scholarly journals Rapid, Automated Tissue Processing Techniques for Small Biopsies Can be used to Produce Quality Sections for Diagnostic Reporting in Histopathology

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Alison Finall
Keyword(s):  
Medical Literature ◽  
Endometrial Biopsy ◽  
Small Samples ◽  
Histopathological Diagnosis ◽  
Microscopic Evaluation ◽  
Detailed Assessment ◽  
Future Outcomes ◽  
Processing Techniques ◽  
Prospective Monitoring

Surgical histopathologists are currently working in a context of high demand and requirement for fast turnaround times to report small diagnostic biopsies. Use of automated rapid cycle processing could improve turnaround times for reporting small biopsies. There are few papers in the medical literature describing detailed assessment of staining quality in verification of automated rapid cycle processing methods. This study assessed quality of immunohistochemical and haematoxylin and eosin staining of 62 paired endometrial biopsy samples processed using standard overnight cycles compared with rapid cycles of either 2, 3 or 4 hours duration. We found that small biopsies adequately fixed in 10% neutral buffered formalin were of sufficient staining quality for use in diagnostic reporting if they were processed for 3 or 4 hours. Five samples in our 2-hour group were of insufficient staining quality for full microscopic evaluation and histopathological diagnosis. As such, the 2-hour method was rejected. Rapid cycles of three hours duration will be adopted in our laboratory for processing small samples. Prospective monitoring of report turnaround times will be needed to assess impact on future outcomes for patients.

Impact of Raw Materials and Processing Techniques on The Microbiological Quality of Egyptian Domiati Cheese

2020 ◽  
Keyword(s):  
Raw Materials ◽  
Microbiological Quality ◽  
Raw Milk ◽  
Plate Count ◽  
E Coli ◽  
Fresh Cheese ◽  
Processing Techniques ◽  
The Impact ◽  
Total Yeast

Domiati cheese is the most popular brand of cheese ripened in brine in the Middle East in terms of consumed quantities. This study was performed to investigate the impact of the microbiological quality of the used raw materials, the applied traditional processing techniques and ripening period on the quality and safety of the produced cheese. Three hundred random composite samples were collected from three factories at Fayoum Governorate, Egypt. Collected samples represent twenty-five each of: raw milk, table salt, calf rennet, microbial rennet, water, environmental air, whey, fresh cheese, ripened cheese & swabs from: worker hands; cheese molds and utensils; tanks. All samples were examined microbiologically for Standard Plate Count (SPC), coliforms count, Staphylococcus aureus (S. aureus) count, total yeast & mould count, presence of E. coli, Salmonellae and Listeria monocytogenes (L. monocytogenes). The mean value of SPC, coliforms, S. aureus and total yeast & mould counts ranged from (79×102 CFU/m3 for air to 13×108 CFU/g for fresh cheese), (7×102 MPN/ cm2 for tank swabs to 80×106 MPN/ml for raw milk), (9×102 CFU/g for salt to 69×106 CFU/g for fresh cheese) and (2×102 CFU/cm2 for hand swabs to 60×104 CFU/g for fresh cheese), respectively. Whereas, E. coli, Salmonella and L. monocytogenes failed to be detected in all examined samples. There were significant differences in all determined microbiological parameters (p ≤0.05) between fresh and ripened cheese which may be attributed to different adverse conditions such as water activity, pH, salt content and temperature carried out to improve the quality of the product.

New Monitoring Strategy for the Quality Control in the Processing Practice of Scutellariae Radix

2020 ◽  
Vol 16 (3) ◽  
pp. 303-311
Author(s):  
Qi Huang ◽  
Chunsong Cheng ◽  
Lili Li ◽  
Daiyin Peng ◽  
Cun Zhang
Keyword(s):  
Quality Control ◽  
Monitoring Strategy ◽  
Scutellariae Radix ◽  
Chromatographic Fingerprints ◽  
New Strategy ◽  
Processed Products ◽  
Main Components ◽  
Processing Techniques ◽  
Multivariate Monitoring

