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2020

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A Study Of Apelin-36 And Gst Levels With Their Relationship To Lipid And Other Biochemical Parameters In The Prediction Of Heart Diseases In Pcos Women Patients, Shaimaa Emad Ali, Fayhaa M. Khaleel, Farah Emad Ali Sep 2020

A Study Of Apelin-36 And Gst Levels With Their Relationship To Lipid And Other Biochemical Parameters In The Prediction Of Heart Diseases In Pcos Women Patients, Shaimaa Emad Ali, Fayhaa M. Khaleel, Farah Emad Ali

Baghdad Science Journal

This work studies the role of serum apelin-36 and Glutathione S-transferases (GST) activity in association with the hormonal, metabolic profiles and their link to the risk of cardiovascular disease (CVD) in healthy and patients' ladies with polycystic ovary syndrome (PCOS). A total of fifty-four (PCOS) patients and thirty-one healthy woman as a control have been studied. The PCOS patients were subdivided on the basis of body-mass-index (BMI), into 2-subgroups (the first group was obese-PCOS with BMI ≥ 30 and the second group was non-obese PCOS MBI<30). Fasting-insulin-levels and Lipid-profile, Homeostatic-model assessment-of-insulin-resistance (HOMA-IR), follicle-stimulating-hormone (FSH), luteinizing-hormone (LH), testosterone and serum Apelin-36 (AP-36) levels, GST-Activity were done for all groups. PCO patients showed higher concentricity of apelin-36 than healthy (160.43 ±20.81 (pg/ml) versus 85.49 ± 17.85 (pg/ml), P=0.008),while GST-activity decreased in PCOS patients and was higher in the control (7.99 ± 1.19(IU/L)versus 12.96 ±1.90(IU/L)respectively,with a P-value=0.022). Apelin-36 levels are directly interrelated with BMI and Very-low-density-lipoprotein (VLDL) in PCOS patients, but GST-activity levels correlated significantly negatively with (BMI) in PCOS patients. Moreover, obese-PCOS patients show increased AP-36 levels more than non-obese PCOS (185.76± 92.0(pg/ml) versus 123.59±27.65 (pg/ml), P=0.127) respectively, whilst the GST-activity was exhibited to be lower in obese-PCO patients more than in non-obese PCOS (6.99 ± 1.4(IU/L) versus 9.44 ± 2.0(IU/L), P=0.102). The data showed that AP-36 level is negatively associated with GST-activity in PCOS patients. AP-36 isn't legitimately ensured in the pathogenesis of PCO disorder, yet it may be included as an adipokine that is influenced by BMI. The oxidants increased because of the highly levels of VLDL and the lower in the activities of antioxidant, that may be a response to higher levels of oxidative stress. A decrease in the antioxidant capacity and an increase in AP-36 levels leads to an increased the risk of cardiovascular disease in PCOS patients.

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Using Real-Time Pcr To Investigate Some Of Antibiotic Resistance Genes From Streptococcus Agalactiae Isolates From Ewe Mastitis Cases In Nineveh Province, Ayman Albanna, Aseel A. H. Al-Layla Sep 2020

Using Real-Time Pcr To Investigate Some Of Antibiotic Resistance Genes From Streptococcus Agalactiae Isolates From Ewe Mastitis Cases In Nineveh Province, Ayman Albanna, Aseel A. H. Al-Layla

Baghdad Science Journal

In this study, from a total of 856 mastitis cases in lactating ewes, only 34 Streptococcus agalactiae isolates showed various types of resistance to three types of antibiotics (Penicillin, Erythromycin and Tetracycline). St. agalactiae isolates were identified according to the standard methods, including a new suggested technique called specific Chromogenic agar. It was found that antibiotic bacterial resistance was clearly identified by using MIC-microplate assay (dilution method). Also, by real-time PCR technique, it was determined that there were three antibiotics genes resistance ( pbp2b, tetO and mefA ). The high percentage of isolate carried of a single gene which was …

