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주주보호를 심각하게 고려하는가?: 미국과 독일의 기업지배구조
Baum & Scott,서정 譯 한국증권법학회 2007 증권법연구 Vol.8 No.1
The paper undertakes a comparative study of the set of laws affecting corporate governance in the United States and Germany, and an evaluation of their design - if one assumes that their objective were the protection of the interests of minority outside shareholders. The rationale for such an objective is reviewed, in terms of agency cost theory, and then the institutions that serve to bound agency costs are examined and critiqued. In particular, there is discussion of the applicable legal rules in each country, the role of the board of directors, the functioning of the market for corporate control, and (briefly) the use of incentive compensation. The paper concludes with the authorsviews on what taking shareholder protection seriously, in each country legal system, would require.
Baum, Richard P.,Langbein, Thomas,Singh, Aviral,Shahinfar, Mostafa,Schuchardt, Christiane,Volk, Gerd Fabian,Kulkarni, Harshad 대한핵의학회 2018 핵의학 분자영상 Vol.52 No.1
The dose-limiting salivary gland toxicity of $^{225}Ac$-labelled PSMA for treatment of metastatic, castration-resistant prostate cancer remains unresolved. Suppressing the metabolism of the gland by intraparenchymal injections of botulinum toxin appears to be a promising method to reduce off-target uptake. A $^{68}Ga-PSMA$ PET/CT scan performed 45 days after injection of 80 units of botulinum toxin A into the right parotid gland in a 63-year-old patient showed a decrease in the SUVmean in the right parotid gland of up to 64% as compared with baseline. This approach could be a significant breakthrough for radioprotection of the salivary glands during PSMA radioligand therapy.
Baum, Richard P.,Kluge, Andreas,Gildehaus, Franz Josef,Bronzel, Marcus,Schmidt, Karl,Schuchardt, Christiane,Senftleben, Stephan,Samnick, Samuel The Korea Society of Nuclear Medicine 2011 핵의학 분자영상 Vol.45 No.4
Purpose To explore feasibility, tolerability, dosimetry and probable efficacy of intravenous endoradiotherapy with carrier-added 4-[$^{131}I$]iodo-L-phenylalanine (c.a. $^{131}I$-IPA) in refractory high-grade glioma. Methods Two male patients (45 and 50 years), with longstanding, extensively pre-treated gliomas and evidence of progression underwent single intravenous injections of 2 and 4 GBq of c.a. $^{131}I$-IPA, respectively. Tumour targeting was verified by $^{131}I$-IPA single-photon emission computed tomography (SPECT). Metabolic and morphological changes indicative of tumour response were assessed by sequential [$^{18}F$] fluoroethyltyrosine ($^{18}F$-FET) positron emission tomography (PET) and contrast-enhanced magnetic resonance imaging (MRI) following therapy. Further monitoring included clinical state, safety laboratory, quality of life and dosimetry. Absorbed mean organ and whole-body doses were determined according to the Medical Internal Radiation Dose (MIRD) scheme using OLINDAEXM based on serial planar scintigraphy. Results Both patients tolerated the treatment well. No evidence of acute or delayed organ toxicity was observed. $^{131}I$-IPA accumulated in the tumour recurrences identified by MRI/$^{18}F$-FET. In patient 1, PET showed progressively decreasing maximum standardised uptake values ($SUV_{max}$) over 10 months, indicating metabolic response, paralleled by reduced contrast enhancement and tumour volume on MRI. Progression occurred 18 months after therapy. Treatment was repeated using 6.6 GBq of $^{131}I$-IPA, to which no response was observed. Patient 2, followed-up for 3 months after therapy, showed stable disease on MRI and PET. Mean absorbed whole body doses ranged from 0.13 to 0.17 mSv/MBq, with the highest absorbed organ doses to kidneys, bladder and heart (0.86-1.23; 0.49-0.6 and 0.45-0.56 mSv/MBq). Conclusion Systemic endoradiotherapy using up to 6.6 GBq of c.a.$^{131}I$-IPA is not associated with clinically detectable toxicity. Measurable anti-tumour effects in gliomas were observed. $^{131}I$-IPA warrants further evaluation as glioma therapy.
Detecting solar chameleons through radiation pressure
Baum, S.,Cantatore, G.,Hoffmann, D.H.H.,Karuza, M.,Semertzidis, Y.K.,Upadhye, A.,Zioutas, K. Elsevier 2014 Physics letters: B Vol.739 No.-
<P><B>Abstract</B></P> <P>Light scalar fields can drive the accelerated expansion of the universe. Hence, they are obvious dark energy candidates. To make such models compatible with tests of General Relativity in the solar system and “fifth force” searches on Earth, one needs to screen them. One possibility is the so-called “chameleon” mechanism, which renders an effective mass depending on the local matter density. If chameleon particles exist, they can be produced in the sun and detected on Earth exploiting the equivalent of a radiation pressure. Since their effective mass scales with the local matter density, chameleons can be reflected by a dense medium if their effective mass becomes greater than their total energy. Thus, under appropriate conditions, a flux of solar chameleons may be sensed by detecting the total instantaneous momentum transferred to a suitable opto-mechanical force/pressure sensor. We calculate the solar chameleon spectrum and the reach in the chameleon parameter space of an experiment using the preliminary results from a force/pressure sensor, currently under development at INFN Trieste, to be mounted in the focal plane of one of the X-Ray telescopes of the CAST experiment at CERN. We show, that such an experiment signifies a pioneering effort probing uncharted chameleon parameter space.</P>
Slowing at Sunset: Administrative Procedures and the Pace of Reform in Korea
Jeeyang Rhee Baum,Kathleen Bawn 동아시아연구원 2011 Journal of East Asian Studies Vol.11 No.2
Overhaul of administrative procedures is an important part of most democratic transitions, and procedural regularization and transparency are often seen as steps toward the consolidation of democracy. Administrative procedures affect policy decisions, but whether particular procedural reforms facilitate or hinder democratic responsiveness depends on the details of the procedure and the political environment. In this article, we examine a particular procedural reform: the adoption of a sunset provision in Korea as part of an omnibus administrative procedures package at the end of Kim Young Sam’s presidency. A sunset provision might be seen as clearly promoting democratic responsiveness by requiring the winner of the most recent election to explicitly decide whether to keep or drop old rules and regulations. Alternatively, it might be seen as limiting a democratically elected leader’s ability to change policy in accordance with his mandate, by requiring expenditure of effort and resources just to maintain a status quo. We argue that the second interpretation applies to the Korean case. We use a spatial model and evidence from regulatory decisionmaking to argue that Kim Young Sam favored the sunset provision because it would constrain the policy decisions of future presidents. Our model offers an explanation for why Kim Young Sam would propose a sunset provision that limited the life of his own regulations.