Background: Scutellariae Radix (Huangqin) is commonly processed into 3 products for different clinical applications. However, a simple analytical method for quality control has rarely been reported to quickly estimate the degree of processing Huangqin or distinguish differently processed products or unqualified Huangqin products. Objective: To study a new strategy for quality control in the processing practice of Huangqin. Methods: Seven kinds of flavonoids that mainly exist in Huangqin were determined by HPLC-DAD. Chromatographic fingerprints were established to study the variation and discipline of the 3 processed products of Huangqin. PCA and OPLS-DA were used to classify differently processed products of Huangqin. Results: The results showed that baicalin and wogonoside were the main components in the crude and the alcohol Huangqin herb while baicalein and wogonin mainly existed in carbonized Huangqin. The results of mathematical statistics revealed that the processing techniques can make the quality of medicinal materials more uniform. Conclusion: This multivariate monitoring strategy is suitable for quality control in the processing of Huangqin.

scholarly journals Clay-Based Brick Porosity Estimation Using Image Processing Techniques

2019 ◽  
Vol 29 (1) ◽  
pp. 1226-1234
Author(s):  
Safa Jida ◽  
Hassan Ouallal ◽  
Brahim Aksasse ◽  
Mohammed Ouanan ◽  
Mohamed El Amraoui ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Image Processing ◽  
Scanning Electron Microscopy ◽  
Computer Vision ◽  
Image Processing Techniques ◽  
Processing Techniques ◽  
Porosity Estimation ◽  
Microscopy Images ◽  
Scanning Electron

Abstract This work intends to apprehend and emphasize the contribution of image-processing techniques and computer vision in the treatment of clay-based material known in Meknes region. One of the various characteristics used to describe clay in a qualitative manner is porosity, as it is considered one of the properties that with “kill or cure” effectiveness. For this purpose, we use scanning electron microscopy images, as they are considered the most powerful tool for characterising the quality of the microscopic pore structure of porous materials. We present various existing methods of segmentation, as we are interested only in pore regions. The results show good matching between physical estimation and Voronoi diagram-based porosity estimation.

scholarly journals A palace fit for the future: Desirability in temporal work

2021 ◽  
pp. 147612702110120
Author(s):  
Siavash Alimadadi ◽  
Andrew Davies ◽  
Fredrik Tell
Keyword(s):  
Real Time ◽  
Crucial Role ◽  
The Past ◽  
Renewal Program ◽  
The Future ◽  
Depth Study ◽  
Future Events ◽  
Future Outcomes ◽  
Pluralistic Contexts

Research on the strategic organization of time often assumes that collective efforts are motivated by and oriented toward achieving desirable, although not necessarily well-defined, future states. In situations surrounded by uncertainty where work has to proceed urgently to avoid an impending disaster, however, temporal work is guided by engaging with both desirable and undesirable future outcomes. Drawing on a real-time, in-depth study of the inception of the Restoration and Renewal program of the Palace of Westminster, we investigate how organizational actors develop a strategy for an uncertain and highly contested future while safeguarding ongoing operations in the present and preserving the heritage of the past. Anticipation of undesirable future events played a crucial role in mobilizing collective efforts to move forward. We develop a model of future desirability in temporal work to identify how actors construct, link, and navigate interpretations of desirable and undesirable futures in their attempts to create a viable path of action. By conceptualizing temporal work based on the phenomenological quality of the future, we advance understanding of the strategic organization of time in pluralistic contexts characterized by uncertainty and urgency.

scholarly journals Efficiency of modified Goldman’s technique in open pediatric septoplasty

2021 ◽  
Vol 37 (1) ◽  
Author(s):  
Omar Sabry ◽  
Hazem Dewidar ◽  
Mosaad abdel Aziz ◽  
Amr Elemam ◽  
Ahmed Nassar
Keyword(s):  
Nasal Septum ◽  
Pediatric Population ◽  
Septal Deviation ◽  
Nasal Resistance ◽  
Deviated Nasal Septum ◽  
Assessment Protocol ◽  
Nose Scale ◽  
Detailed Assessment

