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Personal Papers (MS 80-0002)
No full textLetter from Tracy Jaeckel to Daniel W. Kempner enclosing a bill for the Russian ermine cape he had custom made for Mrs. Kempner. A handwritten postscript from Mr. Jaeckel reads "I'd appreciate your recommending any of your friends to me.
Personal Papers (MS 80-0002)
No full textLetter from Jeane Kempner to Tracy Jaeckel mentioning that she didn't get a reply yo her letter of December 12th regarding the Caracul coat that she returned on the same day
Tonkinospira depressa Jaeckel 1950
No full textTonkinospira depressa (Jaeckel, 1950) (Fig. 7) Systenostoma depressa Jaeckel, 1950: 15–16, pl. 1, fig. 1. (type locality: Tonkin [northern Vietnam]). Aulacospira depressa — Vermeulen et al., 2007: 91. Tonkinospira depressa — Jochum et al., 2014: 32. Types examined. 33 paratypes (H = 1.6, D = 2.3, Fig. 7) (SMF 202927), Tonkin: Flussgenist (river debris), coll. S.H. Jaeckel ex coll. H. Rolle; 8 paratypes SMF 63875, Tonkin, Genist, coll. Zilch, ex coll. H. Rolle, ex coll. Jaeckel, 8 December 1949. Diagnosis. A large Tonkinospira species with a strongly depressed shell, strongly angled body whorl, dense spiral striation, and a peristome that is more or less adnate to penultimate whorl. Description. Shell large-sized for the genus; depressed conical with rapidly increasing whorls; body whorl strongly angled, keel not symmetrical, situated above mid line of body whorl, flattened above; keel not very sharp; whorls 3.75–4; suture moderately deep; protoconch consists of 1.25 whorls, roughly rugose and spirally striated; teleoconch with rather regular spiral striation and irregular, rough radial lines; aperture oblique to shell axis from lateral view; aperture ovate-oblong; peristome expanded especially in direction of the columella/umbilicus; aperture more or less adnate to penultimate whorl, but peristome continuous; umbilicus narrow, very slightly covered by peristome. Differential diagnosis. The most similar species is T. pulverea, which has a narrower umbilicus and a more rounded body whorl. Remarks. Tonkinospira depressa is most similar to the Philippine members of the genus Aulacospira, and reflects this classification by Vermeulen et al. (2007). The most similar species is Aulacospira hololoma (Möllendorff, 1887), which has a regularly growing protoconch (tightly spired and projected above the teleoconch in T. depressa) and bears a columellar tooth (lacks in T. depressa). Moreover, the Philippine species typically have a prominent subsutural furrow on the body whorl, with the keel situated above the middle line of the body whorl (i.e., the keel is not symmetrical) (see Páll-Gergely et al., 2019). Although the similarity between Tonkinospira and Aulacospira is striking, the true phylogenetic relationships cannot be resolved based on conchological characters only. Tonkinospira depressa further differs from other Tonkinospira species in the brownish shell colour, which is colourless in the other species of this genus.Published as part of Páll-Gergely, Barna, Grego, Jozef, Vermeulen, Jaap J., Reischütz, Alexander, Hunyadi, András & Jochum, Adrienne, 2019, New Tonkinospira Jochum, Slapnik & Páll-Gergely, 2014 species from Laos and Vietnam (Gastropoda: Pulmonata: Hypselostomatidae), pp. 517-535 in Raffles Bulletin of Zoology 67 on page 527, DOI: 10.26107/RBZ-2019-0041, http://zenodo.org/record/457644
Personal Papers (MS 80-0002)
No full textLetter from Tracy Jaeckel to D. W. Kempner discussing a recent cape order Kempner had made, and clarifying some information
Personal Papers (MS 80-0002)
No full textHandwritten letter from Tracy Jaeckel to Daniel W. Kempner discussing a fur coat that he wanted to gift Mrs. Kempner for Christmas
Incidence, latency, and prognosis of local and regional recurrences in patients with upper aerodigestive tract cancer treated by laser microsurgery
No full textIntroduction. The aim of the present study is to identify clinical factors that influence the incidence and the prognosis of local and regional recurrences. Patients and methods. The data of 1,426 patients with newly diagnosed squamous cell carcinoma of the upper aerodigestive tract who were treated by curative laser microsurgery between August 1986 and December 2002 were reviewed. Results. In 381 patients (27%), tumor recurrences were detected during follow-up. The frequency of local as well as regional recurrences significantly correlated with the initial stage of tumors. Recurrences of advanced carcinomas occurred considerably sooner than those of stage II and I cancer. During the 4th year of follow-up, patients with early stage disease had a recurrence rate twice as high as those with advanced carcinomas. Survival with recurrence was adversely affected by adjuvant radiotherapy as part of initial treatment, simultaneous local and regional manifestation of recurrence, male sex, advanced stage of initial disease, and by oral or hypopharyngeal site of the primary tumor. Conclusion. Early carcinomas of the upper aerodigestive tract recur at a lower rate than advanced stage diseases, but after a longer mean latency period. As a consequence, these patients should receive close follow-up also during the 3rd and 4th years after treatment, particularly as the prognosis of their recurrences is most often favorable