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Silver Nanoparticles And Their Role In Gene Expression Of Motility Gene Motb And Repression Of Ai-2-Controlled Gene, Bassam Shaker Mahmood Sep 2020

Silver Nanoparticles And Their Role In Gene Expression Of Motility Gene Motb And Repression Of Ai-2-Controlled Gene, Bassam Shaker Mahmood

Baghdad Science Journal

Antibiotic resistance is the capability of the strains to resist or protect themselves from the effects of an antibiotic. Such a resistance towards the current antimicrobials leads to the search of novel antimicrobials. Nanotechnology has been promising in different field of science and among it is the use of nanoparticles as antibacterial agents. The gastrointestinal tract seems to be the primary reservoir of uropathogenic E.coli (UPEC) in humans. UPEC strains harbour the urinary tract and cause urinary tract infection. They cause serious ailments in terms of humans. They develop resistance and increase their virulence by forming biofilms. They also show …

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Hiding The Type Of Skin Texture In Mice Based On Fuzzy Clustering Technique, Asst.Prof. Alaa Noori Mazhar, Dr.Ekhlas Falih Naser Sep 2020

Hiding The Type Of Skin Texture In Mice Based On Fuzzy Clustering Technique, Asst.Prof. Alaa Noori Mazhar, Dr.Ekhlas Falih Naser

Baghdad Science Journal

A substantial matter to confidential messages' interchange through the internet is transmission of information safely. For example, digital products' consumers and producers are keen for knowing those products are genuine and must be distinguished from worthless products. Encryption's science can be defined as the technique to embed the data in an images file, audio or videos in a style which should be met the safety requirements. Steganography is a portion of data concealment science that aiming to be reached a coveted security scale in the interchange of private not clear commercial and military data. This research offers a novel technique …

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Ex-Situ Characterization Of Luffa Aegyptaica In Lagos State, Nigeria, Ani, E., Adekunle, A. A., Aboluwade, J. B., Ibrahim, O. A. Sep 2020

Ex-Situ Characterization Of Luffa Aegyptaica In Lagos State, Nigeria, Ani, E., Adekunle, A. A., Aboluwade, J. B., Ibrahim, O. A.

Baghdad Science Journal

Luffa aegyptiaca is a plant of multi-purpose importance whose usefulness cuts across virtually all areas of life. This study has characterized L. aegyptiaca in Lagos state and determined the mineral, proximate, phytochemical as well as the heavy metal accumulation potential. Samples were collected from the 20 Local Government Areas (LGAs) in Lagos state at 2 samples per location. Genetic similarity and intra-specific variation in 40 samples of L. aegyptiaca were determined using 3 Random Amplified Polymorphic DNA (RAPD) primers which yielded a total of 42 markers of which 25 was polymorphic. The maximum number of bands (14) was produced by …

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Prevalence And Characterization Of Some Colibactin Genes In Clinical Enterobacteriaceae Isolates From Iraqi Patients, Mohammed T. Hussein, Safaa A. S. Al-Qaysi, Munther H. Rathi, Qasim I. Hussein, Tarek A.A. Moussa Sep 2020

Prevalence And Characterization Of Some Colibactin Genes In Clinical Enterobacteriaceae Isolates From Iraqi Patients, Mohammed T. Hussein, Safaa A. S. Al-Qaysi, Munther H. Rathi, Qasim I. Hussein, Tarek A.A. Moussa

Baghdad Science Journal

The members of the family of Eentrobacteriaceae harbour a gene cluster called polyketide synthase (pks) island. This cluster is responsible for the synthesis of the genotoxin colibactin that might have an important role in the induction of double-strand DNA breaks, leading to promote human colorectal cancer (CRC). Eleven out of the eighty eight isolates (12.5%) were pks+, distributed as 7 (8%) isolates of E. coli, 2 (2.25%) of K. pneumoniae and 2 (2.25%) of E. aerogenes. The cytotoxic effects of selected pks+ isolates (E. coli and E. aerogenes) on HeLa cells were represented by decreasing cell numbers and enlarged cell …

