133 research outputs found
Supermarkets and the organic food supply chain: the potential for waste generation and its mitigation
No full textThis paper discusses the role of multiple grocery retailers ('supermarkets') within the organic food industry. While the background to the object industry (in terms of both the incentive(s) to buy organic food and the ensuing market demand/supply statistics) has to be presented such as to justify the topic as one worthy of academic interest, the main concern of this paper is with the potential within the relevant industry for waste generation to occur. The potential for such an eventuality is identified via a detailed analysis of: the industry's attempts to ensure the integrity of its organic supplies via the imposition of standards that exceed mandatory (hence EU) requirements, thus potentially exerting pressure on suppliers; the pricing policies applied by the supermarkets; the extent of their domestic sourcing versus imports; the GM 'contamination' debate and supplier cooperation via advice, research and the encouragement of partnership schemes. A critique of the present situation regarding all these issues is combined with an analysis of present initiatives to reduce the incidence of waste that might erstwhile occur, together with suggestions for further improvements – although ultimately it appears likely that 'mitigation' is a more likely future scenario than 'minimisation'. <br/
Perhaps, we have been drawing the wrong lines
No full textPERHAPS, WE HAVE BEEN DRAWING THE WRONG LINES ...altogether, in understanding the discursive practices that inform architectural pedagogy. In the three decades following the publication of Beatriz Colomina’s Sexuality and Space, architect-educators are not as prone to question the gendering of spaces, through the introduction of (unfortunately) elective seminars on the same. Yet locating questions of sex, gender and subsequently identity, within the discipline remains largely ignored. We ran, before we could walk. In finding (our own) identities, we have misidentified the problem: that of representation. In particular, architectural representation in the form of orthographic drawings, which underpin most, if not all forms of architectural production, producing architects first and foremost, given that they essentially make drawings, not buildings as Robin Evans argues. Furthermore, these works are necessarily predicated on both distancing and aperspectivity, in their putative objectivity. Yet, work that looks at the ontology of drawings is few and far in between. Extending this, I posit that to understand the possibility of a feminist pedagogy within architecture, we need to return to the literal and metaphorical drawing board. If as Judith Butler argues, both gender and sex are constantly performed through acting upon matter , it is architects acting on and through the (matter of) drawings, that gendering takes place. Furthermore, what do these supposedly objective acts/objects implicitly teach us? Acts of complete control, afforded only through the making of orthographic representations. As I will argue in the paper that follows, it is thus, that the biological-sex of the architect is rendered irrelevant, in lieu of their gendered subjectivity, which predicated on control, is pervasively and dominantly masculine. We drew, before we could talk. What happens if we destabilize the myth about the omnipresence and omnipotence of architectural representation, and consequently of the masculine architectural genius? Through a series of experiments at JSAA , we immersively focus on the representations within which we are always already embedded. What if we investigate not designate, collect in lieu of create, analyze instead of design, and visually narrate, as opposed to dictate? Could we, then, raise questions about the act and object/ives of architectural representations, through larger representational practices, wherein the world was understood as always already complex, and not conveniently reductive? Could we raise the question of intersectionalities, as opposed to simplistic linearities immanent to architectural representations? Through this, could we allow for a feminist architectural pedagogy from within, instead of without? These are some of the avenues, which the proposed paper, hopes to open up for discussion
Resistin in serum and gingival crevicular fluid as a marker of periodontal inflammation and its correlation with single-nucleotide polymorphism in human resistin gene at −420
No full textAims: Resistin is an adipocytokine, which have been studied for its role in insulin resistance and recently in inflammation. The aim of the present study is to assess the concentration of resistin in serum and gingival crevicular fluid (GCF) and to compare the levels between subjects with and without periodontitis and type 2 diabetes mellitus (T2DM) and to further correlate the resistin levels with the single-nucleotide polymorphism (SNP) at −420. Setting and Designs: A total of 96 subjects (48 males and 48 females) were divided on the basis of gingival index (GI), probing pocket depth (PD), clinical attachment level (CAL) and hemoglobin A 1c levels into healthy (group 1, n = 24), uncontrolled-diabetes related periodontitis (group 2, n = 24), controlled-diabetes related periodontitis (group 3, n = 24) and chronic periodontitis without T2DM (group 4, n = 24). Materials and Methods: The GCF and serum levels of resistin were quantified using the enzyme-linked immunosorbent assay and compared among the study groups. Further, the association of the resistin levels with periodontal inflammation and SNP at −420 was studied. Results and Conclusion: The resistin levels in GCF and serum from patients with periodontitis or diabetes mellitus related periodontitis (controlled or uncontrolled) were higher than that of healthy subjects and correlated positively with GI. Further, subjects with GG genotype at −420 showed significantly higher GI, PD, CAL as compared with genotype group CC. Resistin was detected in all serum and GCF samples and was significantly higher in periodontitis. Further, GG genotype at −420 was associated significantly with periodontal inflammation and resistin levels
Beyond the classroom: student involvement experiences of second-generation South Asian college students
No full textAsian Pacific Islander college students are a growing and emerging population on college campuses in the United States (Accapadi, 2012). South Asian college students have often been categorized as part of the Asian Pacific Islander community and due to their model minority status have often been overlooked in research. Involvement is an important part of the college experience and has shown to increase retention and engagement on campus (Astin, 1984; Lundberg, et al., 2007). The purpose of this research study was to examine whether the ethnic identity of South Asian college students affects their choice of engagement and involvement in campus activities. This qualitative study examined the experiences of South Asian college students and their involvement at a large public research university in the Northeast. The implications of the study focused on the themes of family influence, ethnic identity, childhood involvement and career choice. In discussing the theme of family influence, there are three areas discussed: collective interdependence, fear of disappointment and respect for family, and involvement choices. The theme of ethnic identity there are discussions related to terminology, culturally based organizations and the idea of tokenism and model minority. The purpose of this study was to study the involvement practices of South Asian students and develop knowledge and themes to inform the practices of student affairs professions to more fully involve this emerging population of students.Ed.D.Includes bibliographical referencesby Avani Ran
