24 research outputs found
In Refuge 22.1, the name of an author was misspelled on the contents page and on page 129. The correct spelling is Mahshid Esfandiari.
No full textErratum: in Refuge 22.1, the name of an author was misspelled on the contents page and on page 129. The correct spelling is Mahshid Esfandiari
Vorhersagekraft von drei verschiedenen Nozizeptionsmonitoren für moderate bis starke postoperative Schmerzen
No full textDie intraoperative Dosierung von Opioiden ist eine Herausforderung im anästhesiologischen Alltag und erfolgt meist anhand von Herzfrequenz, Blutdruck, Spontanbewegung und der Erfahrung der Anästhesist:innen. Eine effektive postoperative Schmerztherapie ist entscheidend für die Erholung. Es fehlen jedoch zuverlässige Methoden zur Abschätzung des Analgesiebedarfs vor dem Erwachen aus der Allgemeinanästhesie. Diese Studie testete das Nozizeptionsmonitoring, das als objektive Methode zur Steuerung der intraoperativen Analgesie entwickelt wurde, auf seine Fähigkeit, moderate bis starke postoperative Schmerzen vorherzusagen. Die Nozizeptionsindizes Surgical Pleth Index (SPI), Pupillary Pain Index (PPI) und Nociception Level Index (NOL) wurden hierfür untersucht.
Es wurden 60 Patient:innen eingeschlossen, die unter Allgemeinanästhesie einen orthopädisch-unfallchirurgischen Eingriff durchliefen. Die Herzfrequenz als klassischer Nozizeptionsparameter sowie SPI, PPI und NOL wurden in den fünf Minuten vor dem Erwachen gleichzeitig gemessen, um ihre diagnostische Genauigkeit direkt miteinander zu vergleichen. Ihre Vorhersagekraft wurde mittels ROC-Kurven, Vorhersagewahrscheinlichkeiten und multivariater logistischer Regressionsanalyse evaluiert.
Der NOL zeigte die beste Vorhersagekraft für postoperative Schmerzen (ROC-AUC = 0,661; P = 0,038), jedoch wies keiner der Indizes allein eine ausreichende diagnostische Genauigkeit auf. In Kombination mit anderen Variablen erreichte der NOL in der multivariaten Regressionsanalyse jedoch eine gute Vorhersagekraft (ROC-AUC = 0,83; P < 0,001). HF, SPI und PPI zeigten nur schwache Zusammenhänge mit dem postoperativen Schmerzniveau und Opioidbedarf, während der NOL moderate Korrelationen aufwies. Diese Ergebnisse sprechen gegen den Einsatz eines einzelnen Nozizeptionsmonitors zur Vorhersage postoperativer Schmerzen. Die multivariate logistische Regressionsanalyse deutet jedoch darauf hin, dass Nozizeptionsmonitore in Kombination mit weiteren Variablen verlässliche Aussagen über das Auftreten moderater bis starker postoperativer Schmerzen ermöglichen könnten. Dies könnte eine individuell angepasste perioperative Schmerztherapie begünstigen. Weitere Studien sind erforderlich, um zu prüfen, ob das Nozizeptionsmonitoring die postoperative Schmerztherapie und damit das Patientenoutcome verbessern kann.Intraoperative opioid dosing is challenging in routine anaesthesiology and typically relies on heart rate, blood pressure, spontaneous movement, and anaesthetists' experience. Effective postoperative pain management is essential for recovery, yet no reliable methods exist to assess analgesic needs before awakening from general anaesthesia. Nociception monitoring has been developed as an objective measurement method for controlling intraoperative analgesia. In this study its ability to predict moderate to severe postoperative pain was tested. We examined the nociception indices Surgical Pleth Index (SPI), Pupillary Pain Index (PPI), and Nociception Level Index (NOL).
A total of 60 patients undergoing orthopaedic-trauma surgery under general anaesthesia were included. The monitors were used simultaneously to directly compare their diagnostic accuracy. In the five minutes prior to awakening, the heart rate as a classical parameter for assessing intraoperative nociception as well as SPI, PPI and NOL were measured. The predictive power of the heart rate and the indices was analysed using ROC curves, predictive probabilities, and multivariate logistic regression analysis.
