254 research outputs found
The measurement of household cost functions: Revealed preference versus subjective measures
No full textHousehold Economics;Costs
Neutron transport in WIMS by the characteristics method
No full textThe electron Volt spectrometer (eVS) is an inverse geometry filter difference spectrometer that has been optimised to measure the single atom properties of condensed matter systems using a technique known as neutron compton scattering (NCS) or deep inelastic neutron scattering (DINS). The spectrometer utilises the high flux of epithermal neutrons that are produced by the ISIS neutron spallation source enabling the direct measurement of atomic momentum distributions and ground state kinetic energies. In this paper the procedure that is used to calibrate the spectrometer is described . This includes details of the method used to determine detector positions and neutron flight path lengths as well as the determination of the instrument resolution. Examples of measurements on 3 different samples are shown, ZrH_2, "4He and Sn which show the self-consistency of the calibration procedure. (author)SIGLEAvailable from British Library Document Supply Centre-DSC:9091.900(AEA-RS 5572) / BLDSC - British Library Document Supply CentreGBUnited Kingdo
AEA Ideology: Campaign Contributions of American Economic Association Members, Committee Members, Officers, Editors, Referees, Authors, and Acknowledgees
No full textThis paper investigates the 2004-election-cycle campaign contributions of the leadership of the American Economic Association. By cross-checking a name with an occupation, employer, and address, I develop a contribution profile for a sample of 2,000 AEA members, then use this profile as a benchmark to examine contributions of editors, referees, authors, and acknowledgees of the 2003 and 2004 issues of the American Economic Review, Journal of Economic Literature, and Journal of Economic Perspectives. Association members were 5 times more likely to give to Democrats than to Republicans. American Economic Review authors appearing in regular issues were about 9 times more likely. Authors in the discretionary AEA publications were 38 times more likely. I find that in those publications where the editors have more discretion in choosing authors, author contributions look more like those of the editors and less like those of the members. For the various forms of leadership—officers, committee members, and editors—I generally find ratios more lopsided than among the regular membership. Remarkably few contributed to Republican campaigns. Such ratios challenge the American Economic Association’s claim that “widely different issues are given a hearing in its annual meetings and through its publication,†and its suggestion that the Association represents “people of all shades of economic opinion.â€American Economic Association,Democrat,Republican,campaign contribution,contributor ratio,editors,authors,referees,acknowledgees,committee members,officers,American Economic Review,Journal of Economic Literature,Journal of Economic Perspectives
On New Constructs in Art: Structure, Time, Correspondences and Interaction
No full textThe paper provides a personal view of the implications of compntational concepts and technologies on art practice. It draws upon 40 years of such practice by the author, As the title implies, the paper concentrates on the themes of structure within the artwork, time-based art, correspondences between different media that the computer enables, and interaction with the audience. The paper draws a line from Malevich to present day art employing computation
Improving freeze-thaw resistance of alkali-activated slag by admixtures
No full textAlkali-activated material (AAM) is one of the most attractive alternatives to ordinary Portland cement (OPC). Recently, more and more research interests are devoted to durability performance. In cold areas, freeze-thaw resistance is a crucial durability factor for concrete. However, the understanding of the freeze-thaw resistance of AAMs is minimal. Accordingly, the subject of this thesis is drawn forth. The main aim of this study was to investigate the effects and mechanisms of using admixtures (SAP and AEA) to improve the freeze-thaw resistance of alkali-activated slag (AAS). Regarding the general properties, such as workability and mechanical properties, it was found that the influence of adding SAP or AEA is acceptable. Then, the air-void systems created by SAP and AEA were reconstructed and characterized by the micro-CT scan. It was found that both SAP and AEA successfully entrained air voids into AASM, while the characteristics of the resultant air-void system were quite different. Further analysis on the surface condition of AASM undergoing 28-day sealed curing or preconditioning procedures in the CDF test, and the ASTM C672 test