Abstract Background Performing nasal surgery on children has been the subject of controversy among surgeons. Specifically, the indications for and timing of septoplasty in children have been debated for the last several decades. In this study, we access the efficacy of the modified Goldman’s technique in dealing with caudal septal deviation in pediatric population suffering from severe nasal obstruction and its effect on nasal functions postoperatively. In this study, 30 pediatric patients suffering from deviated nasal septum who are candidate for septoplasty were included and underwent open septoplasty using modified Goldman’s technique. They were subjected to detailed assessment protocol preoperatively including NOSE scale, anterior rhinomanometry, and CT scans. Follow-up assessment was done at second week postoperative including anterior rhinoscopy and nasal endoscopy and 3 months postoperative including NOSE scale and anterior rhinomanometry. Results There was a statistically significant decrease of the NOSE scale severity to none in 90% of cases. Three months postoperative, all of the patients performed postoperative anterior active rhinomanometry with statistically significant decrease in the postoperative total nasal resistance values with inspiratory values ranging from 0.1 to 0.5 Pa/cm3/s with mean of 0.26 Pa/cm3/s and expiratory nasal resistance values ranging from 0.1 to 0.6 Pa/cm3/s with mean of 0.31 Pa/cm3/s. Conclusions Open septoplasty in children using the modified Goldman’s technique has enabled accurate and conservative approach for correction of nasal septal deviation especially those located in the caudal septal region. The technique also offers a significant reduction of the nasal symptoms postoperatively with marked improvement of the nasal resistance and quality of life in severe cases of deviated nasal septum.

Acquired acoria and iris pearls in leprosy: Case report

2021 ◽  
pp. 112067212110240
Author(s):  
Luciana Negrão Almeida Morais ◽  
Joacy Pedro Franco David ◽  
João Victor Peres Lima ◽  
Samia Demachki ◽  
Daniel Guerreiro Diniz ◽  
...  
Keyword(s):  
Case Report ◽  
Cataract Extraction ◽  
Ocular Involvement ◽  
Histopathological Diagnosis ◽  
Extracapsular Cataract Extraction ◽  
Ophthalmological Examination ◽  
Case Description ◽  
Leprosy Case ◽  
Proper Diagnosis

Purpose: To describe a case of a patient presenting with acquired acoria and iris pearls, a rare eye manifestation and pathognomonic finding for leprosy; to reinforce clinical, histopathological, and therapeutic aspects of ocular involvement in leprosy. Methods: Case report. Case description: A 62-year-old male presenting with acquired acoria and iris pearls in both eyes due to leprosy also had anterior uveitis and cataract. Histopathological diagnosis of iris pearls was confirmed by the presence of Hansen’s bacilli. Ophthalmological examination revealed improvement of the visual acuity after iridectomy and extracapsular cataract extraction. Conclusions: To our knowledge, this is the first reported case of acquired acoria in a leprosy patient. It led to impaired vision and reversible blindness. Proper diagnosis and ophthalmological treatment of patients with these conditions are essential for the maintenance of a good quality of life.

scholarly journals Quality of life and welfare of nursing university students: integrative review / Qualidade de vida e bem-estar dos estudantes universitários de enfermagem: revisão integrativa / Calidad de vida y bienestar de los estudiantes de enfermería...

2017 ◽  
Vol 6 (3) ◽  
pp. 72
Author(s):  
Márcia Teles De Oliveira Gouveia ◽  
Hidelkarla Sales De Santana ◽  
Ana Maria Ribeiro Dos Santos ◽  
Girlene Ribeiro Da Costa ◽  
Márcia Astrês Fernandes
Keyword(s):  
Quality Of Life ◽  
University Students ◽  
Allied Health ◽  
Medical Literature ◽  
Integrative Review ◽  
Literature Analysis ◽  
Cumulative Index ◽  
Calidad De Vida ◽  
On Line

