Evidence of a Coulomb-Interaction-Induced Lifshitz Transition and Robust Hybrid Weyl Semimetal in T_{d}-MoTe_{2}.

Using soft x-ray angle-resolved photoemission spectroscopy we probed the bulk electronic structure of T_{d}-MoTe_{2}. We found that on-site Coulomb interaction leads to a Lifshitz transition, which is essential for a precise description of the electronic structure. A hybrid Weyl semimetal state with a pair of energy bands touching at both type-I and type-II Weyl nodes is indicated by comparing the experimental data with theoretical calculations. Unveiling the importance of Coulomb interaction opens up a new route to comprehend the unique properties of MoTe_{2}, and is significant for understanding the interplay between correlation effects, strong spin-orbit coupling and superconductivity in this van der Waals material.

Publisher's Note: Electronic Phase Separation and Dramatic Inverse Band Renormalization in the Mixed-Valence Cuprate LiCu_{2}O_{2} [Phys. Rev. Lett. 118, 176404 (2017)].

This corrects the article DOI: 10.1103/PhysRevLett.118.176404.

Electronic Phase Separation and Dramatic Inverse Band Renormalization in the Mixed-Valence Cuprate LiCu_{2}O_{2}.

We measured, by angle-resolved photoemission spectroscopy, the electronic structure of LiCu_{2}O_{2}, a mixed-valence cuprate where planes of Cu(I) (3d^{10}) ions are sandwiched between layers containing one-dimensional edge-sharing Cu(II) (3d^{9}) chains. We find that the Cu(I)- and Cu(II)-derived electronic states form separate electronic subsystems, in spite of being coupled by bridging O ions. The valence band, of the Cu(I) character, disperses within the charge-transfer gap of the strongly correlated Cu(II) states, displaying an unprecedented 250% broadening of the bandwidth with respect to the predictions of density functional theory. Our observation is at odds with the widely accepted tenet of many-body theory that correlation effects generally yield narrower bands and larger electron masses and suggests that present-day electronic structure techniques provide an intrinsically inappropriate description of ligand-to-d hybridizations in late transition metal oxides.

Electron-Phonon Coupling in the Bulk of Anatase TiO2 Measured by Resonant Inelastic X-Ray Spectroscopy.

We investigate the polaronic ground state of anatase TiO2 by bulk-sensitive resonant inelastic x-ray spectroscopy (RIXS) at the Ti L3 edge. We find that the formation of the polaron cloud involves a single 95 meV phonon along the c axis, in addition to the 108 meV ab-plane mode previously identified by photoemission. The coupling strength to both modes is the same within error bars, and it is unaffected by the carrier density. These data establish RIXS as a directional bulk-sensitive probe of electron-phonon coupling in solids.

[Five years survival after treatment of gallbladder metastasis of malignant melanoma]. / Survie à 5 ans après traitement d'une métastase vésiculaire d'un mélanome malin.

A case of an isolated gallbladder metastasis from a malignant melanoma is reported in a 32 year old woman. The patient has been treated by cholecystectomy and chemotherapy and was free of any recurrence 5 years after treatment.

[Pyloric exclusion for disinsertion of the papilla following closed trauma of the abdomen. Apropos of 2 cases]. / Exclusion pylorique pour désinsertion de la papille par traumatisme fermé de l'abdomen. A propos de deux cas.

Two cases of disinsertion of the papilla following closed trauma to the abdomen were treated by suction of the papilla by a Y loop associated with temporary pyloric exclusion, gastroenterostomy and a feeding jejunostomy. The postoperative course was uneventful in the two patients. This technique is therefore indicated for associated pancreatic lesions which do not require cephalic duodenopancreatectomy.

[Posterior cardiopexy technique]. / Technique des cardiopexies postérieures.

The technique of Hill's posterior cardiopexy is based on precise anatomical criteria. Hill's "strips" actually correspond to the peri-oesophageal connective tissue described by Boutelier. The operation consists of closing the oesophageal hiatus and attaching the "strips" to the preaortic fascia. We prefer to perform the operation via a left subcostal incision without intraoperative manometry and we complete the procedure by fixing the fundus of the stomach to the left side of the oesophagus.

[Congenital malformations. 1,238 cases of malformed infants in a 25-year (1950 to 1974) continuous series of 49,665 deliveries. Epidemiological and statistical study]. / Contribution à l'étude des malformations congénitales. A propos de 1 238 cas d'enfants malformés pour 49 665 accouchements en série continue de 25 ans (1950 à 1974). Etude épidémiologique statistique.

In a study carried on 25 years and about 50 000 births, the authors analyse 1 238 malformed children, with two purposes: 1. to determine a maternal population with high risk of malformations, in order to have a better survey and to look for many anomalies before the birth: 2. to make a "portrait" of the malformed child in order to suspect the existence of congenital anomalies during the obligatory examination in neo-natal time.

[Cephalic duodenopancreatectomy with preservation of the pylorus]. / Duodéno-pancréatectomie céphalique avec conservation du pylore.

We report a technique of cephalic pancreatico-duodenectomy preserving the pylorus which differs from that initially devised by Longmire and Traverso. Restoration of digestive tract continuity consists successively of end-to-end duodeno-jejunal anastomosis, end-to-side choledoco-jejunal anastomosis and end-to-side pancreatico-jejunal anastomosis. The simple technique has the advantage of restoring a perfectly physiological circuit. It seems to produce satisfactory immediate and mid- or long-term results with improvements in the patients' comfort.

