Preclinical evaluation of a surgical assistant robot for use in minimally invasive abdominal surgeries.

In recent years, robotic assistance has become increasingly used and applied in minimally invasive surgeries. A new cooperative surgical robot system that includes a joystick-guided robotic scope holder was developed in this study, and its feasibility for use in minimally invasive abdominal surgery was evaluated in a preclinical setting. The cooperative surgical robot consists of a six-degree-of-freedom collaborative robot arm and a one-degree-of-freedom bidirectional telescopic end-effector specializing in surgical assistance.

Effects of K doping on ZnCoO spinel catalysts for low-temperature catalytic NO decomposition in the presence of inhibitors.

The recent development of NH as a fuel has led to significant emissions of NO, a major greenhouse gas. Direct catalytic NO decomposition (de-NO) is a promising technology for NO emissions control because it effectively decomposes NO at low temperatures without requiring reducing agents or producing other pollutants. In marine applications, to improve the flame properties, NH is often mixed with marine diesel oil, which contains sulfur.

Subunit Has Important Roles in Infection-Related Development and Stress Responses in .

The multifunctional carbon catabolite repression negative on TATA-box-less complex (CCR4-NOT) is a multi-subunit complex present in all eukaryotes, including fungi. This complex plays an essential role in gene expression; however, a functional study of the CCR4-NOT complex in the rice blast fungus has not been conducted. Seven genes encoding the putative CCR4-NOT complex were identified in the genome.

Isolation and Identification of from Potato Plants Affected by Leaf Spot Disease in Korea: Selection of Effective Fungicides.

Brown leaf spot disease caused by spp. is among the most common diseases of potato crops. Typical brown spot symptoms were observed in commercial potato-cultivation areas of northern Korea from June to August 2020-2021.

Long-term Complications of Laparoscopic or Robotic Lateral Pelvic Node Dissection After Preoperative Chemoradiotherapy for Locally Advanced Rectal Cancer.

Background: Patients with rectal cancer who underwent lateral pelvic node dissection might be at a higher risk of postoperative complications derived from technical complexity. However, little is known regarding the long-term complications after lateral pelvic node dissection.

Objectives: The study aimed to investigate the long-term complications of preoperative chemoradiotherapy, followed by total mesorectal excision with lateral pelvic node dissection for locally advanced rectal cancers.

-Mediated Transformation of the Aquatic Fungus FBCC-F1546.

is a useful fungus known for its ability to mineralise lignin during primary metabolism and decompose polycyclic aromatic hydrocarbons (PAHs). However, no functional genetic analysis techniques have been developed yet for this fungus, specifically in terms of transformation. In this study, we applied an -mediated transformation (ATMT) system to for a functional gene analysis.

Comparison of the efficacy and safety of single-port versus multi-port robotic total mesorectal excision for rectal cancer: A propensity score-matched analysis.

Background: It is unknown whether the da Vinci single-port system performs similarly to the previous multi-port system during complicated procedures, such as rectal cancer surgery. Therefore, we compared the short-term clinical outcomes of single-port and multi-port robotic total mesorectal excision for the treatment of rectal cancer.

Methods: This retrospective study reviewed 128 patients who underwent robotic total mesorectal excision between July 2020 and June 2022, of whom 84 (42 each: single-port versus multi-port) were included in the propensity score-matched cohort.

Single-port multiport robotic total mesorectal excision for rectal cancer: initial experiences by case-matched analysis of short-term outcomes.

Purpose: The da Vinci single-port (SP) system has been used in various surgical fields, including colorectal surgery. However, limited experience has been reported on its safety and feasibility. This study aims to evaluate the short-term outcomes of SP robotic surgery for the treatment of rectal cancer compared with multiport (MP) robotic surgery.

Single-Port Robotic Intersphincteric Resection for the Treatment of Rectal Cancer.

Background: The da Vinci Single-port (SP) system is designed to facilitate single-incision robotic surgery in a narrow space. We developed a new procedure of intersphincteric resection (ISR) using the SP platform and evaluated the technical safety and feasibility of this procedure for the treatment of very low rectal cancer.

Materials And Methods: Eleven rectal cancer patients who underwent SP robotic ISR between August 2020 and July 2021 were included.

Efficacy of air leak test in detection of anastomotic leaks after rectal excision: a retrospective case-controlled study.

Purpose: Although its efficacy is uncertain, an intraoperative air leak test (ALT) is commonly used to detect mechanical defects following bowel anastomosis. This study aimed to evaluate the efficacy of ALT to detect anastomotic leakage (AL) following rectal excision.

Methods: We reviewed our database for patients with rectal cancers who had undergone curative surgery between January 2012 and January 2018.

First Report of Sharp Eyespot of Oat (Avena sativa) Caused by Ceratobasidium cereale in Korea.

Along with barley and wheat, oats (Avena sativa) are cultivated as winter crops in Korea, and the total area for oat cultivation is 103 ha in 2021. From late March to early April 2021, sharp eyespot symptoms on oat (cv. Choyang) leaf sheaths and straws were observed in two commercial fields located in Haenam (N34°38'35.

Zero Dimensional-Two Dimensional Hybrid Photodetectors Using Multilayer MoS and Lead Halide Perovskite Quantum Dots with a Tunable Bandgap.

