1,277 research outputs found
Lil Dr. Nicolò Zammit, M.D.
No full textĠabra ta’ poeżiji u proża li tinkludi: Il-Milied ta’ C. Cassar – Storja qasira dwar il-presepju ta’ A. Tabone – Lil Dr. Nicolò Zammit, M.D. ta’ Patri Ġ. Delia – Jum tax-xita f’Mejju ta’ Joe Busuttil.peer-reviewe
Hepatitis C : an emerging concern
No full textHepatitis C has surfaced worldwide as a formidable concern to public health. Recent developments have sharpened methods of serological detectability, epidemiological study and patient treatment. In the light of the global situation, this article briefly presents known local epidemiology about hepatitis C derived from routine data and personal communication from some key workers. The occurrence of a serious, potentially progressive, transmissible condition in a young population will incur high-costs to patients, contacts and care services. The article concludes by highlighting the areas offering greatest scope to check this condition through prevention and patient management.peer-reviewe
Ulva L. biodiversity in the central Mediterranean Sea: cryptic species and new records
No full textBartolo, Angela G., Zammit, Gabrielle, Küpper, Frithjof C. (2022): Ulva L. biodiversity in the central Mediterranean Sea: cryptic species and new records. Cryptogamie, Algologie 20 (14): 215-225, DOI: 10.5252/cryptogamie-algologie2022v43a14, URL: http://dx.doi.org/10.5252/cryptogamie-algologie2022v43a1
A Green Approach for the Intramolecular Friedel-Crafts Acylation
No full textThe Friedel-Crafts acylation is one of the most utilised methods for C-C bond formation in aromatic chemistry.1 The development of an environmentally-benign and economically-feasible pathway of the Friedel-Crafts reaction is of great value and highly desired, particularly in the pharmaceutical industry wherein the acylation reaction is extensively employed.2 In this study, the intramolecular Friedel-Crafts acylations of different aryl substituted carboxylic acids were investigated under environmentally-friendly heterogeneous solid catalysis3 in order to obtain the corresponding cyclic aromatic ketones, which are widely recognized as useful synthetic intermediates in various industrial fields, particularly drugs. Preliminary conditions and results will be presented
Pulsed infrared thermography applied to quantitative characterization of the structure and the casting faults of the Capitoline She Wolf
No full textPulsed infrared thermography was applied to the analysis of the Capitoline She Wolf bronze statue, in the collection of the Musei Capitolini in Rome. We show how it can be used to study the bronze alloy properties and several subsurface and structural features of the statue such as casting faults and repairs providing information useful to recover the steps of the manufacturing process. In particular, the thermal diffusivity of the alloy was determined and quantitative evaluations were carried out concerning the thickness of the bronze in various parts of the statue, the depth of cavities originating from air bubbles in the casting melt and the profile of the contact area of some patches applied to mend gaps left after the casting process. Finally the obtained thermal diffusivity value was discussed in relation to the actual bronze composition of the She Wolf statue and it was shown to be consistent with the trend of values expected for different copper alloy compositions
Safety of plasma-derived protein C for treating disseminated intravascular coagulation in adult patients with active cancer.
No full textIntegrated adiabatic scanning calorimetry, light transmission and imaging analysis of collagen deterioration in parchment
No full text© 2019 Elsevier B.V. The collagen denaturation process in several artificially aged modern parchment samples were studied by combining Adiabatic Scanning Calorimetry and Light Transmission Analysis investigations. It was found that the calorimetric evaluations enabled not only to confirm the previously reported specific heat results concerning the collagen denaturation peaks, but also to identify a novel broad feature most likely associated with additional transformations occurring once denaturation takes place. Moreover, the combination of the investigations by the two adopted techniques allowed to validate the Light Transmission Analysis as a novel simple method capable of recording the entire collagen denaturation temperature path of the analyzed samples. Finally, the polarization microscopy imaging, performed simultaneously with the optical transmission characterization, enabled to perform a direct correlation of the morphology changes of the parchment with the different stages of the collagen denaturation.status: Publishe
Non-contact photopyroelectric approach for complete thermal characterization of porous building materials
No full textThe suitability of two photopyroelectric (PPE) methods for measuring the thermal diffusivity and effusivity of porous solids is described. The main characteristic of both methods, associated with the possibility of investigating porous solids, is the absence of coupling fluid between the pyroelectric sensor and sample. The first method (proposed initially by Salazar et al., Measurement 121, 96 (2018) [1]) relies on the front detection configuration with opaque pyroelectric sensor and thermally thick sample. Based on the phase frequency scan of the PPE signal, this method leads to the direct measurement of the sample's thermal effusivity. The second method (proposed initially by Zammit et al., J. Appl. Phys. 117, 105,104 (2015) [2]) is based on two successive measurements (frequency scans), one in back and one in front PPE configuration, followed by a self-normalization of the phase vs. modulation frequency dependence. This method uses transparent pyroelectric sensor and backing material, allowing the direct measurement of the sample thermal diffusivity. In the paper, both methods were adapted and improved for investigating some porous building materials of interest: old bricks with unknown values of thermal parameters
Qalb
No full textĠabra ta’ poeżiji u proża li tinkludi: Mituli ħuti ta’ J. M. Manara – Dlam ta’ George Stevens – Il-qalb ta’ George Zammit – L-arloġġ ta’ C. Cassar – Addio, Manwel!... ta’ Nikol Biancardi – Ħsibijiet ta’ Emanuel Agius.N/
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