revealed that AASM shows a considerable surface microcracking potential. Samples sealed for 28 days showed a considerable extent of microcracking due to autogenous shrinkage. Samples that underwent 14-day drying after 7/14 days’ curing showed significant microcracking due to autogenous shrinkage and drying shrinkage. With the addition of SAP, the cracking caused by autogenous shrinkage was minimized, but the cracking caused by drying was only slightly reduced. With the addition of AEA, there was only a minor improvement in surface integrity. The freeze-thaw resistance of AASM with or without the addition of SAP or AEA was investigated in the form of surface scaling damage by a modified CDF test. Plain AASM showed poor surface scaling resistance mainly attributed to the pre-existing surface microcracking. The addition of SAP and AEA successfully improved the surface scaling resistance of AASM. The improvement was more significant by adding SAP due to the effect of improving surface integrity. Based on the SAP mixtures, a good correlation was found between the SAP air-void system and the resultant surface scaling resistance. The final cumulative surface scaling generally decreased with higher entrained air content, denser air voids distribution, and smaller air voids size. A preliminary logarithm model was developed for the relationship between the reduction in surface scaling and the equivalent water/binder ratio and the air-void system. Finally, upscaling tests on the concrete scale also found that the addition of SAP improved the surface scaling resistance of AASC.Overall, in this study, the freeze-thaw resistance of AAS was successfully improved by the SAP and AEA. The effects of adding SAP/AEA and the related factors on the selected properties of AASM were revealed. The mechanisms behind these observations were also understood and generated a series of further research possibilities. It is hoped that these findings and observations can give some guidance to the industrial applications of AAS and some inspiration to the scientific community.Civil Engineering | Structural Engineerin
Penerapan Asas Proporsionalitas Dalam Materi Kontrak Baku Tenaga Kesehatan Yang Dipersiapkan Oleh Pt. Aea Di Jakarta / oleh Valeria Dinar Wita Asmarani
No full textPadatesisini, penulismengangkatpermasalahanmengenaipenerapanasasproporsionalitasdalammateri kontrak baku tenaga kesehatan yang dipersiapkan PT. AEA di Jakarta.Pemilihantematersebutdilatarbelakangiadanyaketidakpastian pembagian hak dan kewajiban antara para pihak sehingga dapatmendorongterjadinyaisu-isu hukum dalam kaitannya dengan pelaksanaan kontrak baku tersebut. Penelitian ini mengggunakan metode normatif, di mana data yang di gunakan berupa materikontrakbaku dan beberapa peraturan yang terkait dalam perjanjian bisnis, serta hubungan hukum antara para pihak, berisi hak dan kewajiban para pihak yang terlibat dalam perjanjian. Penerapanasasproporsionalitas yang memberikan keseimbangan antara hak dan kewajiban para pihak yang berkontrak sehinggaterwujudnyasuatukepastianbagi para pihakdalampelaksanaankontrakperludiperhatikanpenggunaannyadalamkontrak, serta dalam hubungannya dengan asas kebebasanberkontrakdanasasitikadbaikyang memberikankeberaniandalambernegosiasi. ABSTRACT Title : The Application of Proportionality in Agreement for Medical Staffing Prepared By PT. AEA in Jakarta Name: Valeria Dinar Wita Asmarani Keywords: Raw Material Contract, Freedom of Contract principle, Principle ofProportionality, Principle of Good Intention. In this thesis, the author raised concerns about the application of the principle of proportionality in the raw material contracts of medical staffing which is prepared by PT. AEA in Jakarta. The selection of these themes against the backdrop of the uncertainty distribution of rights and obligations between the parties so that it can lead to legal issues in relation to the implementation of the standard contract. This study normative use traditional methods, in which data is used in the form of a standard contract and related regulations in the employment agreement. Legal relationship between the parties, contains the rights and obligations of the parties involved in the agreement. Application of the principle of proportionality which provide a balance between the rights and obligations of the parties to contract so that the realization of a certainty for the parties in the implementation of the contract need to be considered its use in the contract, and in conjunction with the principle of freedom of contract and the principle of good faith which gives courage to negotiate
Relation between anterior ethmoidal artery course on computed tomography and supraorbital ethmoid cell and Keros classification
