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Search: WFRF:(Halim A.)

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2.
  • Abdalla, H., et al. (author)
  • Sensitivity of the Cherenkov Telescope Array for probing cosmology and fundamental physics with gamma-ray propagation
  • 2021
  • In: Journal of Cosmology and Astroparticle Physics. - : Institute of Physics Publishing (IOPP). - 1475-7516. ; :2
  • Journal article (peer-reviewed)abstract
    • The Cherenkov Telescope Array (CTA), the new-generation ground-based observatory for gamma-ray astronomy, provides unique capabilities to address significant open questions in astrophysics, cosmology, and fundamental physics. We study some of the salient areas of gamma-ray cosmology that can be explored as part of the Key Science Projects of CTA, through simulated observations of active galactic nuclei (AGN) and of their relativistic jets. Observations of AGN with CTA will enable a measurement of gamma-ray absorption on the extragalactic background light with a statistical uncertainty below 15% up to a redshift z = 2 and to constrain or detect gamma-ray halos up to intergalactic-magnetic-field strengths of at least 0.3 pG. Extragalactic observations with CTA also show promising potential to probe physics beyond the Standard Model. The best limits on Lorentz invariance violation from gamma-ray astronomy will be improved by a factor of at least two to three. CTA will also probe the parameter space in which axion-like particles could constitute a significant fraction, if not all, of dark matter. We conclude on the synergies between CTA and other upcoming facilities that will foster the growth of gamma-ray cosmology.
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3.
  • Al Kharusi, S., et al. (author)
  • SNEWS 2.0 : a next-generation supernova early warning system for multi-messenger astronomy
  • 2021
  • In: New Journal of Physics. - : IOP Publishing. - 1367-2630. ; 23:3
  • Research review (peer-reviewed)abstract
    • The next core-collapse supernova in the Milky Way or its satellites will represent a once-in-a-generation opportunity to obtain detailed information about the explosion of a star and provide significant scientific insight for a variety of fields because of the extreme conditions found within. Supernovae in our galaxy are not only rare on a human timescale but also happen at unscheduled times, so it is crucial to be ready and use all available instruments to capture all possible information from the event. The first indication of a potential stellar explosion will be the arrival of a bright burst of neutrinos. Its observation by multiple detectors worldwide can provide an early warning for the subsequent electromagnetic fireworks, as well as signal to other detectors with significant backgrounds so they can store their recent data. The supernova early warning system (SNEWS) has been operating as a simple coincidence between neutrino experiments in automated mode since 2005. In the current era of multi-messenger astronomy there are new opportunities for SNEWS to optimize sensitivity to science from the next galactic supernova beyond the simple early alert. This document is the product of a workshop in June 2019 towards design of SNEWS 2.0, an upgraded SNEWS with enhanced capabilities exploiting the unique advantages of prompt neutrino detection to maximize the science gained from such a valuable event.
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4.
  • Terracciano, A, et al. (author)
  • National character does not reflect mean personality trait levels in 49 cultures
  • 2005
  • In: Science. - : American Association for the Advancement of Science (AAAS). - 1095-9203 .- 0036-8075. ; 310:5745, s. 96-100
  • Journal article (peer-reviewed)abstract
    • Most people hold beliefs about personality characteristics typical of members of their own and others' cultures. These perceptions of national character may be generalizations from personal experience, stereotypes with a "kernel of truth," or inaccurate stereotypes. We obtained national character ratings of 3989 people from 49 cultures and compared them with the average personality scores of culture members assessed by observer ratings and self-reports. National character ratings were reliable but did not converge with assessed traits. Perceptions of national character thus appear to be unfounded stereotypes that may serve the function of maintaining a national identity.
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5.
  • Halim, Jhoorhanah A., et al. (author)
  • Non-invasive Digital Refractometer to Measure Maturation of Climacteric Fruits
  • 2023
  • In: ASEAN Journal on Science and Technology for Development. - : University of Brunei Darussalam. - 0217-5460 .- 2224-9028. ; 40:3, s. 167-173
  • Journal article (peer-reviewed)abstract
    • Sugar content is a superior quality indicator for the post-harvesting and ripening status of climacteric fruits. Total soluble solids (TSS) represented by ∘Brix index is a measure of the sugar content. The conventional way to measure TSS is by invasive (IN) technique using manual or digital refractometers. While non-invasive (NIN) infrared refractometer devices have been developed in recent years for various agricultural and food science applications, its accuracy to measure fruit TSS directly is not straightforward, as the device is only dedicated to uses for a specific fruit. This study aims to investigate the suitability of the use of a non-invasive refractometer to measure TSS directly for some post harvested fruits. For comparison, a conventional invasive digital refractometer was also used. Red apples and green apples were used as a reference, while tests were done on bananas, mangos, red pears, golden pears and sapodillas. Among the fruit samples, red pear is the only fruit whose TSS can be measured using the non-invasive refractometer accurately, whereas the device is not suitable for the other fruits due to the significant percentage error and inapplicable corrective calibration value which may lead to a limited prediction of TSS content values.
