All-Order Amplitudes at any Multiplicity in the Multi-Regge Limit.

We propose an all-loop expression for scattering amplitudes in planar N=4 super Yang-Mills theory in multi-Regge kinematics valid for all multiplicities, all helicity configurations, and arbitrary logarithmic accuracy. Our expression is arrived at from comparing explicit perturbative results with general expectations from the integrable structure of a closely related collinear limit. A crucial ingredient of the analysis is an all-order extension for the central emission vertex that we recently computed at next-to-leading logarithmic accuracy.

Surgical resolution of uterine prolapse in three pet rabbits.

This report describes a surgical technique for resolution of uterine prolapse in rabbits. Three pet rabbits presented within 24 hours of parturition with a red mass protruding from the vagina, which was diagnosed as uterine prolapse. In the first case, an attempt to reduce the prolapse by manual compression was ineffective.

Three-Jet Production in Electron-Positron Collisions at Next-to-Next-to-Leading Order Accuracy.

We introduce a completely local subtraction method for fully differential predictions at next-to-next-to-leading order (NNLO) accuracy for jet cross sections and use it to compute event shapes in three-jet production in electron-positron collisions. We validate our method on two event shapes, thrust and C parameter, which are already known in the literature at NNLO accuracy and compute for the first time oblateness and the energy-energy correlation at the same accuracy.

Production of a Higgs boson accompanied by two jets via gluon fusion.

Real-emission corrections to gg-->H, which lead to H+2 jet events, are calculated at order alpha(4)(s). Contributions include top-quark triangles, boxes, and pentagon diagrams and are evaluated analytically for arbitrary top mass m(t). This new source of H+2 jet events is compared to the weak-boson fusion cross section for a range of Higgs boson masses.

X-ray structures of aza-proline-containing peptides.

The aza-analogue of proline (AzPro) contains a nitrogen atom in place of the CH alpha of the cognate residue. The resolution of the crystal structures of seven AzPro-containing peptides, presenting a set of ten AzPro motifs, reveals the structural properties of this particular aza-residue. Because of sterical hindrances, both nitrogen atoms are out of planarity, and the reduced electronic conjugation in the two AzPro-adjacent amide groups probably explains the longer amide bond distances and the weak proton-accepting character of the two pyrazolidine nitrogens.

Conformational studies of heterochiral peptides with diastereoisomeric residues: crystal and molecular structures of linear dipeptides derived from leucine, isoleucine, and allo-isoleucine.

The x-ray diffraction analyses of three N- and C-terminally blocked L,D dipeptides, namely t-Boc-D-Leu-L-Leu-OMe (1), t-Boc-L-Ile-D-aIle-OMe (2), and t-Boc-D-aIle-L-Ile-OMe (3) containing enantiomeric or diastereomeric amino acid residues have been carried out. The structures were determined by direct methods and refined anisotropically to final Rf actors of 0.077, 0.

The polypeptide 3(10)-helix as a template for molecular recognition studies. Structural characterization of a side-chain functionalized octapeptide.

A N alpha-blocked, Aib-rich octapeptide methylamide containing two N omega-benzoylated L-Lys residues at positions 3 and 6 was synthesized by solution methods and fully characterized. A solution and crystal-state conformational analysis, performed by using FT-IR, 1H NMR, CD, and X-ray diffraction techniques, showed that the peptide is folded into a regular, right-handed 3(10)-helix stabilized by seven consecutive N-H..

Conformation and structure of linear peptides with regularly alternating L- and D-residues: structure of the blocked hexapeptide tert-butyloxycarbonyl-(D-alloisoleucyl-L-isoleucyl)3 methyl ester monohydrate.

Peptides with a regular sequence of enantiomeric residues (L and D) along the chain have received considerable attention because of their accessibility to unique conformations and because they are model compounds for the naturally occurring peptide gramicidin A, which shows monovalent cation selective transmembrane transport. The solid-state structure of the linear hexapeptide t-Boc-(D-alle-L-Ile)3-OMe has been determined by X-ray diffraction techniques and refined to a final R factor of 0.068.

T-cell lymphoblastic lymphoma with eosinophilia associated with subsequent myeloid malignancy.

Three patients with T-cell lymphoblastic lymphoma and peripheral blood eosinophilia are reported. At the time of diagnosis, all patients had lymphadenopathy, and one had a mediastinal mass. Lymph node biopsies revealed lymphoblastic lymphoma admixed with a variable number of mature eosinophils.

Long survival in a 69,XXY triploid male.

We report on an infant with a 69,XXY chromosome constitution who survived for 10 1/2 months; this is the longest survival reported with this condition to date. The infrequency of this disorder, data on natural history, and improved survival, possibly due to better management of respiratory illness and prematurity, are all factors worth noting in counseling on such rare conditions. Genotyping demonstrated the extra genome to be of maternal origin.

A comparative trial of daunorubicin, cytosine arabinoside, and thioguanine, and a combination of the three agents for the treatment of acute myelocytic leukemia.

In this study 523 previously untreated patients with acute myelocytic leukemia were randomly allocated to induction therapy with daunorubicin 60 mg/M2 daily X 3, cytosine arabinoside and thioguanine 100 mg/M2 each every 12 hours until marrow hypoplasia was achieved, or a 5-day course of the three drugs with daunorubicin 100 mg/M2 given on dav 1 and cytosine arabinoside plus thioguanine each given at a dose of 100 mg/M2 every 12 hours for five days. All patients received cyclophosphamide 600 mg/M2 followed in 24 hours by hydroxyurea 500 mg/M2 every six hours for four doses monthly for maintenance therapy. Patients were randomized to receive one of three antimetabolite treatments beginning 24 hours after the last dose of hydroxyurea each month for seven days.

Spleen scan in histiocytic lymphoma: response to therapy.

Spleen scan demonstration of space-occupying lesions in patients with histiocytic lymphoma is a sensitive but not a specific finding. However, response to therapy could be evaluated if pretreatment scans show well-defined space-occupying lesions and posttreatment scans showed resolution of those changes.

Vincristine, prednisone and L-asparaginase in the induction of remission in children with acute lymphoblastic leukemia following relapse.

Two hundred and twenty-seven children with recurrent acute lymphoblastic leukemia were treated with various combinations of vincristine, prednisone, cyclophosphamide and L-asparaginase in an approach to the induction of remission. The combination of L-asparaginase 1,000 mu/kg iv q.d.