Interplay between Topological States and Rashba States as Manifested on Surface Steps at Room Temperature.

The unique spin texture of quantum states in topological materials underpins many proposed spintronic applications. However, realizations of such great potential are stymied by perturbations, such as temperature and local fields imposed by impurities and defects, that can render a promising quantum state uncontrollable. Here, we report room-temperature scanning tunneling microscopy/spectroscopy observation of interaction between Rashba states and topological surface states, which manifests local electronic structure along step edges controllable by the layer thickness of thin films.

Interfacially Enhanced Superconductivity in Fe(Te,Se)/BiTe Heterostructures.

Realizing topological superconductivity by integrating high-transition-temperature (T) superconductors with topological insulators can open new paths for quantum computing applications. Here, a new approach is reported for increasing the superconducting transition temperature by interfacing the unconventional superconductor Fe(Te,Se) with the topological insulator Bi-Te system in the low-Se doping regime, near where superconductivity vanishes in the bulk. The critical finding is that the of Fe(Te,Se) increases from nominally non-superconducting to as high as 12.

Monolayer Superconductivity and Tunable Topological Electronic Structure at the Fe(Te,Se)/Bi Te Interface.

The interface between 2D topological Dirac states and an s-wave superconductor is expected to support Majorana-bound states (MBS) that can be used for quantum computing applications. Realizing these novel states of matter and their applications requires control over superconductivity and spin-orbit coupling to achieve spin-momentum-locked topological interface states (TIS) which are simultaneously superconducting. While signatures of MBS have been observed in the magnetic vortex cores of bulk FeTe Se , inhomogeneity and disorder from doping make these signatures unclear and inconsistent between vortices.

Safety assessment of Mpp75Aa1.1, a new ETX_MTX2 protein from Brevibacillus laterosporus that controls western corn rootworm.

The recently discovered insecticidal protein Mpp75Aa1.1 from Brevibacillus laterosporus is a member of the ETX_MTX family of beta-pore forming proteins (β-PFPs) expressed in genetically modified (GM) maize to control western corn rootworm (WCR; Diabrotica virgifera virgifera LeConte). In this manuscript, bioinformatic analysis establishes that although Mpp75Aa1.

Anomalously strong near-neighbor attraction in doped 1D cuprate chains.

In the cuprates, one-dimensional (1D) chain compounds provide a distinctive opportunity to understand the microscopic physics, owing to the availability of reliable theories. However, progress has been limited by the challenge of controllably doping these materials. We report the synthesis and spectroscopic analysis of the 1D cuprate BaSrCuO over a wide range of hole doping.

Magic Doping and Robust Superconductivity in Monolayer FeSe on Titanates.

The enhanced superconductivity in monolayer FeSe on titanates opens a fascinating pathway toward the rational design of high-temperature superconductors. Utilizing the state-of-the-art oxide plus chalcogenide molecular beam epitaxy systems connected to a synchrotron angle-resolved photoemission spectroscope, epitaxial LaTiO layers with varied atomic thicknesses are inserted between monolayer FeSe and SrTiO, for systematic modulation of interfacial chemical potential. With the dramatic increase of electron accumulation at the LaTiO/SrTiO surface, providing a substantial surge of work function mismatch across the FeSe/oxide interface, the charge transfer and the superconducting gap in the monolayer FeSe are found to remain markedly robust.

Dichotomy of the photo-induced 2-dimensional electron gas on SrTiO surface terminations.

Oxide materials are important candidates for the next generation of electronics due to a wide array of desired properties, which they can exhibit alone or when combined with other materials. While SrTiO (STO) is often considered a prototypical oxide, it, too, hosts a wide array of unusual properties, including a 2-dimensional electron gas (2DEG), which can form at the surface when exposed to ultraviolet (UV) light. Using layer-by-layer growth of high-quality STO films, we show that the 2DEG only forms with the SrO termination and not with the TiO termination, contrary to expectation.

Bacillus thuringiensis Cry1Da_7 and Cry1B.868 Protein Interactions with Novel Receptors Allow Control of Resistant Fall Armyworms, Spodoptera frugiperda (J.E. Smith).

Two new modified () proteins, Cry1Da_7 and Cry1B.868, with activity against fall armyworms (FAW), (J.E.

HfSe and ZrSe: Two-dimensional semiconductors with native high-κ oxides.

The success of silicon as a dominant semiconductor technology has been enabled by its moderate band gap (1.1 eV), permitting low-voltage operation at reduced leakage current, and the existence of SiO as a high-quality "native" insulator. In contrast, other mainstream semiconductors lack stable oxides and must rely on deposited insulators, presenting numerous compatibility challenges.

Ubiquitous strong electron-phonon coupling at the interface of FeSe/SrTiO.

The observation of replica bands in single-unit-cell FeSe on SrTiO (STO)(001) by angle-resolved photoemission spectroscopy (ARPES) has led to the conjecture that the coupling between FeSe electrons and the STO phonons are responsible for the enhancement of T over other FeSe-based superconductors. However the recent observation of a similar superconducting gap in single-unit-cell FeSe/STO(110) raised the question of whether a similar mechanism applies. Here we report the ARPES study of the electronic structure of FeSe/STO(110).

Invited Article: High resolution angle resolved photoemission with tabletop 11 eV laser.

We developed a table-top vacuum ultraviolet (VUV) laser with 113.778 nm wavelength (10.897 eV) and demonstrated its viability as a photon source for high resolution angle-resolved photoemission spectroscopy (ARPES).

Direct spectroscopic evidence for phase competition between the pseudogap and superconductivity in Bi2Sr2CaCu2O(8+δ).

In the high-temperature (T(c)) cuprate superconductors, a growing body of evidence suggests that the pseudogap phase, existing below the pseudogap temperature T*, is characterized by some broken electronic symmetries distinct from those associated with superconductivity. In particular, recent scattering experiments have suggested that charge ordering competes with superconductivity. However, no direct link of an interplay between the two phases has been identified from the important low-energy excitations.

Laparoscopic extravesical reimplantation for postpubertal vesicoureteral reflux.

Background And Purpose: Postpubertal vesicoureteral reflux is a rare occurrence. In the adolescent group, its repair can be a challenging open procedure. We present our preliminary experience with laparoscopic extravesical ureteral reimplantation for postpubertal vesicoureteral reflux.

Initial report of retroperitoneoscopic renal surgery in a patient with factor VIII deficiency (classic hemophilia).

Bleeding disorders are generally considered absolute contraindications to laparoscopic surgery. We believe laparoscopic/retroperitoneoscopic renal surgery is an optimal choice in patients with hemophilia, because it minimizes tissue trauma. We present a case of successful retroperitoneoscopic renal surgery in a patient with factor VIII deficiency with a perinephric abscess that failed less invasive treatments.

Concomitant intraoperative renal artery embolization and resection of complex renal carcinoma.

Background: Renal cell carcinoma, which has the propensity for rapid enlargement and local invasion, may present a surgical challenge, in part because of extensive vascularity. Conventional treatment typically involves staged preoperative renal artery embolization followed by nephrectomy after 1 or 2 days. We evaluated the clinical outcome of concomitant intraoperative embolization and nephrectomy.

Incidence of postoperative adhesion formation after transperitoneal genitourinary laparoscopic surgery.

Objectives: To evaluate adhesion formation after urologic laparoscopy, a multi-institutional review was conducted among adult patients who underwent a second procedure after an initial transperitoneal laparoscopic procedure. Adhesion formation after abdominal surgery remains a major cause of postoperative morbidity. Peritoneal adhesions result in hospitalizations and interventions that result in healthcare costs of more than 1 billion dollars annually.