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Comparative Analysis Of The Environmental Impacts Of Solar Photo-Fenton And Photocatalysis Methods For Treatment Of Phenolic Wastewater On Life-Cycle Basis., Mona Younis, Mohamed Gar Alalam, Hisham El-Etriby Sep 2020

Comparative Analysis Of The Environmental Impacts Of Solar Photo-Fenton And Photocatalysis Methods For Treatment Of Phenolic Wastewater On Life-Cycle Basis., Mona Younis, Mohamed Gar Alalam, Hisham El-Etriby

Mansoura Engineering Journal

This research aims to compare the environmental performance of two methods for phenolic wastewater treatment. The two methods are solar photo-Fenton and solar photocatalysis by TiO2. A case study of 100 m3/d of wastewater contaminated with 100 mg/l of phenol was considered, whereas the functional unit was one cubic meter of treated wastewater. The life cycle inventory included the materials and energy required in both construction and operating phases. The effects of the by-products from phenol oxidation have been considered. The method “Impact 2002” was employed to calculate the different impacts of the two methods. The results showed that solar …

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Brain-Wide Structural And Functional Disruption In Mice With Oligodendrocyte-Specific Nf1 Deletion Is Rescued By Inhibition Of Nitric Oxide Synthase, Jad Asleh, Ben Shofty, Nadav Cohen, Alexandra Kavushansky, Alejandro Lopez-Juarez, Shlomi Constantini, Nancy Ratner, Itamar Kahn Sep 2020

Brain-Wide Structural And Functional Disruption In Mice With Oligodendrocyte-Specific Nf1 Deletion Is Rescued By Inhibition Of Nitric Oxide Synthase, Jad Asleh, Ben Shofty, Nadav Cohen, Alexandra Kavushansky, Alejandro Lopez-Juarez, Shlomi Constantini, Nancy Ratner, Itamar Kahn

Health & Biomedical Sciences Faculty Publications

Neurofibromin gene (NF1) mutation causes neurofibromatosis type 1 (NF1), a disorder in which brain white matter deficits identified by neuroimaging are common, yet of unknown cellular etiology. In mice, Nf1 loss in adult oligodendrocytes causes myelin decompaction and increases oligodendrocyte nitric oxide (NO) levels. Nitric oxide synthase (NOS) inhibitors rescue this pathology. Whether oligodendrocyte pathology is sufficient to affect brain-wide structure and account for NF1 imaging findings is unknown. Here we show that Nf1 gene inactivation in adult oligodendrocytes (Plp-Nf1fl/+ mice) results in a motor coordination deficit. Magnetic resonance imaging in awake mice showed that fractional …

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An Ethnographic Study Of Palliative And End-Of-Life Care In A Nigerian Hospital: Impact Of Education On Care Provision And Utilization, David A. Agom, Tonia C. Onyeka, Jude Ominyi, Judith Sixsmith, Sarah Neill, Stuart Allen, Helen Poole Sep 2020

An Ethnographic Study Of Palliative And End-Of-Life Care In A Nigerian Hospital: Impact Of Education On Care Provision And Utilization, David A. Agom, Tonia C. Onyeka, Jude Ominyi, Judith Sixsmith, Sarah Neill, Stuart Allen, Helen Poole

School of Nursing and Midwifery

Most clinicians receive little or no palliative care (PC) education. Similarly, patients and their families receive little or no information on PC. Our study explored education in PC, while examining for its impacts on service delivery and utilization from the perspective of health care professionals (HCPs), patients, and their families. An ethnographic approach was utilized to gather data from 41 participants. Spradley’s ethnographic analytical framework guided data analysis. Two themes identified were inadequate HCPs’ knowledge base and impact of service-users’ inadequate health education. The findings show that most HCPs had no formal education in PC, attributed to the lack of …