When comparing the nociception indices, the NOL achieved the best predictive power for postoperative pain levels (ROC-AUC = 0,661; P = 0,038). However, none of the indices demonstrated sufficient diagnostic accuracy to serve as a sole predictor for postoperative pain. In the multivariate logistic regression analysis, the NOL, in combination with other variables, showed good predictive accuracy (ROC- AUC = 0,83; P < 0,001). Heart rate, SPI and PPI exhibited only weak correlations with postoperative pain levels and opioid requirements, while the NOL showed moderate correlations.
Our results argue against the use of a single nociception monitor for predicting postoperative pain, as we found no clear correlation with postoperative pain levels or opioid requirements. However, the multivariate logistic regression analysis suggests that nociception monitors, in combination with other variables, could provide reliable predictions about the occurrence of moderate to severe postoperative pain, potentially supporting an individually tailored perioperative pain management strategy. Further studies are needed to determine whether nociception monitoring can improve postoperative pain management and thus enhance patient outcomes
Affordability of fruits and vegetables and dietary quality worldwide
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Victoria Miller, Salim Yusuf, Clara K Chow, Mahshid Dehghan, Daniel J Corsi, Karen Lock, Barry Popkin, Sumathy Rangarajan, Rasha Khatib, Scott A Lear, Prem Mony, Manmeet Kaur, Viswanathan Mohan, Krishnapillai Vijayakumar, Rajeev Gupta, Annamarie Kruger, Lungiswa Tsolekile, Noushin Mohammadifard, Omar Rahman, Annika Rosengren, Alvaro Avezum, et al.\ud
Availability, affordability, and consumption of fruits and vegetables in 18 countries across income levels: findings from the Prospective Urban Rural Epidemiology (PURE) study\ud
The Lancet Global Health, Volume 4, Issue 10, October 2016, Pages e695-e70
Environmental–Economic Analysis of Multi-Node Community Microgrid Operation in Normal and Abnormal Conditions—A Case Study of Indonesia
No full textfirst_pagesettingsOrder Article ReprintsOpen AccessArticleEnvironmental–Economic Analysis of Multi-Node Community Microgrid Operation in Normal and Abnormal Conditions—A Case Study of Indonesiaby Mahshid Javidsharifi 1,*,Najmeh Bazmohammadi 1ORCID,Hamoun Pourroshanfekr Arabani 2,Juan C. Vasquez 1 andJosep M. Guerrero 1ORCID1Center for Research on Microgrids (CROM), AAU Energy, Aalborg University, 9220 Aalborg, Denmark2Division of Industrial Electrical Engineering & Automation, Lund University, 221 00 Lund, Sweden*Author to whom correspondence should be addressed.Sustainability 2023, 15(24), 16625; https://doi.org/10.3390/su152416625Submission received: 17 October 2023 / Revised: 27 November 2023 / Accepted: 29 November 2023 / Published: 7 December 2023(This article belongs to the Special Issue Smart Grids and Microgrids in Smart Cities: Operation, Control, Protection and Security)Downloadkeyboard_arrow_down Browse Figures Versions NotesAbstractThis paper presents a comprehensive analysis of the operation management of a multi-node community microgrid (MG), emphasizing power flow constraints and the integration of photovoltaic (PV) and battery systems. This study formulates MG operation management as a multi-objective optimal power flow problem, aiming to minimize costs (maximize profits) and emissions simultaneously. The multi-objective particle swarm optimization (MPSO) method is employed to tackle this complex optimization challenge, yielding a Pareto optimal front that represents the trade-offs between these conflicting objectives. In addition to the normative operation scenarios, this research investigates the robustness of the MG system in the face of abnormal situations. These abnormal scenarios include damage to the PV system, sudden increases in the MG load, and the loss of connection to the main electricity grid. This study focuses on Lombok Island, Indonesia as a practical case study, acknowledging the ongoing efforts to implement the community MG concept in this region. It is observed that when the access to the electricity grid is limited, the energy not served (ENS) increases to 2.88 MWh. During the fault scenario in which there is a 20% increase in the hourly load of each MG, a total of 4.5 MWh ENS is obtained. It is concluded that a resilient operation management system is required to ensure a consistent and reliable energy supply in community MGs in the face of disruptions
"but at this disjuncture we know what is what" Kevin Beasley, Banu Cennetoğlu, John Greyson, Amy Ching-Yan Lam, Ghislaine Leung, Sara Leydon, Mahshid Rafiei
