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More importantly, a NVS based on the proposed visual sensor array is constructed for achieving neuromorphic visual preprocessing with an improved color image recognition rate of 100%.BACKGROUND Situs inversus totalis (SIT) is a rare congenital anomaly in which the patient's internal organs are positioned in a mirror image of their normal locations. Laparoscopic surgery for a patient with SIT requires modification of the standard procedure. Several studies have recently reported surgical techniques for laparoscopic colectomy in patients with SIT. Herein, we present the case of a patient with congenital SIT who underwent laparoscopic colectomy for transverse colon cancer with intracorporeal anastomosis and discuss the usefulness of preoperative assessment. CASE REPORT A 63-year-old woman with SIT was referred to our department for surgical intervention following endoscopic submucosal dissection of transverse colon cancer. We performed a successful laparoscopic colectomy with intracorporeal anastomosis. Our team had no prior experience performing laparoscopic surgery on a patient with SIT; however, preoperative image training using a horizontally flipped video of a normal laparoscopic colectomy enabled the operation to be performed safely. Preoperative image training is very useful for gaining an understanding of images similar to the actual field of view before surgery. The patient was discharged without complications on the eighth postoperative day. CONCLUSIONS Careful preoperative assessment that takes into consideration the mirror-image anatomy and the contemplated laparoscopic procedure should allow patients with SIT to fully benefit from minimally invasive surgery.
Intervessel pit membranes (PMs) are important cell wall structures in the vessel system that may impact a plant's water transport and its susceptibility to vascular diseases. Functional roles of intervessel PMs largely depend on their structure and polysaccharide composition, which are the targets of this study.
With grapevine used as a model plant, this study applied an immunogold-scanning electron microscopy technique to simultaneously analyse at high resolution intervessel PM structures and major pectic and hemicellulosic polysaccharides that make up intervessel PMs.
Intervessel PMs in functional xylem showed significant structural variation, with about 90 % of them being structurally intact with smooth or relatively smooth surfaces and the remaining 10 % with progressively degraded structures. The results also elucidated details of the removal process of cell wall materials from the intervessel PM surface toward its depth during its natural degradation. Four groups of pectic and hemicellulosic polys major groups of pectic and hemicellulosic polysaccharides with different spatial distributions and abundance. This information is crucial to reveal the polysaccharide profiling of the primary cell wall and to understand the roles of intervessel PMs in the regulation of water transport as well as in a plant's susceptibility to vascular diseases.Ligature strangulation is more common in homicides and is rarely seen in suicides and sexual asphyxia involving neck compression. We report a rare case of a dentist found dead of ligature strangulation next to a dental unit. The ligature was attached to the window frame, wrapped tightly around the neck once with a noose, and tied at the midpoint of the neck and at the head of the dental chair. A death scene and medicolegal investigation suggested suicidal ligature strangulation. The victim was squatting next to the dental unit with the control panel within reach. Pressing Button 1 (the recline button) would have tightened the ligature around the neck. A container containing pink nylon ribbon was found near the victim. The position of the knot at the front of the neck was consistent with suicide. Bloodstain pattern analysis confirmed the longitudinal flow pattern. No other remarkable findings were observed. Nobody had visited the clinic, autopsy found no drugs in his system, and the environment was undisturbed. Homicide was ruled out. According to witnesses, the victim had been in litigation with the owner of the building where his clinic was located. There were no reports of the victim having engaged in any unusual sexual or autoerotic activity. He had not received any death threats. Approximately 1 h before his death, he sent a suicide text message to his wife. Our case highlights the importance of distinguishing between suicide and homicide, especially in cases of ligature strangulation.Optical rectennas extend the electromagnetic wave rectification process into the visible regime and provide a route toward high-performance photodetection and energy harvesting. Here, the promise of 2D materials toward on-chip optical rectennas is demonstrated. A self-aligned patterning process yields lateral MIM structures where a nanometer-sized air gap separates a 2D material contact from a metal electrode. This device can be scalably produced in large arrays using established microfabrication techniques. Different from previous approaches, the performance of the 2D rectenna can be adjusted through electrostatic gating. Optimization of the band alignment leads to strong rectification at wavelengths around 500 nm and clear polarization control. Comparison of wavelength-dependent rectenna performance with a photon-assisted tunneling model reveals a tenfold increase in photon-electron coupling over nanotube-based rectennas. The results highlight the potential of 2D material-based rectennas for future quantum computing applications.