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Impact Of Grazing Intensity On Feed Intake, Herbage Mass, And Animal Productivity In The Steppe Of Inner Mongolia, China, K. Müller, L. Lin, T. Glindemann, C. Wang, Anne Schiborra, P. Schönbach, H. W. Wan, B. M. Tas, M. Gierus, Friedhelm Taube, A. Susenbeth Sep 2020

Impact Of Grazing Intensity On Feed Intake, Herbage Mass, And Animal Productivity In The Steppe Of Inner Mongolia, China, K. Müller, L. Lin, T. Glindemann, C. Wang, Anne Schiborra, P. Schönbach, H. W. Wan, B. M. Tas, M. Gierus, Friedhelm Taube, A. Susenbeth

IGC Proceedings (1977-2023)

No abstract provided.

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Optimal Sward Height For Production In Twin And Triplet Ewes, Stephen T. Morris, Paul R. Kenyon, R. A. Corner Sep 2020

Optimal Sward Height For Production In Twin And Triplet Ewes, Stephen T. Morris, Paul R. Kenyon, R. A. Corner

IGC Proceedings (1977-2023)

No abstract provided.

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'Alpine Meadows' Of The Tibet Plateau Are A Synanthropic Pseudoclimax, G. Miehe, S. Miehe, K. Kaiser, K. Wesche, Xinquan Zhao, Jianquan Liu Sep 2020

'Alpine Meadows' Of The Tibet Plateau Are A Synanthropic Pseudoclimax, G. Miehe, S. Miehe, K. Kaiser, K. Wesche, Xinquan Zhao, Jianquan Liu

IGC Proceedings (1977-2023)

No abstract provided.

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Comparison Of Vegetation Composition Under Different Grazing Intensities In Golestan National Park And Vicinities, Iran, Mansour Mesdaghi, Masoume Amirkhani, E. Bagheri Rad Sep 2020

Comparison Of Vegetation Composition Under Different Grazing Intensities In Golestan National Park And Vicinities, Iran, Mansour Mesdaghi, Masoume Amirkhani, E. Bagheri Rad

IGC Proceedings (1977-2023)

No abstract provided.

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Broad Spectrum Of Plant Species Grazed And Browsed By Cattle In Bolivian Subtropical Mountain Forests, Svenja Marquardt, H. Alzérreca, S. Beck, Michael Kreuzer, Andrea C. Mayer Sep 2020

Broad Spectrum Of Plant Species Grazed And Browsed By Cattle In Bolivian Subtropical Mountain Forests, Svenja Marquardt, H. Alzérreca, S. Beck, Michael Kreuzer, Andrea C. Mayer

IGC Proceedings (1977-2023)

No abstract provided.

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Evaluation Of A Beef Cattle Finishing Simulation Model For Intake And Live Weight Gain Prediction Under Different Herbage And Maize Grain Allowances, Claudio F. Machado, Stephen T. Morris, J. Hodgson, H. Berger Sep 2020

Evaluation Of A Beef Cattle Finishing Simulation Model For Intake And Live Weight Gain Prediction Under Different Herbage And Maize Grain Allowances, Claudio F. Machado, Stephen T. Morris, J. Hodgson, H. Berger

IGC Proceedings (1977-2023)

No abstract provided.

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Fencing Effects On Biodiversity Changes In Desertified Grassland In Hulunbeir, China, Shihai Lu, Jixi Gao, Changsong Feng, Xinshi Lu Sep 2020

Fencing Effects On Biodiversity Changes In Desertified Grassland In Hulunbeir, China, Shihai Lu, Jixi Gao, Changsong Feng, Xinshi Lu

IGC Proceedings (1977-2023)

No abstract provided.

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Influence Of Dietary Forages On The Fatty Acid Profile Of Rumen Digesta, Milk And Meat, Marta Lourenço, B. Vlaeminck, S. De Smet, Veerle Fievez Sep 2020

Influence Of Dietary Forages On The Fatty Acid Profile Of Rumen Digesta, Milk And Meat, Marta Lourenço, B. Vlaeminck, S. De Smet, Veerle Fievez

IGC Proceedings (1977-2023)

No abstract provided.