No full textPurpose The anterior ethmoidal artery (AEA) is an important risk area in endoscopic sinus surgery. This study aimed to evaluate the course of AEA according to the Keros classification and the presence of supraorbital ethmoid cell (SOEC) and to prevent possible complications by emphasizing the importance of preoperative paranasal computed tomography (CT) imaging. This approach will increase the effectiveness of endoscopic sinus surgery and improve patient safety.Methods The paranasal CT scan images of patients aged > 18 years between October 2020 and November 2021 from our center were retrospectively analyzed. The images were primarily evaluated in the coronal plane, and the sagittal and axial planes were utilized to evaluate variations in AEA regarding the skull base. Furthermore, the relation of AEA course with Keros classification and SOEC was evaluated. The study included 1000 patients aged 18-80 years (right and left, a total of 2000 samples).Results Grade 3 AEA was the most common regarding the skull base. Keros Type 2 was the most common classification. Overall, 48.7% patients had SOEC. The incidence of Grade 3 AEA was higher among patients with SOEC and a higher Keros classification compared with those without SOEC and a lower Keros classification. Furthermore, Keros Type 3 was the most associated with SOEC presence.Conclusion Consistent with the literature, the probability of Grade 3 AEA in patients with high Keros classification and SOEC was significantly higher in our study. Therefore, we consider that preoperative imaging according to Keros classification and SOEC presence can predict AEA course and guide surgery
1 ' S-1 '-acetoxyeugenol acetate: a novel phenylpropanoid from Alpinia conchigera enhances the apoptotic effects of paclitaxel in MCF-7 cells through NF-kappa B inactivation
No full textIn this study, the apoptotic mechanism and combinatorial chemotherapeutic effects of the cytotoxic phenylpropanoid compound 1'S-1'-acetoxyeugenol acetate (AEA), extracted from rhizomes of the Malaysian ethnomedicinal plant Alpinia conchigera Griff. (Zingiberaceae), on MCF-7 human breast cancer cells were investigated for the first time. Data from cytotoxic and apoptotic assays such as live and dead and poly-(ADP-ribose) polymerase cleavage assays indicated that AEA was able to induce apoptosis in MCF-7 cells, but not in normal human mammary epithelial cells. A microarray global gene expression analysis of MCF-7 cells, treated with AEA, suggested that the induction of tumor cell death through apoptosis was modulated through dysregulation of the nuclear factor-kappaB (NF-kappa B) pathway, as shown by the reduced expression of various kappa B-regulated gene targets. Consequent to this, western blot analysis of proteins corresponding to the NF-kappa B pathway indicated that AEA inhibited phosphorylation levels of the inhibitor of kappa B-kinase complex, resulting in the elimination of apoptotic resistance originating from NF-kappa B activation. This AEA-based apoptotic modulation was elucidated for the first time in this study, and gave rise to the proposal of an NF-kappa B model termed the 'Switching/Alternating Model.' In addition to this, AEA was also found to synergistically enhance the proapoptotic effects of paclitaxel, when used in combination with MCF-7 cells, presumably by a chemosensitizing role. Therefore, it was concluded that AEA isolated from the Malaysian tropical ginger (A. conchigera) served as a very promising candidate for further in-vivo development in animal models and in subsequent clinical trials involving patients with breast-related malignancies. Anti-Cancer Drugs 22:424-434 (C) 2011 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins
Incorporation Of Crumb Rubber And Air-Entraining Agent In Ultra-Lightweight Cementitious Composite: Evaluation Of Mechanical And Acoustic Properties
No full textThis research describes the usage of crumb rubber (CR) and air-entraining agent (AEA) to further reduce the density of lightweight cementitious composite into ultra-lightweight cementitious composites (ULCC), which has density lower than 800 kg/m3. The effects of CR and AEA on workability, compressive strength, flexural strength, sound absorption and sound transmission loss of ULCC are evaluated. The dry densities of the ULCC produced are in the range of 711–857 kg/m3. Compared with the control mix, the addition of 1% of AEA and inclusion 15% of CR have similar effect in reducing the density of ULCC, where the density is reduced by about 15%. Despite the decreased mechanical strength with the use of CR, the ULCC still possess good flexural strength of 2.4 MPa without AEA. Furthermore, the effect of CR is more significant than AEA in improving the sound absorption average (SAA) of ULCC which the SAA of the control mix is increased by 61.3%. Overall, the combination of CR and AEA reduced the density and improved the acoustic performance of ULC
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