE) , 2014, DOI: 10.4236/ce.2014.55039
Abstract:

This work I try to deliver in this paper due to the search by the sense of being a teacher-engineer, for some time. The constant search for the meaning of engineering education in environments like ours, still so dependent senses and knowledge of others, that being so alien, and imposes were simply assumed without further discussion. Industrial engineering does not arise in Colombia as a field of being able specific, with a corpus discipline clearly definitely and differentiated, which is constituted one of the motives that impedes his tracking inside engineering education history. In the statements till now opposing, there is glimpsed how this function was replaced by other engi- neers in the industry, such as chemical or mechanical engineers, maybe the only one fact that re- veals his emergence is his institutionalization as study plan in the Universidad Industrial de San- tander in 1958 The exhibition of these facts, it uses as support: The first one is that the processes of modernization and the form like formed, from the new forms of economic rationality created with the development model; they made necessary the appearance of the industrial engineering as discipline in the powers of engineering. The second one is that it is possible to form alternate speeches for the field of the industrial engineering in Colombia. This reflection becomes relevant in recent times when promoting critical thinking in engineering education has become important, from the understanding that engineering moves into the intersection between social and technical expertise should adapt to the economic, political and cultural contexts in which it is applied. To which I make use of Foucault’s notions of power and subjectivity, the Bourdieu’s notions of symbolic violence and Habermas communicative action. Finally I try to illustrate the reflection with the application of the concept “affectively critical learning” developed from the courses that I directed in the Universidad Autónoma de Colombia.

Cardiomyopathy protection in Chagas Disease  [PDF]
Jorge E. Mitelman, Luisa Gimenez
World Journal of Cardiovascular Diseases (WJCD) , 2013, DOI: 10.4236/wjcd.2013.37069
Abstract: There is some published evidence suggesting micro vascular endothelial dysfunction and dysautonomia involvement in Chagas disease in association with cardiomyocyte changes favoring disease progression. The combined treatment between angiotensin converting enzyme (ACE) inhibitor drugs; Simvastatin, muscarinic antibody immunoadsorbent together with fungicidal drugs would open therapeutic possibilities in this disease.
A new characterization of -bounded semigroups with application to implicit evolution equations
Luisa Arlotti
Abstract and Applied Analysis , 2000, DOI: 10.1155/s1085337501000331
Abstract: We consider the one-parameter family of linear operators that A.Belleni Morante recently introduced and calledB-bounded semigroups. We first determine all the propertiespossessed by a couple (A,B) of operators if they generate a B-bounded semigroup (Y(t))t≥0. Then we determine the simplest further property of the couple (A,B) which can assure the existence of a C0-semigroup (T(t))t≥0 such that for all t≥0,f∈D(B) we can write Y(t)f=T(t)Bf. Furthermore, we compare our result with the previous ones andfinally we show how our method allows to improve the theory developed by Banasiak for solving implicit evolution equations.
Temporary Residences: a becoming project
Luisa Ingaramo
Techne : Journal of Technology for Architecture and Environment , 2012,
Abstract: Among the experimental actions fostered so far by the Compagnia di San Paolo through its Housing Program, committed in handling the complex and fragmented housing discomfort issue, the Temporary Dwellings initiative represents a unique and innovative experience, as it actually offers the chance to activate a proper managerial direction around and about the real estate development processes. In particular, the Temporary Dwellings action is marked by two key aspects: a structured co-planning vision and projects selected through a requests for proposal system. The process in the whole aims on the one hand at reaching an high transparent level of decision making , while, on the other hand, at developing a continuous and mutual monitoring and matching activity between the Housing Program and the group of cross-curricular experts teamed up in the project: technicians, designers, managers, psychologists, contractors, and the other local stakeholders.
La cultura de mercado a través de las interrelaciones de la Constitución italiana y de los principios comunitarios
Luisa Casetti
Pensamiento Constitucional , 2000,
Abstract: El artículo no presenta resumen.
Ouro Preto foi, no passado mês de maio, a capital de inova o em tecnologia da soldagem!
Luisa Quintino
Soldagem & Inspe??o , 2011, DOI: 10.1590/s0104-92242011000200001
Abstract:
La prospettiva della storia culturale e l’approccio autobiografico
Luisa Passerini
Storia delle Donne , 2006,
Abstract: Cultural history can contribute to age studies in many ways: by using literary texts, memory sources (both written and oral), and visual images from art and the cinema, it can give a sense of the plurality of ways of aging in various ages and places. It recognizes the centrality of the body for this type of research on subjectivity and it considers the autobiographical approach essential for the study of aging. The author includes her own reflections on the experience of aging and writing on age, besides reviewing a number of existing texts from Europe and North America.
Lexical and aspectual functions of the prefix za- in the Povest’ vremennych let Funzioni lessicali e aspettuali del preverbo za- nella Povest’ vremennych let
Luisa Ruvoletto
Studi Slavistici , 2012,
Abstract: This paper examines the forms of the za- prefixed verbs in the Old Russian text Povest’ vremennych let (11th-12th centuries). The study shows how this prefix, like other prefixes in Old Russian, has both lexical and aspectual functions, and that there is considerable interaction between the semantics of the prefix and the meaning of the unprefixed verb. Some groups of verbal forms can be found in which the prefix fulfils specific meanings. This analysis allows the detection of some “embryonic” forms of the lexical meanings and aspectual functions expressed in the modern Russian by the za- prefixed verbs in one of the oldest East Slavic texts. This is clearly of interest when delineating the semantic evolution of this prefix and its aspectual function in a diachronic perspective. This paper examines the forms of the za- prefixed verbs in the Old Russian text Povest’ vremennych let (11th-12th centuries). The study shows how this prefix, like other prefixes in Old Russian, has both lexical and aspectual functions, and that there is considerable interaction between the semantics of the prefix and the meaning of the unprefixed verb. Some groups of verbal forms can be found in which the prefix fulfils specific meanings. This analysis allows the detection of some “embryonic” forms of the lexical meanings and aspectual functions expressed in the modern Russian by the za- prefixed verbs in one of the oldest East Slavic texts. This is clearly of interest when delineating the semantic evolution of this prefix and its aspectual function in a diachronic perspective.
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