2,163 research outputs found
Cold Dark Matter and Neutralinos
Neutralinos are natural candidates for cold dark matter in many realizations
of supersymmetry. We briefly review our recent results in the evaluation of
neutralino relic abundance and direct detection rates in a class of
supergravity models.Comment: 4 pages, 4 figures, uses espcrc2.sty. Proc. of "Sources and detection
of dark matter and dark energy in the Universe (DM2002)". The version on the
archive has low-resolution figures. The paper with high-resolution figures
can be found at
http://www.to.infn.it/~fornengo/proceedings/marinadelrey02.ps.gz or through
http://www.to.infn.it/astropart
Observations of annual modulation in direct detection of relic particles and light neutralinos
The long-standing model-independent annual modulation effect measured by the
DAMA Collaboration, which fulfills all the requirements of a dark matter annual
modulation signature, and the new result by the CoGeNT experiment that shows a
similar behavior are comparatively examined under the hypothesis of a dark
matter candidate particle interacting with the detectors' nuclei by a coherent
elastic process. The ensuing physical regions in the plane of the dark
matter-particle mass versus the dark matter-particle nucleon cross-section are
derived for various galactic halo models and by taking into account the impact
of various experimental uncertainties. It is shown that the DAMA and the CoGeNT
regions agree well between each other and are well fitted by a supersymmetric
model with light neutralinos which satisfies all available experimental
constraints, including the most recent results from CMS and ATLAS at the CERN
Large Hadron Collider.Comment: 13 pages, 7 figure
Analisis Framing Pemberitaan Basuki Tjahaja Purnama (Ahok) Pada Pemilihan Gubernur DKI Jakarta 2017 Di Media Tempo.co Dan Detik.com
PDIP's decision to carry Ahok showed the long journey of Ahok in Jakarta Governor Election 2017. In reporting of Ahok's news is the result of framed construction by media's reporters in accordance with the ideology and policy of Tempo.co and Detik.com. This research was conducted to see how Tempo.co and Detik.co construct Ahok's news when carried by PDIP and how ideology in the news media. This research aims to determine the construction and the news media in reporting Ahok ideology when carried PDIP in online media Tempo.co and Detik.comThis research is using the qualitative method with data collecting technique are documentation, book study and interview. Subjects of this research are the journalists and the editorial of Detik.com and Tempo.co. Objects of this research are the news about Ahok in Jakarta's Governor Election 2017 from 20 September until 22 September 2016. Data is analyzed by using framing analysis with Zhongdang Pan and Gerald M.Kosicki's model.The results of this research indicate that: (1) Detik.com news frame by taking the viewpoint of one of the parties who supporting Ahok, which is PDIP. (2) Tempo.co framing news from the perspective of responses and attitudes in decision of PDIP. (3) The News of Detik.com favoring the PDIP, while Tempo.co news is not balanced because it only uses one interviewees only and there is no element of cover both sid
Implementasi Kode Etik Jurnalistik Pada Foto Jurnalistik Dalam Rubrik Hukum Kriminal Di Portal Berita Goriau.com
Technological advances that teaches people to obtain information quickly, cheaply and efficiently and also supported by holding of the Press Oublishing Business License (SIUPP), making the height popping new news portal. So that the number of photos uploaded increasingly uncontrollable and disturbing the public. However, on the other hand, the press has a Journalistic Code of Ethics which is the main reference at the same spirit of the press to behave. This study aims to investigate the implementation of journalism code of ethics in journalism photo of Hukum Kriminal Rubric at GoRiau.com News Portal.This study uses descriptive analysis with qualitative approach. Research conducted at GoRiau.com News Portal, Surya Kartama Agung street 4Ath Pekanbaru. Through purposive sampling technique, the number of subjects in this study as many as seven (7) members. Technical analysis of the data using interactive data analysis model of Miles and Huberman.The results showed that; first, the implementation of Journalism code of ethics by GoRiau.com news portal not maximized. Proved by the number of uploads found journalism photo is considered quite sadistic, visible from the elements of blood on the photo. Then lewd photos where the photograph shows the lower part of the body that opens up almost to the vital organs, and does not follow the presumption of innocence. The portal is also inconsistent in presenting the news. Furthermore, the system boosts straight news reporters increasingly raising the level of negligence. Because no matter what, the press has a social responsibility to the government and society. Second, conditions Journalistic Code violations that do not have the sanction further debilitates the Journalistic Code of Ethics itself. Sanctions only found in the Press Law. Such circumstances should mobilize governments and communities to be more intelligent in responding to this phenomenon. Because in fact, social responsibility also embrace the government and the community to keep the continuity of GoRiau.com New Portal not to deviate from the rules applicable thus causing things that are not desirable
Temporal distortion of annual modulation at low recoil energies
We show that the main features of the annual modulation of the signal
expected in a WIMP direct detection experiment, i.e. its sinusoidal dependence
with time, the occurrence of its maxima and minima during the year and (under
some circumstances) even the one-year period, may be affected by relaxing the
isothermal sphere hypothesis in the description of the WIMP velocity phase
space. The most relevant effect is a distortion of the time-behaviour at low
recoil energies for anisotropic galactic halos. While some of these effects
turn out to be relevant at recoil energies below the current detector
thresholds, some others could already be measurable, although some degree of
tuning between the WIMP mass and the experimental parameters would be required.
Either the observation or non-observation of these effects could provide clues
on the phase space distribution of our galactic halo.Comment: 4 pages, 4 figures, typeset with ReVTeX4. The paper may also be found
at http://www.to.infn.it/~fornengo/papers/distortion.ps.g
Synthesis and reactivity of cytotoxic platinum(II) complexes of bidentate oximes: a step towards the functionalization of bioactive complexes
Two new platinum(II) complexes bearing triphenylphosphine and bidentate oxime ligands [Pt(Cl)(PPh3){(Îş2-N,O)-(1{C(R)=N(OH)-2(O)C10H6})}] (R = H, Me) were synthesized in good yields from trans-[PtCl(ÎĽ-Cl)(PPh3)]2. The structure of
[Pt(Cl)(PPh3){(Îş2-N,O)-(1{CH=N(OH)-2(O)C10H6})}] was determined by single-crystal X-ray diffraction. Both complexes showed good antiproliferative properties in vitro against HeLa, A2780, and A2780cis cancer cell lines. They reacted cleanly with
alkylating agents in the presence of aqueous bases under phase-transfer catalysis conditions to afford the corresponding O-alkylation products [Pt(Cl)(PPh3){(κ2-N,O)-(1{HC=N(OR′)-2(O)C10H6})}] [R′ = CH2CH2Cl, CH2Ph, (CH2)4Br] in good yields
Microtensile bond strength of two different adhesive systems to dentin (an in vivo and in vitro study)
Abstract no. 496published_or_final_versio
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