To investigate the chewing efficiency and oral health-related quality of life of edentulous patients wearing complete dentures, successively supported by one, two, and three implants in the mandible.
Thirteen (13) edentulous patients of at least 50 years of age received three implants in the mandible. After a conventional submerged healing period, the central implant was uncovered and connected to the denture base using a stud attachment. Two months later, chewing efficacy was evaluated, and the two lateral implants were uncovered and connected to the denture base. The central retention element was replaced by a short healing abutment with no connection to the denture base. Chewing efficiency was evaluated two months later. Afterward, the healing abutment of the central implant was replaced by a stud attachment and again connected to the denture base. Two months later, chewing efficacy was evaluated again. Oral health-related quality of life (OHRQoL) was measured at each recall visit using the summary scoieved with two implants.Signal transduction is pivotal for the transfer of information between and within living cells. The composition and spatial organization of specified compartments are key to propagating soluble signals. Here, a high-throughput platform mimicking multistep signal transduction which is based on a geometrically defined array of immobilized catalytic nanocompartments (CNCs) that consist of distinct polymeric nanoassemblies encapsulating enzymes and DNA or enzymes alone is presented. The dual role of single entities or tandem CNCs in providing confined but communicating spaces for complex metabolic reactions and in protecting encapsulated compounds from denaturation is explored. To support a controlled spatial organization of CNCs, CNCs are patterned by means of DNA hybridization to a microprinted glass surface. Specifically, CNC-functionalized DNA microarrays are produced where individual reaction compartments are kept in close proximity by a distinct geometrical arrangement to promote effective communication. Besides a remarkable versatility and robustness, the most prominent feature of this platform is the reversibility of DNA-mediated CNC-anchoring which renders it reusable. Micropatterns of polymer-based nanocompartment assemblies offer an ideal scaffold for the development of the next generation responsive and communicative soft-matter analytical devices for applications in catalysis and medicine.Ecological networks represent the architecture over which diversity is assembled. The compartmentalization of trophic links and the spatial aggregation of species determine ecosystem dynamics and stability. Species traits such as body size or those related to dispersal ability or environmental and trophic niche may determine the role of a species in different ecological networks such as food webs and occurrence networks. However, the empirical analysis of these connections and their determinants were seldom considered. WZ811 research buy Our study focused on 16 species of piscivorous fishes from 27 water bodies of the Paraná River floodplain, which were surveyed between 4 and 20 times over 5 years. Occurrence networks and food webs were built from abundance of species by site and preys by gut content. Using null models and methods for weighted bipartite networks, we evaluated the compartmentalization in both kinds of networks. The topological roles of species in each network along four hydro-climatic conditions were calculated,le modular structure observed at higher levels. The recognition of the connecting role of the species in the different networks will improve the understanding of their importance in the functioning of ecosystems, thus enhancing the knowledge of the mechanisms shaping biodiversity.
A portable spirometer is a promising alternative to a traditional pulmonary function test (PFT) spirometer for respiratory function evaluation.
This study aimed to investigate the accuracy of automated interpretation of the PFT measured by a portable Yue Cloud spirometer in Chinese adults.
The PFT was performed to evaluate subjects prospectively enrolled at Ruijin Hospital (n = 220). A Yue Cloud spirometer and a conventional Jaeger MasterScreen device were applied to each patient with a 20-min quiescent period between each measurement. Pulmonary function parameters, including forced vital capacity (FVC), forced expiratory volume in the first second (FEV1), peak expiratory flow (PEF), maximal expiratory flow at 25%, 50%, and 75% of the FVC (MEF25, MEF50, and MEF75, respectively), and maximal mid-expiratory flow (MMEF), were compared by correlation analyses and Bland-Altman methods. The Yue Cloud spirometer automatically interpreted the PFT results, and a conventional strategy was performed to interpret the PFT results obtained by the Jaeger machine. Concordance of the categorization of pulmonary dysfunction, small airway dysfunction, and severity was analyzed by the kappa (κ) statistic.
Significantly similar correlations of all variables measured with the two spirometers were observed (all p < 0.001). No significant bias was observed in any of the measured spirometer variables. A satisfactory concordance of pulmonary function and severity classification was observed between the automated interpretation results obtained with the Yue Cloud spirometer vs. a conventional spirometer interpretation strategy (all κ > 0.80).
The portable Yue Cloud spirometer not only yields reliable measurements of pulmonary function but also can automatically interpret the PFT results.
The portable Yue Cloud spirometer not only yields reliable measurements of pulmonary function but also can automatically interpret the PFT results.
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