Determination of galantamine hydrobromide in bulk drug and pharmaceutical dosage form by spectrofluorimetry
No full textAim: To develop a simple, accurate, sensitive, rapid and precise method for the determination of galantamine hydrobromide in bulk drug and pharmaceutical dosage form. Material and Methods: The method employs wavelength detection and determination of galantamine hydrobromide at excitation wavelength 282 nm and emission wavelength 607 nm in a solution of simple distilled water. Result and Conclusion: The method was found to be linear in the range of 2-14 μg/ml having r2 = 0.9999. The mean accuracy was found to be 98.12% to 99.67%. The intraday and interday precision was found to be 0.18-0.35% and 0.13-0.46%, respectively. The limit of detection was found to be 0.29 μg/ml. The limit of quantification was found to be 0.89 μg/ml. The method was successfully applied for the determination of galantamine hydrobromide in bulk drug as well as pharmaceutical dosage form
An evaluation study of Ravenwood's youth transitioning to and through high school
No full textThis study focuses on Youth of Color in the Bay Area neighborhoods of East Palo Alto and eastern Menlo Park who attended the Ravenswood City School District (RCSD), as they transition to and through Sequoia Union High School District (SUHSD). This is a three-part culminating project depicting the unique position of Ravenswood youth who lack the financial and social capital that their White and Asian peers enjoy. Part one explores my transformation as an RCSD educator, intertwined with historical background and policy implications for RCSD youth. Part two focuses on the experiences of former RCSD students who currently attend SUHSD schools, as they transition from middle school to high school. Finally, part three is a compilation of recommendations based on part one and two, with a specific call to action for educators, service-providers, and funders looking to close the achievement and opportunity gap between White and Asian students compared to Youth of Color.https://doi.org/10.46569/10211.3/13161
An evaluation study of Ravenwood's youth transitioning to and through high school
No full textThis study focuses on Youth of Color in the Bay Area neighborhoods of East Palo Alto\ud
and eastern Menlo Park who attended the Ravenswood City School District (RCSD), as\ud
they transition to and through Sequoia Union High School District (SUHSD). This is a\ud
three-part culminating project depicting the unique position of Ravenswood youth who\ud
lack the financial and social capital that their White and Asian peers enjoy. Part one\ud
explores my transformation as an RCSD educator, intertwined with historical\ud
background and policy implications for RCSD youth. Part two focuses on the\ud
experiences of former RCSD students who currently attend SUHSD schools, as they\ud
transition from middle school to high school. Finally, part three is a compilation of\ud
recommendations based on part one and two, with a specific call to action for educators,\ud
service-providers, and funders looking to close the achievement and opportunity gap\ud
between White and Asian students compared to Youth of Color
TRUSTED BUILDING BLOCKS FOR RESILIENT EMBEDDED SYSTEMS DESIGN
No full textThe use of small embedded and IoT devices have increased monumentally with technological advancements and industry 4.0 evolution. These devices are widely used in applications ranging from home security systems, sensors network, smart appliances, industrial control systems, and Electronic Control Units (ECU)'s in cars. They are used to collect, process, and transfer security-critical user information and data. Attackers can leak, steal, modify and misuse their security critical information in malicious activities. Thus, the security and assurance that the device runs untempered, vendor authorized trusted code becomes an open security problem. Secure boot and remote attestation (RA) are widely used security primitives that verifies the integrity and authenticity of the software code running on the devices at boot-time and periodic runtime, respectively. TPM2.0 and trust-zone based complex hybrid solutions provides different categories of attacks detection and prevention with the use of access control and encryption. Other techniques such as control flow and data flow attestation are widely used for detecting malicious code execution during runtime. Secure-boot and RA focuses on the detection of malicious code presents and leaves the device un-operational state. They relies on manual or over-the-air or code re-flash to bring the device back to the operational state. The resilience of the embedded device is defined as, its ability to detect the presence of different types of attacks, prevent them from being executed and provide the recovery techniques to bring the device back to the normal operational state. Smart attacks can corrupt the networking stack to disable over the air code re-flashing and due to placing of the devices in industrial control plants, ECU's, smart cameras , manual code reflash sometimes becomes not viable solution. The resilient small embedded system design needs attacks detection, prevention and recovery at both boot-time and continues runtime.Therefore, this dissertations outlines several solutions for augmenting attack resiliency in small embedded and IOT devices. The techniques can be easily adapted to existing systems as they requires very little or no hardware overhead. The dissertations first implements TPM2.0 based end-to-end device attestation technique with TLV format of the event logs. It than showcases two different implementation of lightweight attack detection, prevention and onboard recovery techniques. lastly, it presents lightweight novel control register based continuous runtime resilience techniques. The hybrid solutions have been implemented and tested on the FPGA for Proof Of Concept (POC) validation. The results of the state-of-the-art comparison and evaluation are presented. Furthermore, to demonstrate that the proposed solution adheres the security and specifications, a novel end-to-end formal verification framework is proposed to gain the confidence in the system design. Thus, these dissertations paves the way for attack resilient embedded systems design and provides explores the future research direction
Analysis of DNA damage in cells excreted in urine of cervical cancer patients using alkaline comet assay
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