Axions in string theory — slaying the Hydra of dark radiation
Full text linkIt is widely believed that string theory easily allows for a QCD axion in the cosmologically favored mass range. The required small decay constant, f(a) << M-P, can be implemented by using a large compactification volume. This points to the Large Volume Scenario which in turn makes certain cosmological predictions: first, the closed string axion behaves similarly to a field-theoretic axion in the pre-inflationary scenario, i.e. the initial value can be tuned but one is constrained by isocurvature fluctuations. In addition, the volume represents a long-lived modulus that may lead to an early matter-dominated phase. Finally, the decay of the volume modulus to its own axion tends to overproduce dark radiation. In this paper we aim to carefully analyze the cosmology by studying models that not only allow for a QCD axion but also include inflation. Quite generally, limits on isocurvature fluctuations restrict us to relatively low-scale inflation, which in the present stringy context points to Kahler moduli inflation. As a novel feature we find that the lightest (volume) modulus couples strongly to the Higgs. It hence quickly decays to the SM, thus resolving the original dark radiation problem. This decay is much faster than that of the inflaton, implying that reheating is determined by the inflaton decay. The inflaton could potentially reintroduce a dark radiation problem since it decays to lighter moduli and their axions with equal rates. However, due its mixing with the QCD-saxion, the inflaton has also a direct decay rate to the SM, enhanced by the number of SM gauge bosons. This results in an amount of dark radiation that is consistent with present limits but potentially detectable in future measurements
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The international seabed authority and the pre-cautionary principle ::balancing deep seabed mineral mining and marine environmental protection /
No full textWith the transition to the commercial-scale exploitation of deep seabed minerals, the International Seabed Authority's obligation to protect the marine environment is being tested. In The International Seabed Authority and the Precautionary Principle , Aline L. Jaeckel provides the first in-depth analysis of the Authority's work in regulating and managing deep seabed minerals. This book examines whether and to what extent the Authority is implementing the precautionary principle in practice. This includes the development of adequate environmental protection standards as well as procedural safeguards and decision-making processes that facilitate risk assessment and risk management. In doing so, the author offers an insightful example of how the precautionary principle can be translated into a practical management tool
Bounds on axionlike particles from the diffuse supernova flux
Full text linkThe cumulative emission of axionlike particles (ALPs) from all past core-collapse supernovae (SNe) would lead to a diffuse flux with energies O(50) MeV. We use this to constrain ALPs featuring couplings to photons and to nucleons. ALPs coupled only to photons are produced in the SN core via the Primakoff process and then converted into gamma rays in the Galactic magnetic field. We set a bound on gaγ≲5×10-10 GeV-1 for ma≲10-11 eV, using recent measurements of the diffuse gamma-ray flux observed by the Fermi-LAT telescope. However, if ALPs couple also with nucleons, their production rate in SN can be considerably enhanced due to the ALPs nucleon-nucleon bremsstrahlung process. Assuming the largest ALP-nucleon coupling phenomenologically allowed, bounds on the diffuse gamma-ray flux lead to a much stronger gaγ≲6×10-13 GeV-1 for the same mass range. If ALPs are heavier than ∼keV, the decay into photons becomes significant, leading again to a diffuse gamma-ray flux. In the case of only photon coupling, we find, e.g., gaγ≲5×10-11 GeV-1 for ma∼5 keV. Allowing for a (maximal) coupling to nucleons, the limit improves to the level of gaγ≲10-19 GeV-1 for ma∼20 MeV, which represents the strongest constraint to date
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