203 research outputs found

    Emil Brunner

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    Swiss theologian Emil Brunner (1899-1966) developed a liberal Protestant theology of the family, contrary to the more traditional biblical views of his compatriot Karl Barth. Brunner treated the family as a natural order of creation, alongside the state and economy. The family has a natural monogamous structure and a built-in set of spousal and parental rights and duties that cannot be invaded by other social spheres or reconstructed by family members or liberal reformers. The state has to protect and enforce these family rights and duties as a matter of justice, but Christians should honor them spontaneously in expression of agapic love. Brunner prized children and their rights, and he called the union of husband, wife, and child, a “trinitarian union” built on the foundation of mutual natural attraction and as a reflection of the triune Godhead. But he insisted that marital sex was a unique expression of love not just a means to a procreative end, and he firmly rejected as unrealistic the procreative perfectionism of some parts of the Catholic tradition. A marital couple without children was a complete family, he believed, just as a widow(er) or divorcee with children remained a complete family

    Christianity's Mixed Contributions to Children's Rights: Traditional Teachings, Modern Doubts

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    The United States is the only nation, besides Somalia, not to ratify the 1989 United Nations Convention on Human Rights. This is ironic, given the leading role that American lawyers and diplomats played in creating the Convention. The leading opponents to ratification, it turns out, are conservative Christians who object to the idea of children’s rights altogether, or at least to international human rights protection of the child, and see these rights as a liberal threat to parental rights to nurture, educate, and discipline their own children. We argue, however, that many of these modern objections to children’s rights are misplaced, and fail to appreciate the classical and Christian roots of children’s rights and parental duties in the Western tradition. We call upon churches and states alike to embrace children’s rights more fully, and to offer at least qualified acceptance of the UN Convention

    Spirituality during aging

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    This paper suggests that an understanding of spirituality during aging provides an important supplement for the developmental model in looking at the religious lives of older persons. Jung's perspective on the psychodynamics of human spirit is compared with Allport's description of mature religious sentiment in order to present a basis for looking at three case studies of nursing home residents. Each case addresses a major challenge faced in the later years of life: 1) self-worth, 2) the meaning of one's life, 3) losses in aging. An understanding of the developmental issues faced in late life supplemented with an appreciation for a person's spirituality may help us better minister to older persons.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/45470/1/11089_2005_Article_BF01760074.pd

    Charge separation relative to the reaction plane in Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm NN}}= 2.76 TeV

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    Measurements of charge dependent azimuthal correlations with the ALICE detector at the LHC are reported for Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm NN}} = 2.76 TeV. Two- and three-particle charge-dependent azimuthal correlations in the pseudo-rapidity range η<0.8|\eta| < 0.8 are presented as a function of the collision centrality, particle separation in pseudo-rapidity, and transverse momentum. A clear signal compatible with a charge-dependent separation relative to the reaction plane is observed, which shows little or no collision energy dependence when compared to measurements at RHIC energies. This provides a new insight for understanding the nature of the charge dependent azimuthal correlations observed at RHIC and LHC energies.Comment: 12 pages, 3 captioned figures, authors from page 2 to 6, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/286

    Transverse sphericity of primary charged particles in minimum bias proton-proton collisions at s=0.9\sqrt{s}=0.9, 2.76 and 7 TeV

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    Measurements of the sphericity of primary charged particles in minimum bias proton--proton collisions at s=0.9\sqrt{s}=0.9, 2.76 and 7 TeV with the ALICE detector at the LHC are presented. The observable is linearized to be collinear safe and is measured in the plane perpendicular to the beam direction using primary charged tracks with pT0.5p_{\rm T}\geq0.5 GeV/c in η0.8|\eta|\leq0.8. The mean sphericity as a function of the charged particle multiplicity at mid-rapidity (NchN_{\rm ch}) is reported for events with different pTp_{\rm T} scales ("soft" and "hard") defined by the transverse momentum of the leading particle. In addition, the mean charged particle transverse momentum versus multiplicity is presented for the different event classes, and the sphericity distributions in bins of multiplicity are presented. The data are compared with calculations of standard Monte Carlo event generators. The transverse sphericity is found to grow with multiplicity at all collision energies, with a steeper rise at low NchN_{\rm ch}, whereas the event generators show the opposite tendency. The combined study of the sphericity and the mean pTp_{\rm T} with multiplicity indicates that most of the tested event generators produce events with higher multiplicity by generating more back-to-back jets resulting in decreased sphericity (and isotropy). The PYTHIA6 generator with tune PERUGIA-2011 exhibits a noticeable improvement in describing the data, compared to the other tested generators.Comment: 21 pages, 9 captioned figures, 3 tables, authors from page 16, published version, figures from http://aliceinfo.cern.ch/ArtSubmission/node/308

    Effective Rheology of Bubbles Moving in a Capillary Tube

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    We calculate the average volumetric flux versus pressure drop of bubbles moving in a single capillary tube with varying diameter, finding a square-root relation from mapping the flow equations onto that of a driven overdamped pendulum. The calculation is based on a derivation of the equation of motion of a bubble train from considering the capillary forces and the entropy production associated with the viscous flow. We also calculate the configurational probability of the positions of the bubbles.Comment: 4 pages, 1 figur

