Information quality assessment in Korean manufacturing organization

Information quality is a complex problem. Issues relating to information quality are strongly embedded in the context of the operations of information systems. Information quality issues, therefore, have qualitative as well as quantitative underpinnings, which affect on the various dimensions of information quality. In order to improve information quality, it is essential to assess its various dimensions. This assessment provides the gaps that work as the building blocks for improving quality of information. However, assessing information quality dimensions is extremely intricate because each dimension depends upon other dimensions, which makes it difficult to objectively assess these dimensions. This research utilizes a product perspective of information and applies Six-Sigma methodology to assess information quality. It describes a case study of a Korean manufacturing organization where analytical hierarchy process and quality function deployment was utilized to determine the mutual relationships of information quality dimensions and critical to information quality factors.<br /

Korean honorifics: a case study analysis of Korean Speech levels in naturally occurring conversations

The Korean honorific system, one of the significant grammatical systems in Korean, indicates the hierarchical social status of participants and plays an essential role in social interaction. For example, the speech levels are forms of sentence final suffixes attached to verbs and adjectives. They can be grammatically organized according to speakers' relationships. Speakers must choose among these verb endings and/or vocabulary items during every interaction. Therefore, the proper use of speech levels is a key factor in the expression of social identities, speakers' interpersonal feelings, and relationships. However, interpersonal feelings and relationships are hard to explain through actual use of speech levels. There are two aspects of interpersonal relationships between the participants in a conversation that affect the use of honorifics: vertical distance (gender, age) and horizontal distance (the degree of intimacy), and these two aspects of interpersonal relationships show the complexity of the use of speech levels. Because of the complexity of the use of speech levels, many Korean language learners feel that it is difficult to learn Korean speech levels. Several researchers have examined Korean language textbooks and language teaching in terms of Korean honorifics. They have pointed out several problems in current teaching materials and emphasized the importance of pragmatic factors and the necessity of authentic data to fully reflect actual Korean honorific uses. Addressing these issues, the thesis demonstrates the need for teaching materials that introduce how honorific speech levels are used in naturally occurring conversation by showing the complexity of how one speaker can use and switch among speech levels depending on the interlocutors or situations in the conversational interaction

An immunohistochemical study of the pancreatic endocrine cells of the ddN mouse.

The regional distribution and frequency of the pancreatic endocrine cells in the ddN mouse were studied using specific antisera against insulin, glucagon, somatostatin and human pancreatic polypeptide (hPP). In the pancreatic islets, most of insulin-immunoreactive (IR) cells were located in the central region, and glucagon-, somatostatin and hPP-IR cells were located in the peripheral region regardless of the lobe. In the splenic part, glucagon-IR cells were also located in the central regions, and more numerous somatostatin-IR cells were detected in the central regions as compared with the duo-denal part. hPP-IR cells were restricted to the peripheral regions in both lobes but more numerous cells were detected in the duodenal portion. In the exocrine parenchyma of the splenic lobe, only insulin- and glucagon-IR cells were detected but all four kinds of IR cells were observed in the duodenal portion. In addition, insulin and hPP-IR cells were also demonstrated in the pancreatic duct regions. In conclusion, some strain-dependent characteristic distributional patterns of pancreatic endocrine cells were found in the ddN mouse with somewhat different distributional patterns between the two pancreatic lobes

Contact Curve Based Simulation of Side Chains from Two Amino Acids in a Protein Molecule

In this paper, an algorithm to compute the contact configuration between the rotating side chains from two amino acids in a protein molecule is proposed. The main chain and side chain parts in one amino acid are considered as two rigidbody parts combined with a revolute joint. While the atom positions in the main chain parts of two amino acids are fixed, the side chains possibly rotate, which can cause the collision between amino acids. On the plane of rotation angle parameters, we find the region for two side chains colliding each other. Then, by extracting the boundary of the region, the contact curve of the amino acids is found, where by using it, the amino acids with rotating side chains can be simulated

Turbo Warrants under Hybrid Stochastic and Local Volatility

This paper considers the pricing of turbo warrants under a hybrid stochastic and local volatility model. The model consists of the constant elasticity of variance model incorporated by a fast fluctuating Ornstein-Uhlenbeck process for stochastic volatility. The sensitive structure of the turbo warrant price is revealed by asymptotic analysis and numerical computation based on the observation that the elasticity of variance controls leverage effects and plays an important role in characterizing various phases of volatile markets

Towards Multi-domain Face Landmark Detection with Synthetic Data from Diffusion model

Recently, deep learning-based facial landmark detection for in-the-wild faces has achieved significant improvement. However, there are still challenges in face landmark detection in other domains (e.g. cartoon, caricature, etc). This is due to the scarcity of extensively annotated training data. To tackle this concern, we design a two-stage training approach that effectively leverages limited datasets and the pre-trained diffusion model to obtain aligned pairs of landmarks and face in multiple domains. In the first stage, we train a landmark-conditioned face generation model on a large dataset of real faces. In the second stage, we fine-tune the above model on a small dataset of image-landmark pairs with text prompts for controlling the domain. Our new designs enable our method to generate high-quality synthetic paired datasets from multiple domains while preserving the alignment between landmarks and facial features. Finally, we fine-tuned a pre-trained face landmark detection model on the synthetic dataset to achieve multi-domain face landmark detection. Our qualitative and quantitative results demonstrate that our method outperforms existing methods on multi-domain face landmark detection.Comment: 6 pages, ICASSP 2024 accepte

Effects of fibrin-binding oligopeptide on osteopromotion in rabbit calvarial defects

Purpose: Fibronectin (FN) has been shown to stimulate bone regeneration in animal models. The aim of this study was to evaluate the capacity of bovine bone mineral coated with synthetic oligopeptides to enhance bone regeneration in rabbit calvarial defects. Methods: Oligopeptides including fibrin-binding sequences of FN repeats were synthesized on the basis of primary and tertiary human plasma FN structures. Peptide coated and uncoated bone minerals were implanted into 10 mm calvarial defects in New Zealand white rabbits, and the animals were sacrificed at 4 or 8 weeks after surgery. After specimens were prepared, histologic examination and histomorphometric analysis were performed. Results: At 4 weeks after surgery, the uncoated groups showed a limited amount of osteoid formation at the periphery of the defect and the oligopeptide coated groups showed more osteoid formation and new bone formation in the center of the defect as well as at the periphery. At 8 weeks, both sites showed increased new bone formation. However, the difference between the two sites had reduced. Conclusions: Fibrin-binding synthetic oligopeptide derived from FN on deproteinized bovine bone enhanced new bone formation in rabbit calvarial defects at the early healing stage. This result suggests that these oligopeptides can be beneficial in reconstructing oral and maxillofacial deformities or in regenerating osseous bone defects. ⓒ 2010 Korean Academy of Periodontology.