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7.
  • Leymarie, N., et al. (author)
  • Interlaboratory Study on Differential Analysis of Protein Glycosylation by Mass Spectrometry: The ABRF Glycoprotein Research Multi-Institutional Study 2012
  • 2013
  • In: Molecular & Cellular Proteomics. - 1535-9476. ; 12:10, s. 2935-2951
  • Journal article (peer-reviewed)abstract
    • One of the principal goals of glycoprotein research is to correlate glycan structure and function. Such correlation is necessary in order for one to understand the mechanisms whereby glycoprotein structure elaborates the functions of myriad proteins. The accurate comparison of glycoforms and quantification of glycosites are essential steps in this direction. Mass spectrometry has emerged as a powerful analytical technique in the field of glycoprotein characterization. Its sensitivity, high dynamic range, and mass accuracy provide both quantitative and sequence/structural information. As part of the 2012 ABRF Glycoprotein Research Group study, we explored the use of mass spectrometry and ancillary methodologies to characterize the glycoforms of two sources of human prostate specific antigen (PSA). PSA is used as a tumor marker for prostate cancer, with increasing blood levels used to distinguish between normal and cancer states. The glycans on PSA are believed to be biantennary N-linked, and it has been observed that prostate cancer tissues and cell lines contain more antennae than their benign counterparts. Thus, the ability to quantify differences in glycosylation associated with cancer has the potential to positively impact the use of PSA as a biomarker. We studied standard peptide-based proteomics/glycomics methodologies, including LC-MS/MS for peptide/glycopeptide sequencing and label-free approaches for differential quantification. We performed an interlaboratory study to determine the ability of different laboratories to correctly characterize the differences between glycoforms from two different sources using mass spectrometry methods. We used clustering analysis and ancillary statistical data treatment on the data sets submitted by participating laboratories to obtain a consensus of the glycoforms and abundances. The results demonstrate the relative strengths and weaknesses of top-down glycoproteomics, bottom-up glycoproteomics, and glycomics methods. T6G 2G2, Canada. [Cipollo, John F.; An, Yanming] US FDA, Ctr Biol Evaluat & Res, Bethesda, MD 20993 USA. [Desaire, Heather; Go, Eden P.] Univ Kansas, Lawrence, KS 66045 USA. [Goldman, Radoslav; Pompach, Petr; Sanda, Miloslav] Georgetown Univ, Dept Oncol, Washington, DC [Halim, Adnan; Larson, Goran; Nilsson, Jonas] Univ Gothenburg, Sahlgrenska Acad, Dept Clin Chem & [Hensbergen, Paul J.; Wuhrer, Manfred] Leiden Univ, Med Ctr, Biomol Mass Spectrometry Unit, NL- [Jabs, Wolfgang; Marx, Kristina; Resemann, Anja; Schweiger-Hufnagel, Ulrike; Suckau, Detlev] Bruker [Ly, Mellisa; Staples, Gregory O.] Agilent Technol, Agilent Labs, Santa Clara, CA 95051 USA. [Mechref, Yehia; Song, Ehwang] Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA. [Nyalwidhe, Julius O.; Watson, Megan] Eastern Virginia Med Sch, Leroy T Canoles Jr Canc Res Ctr, Dept [Packer, Nicolle H.; Thaysen-Andersen, Morten] Macquarie Univ, Dept Chem & Biomol Sci, Biomol [Sihlbom, Carina] Gothenburg Univ, Prote Core Facil, Gothenburg, Sweden. [Tang, Haixu] Indiana Univ, Sch Informat, Bloomington, IN 47405 USA. [Valmuv, Leena] Finnish Red Cross Blood Serv, Helsinki 00310, Finland. [Wada, Yoshinao] Osaka Med Ctr Maternal & Child Hlth, Res Inst, Izumi Ku, Osaka 5941101, Japan.
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9.
  • Andrady, Anthony, et al. (author)
  • Environmental effects of ozone depletion and its interactions with climate change: Progress report, 2016
  • 2017
  • In: Photochemical and Photobiological Sciences. - : Springer Science and Business Media LLC. - 1474-9092 .- 1474-905X. ; 16:2, s. 107-145
  • Journal article (peer-reviewed)abstract
    • The Parties to the Montreal Protocol are informed by three Panels of experts. One of these is the Environmental Effects Assessment Panel (EEAP), which deals with two focal issues. The first focus is the effects of UV radiation on human health, animals, plants, biogeochemistry, air quality, and materials. The second focus is on interactions between UV radiation and global climate change and how these may affect humans and the environment. When considering the effects of climate change, it has become clear that processes resulting in changes in stratospheric ozone are more complex than previously believed. As a result of this, human health and environmental issues will be longer-lasting and more regionally variable. Like the other Panels, the EEAPproduces a detailed report every four years; the most recent was published as a series of seven papers in 2015 (Photochem. Photobiol. Sci., 2015, 14, 1–184). In the years in between, the EEAP produces less detailed and shorter Progress Reports of the relevant scientific findings. The most recent of these was for 2015 (Photochem. Photobiol. Sci., 2016, 15, 141–147). The present Progress Report for 2016 assesses some of the highlights and new insights with regard to the interactive nature of the direct and indirect effects of UV radiation, atmospheric processes, and climate change. The more detailed Quadrennial Assessment will bemade available in 2018.