Objetivo: realizar busca de publicações científicas nas bases de dados sobre a qualidade de vida e o bem-estar do estudante universitário de enfermagem; descrever e analisar as perspectivas enfocadas na literatura. Metodologia: Revisão Integrativa da Literatura. Foram selecionados vinte e três estudos publicados entre 2010 e 2014, nas bases de dados Literatura Latino Americana e do Caribe de Informação em Ciências da Saúde, Medical Literature Analysis and Retrieval Sistem on-line e o Cumulative Index to Nursing and Allied Health Literature nos idiomas português, inglês e espanhol. Resultados: Observou-se que a qualidade de vida e o bem-estar encontram-se moderadamente bem na avaliação dos estudantes de enfermagem avaliados nos estudos, e que apesar dos estressores decorrentes do curso, os estudantes resolvem as situações estressantes com algumas técnicas de relaxamento e enfrentamento, mas também recorrendo ao uso de álcool e fumo. Os instrumentos utilizados nos estudos: WHOQOL-BREF, Inventário de Depressão de Beck e a Escala de Estresse Percebido. Conclusão: identificadas depressão, insônia, estresse e cansaço, decorrentes da vida acadêmica. Desse modo, importante às instituições e docentes estarem atentos para reconhecer precocemente os indicativos multidimensionais que afetam a qualidade de vida e o bem-estar dos seus estudantes, e implementar medidas preventivas.

Image Sharpness and Contrast Tuning in the Early Visual Pathway

2017 ◽  
Vol 27 (08) ◽  
pp. 1750045 ◽  
Author(s):  
Eduardo Sánchez ◽  
Rubén Ferreiroa ◽  
Adrián Arias ◽  
Luis M. Martínez
Keyword(s):  
Functional Organization ◽  
Ganglion Cells ◽  
Receptive Fields ◽  
Local Contrast ◽  
Retinal Ganglion ◽  
Image Sharpness ◽  
Image Processing Techniques ◽  
Thalamic Relay ◽  
Processing Techniques

The center–surround organization of the receptive fields (RFs) of retinal ganglion cells highlights the presence of local contrast in visual stimuli. As RF of thalamic relay cells follow the same basic functional organization, it is often assumed that they contribute very little to alter the retinal output. However, in many species, thalamic relay cells largely outnumber their retinal inputs, which diverge to contact simultaneously several units at thalamic level. This gain in cell population as well as retinothalamic convergence opens the door to question how information about contrast is transformed at the thalamic stage. Here, we address this question using a realistic dynamic model of the retinothalamic circuit. Our results show that different components of the thalamic RF might implement filters that are analogous to two types of well-known image processing techniques to preserve the quality of a higher resolution version of the image on its way to the primary visual cortex.

High Tc Oxide Superconductors

MRS Bulletin ◽  
1990 ◽  
Vol 15 (6) ◽  
pp. 31-33
Author(s):  
M. Brian Maple
Keyword(s):  
Physical Properties ◽  
Energy Gap ◽  
Vortex State ◽  
Oxide Superconductors ◽  
High Tc ◽  
Superconducting Energy Gap ◽  
Consistent Picture ◽  
Novel Processing ◽  
Processing Techniques

This issue of the MRS BULLETIN is devoted to high Tc superconductivity. It is the sequel to a previous series of articles on the same subject which appeared in the MRS BULLETIN in January 1989. While the articles in the January 1989 issue emphasized the families of high Tc superconducting oxides known at that rime, as well as novel processing techniques and thin films, the papers in this issue focus on the physical properties of high Tc oxide superconductors.The quality of polycrystalline and single-crystal bulk and thin-film materials has improved to the point where researchers can now make reliable measurements of many physical properties representative of the intrinsic behavior of these materials. As a result, a broad spectrum of important issues such as the nature of the electronic structure, the type of superconducting electron pairing, the magnitude and temperature dependence of the superconducting energy gap, the behavior of fluxoids in the vortex state, etc., can be addressed meaningfully. Presently emerging is a consistent picture of the physical properties of the high Tc oxides, which will form the foundation to eventually developing an appropriate theory for the normal and superconducting states of these remarkable materials.

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