- Anesthesia and Pain Management
- Veterinary Pharmacology and Anesthesia
- Airway Management and Intubation Techniques
- Spine and Intervertebral Disc Pathology
- Nonlinear Dynamics and Pattern Formation
- Veterinary Equine Medical Research
- Neural dynamics and brain function
- Peripheral Nerve Disorders
- Hemodynamic Monitoring and Therapy
- Advanced MRI Techniques and Applications
- stochastic dynamics and bifurcation
- Restraint-Related Deaths
- Cardiovascular Conditions and Treatments
- Neural Networks Stability and Synchronization
- Tracheal and airway disorders
- Non-Invasive Vital Sign Monitoring
- Medical Imaging and Pathology Studies
- Head and Neck Surgical Oncology
- Nerve Injury and Rehabilitation
- Veterinary Medicine and Surgery
- Photonic and Optical Devices
- Orthopedic Surgery and Rehabilitation
- Pain Management and Opioid Use
- Complex Systems and Time Series Analysis
- Nasal Surgery and Airway Studies
National Health Insurance Service Ilsan Hospital
2025
Seoul National University
2007-2023
Chung-Ang University
2018
Brigham and Women's Hospital
2005
Andrews University
1998
We study the synchronization phenomena in a system of globally coupled oscillators with time delay coupling. The self-consistency equations for order parameter are derived, which depend explicitly on amount delay. Analysis these reveals that general exhibits discontinuous transitions addition to usual continuous transition, between incoherent state and multitude coherent states different frequencies. In particular, phase diagram is obtained plane coupling strength time, ubiquity...
This study presents transatrial stenting as a palliative treatment for central venous obstruction in dogs with cardiac tumors. Two presented lethargy and respiratory distress. On diagnostic imaging, large tumor was identified both dogs. One dog showed pleural effusion, plethoric caudal vena cava (CdVC), hepatic congestion, ascites. The other had cervical swelling effusion. Transatrial performed the cranial cava, right atrium, CdVC relief of caval atrial compression due to Clinical...
ABSTRACT Brimonidine stimulates the chemoreceptor trigger zone via alpha‐2 adrenergic receptors in postrema of medulla, which triggers vomiting cats. This case report details occurrence central nervous system (CNS) depression following brimonidine administration to induce a cat that had ingested toxic substance. A 12‐year‐old neutered male American Shorthair was presented hospital after ingesting two leaves Anthurium polyschistum , is 0.15% eye drops intended for ocular were accidentally...
We investigate the synchronization transition of modified Kuramoto model where oscillators form a scale-free network with degree exponent $\ensuremath{\lambda}$. An oscillator ${k}_{i}$ is coupled to its neighboring asymmetric and degree-dependent coupling in $J{k}_{i}^{\ensuremath{\eta}\ensuremath{-}1}$. By invoking mean-field approach, we find eight different behaviors depending on values $\ensuremath{\eta}$ $\ensuremath{\lambda}$, derive critical exponents associated order parameter...
We modify the Kuramoto model for synchronization on complex networks by introducing a gauge term that depends edge betweenness centrality (BC). The introduces additional phase difference between two vertices from 0 to π as BC them increases minimum maximum in network. When network has modular structure, generates within each module, however, not over entire system. Based this feature, we can distinguish modules networks, with relatively little computational time of , where N and L are number...
Abstract Objectives To compare the duration of regional anesthesia pelvic limb using bupivacaine with and without a temperature‐responsive hydrogel (TRH) in dogs. Methods Under medetomidine (10 μg·kg −1 ), alfaxalone (2 mg·kg isoflurane, seven healthy male Beagles received four injections 0.5% (1 5 μg·ml epinephrine) to block femoral sciatic nerves bilaterally via ultrasound nerve stimulation guidance. Bupivacaine was used on one (Bup treatment), TRH contralateral (Bup‐TRH treatment). The...
We report an axial-asymmetric high-Q Fabry-Perot cavity supporting nondegenerate Hermite-Gaussian modes of the same mode order. Axial asymmetry mirror surface was introduced by mechanically grinding off one side a cylindrical substrate without degrading original quality. The bases resulting were aligned with respect to direction grinding, making it possible prescribe principal axes.