[Surgery of inflammatory and neoplastic tracheal stenosis. Apropos of 38 cases]. / Chirurgie des sténoses inflammatoires et tumorales de la trachée. A propos de 38 cas.

This is a retrospective study of 38 patients who were operated on for inflammatory (31) or tumoral tracheal stenosis. A cervical approach was possible in 20 cases; a sternotomy was required in 8 cases and a thoracotomy in 5 cases. Per-operative ventilation was satisfactory for all patients. There were 2 deaths in patients suffering from chronic airflow obstruction. There were 2 immediate and 13 late post-operative stenosis; 9 of these were symptomatic and required treatment which was successful in 7 cases. 25 of the 30 patients (among 33 survivors) who were followed-up were symptomless; 4 patients who had operations for a tumour had a larger than 3 years survival.

[Traumatic rupture of the duodenum in adults. Clinicopathologic and therapeutic considerations. Apropos of 9 cases]. / Ruptures traumatiques du duodénum chez l'adulte. Considérations anatomo-cliniques et thérapeutiques. A propos de neuf observations.

Injuries to the duodenum are rare and their treatment is controversial. We have wanted to assess the results of treatment in 9 cases of duodenal trauma operated successively. 6 patients were operated at once because of associated lesions producing a state of shock. The other 3 had isolate lesions and were all operated after a waiting time. 5 patients had a simple suture after excision of the margins of the wound. 2 underwent controlled fistulization on a Pezzer probe associated to a feeding jejunostomy. In 2 cases, papillar disinsertion was treated by cupping the papilla with an ascended loop and by temporary pyloric exclusion. No patient died after surgery, and no duodenal fistula was noted. In case of controlled fistulization, the scar was obtained within 21 days. We think that duodenal wounds examined early can readily be sutured if there is no loss of substance. When the duodenal wound is isolate, the delay in treatment leads us to prefer controlled fistulization associated to feeding jejunostomy.

[Present status of the Taylor method in perforated ulcer of the duodenal bulb]. / Place actuelle de la méthode de Taylor dans l'ulcère perforé du bulbe duodénal.

Therapy by Taylor's method was attempted in 61 of 96 patients with perforated ulcer of duodenal cap. Treatment was effective in 50 cases (more than 50%) and morbidity and mortality were low. Most operated cases were recipients of simple treatment for the perforation, more rarely combined with therapy for the ulcer disease. Postoperative mortality was very high (24% of patients operated upon) but appeared to be related mainly to associated risk factors. Only 8 of the patients treated by Taylor's method required recovery surgery, while this was necessary in 4 patients operated upon initially and given simple treatment for the perforation. These findings suggest efficacy of Taylor's method for treatment of perforated duodenal ulcer, avoiding operation or allowing treatment of the ulcer disease once the acute episode has passed.

[Primary non-parasitic cyst of the diaphragm. Review of the literature. Apropos of a case]. / Kyste primitif non parasitaire du diaphragme. Revue de la littérature. A propos d'un cas.

The authors report a case of mesothelial cyst of the diaphragm, discovered on ultrasonography performed for pain in the right hypochondrium and treated by simple surgical excision. Based on a review of the literature, they define the topographical, histological and therapeutic aspects of these lesions, which are now recognised more frequently due to the progress in medical imaging.

[Syndrome of transverse testicular ectopia with persistent Müllerian vestiges or empty bursa with overfilled funiculus spermaticus]. / Le syndrome d'ectopie testiculaire transverse avec persistance de vestiges mulleriens ou la bourse vide et le cordon trop plein.

Transverse parorchidium is characterized by the presence of two testes in the same bursa, and may be associated with persistent Müllerian vestige in the spermatic cord of the normally situated testis. Persistence of Müllerian vestige is related to inadequate production of anti-Müllerian hormone by the embryonal testis. Transverse parorchidium is caused by the emergence of both deferent ducts into the Müllerian vestige. Diagnosis is evoked by the presence of an empty bursa associated with an abnormally hard spermatic cord contralaterally. This syndrome should be known of surgeons, as ablation of the Müllerian vestige consecutive to surgical management of a hernia or ectopic testis may lead to the sectioning of the deferent ducts.

Report of the Federation of European Laboratory Animal Science Associations Working Group on animal identification.

The primary aim of this report is to assist scientists in selecting more reliable/suitable identification (ID) methods for their studies. This is especially true for genetically altered (GA) animals where individual identification is strictly necessary to link samples, research design and genotype. The aim of this Federation of European Laboratory Animal Science Associations working group was to provide an update of the methods used to identify rodents in different situations and to assess their implications for animal welfare. ID procedures are an indispensable prerequisite for conducting good science but the degree of invasiveness differs between the different methods; therefore, one needs to make a good ethical evaluation of the method chosen. Based on the scientific literature the advantages and disadvantages of various methods have been presented comprehensively and this report is intended as a practical guide for researchers. New upcoming methods have been included next to the traditional techniques. Ideally, an ID method should provide reliable identification, be technically easy to apply and not inflict adverse effects on animals while taking into account the type of research. There is no gold standard method because each situation is unique; however, more studies are needed to better evaluate ID systems and the desirable introduction of new and modern approaches will need to be assessed by detailed scientific evaluation.