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Effect Of Four Fertiliser Regimes On The Persistence Of Perennial Native Grasses, Michael J. Keys, B. W. Clements Sep 2020

Effect Of Four Fertiliser Regimes On The Persistence Of Perennial Native Grasses, Michael J. Keys, B. W. Clements

IGC Proceedings (1977-2023)

No abstract provided.

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Altering Myc Phosphorylation In The Epidermis Increases The Stem Cell Population And Contributes To The Development, Progression, And Metastasis Of Squamous Cell Carcinoma, Xiaoyan Wang, Ellen M. Langer, Colin J. Daniel, Mahnaz Janghorban, Vivian Wu, Xiao-Jing Wang, Rosalie C. Sears Sep 2020

Altering Myc Phosphorylation In The Epidermis Increases The Stem Cell Population And Contributes To The Development, Progression, And Metastasis Of Squamous Cell Carcinoma, Xiaoyan Wang, Ellen M. Langer, Colin J. Daniel, Mahnaz Janghorban, Vivian Wu, Xiao-Jing Wang, Rosalie C. Sears

Otolaryngology Articles

cMYC (MYC) is a potent oncoprotein that is subject to post-translational modifications that affect its stability and activity. Here, we show that Serine 62 phosphorylation, which increases MYC stability and oncogenic activity, is elevated while Threonine 58 phosphorylation, which targets MYC for degradation, is decreased in squamous cell carcinoma (SCC). The oncogenic role of MYC in the development of SCC is unclear since studies have shown in normal skin that wild-type MYC overexpression can drive loss of stem cells and epidermal differentiation. To investigate whether and how altered MYC phosphorylation might affect SCC development, progression, and metastasis, we generated mice …

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Perspectives In Melanoma: Meeting Report From The "Melanoma Bridge" (December 5th-7th, 2019, Naples, Italy)., Paolo A Ascierto, Igor Puzanov, Sanjiv S Agarwala, Christian Blank, Richard D Carvajal, Sandra Demaria, Reinhard Dummer, Marc Ernstoff, Soldano Ferrone, Bernard A Fox, Thomas F Gajewski, Claus Garbe, Patrick Hwu, Roger S Lo, Georgina V Long, Jason J Luke, Iman Osman, Michael A Postow, Ryan J Sullivan, Janis M Taube, Giorgio Trinchieri, Hassane M Zarour, Corrado Caracò, Magdalena Thurin Sep 2020

Perspectives In Melanoma: Meeting Report From The "Melanoma Bridge" (December 5th-7th, 2019, Naples, Italy)., Paolo A Ascierto, Igor Puzanov, Sanjiv S Agarwala, Christian Blank, Richard D Carvajal, Sandra Demaria, Reinhard Dummer, Marc Ernstoff, Soldano Ferrone, Bernard A Fox, Thomas F Gajewski, Claus Garbe, Patrick Hwu, Roger S Lo, Georgina V Long, Jason J Luke, Iman Osman, Michael A Postow, Ryan J Sullivan, Janis M Taube, Giorgio Trinchieri, Hassane M Zarour, Corrado Caracò, Magdalena Thurin

Articles, Abstracts, and Reports

The melanoma treatment landscape changed in 2011 with the approval of the first anti-cytotoxic T-lymphocyte-associated protein (CTLA)-4 checkpoint inhibitor and of the first BRAF-targeted monoclonal antibody, both of which significantly improved overall survival (OS). Since then, improved understanding of the tumor microenvironment (TME) and tumor immune-evasion mechanisms has resulted in new approaches to targeting and harnessing the host immune response. The approval of new immune and targeted therapies has further improved outcomes for patients with advanced melanoma and other combination modalities are also being explored such as chemotherapy, radiotherapy, electrochemotherapy and surgery. In addition, different strategies of drugs administration including …