This study aimed to evaluate the agreement between oscillometric blood pressure (OBP) measured from tongue and invasive (IBP) dorsal pedal artery in anesthetized dogs of various body weights. Forty-five client-owned undergoing general anesthesia for surgery or imaging scan were included; weights ranged 2.5 42.6 kg. Agreement paired IBP OBP during normotension was verified with reference standards used small animals humans. The data stratified by weight (≤5 kg versus >5 kg). In group (n =...
Abstract A 6‐month‐old, 2.9‐kg, male, Korean short hair cat was referred for inadequate mouth opening (4 mm), and condylectomy scheduled ankylosis of the left temporomandibular joint. Retrograde intubation via cricothyroid membrane planned since direct visualisation larynx not possible. In dorsal recumbency, punctured with an 18‐gauge needle, a J‐tip guidewire, inserted advanced identified at mouth. 6‐Fr truncated feeding tube from to along guidewire. The guidewire removed, tip as...
This study aimed to compare the effect of ethmoidal-maxillary nerve block (EMBLOCK) and topical application 2% lidocaine gel (LGEL) on cardiovascular variables (heart rate arterial blood pressure) during mechanical stimulation nasal cavity. The working hypothesis was that both techniques (EMBLOCK LGEL) similarly blunt responses stimulation. Six beagles were anesthetized using alfaxalone isoflurane three occasions with each treatment (EMBLOCK, LGEL, control) in random order. cavity from nose...
The Willshaw model is a neural network with binary synaptic strengths. In the local inhibition, only one neuron in each block of q neurons active. We formulate using Potts spin variables and extend dynamics to stochastic one. equilibrium states system are characterized by set representing overlap between group patterns state. Stable Mattis-like solutions exist at zero temperature, phase transition found be first order. A related whose Hamiltonian linear interaction also studied. does not...
We analyze the anisotropic Kardar-Parisi-Zhang equation in general substrate dimensions $d'$ with spatially correlated noise, $\langle\tilde \eta({\bf{k}},\omega)\rangle=0$ and \eta({\bf{k}},\omega) \tilde \eta({\bf{k}}',\omega')\rangle$ $=2D(k)\delta^{d'}({\bf{k}}+{\bf{k}}')\delta(\omega+\omega')$ where $D(k)=D_0+D_{\rho}k^{-2\rho}$, using dynamic renormalization group (RG) method. When signs of nonlinear terms parallel perpendicular directions are opposite, a novel finite stable fixed...
Abstract Objective To establish an acceptable extension tube length (ETL) to measure direct blood pressure (BP) in dogs. Design Prospective, experimental study. Setting University‐based small animal research facility. Animals Eight healthy Beagle dogs: 6 males and 2 females. Interventions Each with lengths of 25, 50, 75, 115, 145, 205, 275 cm were connected after the catheterization a 22‐Ga catheter dorsal pedal artery sternal recumbency. A square wave from fast‐flush test was consecutively...
Objectives This study aimed to evaluate the clinical effects of ethmoidal and maxillary nerve blocks during rhinoscopy in dogs. Materials Methods Fourteen dogs underwent rhinoscopy. Under general anaesthesia with isoflurane, were applied bilaterally using 2% lidocaine before eight (EM group). Six premedicated hydromorphone (0.05 mg/kg) as a substitute for local block (H During rhinoscopy, heart rate, arterial blood pressure end‐tidal isoflurane concentration recorded. The vaporizer setting...
Background: Peritoneal dialysis after kidney transplant failure is not referred, because the risk of infection may increase due to use immunosuppressive agents. However, precise association between steroid and peritonitis remains elusive. Methods: 41 patients undergoing peritoneal graft loss (DAGL) were recruited. The divided according tertiles mean dose (mg) or tapering regimen. primary outcome such as first episode was compared using Cox proportional hazard ratio (HR) analysis....
With a view to connecting random mutation on the molecular level punctuated equilibrium behaviour phenotype level, we propose new model for biological evolution, which incorporates and natural selection. In this scheme system evolves continuously into configurations, yielding non-stationary of total fitness. Furthermore, both waiting time distribution species avalanche size display power-law behaviours with exponents close two, are consistent fossil data. These features rather robust,...