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10.
  • Halim, Sharif A., et al. (author)
  • Frequency, clinical and angiographic characteristics, and outcomes of high-risk non-ST-segment elevation acute coronary syndromes patients with left circumflex culprit lesions
  • 2016
  • In: International Journal of Cardiology. - : Elsevier BV. - 0167-5273 .- 1874-1754. ; 203, s. 708-713
  • Journal article (peer-reviewed)abstract
    • Background: The relationship between culprit vessel, infarct size, and outcomes in non-ST-segment elevation acute coronary syndromes (NSTE ACS) is unclear. In some reports, the left circumflex artery (LCX) was more often the culprit at angiography than the right coronary artery (RCA) or left anterior descending artery (LAD), and infarcts were larger with LCX culprits. Methods: We determined culprit vessel frequency and initial patency (TIMI flow grade), median fold elevation of peak troponin above the upper limit of normal, and outcomes (30-day death or myocardial infarction [MI] and 1-year mortality) by culprit vessel in high-risk NSTE ACS patients in the EARLY ACS trial. Results: Of 9406 patients, 2066 (22.0%) had angiographic core laboratory data. We evaluated 1774 patients for whom the culprit artery was not the left main, a bypass graft, or branch vessel. The culprit was the LCX in 560 (31.6%), LAD in 653 (36.8%), and RCA in 561 (31.6%) patients. There were fewer women (24.1%) and more prior MI (25.5%) among patients with a culprit LCX compared with those with a culprit LAD or RCA. Patients with LCX (21.2%) and RCA (27.5%) culprits more often had an occluded artery (TIMI 0/1) than did those with LAD (11.3%). Peak troponin elevation was significantly higher for LCX than RCA or LAD culprits. LCX culprit vessels were not associated with worse 30-day or 1-year outcomes in adjusted models. Conclusions: Among patientswith NSTE ACS, the frequencies of LCX, LAD, and RCA culprits were similar. Although LCX lesions were associated with higher peak troponin levels, there was no difference in short-or intermediateterm outcomes by culprit artery.
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  • Result 1-10 of 80
Type of publication
journal article (73)
conference paper (5)
research review (1)
book chapter (1)
Type of content
peer-reviewed (74)
other academic/artistic (6)
Author/Editor
Halim, Joseph (21)
Rosén, Johanna (20)
Persson, Per O A (18)
Abdel-Halim, SM (16)
Efendic, S (13)
Palisaitis, Justinas (13)
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Guenifi, A (10)
Hultman, Lars (7)
Persson, Ingemar (7)
Lu, Jun (6)
OSTENSON, CG (5)
Dalal, Koustuv (4)
Halim, Abdul (4)
El Ghazaly, Ahmed (4)
Gronberg, H (4)
Neal, DE (4)
Lindholm, P (3)
Halim, A. (3)
Ahren, B (3)
Lind, Hans (3)
Abdullah, Abu Sayeed ... (3)
Lindberg, J (3)
Grimelius, L (3)
Eklund, Per (3)
Rodriguez-Wallberg, ... (3)
Raab, C. (2)
Khan, A. (2)
Partl, Manfred (2)
Vigorito, C. F. (2)
Abdel-Halim, S M (2)
Andersson, A (2)
He, B (2)
Yang, B (2)
Hillert, J (2)
Pernow, J (2)
Biswas, Animesh (2)
Warren, AY (2)
Falkmer, S. (2)
Kay, J. (2)
Bruchfeld, J (2)
Dalal, Koustuv, 1969 ... (2)
Hellström, Per M. (2)
Rahman, F. (2)
Lynch, AG (2)
Cooper, CS (2)
Webb, Dominic-Luc (2)
Wagner, Jakob B. (2)
Sundbom, M. (2)
Naslund, E (2)
Sundberg, CJ (2)
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University
Karolinska Institutet (33)
Linköping University (25)
Uppsala University (14)
Örebro University (6)
Umeå University (5)
Luleå University of Technology (5)
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Mid Sweden University (5)
Lund University (4)
University of Gothenburg (2)
Royal Institute of Technology (2)
Stockholm University (2)
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Högskolan Dalarna (1)
Swedish University of Agricultural Sciences (1)
Red Cross University College (1)
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Language
English (80)
Research subject (UKÄ/SCB)
Natural sciences (28)
Medical and Health Sciences (15)
Engineering and Technology (8)
Agricultural Sciences (1)
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