No full textCuttings of text and image come together to form Sara Leydon’s Baroness de Lancinena (1990) and Alice Kyteler (1990). Each a reference to a woman either identified or accused of practicing witchcraft, these two collages are part of a series first shown in a 1990 solo exhibition titled Conviction at Artspeak. Their history in this city is considerable, living long-term in the collection of Christos Dikeakos. Of the seven artists gathered here, Leydon is the only one to have lived and worked on the unceded traditional territory of the xʷməθkʷəy̓əm (Musqueam), Sḵwx̱wú7mesh (Squamish), and səlilwətaɬ (Tsleil-Waututh) Nations upon which this exhibition is also hosted. Befitting their eponymous titles, these collages foreground a lone female figure amongst their assembly of segments. The history of the Baroness of Lancinena can be traced to a single reference located in the pages of Jules Michelet’s study of witchcraft La Sorcière (1862), while the life of Alice Kyteler remains more deeply documented across multiple sources. While speculation about the end of her life abounds, the official records end with her flight for freedom prior to her sentencing. With no evidence of capture, death, or other traces of a life beyond, Kyteler remains fugitive, her actions a continuous process against force imposed. Elusion ad infinitum. “Constant escape is an ode to impurity, an obliteration of the last word.”1 This quote is taken from the preface to Black and Blur (2017), the first part of Fred Moten’s trilogy Consent Not To Be A Single Being which was followed by Stolen Life (2018), and The Universal Machine (2018). Moten underscores escape as interstitial space, an ongoing act that opens up a third stream. A few years later in No One’s Witness: A Monstrous Poetics (2021), Syd Zolf continues some of Moten’s thinking around acts of elusion: “Refusal (“No”) precedes the body, the person, the “one.” Refusal of easy capture, of productive outlay, of consumable meaning.”2 but at this disjuncture we know what iswhat concludes an informal trilogy of group exhibitions that began with Surface Tension at Oakville Galleries a decade ago and continued with separation penetrates at Mercer Union in 2017. The first exhibition tested the persistent materiality and tactility of images and the second exhibition considered interruptions inherent to artworks understood as a caesura. This third exhibition ends with escape. The final distich of Yvonne Rainer’s poem Labor Day Faces lends this exhibition its name. It begins by testing connections before concluding with a rupture: The negotiations around I am not you become moot at parting a moue on one face Keaton on the other each wave of feeling still roiled from household dithering but at this disjuncture we know what is what3 Each of the assembled artists offer an active proposition of elusion: constant escape from confinement, constant escape from autobiography, constant escape from legibility, constant escape from artificial alignment,constant escape from a single configuration, constant escape from autonomy. John Greyson’s 32 of 1640 Letters from Theresa Paolone (1979) is one of his earliest works, an artist’s book that preceded his videos and films for which he is best known. The fictional title character is a female alter-ego for the artist, a subject who is inherently incomplete. The publication purports to capture a cross-section of select dispatches from a lifetime of neglected correspondence: missives that sever relationships and admonish institutions. Although handwritten notes populate some of the pages, the cumulative pleasure and pressure of the book comes from following the permutations of the form letter and the tension between the templates taken and the subjectivity they offer room for. Here, the book is presented as an exhibition copy devised specifically for this exhibition, a video which moves through the selection of the thirty-two epistles, page by page. Banu Cennetoğlu’s practice takes distribution as material. Regardless of the medium engaged, her strategies enable an embodied access to groupings of image, text, and even combinations of colours that implicate the individual amid systems of economics, statehood, and technology. A soft sculpture and score, IKNOWVERYWELLBUTNEVERTHELESS (2015-ongoing) is a phrase translated from psychoanalyst and author Octave Mannoni: “Je sais bien, mais quand même.” Despite the concrete framework of the quote, its exact language is adapted for each iteration, ultimately determined by the location of presentation. Helium-filled mylar balloons that may typically spell out a name, an event, or a celebratory greeting are instead assembled untethered in service of the statement. The active element