Wireless Mouth Motion Recognition System Based on EEG-EMG Sensors for Severe Speech Impairments.

This study aims to demonstrate the feasibility of using a new wireless electroencephalography (EEG)-electromyography (EMG) wearable approach to generate characteristic EEG-EMG mixed patterns with mouth movements in order to detect distinct movement patterns for severe speech impairments. This paper describes a method for detecting mouth movement based on a new signal processing technology suitable for sensor integration and machine learning applications. This paper examines the relationship between the mouth motion and the brainwave in an effort to develop nonverbal interfacing for people who have lost the ability to communicate, such as people with paralysis.

A Wearable Multimodal Wireless Sensing System for Respiratory Monitoring and Analysis.

Wireless sensing systems are required for continuous health monitoring and data collection. It allows for patient data collection in real time rather than through time-consuming and expensive hospital or lab visits. This technology employs wearable sensors, signal processing, and wireless data transfer to remotely monitor patients' health.

Extraction of Lumbar Spine Motion Using a 3-IMU Wearable Cluster.

Spine movement is a daily activity that can indicate health status changes, including low back pain (LBP) problems. Repetitious and continuous movement on the spine and incorrect postures during daily functional activities may lead to the potential development and persistence of LBP problems. Therefore, monitoring of posture and movement is essential when designing LBP interventions.

Techniques for characterizing mechanical properties of soft tissues.

The characterization of soft tissues remains a vital need for various bioengineering and medical fields. Developing areas such as regenerative medicine, robot-aided surgery, and surgical simulations all require accurate knowledge about the mechanical properties of soft tissues to replicate their mechanics. Mechanical properties can be characterized through several different characterization techniques such as atomic force microscopy, compression testing, and tensile testing.

Characterization of mechanical properties of soft tissues using sub-microscale tensile testing and 3D-Printed sample holder.

Obtaining the mechanical properties of soft tissues is critical in many medical fields, such as regenerative medicine and surgical simulation training. Although various tissue-characterization methods have been developed, such as AFM, indentation, and elastography, there remain some limitations on their accuracy and validity for measuring small and fragile soft tissues. This paper presents a tensile testing technique to measure the mechanical properties of soft tissues directly and accurately.

Extraction and Analysis of Respiratory Motion Using a Comprehensive Wearable Health Monitoring System.

Respiratory activity is an important vital sign of life that can indicate health status. Diseases such as bronchitis, emphysema, pneumonia and coronavirus cause respiratory disorders that affect the respiratory systems. Typically, the diagnosis of these diseases is facilitated by pulmonary auscultation using a stethoscope.

Identification of Gait Motion Patterns Using Wearable Inertial Sensor Network.

Gait signifies the walking pattern of an individual. It may be normal or abnormal, depending on the health condition of the individual. This paper considers the development of a gait sensor network system that uses a pair of wireless inertial measurement unit (IMU) sensors to monitor the gait cycle of a user.

Extraction and Analysis of Respiratory Motion Using Wearable Inertial Sensor System during Trunk Motion.

Respiratory activity is an essential vital sign of life that can indicate changes in typical breathing patterns and irregular body functions such as asthma and panic attacks. Many times, there is a need to monitor breathing activity while performing day-to-day functions such as standing, bending, trunk stretching or during yoga exercises. A single IMU (inertial measurement unit) can be used in measuring respiratory motion; however, breathing motion data may be influenced by a body trunk movement that occurs while recording respiratory activity.

Active brainwave pattern generation for brain-to-machine communication.

Over the years of research, Electroencephalogram (EEG) signal study has grown to give promising outcomes. A lot of research has been done on implementing brain-computer-interfaces, and the brain-computer interface (BCI) algorithm as well as the study of the effects of different stimuli on brain signals. This paper intends to make progress toward that goal by developing a responsive real-time EEG-based brain-to-machine communication system by generating distinct EEG signals at will and identification of the explicit pattern that they reflect for the presented self-induced internal visual and auditory stimuli.

A Wireless 32-Channel Implantable Bidirectional Brain Machine Interface.

All neural information systems (NIS) rely on sensing neural activity to supply commands and control signals for computers, machines and a variety of prosthetic devices. Invasive systems achieve a high signal-to-noise ratio (SNR) by eliminating the volume conduction problems caused by tissue and bone. An implantable brain machine interface (BMI) using intracortical electrodes provides excellent detection of a broad range of frequency oscillatory activities through the placement of a sensor in direct contact with cortex.

Clinical Features and Awareness of Hand Eczema in Korea.

Background: Hand eczema is one of the most common skin disorders and negatively affects quality of life. However, a large-scale multicenter study investigating the clinical features of patients with hand eczema has not yet been conducted in Korea.