    Centrality dependence of charged particle production at large transverse momentum in Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm{NN}}} = 2.76 TeV

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    The inclusive transverse momentum (pTp_{\rm T}) distributions of primary charged particles are measured in the pseudo-rapidity range η<0.8|\eta|<0.8 as a function of event centrality in Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm{NN}}}=2.76 TeV with ALICE at the LHC. The data are presented in the pTp_{\rm T} range 0.15<pT<500.15<p_{\rm T}<50 GeV/cc for nine centrality intervals from 70-80% to 0-5%. The Pb-Pb spectra are presented in terms of the nuclear modification factor RAAR_{\rm{AA}} using a pp reference spectrum measured at the same collision energy. We observe that the suppression of high-pTp_{\rm T} particles strongly depends on event centrality. In central collisions (0-5%) the yield is most suppressed with RAA0.13R_{\rm{AA}}\approx0.13 at pT=6p_{\rm T}=6-7 GeV/cc. Above pT=7p_{\rm T}=7 GeV/cc, there is a significant rise in the nuclear modification factor, which reaches RAA0.4R_{\rm{AA}} \approx0.4 for pT>30p_{\rm T}>30 GeV/cc. In peripheral collisions (70-80%), the suppression is weaker with RAA0.7R_{\rm{AA}} \approx 0.7 almost independently of pTp_{\rm T}. The measured nuclear modification factors are compared to other measurements and model calculations.Comment: 17 pages, 4 captioned figures, 2 tables, authors from page 12, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/284

    Particle-yield modification in jet-like azimuthal di-hadron correlations in Pb-Pb collisions at sNN\sqrt{s_{\rm NN}} = 2.76 TeV

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    The yield of charged particles associated with high-pTp_{\rm T} trigger particles (8<pT<158 < p_{\rm T} < 15 GeV/cc) is measured with the ALICE detector in Pb-Pb collisions at sNN\sqrt{s_{\rm NN}} = 2.76 TeV relative to proton-proton collisions at the same energy. The conditional per-trigger yields are extracted from the narrow jet-like correlation peaks in azimuthal di-hadron correlations. In the 5% most central collisions, we observe that the yield of associated charged particles with transverse momenta pT>3p_{\rm T}> 3 GeV/cc on the away-side drops to about 60% of that observed in pp collisions, while on the near-side a moderate enhancement of 20-30% is found.Comment: 15 pages, 2 captioned figures, 1 table, authors from page 10, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/350

    Measurement of charm production at central rapidity in proton-proton collisions at s=2.76\sqrt{s} = 2.76 TeV

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    The pTp_{\rm T}-differential production cross sections of the prompt (B feed-down subtracted) charmed mesons D0^0, D+^+, and D+^{*+} in the rapidity range y<0.5|y|<0.5, and for transverse momentum 1<pT<121< p_{\rm T} <12 GeV/cc, were measured in proton-proton collisions at s=2.76\sqrt{s} = 2.76 TeV with the ALICE detector at the Large Hadron Collider. The analysis exploited the hadronic decays D0^0 \rightarrow Kπ\pi, D+^+ \rightarrow Kππ\pi\pi, D+^{*+} \rightarrow D0π^0\pi, and their charge conjugates, and was performed on a Lint=1.1L_{\rm int} = 1.1 nb1^{-1} event sample collected in 2011 with a minimum-bias trigger. The total charm production cross section at s=2.76\sqrt{s} = 2.76 TeV and at 7 TeV was evaluated by extrapolating to the full phase space the pTp_{\rm T}-differential production cross sections at s=2.76\sqrt{s} = 2.76 TeV and our previous measurements at s=7\sqrt{s} = 7 TeV. The results were compared to existing measurements and to perturbative-QCD calculations. The fraction of cdbar D mesons produced in a vector state was also determined.Comment: 20 pages, 5 captioned figures, 4 tables, authors from page 15, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/307

    Pion, kaon, and proton production in central Pb-Pb Collisions at sNN=2.76\sqrt{s_{NN}} = 2.76 TeV

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    In this Letter we report the first results on π±\pi^\pm, K±^\pm, p and pp\mathrm {p\overline{p}} production at mid-rapidity (y<0.5\left|y\right|<0.5) in central Pb-Pb collisions at sNN\sqrt{s_{\rm NN}} = 2.76 TeV, measured by the ALICE experiment at the LHC. The pTp_{\rm T} distributions and yields are compared to previous results at sNN\sqrt{s_{\rm NN}} = 200 GeV and expectations from hydrodynamic and thermal models. The spectral shapes indicate a strong increase of the radial flow velocity with sNN\sqrt{s_{\rm NN}}, which in hydrodynamic models is expected as a consequence of the increasing particle density. While the K/π{\rm K}/\pi ratio is in line with predictions from the thermal model, the p/π{\rm p}/\pi ratio is found to be lower by a factor of about 1.5. This deviation from thermal model expectations is still to be understood.Comment: 15 pages, 2 captioned figures, 1 table, authors from page 10, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/286
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