pushes against their placement and the temporality inherent to every exhibition eventually combines with the chemical conditions of the individual letters. Inevitably the falling and shifting collection of characters open up to other configurations, including illegibility. If Cennetoğlu’s approach to language enlists chance procedures and ultimately embraces its opportunities for discontinuity, Amy Ching-Yan Lam’s poetry practice is demarcated by the limit of the printed page. Taken from her recent publication Baby Book (2023), Force is the shortest of the works gathered for the collection. In the economy of a couplet held by a title that is both noun and verb, the opposite movements of upwards and downwards are embodied in two separate growth cycles. Situating the reader in the middle of a rise and fall, her poem makes tangible what comes to bear upon the work of Cennetoğlu as well as Kevin Beasley. With this poem Lam stakes out a position also taken by the viewer: between. With the current lease winding down at 2954 West 4th Avenue, the garden behind the gallery continues to grow. Long after Unit 17 leaves, processes of Force continue. The upward effort in Cennetoğlu’s work initially appears to have its opposite in Kevin Beasley’s Bust (2011-20), a sculpture indicative of his expanded practice with polyurethane resin and garments. But just as her work both rises and falls, Bust lifts itself into a haunting form as its materiality also weighs down its surfaces, both implying and absenting a body. Most of his works appear in an upright configuration, beholding our own presence before them. Bust on the other hand is an outlier amongst Beasley’s oeuvre in that there are two different configurations that the sculpture can take. A dye-sublimated printed t-shirt combines with the extant rigidity of a motocross neck brace as well as a cervical neck collar, the latter ascribed to just the given name of Charles, thus intimating an intimacy. Like Lam’s poem, Beasley’s title is both noun and verb. Bust simultaneously suggests casting and catastrophe, underscoring the fragility of bodies against the force of industrial objects and the chemicals that constitute them. Mahshid Rafiei’s practice enmeshes process, material, and image leaving an entanglement for the viewer to either parse out or prise apart. In many of Rafiei’s most recent works, extant objects are subject to her assembly, but with trace (2020) she offers an inversion of this appropriation with the possibility of her own object to be repurposed as a tool for reproduction. trace like the title of works by Lam and Beasley, tethers together verb and noun. A sheet of tracing vellum folded into quadrants inscribed with a heavy layer of graphite, it also collapses distinctions between drawing and sculpture. Its title indicates its possible role in the drafting process and is also a reference to the process of its production. Graphite is a familiar medium, often offering one of the earliest opportunities for inscription. When encountering the dense composition of trace, tactile knowledge of mark making reveals the layered temporality of its production An assertion against autonomy, the scores of Ghislaine Leung are context-contingent as opposed to site-specific. Produced through a process of negotiation with the exhibition organizers, central to this exchange is an acknowledgement of the labour of art production required that exists with or without the artist. This includes Toons (2019). Gloss white paint is applied to all the internal walls of the exhibiting gallery and the sheen of this dominant surface gathers reflections. Primarily these come from the lustre of overhead lighting, positioned in each space to provide an even appearance in the most unregulated of economies. But in the configuration of this curatorial proposition, a glow also pools from the proximity of Toons to IKNOWVERYWELLBUTNEVERTHELESS. Flags (2019) is a separate score that could be seen as a companion to Toons, taking a different architectural feature of the gallery and the opposite colour as material. Gloss black paint is applied to the internal facing doors. They could signal storage or may provide access to an office. But each time they indicate a way out. - Jacob Korczynski 1. Moten, Fred. “Preface,” in Black and Blur, Duke University Press, Durham and London, 2017, p. vii. 2. Zolf, Syd. No One’s Witness: A Monstrous Poetics, Duke University Press, Durham and London, 2021, p. 21. 3. Rainer, Yvonne, “Labor Day Faces,” in Poems, Badlands Unlimited, New York, 2011, p. 52
Statistical methods for handling missing data
No full textThis thesis was scanned from the print manuscript for digital preservation and is copyright the author.