We report high-performance 0D-2D hybrid photodetectors integrated with tunable band gap perovskite (CsPbI, CsFAPbI, and FAPbI) quantum dots and MOCVD-grown bilayer MoS. In our hybrid structure, the lead halide PQDs can be utilized as an absorbing layer of light of specific wavelengths and transfer the photogenerated carriers to the MoS transport layer. With tunable wavelength lead halide PQDs, the 0D-2D hybrid photodetector shows a high responsivity up to 10 AW and high specific detectivity exceeding 10 Jones due to the difference in the built-in potential between PQDs and multilayer MoS layers.

First Report of Brown Spot Caused by Alternaria alternata on Potato (Solanum tuberosom L.) in Korea.

In June 2020, brown spot symptoms were observed in a commercial potato field located in Yeocheon, Gyeonggi Province, Korea. The symptoms were similar to those associated with early blight. Brown lesions on leaves were circular and expanded rapidly under high humidity and warm temperatures ranging 12°C at night to 30°C during daytime.

Multilayer WSe /MoS Heterojunction Phototransistors through Periodically Arrayed Nanopore Structures for Bandgap Engineering.

While 2D transition metal dichalcogenides (TMDs) are promising building blocks for various optoelectronic applications, limitations remain for multilayered TMD-based photodetectors: an indirect bandgap and a short carrier lifetime by strongly bound excitons. Accordingly, multilayered TMDs with a direct bandgap and an enhanced carrier lifetime are required for the development of various optoelectronic devices. Here, periodically arrayed nanopore structures (PANS) are proposed for improving the efficiency of multilayered p-WSe /n-MoS phototransistors.

An Asymmetry Field-Effect Phototransistor for Solving Large Exciton Binding Energy of 2D TMDCs.

The probing of fundamental photophysics is a key prerequisite for the construction of diverse optoelectronic devices and circuits. To date, though, photocarrier dynamics in 2D materials remains unclear, plagued primarily by two issues: a large exciton binding energy, and the lack of a suitable system that enables the manipulation of excitons. Here, a WSe -based phototransistor with an asymmetric split-gate configuration is demonstrated, which is named the "asymmetry field-effect phototransistor" (AFEPT).

Optimization of -Mediated Transformation of EL000614, an Endolichenic Fungus Producing Grammicin.

An endolichenic fungus EL000614 produces grammicin, a potent nematicidal pyrone derivative that can serve as a new control option for root-knot nematodes. We optimized an -mediated transformation (ATMT) protocol for to support genetic studies. Transformants were successfully generated after co-cultivation of homogenized young mycelia of with strain AGL-1 carrying a binary vector that contains the bacterial hygromycin B phosphotransferase () gene and the gene in T-DNA.

Production and Activity of Cristazarin in the Lichen-Forming Fungus .

Lichens are a natural source of bioactive compounds. var. KoLRI002260 is a rare lichen known to produce phenolic compounds, such as rhodocladonic, thamnolic, and didymic acids.

Nematicidal Activity of Grammicin Biosynthesis Pathway Intermediates in KCTC 13121BP against .

Grammicin, a polyketide metabolite produced by the endolichenic fungus KCTC 13121BP, shows strong nematicidal activity against This study was performed to elucidate the grammicin biosynthesis pathway of KCTC 13121BP and to examine the nematicidal activity of the biosynthesis intermediates and derivatives against . Two grammicin biosynthesis intermediates were isolated from a T-DNA insertion transformant (strain TR-74) of KCTC 13121BP and identified as 2-(hydroxymethyl)cyclohexa-2,5-diene-1,4-dione (compound ) and 2,5-dihydroxybenzaldehyde (compound ), which were also reported to be intermediates in the biosynthesis pathway of patulin, an isomer of grammicin. This indicates that the grammicin biosynthesis pathway overlaps almost with that of patulin, except for the last few steps.

Draft Genome Sequence of EL000614, a Strain Producing Grammicin, a Potent Nematicidal Compound.

An endolichenic fungus, strain EL000614, showed strong nematicidal effects against plant pathogenic nematode, by producing grammicin. We report genome assembly of EL000614 comprised of 25 scaffolds with a total length of 54.73 Mb, N50 of 4.

Transcriptome Analysis Identifies a Gene Cluster for the Biosynthesis of Biruloquinone, a Rare Phenanthraquinone, in a Lichen-Forming Fungus .

Lichens are prolific producers of natural products of polyketide origin. We previously described a culture of lichen-forming fungus (LFF) that produces biruloquinone, a purple pigment that is a phenanthraquinone rarely found in nature. However, there was no genetic information on the biosynthesis of biruloquinone.

Establishment of -Mediated Transformation of , a Model Lichen-Forming Fungus.

Despite the fascinating biology of lichens, such as the symbiotic association of lichen-forming fungi (mycobiont) with their photosynthetic partners and their ability to grow in harsh habitats, lack of genetic tools manipulating mycobiont has hindered studies on genetic mechanisms underpinning lichen biology. Thus, we established an -mediated transformation (ATMT) system for genetic transformation of a mycobiont isolated from . A set of combinations of ATMT conditions, such as input biomass of mycobiont, co-cultivation period with cells, and incubation temperature, were tested to identify an optimized ATMT condition for the mycobiont.

First Report of Bleeding Canker of Pear Tree Trunks Caused by Dickeya fangzhongdai in Korea.

Pears (Pyrus pylifolia L.) are cultivated nationwide as one of the most economically important fruit trees in Korea. At the end of October 2019, bleeding canker was observed in a pear orchard located in Naju, Jeonnam Province (34°53'50.