Objective: To identify the prevalence of various hand diseases, which is defined as all cutaneous disease occurring in hands, and to investigate the clinical features of patients with hand eczema and the awareness about hand eczema in the general population and to compare the prevalence of hand eczema between health care providers and non-health care providers.

Histological and Mathematical Analysis of the Irreversibly Electroporated Liver Tissue.

Irreversible electroporation has clinically been used to treat various types of cancer. A plan on how to apply irreversible electroporation before practicing is very important to increase the ablation area and reduce the side effects. Several electrical models have been developed to predict the ablation area with applied electric energy.

Facial swelling: an atypical presentation of cutaneous lymphoma.

Background: Cutaneous lymphomas (primary and secondary lymphomas involving the skin) are a heterogeneous group with various clinical manifestations, histological features, and prognoses.

Methods: We describe eight cases of cutaneous lymphoma presenting with facial swelling.

Results: Our case series included three cases of primary cutaneous extranodal natural killer/T-cell lymphoma, one case of secondary cutaneous extranodal natural killer/T-cell lymphoma, one case of subcutaneous panniculitis-like T-cell lymphoma, one case of cutaneous CD4+ small/medium pleomorphic T-cell lymphoma, and two cases of peripheral T-cell lymphoma (unspecified).

Cutaneous anaplastic large-cell lymphoma (ALCL): A comparative clinical feature and survival outcome analysis of 52 cases according to primary tumor site.

Background: Cutaneous anaplastic large-cell lymphoma (ALCL) is primary extranodal or secondary to nodal disease.

Objective: We sought to analyze clinical features and survival outcomes by primary tumor site in patients with cutaneous ALCL.

Methods: Clinical features, survival outcomes, and prognostic factors of 52 patients with primary or secondary cutaneous ALCL to primary nodal disease were retrospectively evaluated using medical records.

Comparative histopathologic analysis of cutaneous extranodal natural killer/T-cell lymphomas according to their clinical morphology.

Background: Few studies have evaluated the histopathologic features of cutaneous extranodal natural killer (NK)/T-cell lymphoma (ENKTL), and the histopathologic spectrum of this disease according to its clinical morphology remains unclear.

Objective: This study investigated the differences in pathologic findings of cutaneous ENKTL depending on clinical morphology.

Methods: A total of 41 cases of cutaneous ENKTL were included.

Clinical and histopathologic analysis of 46 cases of cutaneous adverse reactions to imatinib.

Background: Although many cases of cutaneous adverse reactions to imatinib have been reported, their clinical and histopathologic characteristics are not well documented.

Objectives: The present study investigated clinical and histopathologic characteristics of cutaneous adverse reactions to imatinib.

Methods: This retrospective study referred to 46 patients who experienced cutaneous adverse reactions to imatinib.

Histopathological Analysis of 226 Patients With Rosacea According to Rosacea Subtype and Severity.

Background: The histopathological features of rosacea have not been described in detail.

Objective: To evaluate the histopathological features of rosacea according to clinical characteristics such as subtype and severity.

Methods: We retrospectively analyzed histopathological findings in 226 patients with rosacea, which included 52 patients with the erythematotelangiectatic rosacea (ETR) and 174 patients with the papulopustular rosacea (PPR) subtype.

A Case of Metastatic Gastric Adenocarcinoma Mimicking Preseptal Cellulitis.

Cutaneous metastasis from gastric adenocarcinoma is uncommon, and the eyelid is a rare metastatic site. Three patterns of clinical presentation of eyelid metastasis have been described: nodular, infiltrative, and ulcerated. The infiltrative pattern, also known as an inflammatory diffuse pattern or mask-like metastasis, can be easily misdiagnosed as cellulitis or contact dermatitis.

Usefulness of Skin Explants for Histologic Analysis after Fractional Photothermolysis.

Background: Fractional laser resurfacing treatment has been extensively investigated and is widely used. However, the mechanism underlying its effects is poorly understood because of the ethical and cosmetic problems of obtaining skin biopsies required to study the changes after laser treatment.

Objective: To evaluate the usefulness of human skin explants for the investigation of fractional photothermolysis.

Histological and molecular analysis of the long-pulse 1,064-nm Nd:YAG laser irradiation on the ultraviolet-damaged skin of hairless mice: In association with pulse duration change.

Background: Nonablative lasers have been widely used to improve photodamaged skin, although the mechanism underlying dermal collagen remodeling remains unclear.

Objective: To investigate the effects and the molecular mechanisms of long-pulse neodymium-doped yttrium aluminum garnet (Nd:YAG) laser irradiation on dermal collagen remodeling in association with different pulse durations.

Material And Methods: Five hairless mice were pretreated with ultraviolet B irradiation for 8 weeks.