Researchers can access this thesis by asking their local university, institution or public library to
make a request on their behalf. Monash staff and postgraduate students can use the link in the References field
The Conceptual Model of Efficient Markets in Information Databases in Iran
No full textThe main purpose of this article is to conceptually model market efficiency of information databases in Iran. In order to achieve that, summarizing content analysis techniques was used by reviewing literatures and exploratory interviews. The study population in interviews consists of brokers selling databases in Iran. The bibliographical research has been done on efficient market related publications published in the 5-year period of 2011-2015, indexed on Science Direct, ProQuest and EBSCO information databases. It was found that fourth categories for information database efficient markets: Linearity is most important and then to order, are logic and rationality, and Information-centric, trading volume reached fourth place, so one can say the information database markets are efficient and therefore author(s) traced the conceptual model of efficient markets in Information Databases in Iran.</p
The sensitivity enhancement of TiO<sub>2</sub>-based VOCs sensor decorated by gold at room temperature
No full textDetection of hazardous toxic gases for air pollution monitoring and medical diagnosis has attracted the attention of researchers in order to realize sufficiently sensitive gas sensors. In this paper, we fabricated and characterized a Titanium dioxide (TiO2)-based gas sensor enhanced using the gold nanoparticles. Thermal oxidation and sputter deposition methods were used to synthesize fabricated gas sensor. X-ray diffraction analysis was used to determine the anatase structure of TiO2samples. It was found that the presence of gold nanoparticles on the surface of TiO2enhances the sensitivity response of gas sensors by up to about 40%. The fabricated gas sensor showed a sensitivity of 1.1, 1.07 and 1.03 to 50 ppm of acetone, methanol and ethanol vapors at room temperature, respectively. Additionally, the gold nanoparticles reduce 50 s of response time (about 50% reduction) in the presence of 50 ppm ethanol vapor; and we demonstrated that the recovery time of the gold decorated TiO2sensor is less than 40 s. Moreover, we explain that the improved performance depends on the adsorption-desorption mechanism, and the chemical sensitization and electronic sensitization of gold nanoparticles.Electronic Components, Technology and Material
The Management of Complexities, Conflicts and Uncertainties in the Border County of Ghasr-e Shirin Using Strategic Choice Approach (corresponding author)
No full textIn recent years, the policy of attracting population to border areas and strengthening the security of these areas by residents has been adopted by the Government. Located in the west Iranian Kermanshah province, Ghasr-e Shirin county is one of the areas earmarked for the implementation of this policy. Planning the development of this county faces complexities, conflicts and uncertainties, which must be taken into account in order to adapt the plan to realities and appropriately implement it. The Strategic Choice approach, makes it possible to manage complexities, conflicts and uncertainties in the decision-making process and its product in a balanced position. It is done through the application of simple and clear techniques in a cyclic process including four modes of configuration, design, comparison and choice. Bearing in mind the tendency of recent Iranian urban and regional planning system towards strategic planning, and thereby neglecting complexities, conflicts and uncertainties in mainstream plans, the strategic choice approach is adopted here as a methodology to plan the development of Ghasr-e Shirin border county, with its mainly qualitative techniques employed based on scientific, logical methods. This research intends to show how complexities, conflicts and uncertainties are managed in planning the development of Ghasr-e Shirin county. The areas concerning each of these issues have been identified at specific stages and in the decision-making process, as well as in designing the progress package as the end product. Balances have been struck according to the problem situation. Facing the complexities of the decision-making process, a more elaborate, narrowly focused approach is adopted as opposed to a simplistic treatment less focused alternative; and in the end product, a sequence of slow and steady steps has been designed according to the decision links. In order to manage the conflicts in the management of process and product, a more interactive treatment has been preferred to a more reactive treatment, with the uncertainties managed through the acceptance or reduction of uncertainties based on the flexibility of the decision-making proces