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Activated Protein Kinase C (Pkc) Is Persistently Trafficked With Epidermal Growth Factor (Egf) Receptor, Carol A. Heckman, Tania Biswas, Douglas M. Dimick, Marilyn L. Cayer Sep 2020

Activated Protein Kinase C (Pkc) Is Persistently Trafficked With Epidermal Growth Factor (Egf) Receptor, Carol A. Heckman, Tania Biswas, Douglas M. Dimick, Marilyn L. Cayer

Biological Sciences Faculty Publications

Protein kinase Cs (PKCs) are activated by lipids in the plasma membrane and bind to a scaffold assembled on the epidermal growth factor (EGF) receptor (EGFR). Understanding how this complex is routed is important, because this determines whether EGFR is degraded, terminating signaling. Here, cells were preincubated in EGF-tagged gold nanoparticles, then allowed to internalize them in the presence or absence of a phorbol ester PKC activator. PKC colocalized with EGF-tagged nanoparticles within 5 min and migrated with EGFR-bearing vesicles into the cell. Two conformations of PKC-epsilon were distinguished by different primary antibodies. One, thought to be enzymatically active, was …

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Anti-Human Trem2 Induces Microglia Proliferation And Reduces Pathology In An Alzheimer's Disease Model, Shoutang Wang, Carla M. Yuede, Susan Gilfillan, Marco Colonna, Et Al Sep 2020

Anti-Human Trem2 Induces Microglia Proliferation And Reduces Pathology In An Alzheimer's Disease Model, Shoutang Wang, Carla M. Yuede, Susan Gilfillan, Marco Colonna, Et Al

Open Access Publications

TREM2 is a receptor for lipids expressed in microglia. The R47H variant of human TREM2 impairs ligand binding and increases Alzheimer's disease (AD) risk. In mouse models of amyloid β (Aβ) accumulation, defective TREM2 function affects microglial response to Aβ plaques, exacerbating tissue damage, whereas TREM2 overexpression attenuates pathology. Thus, AD may benefit from TREM2 activation. Here, we examined the impact of an anti-human TREM2 agonistic mAb, AL002c, in a mouse AD model expressing either the common variant (CV) or the R47H variant of TREM2. Single-cell RNA-seq of microglia after acute systemic administration of AL002c showed induction of proliferation in …

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September 7, 2020 Sep 2020

September 7, 2020

The Gavel Gazette

No abstract provided.

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Raman Spectra-Based Deep Learning: A Tool To Identify Microbial Contamination, Murali K. Maruthamuthu, Amir Hossein Raffiee, Denilson Mendes De Oliveira, Arezoo M. Ardekani, Mohit S. Verma Sep 2020

Raman Spectra-Based Deep Learning: A Tool To Identify Microbial Contamination, Murali K. Maruthamuthu, Amir Hossein Raffiee, Denilson Mendes De Oliveira, Arezoo M. Ardekani, Mohit S. Verma

Purdue University Libraries Open Access Publishing Fund

Deep learning has the potential to enhance the output of in-line, on-line, and at-line instrumentation used for process analytical technology in the pharmaceutical industry. Here, we used Raman spectroscopy-based deep learning strategies to develop a tool for detecting microbial contamination. We built a Raman dataset for microorganisms that are common contaminants in the pharmaceutical industry for Chinese Hamster Ovary (CHO) cells, which are often used in the production of biologics. Using a convolution neural network (CNN), we classified the different samples comprising individual microbes and microbes mixed with CHO cells with an accuracy of 95%–100%. The set of 12 microbes …

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Acinar Transformed Ductal Cells Exhibit Differential Mucin Expression In A Tamoxifen-Induced Pancreatic Ductal Adenocarcinoma Mouse Model, Kavita Mallya, Dhanya Haridas, Parthasarathy Seshacharyulu, Ramesh Pothuraju, Wade M. Junker, Shiv Ram Krishn, Sakthivel Muniyan, Raghupathy Vengoji, Surinder K. Batra, Satyanarayana Rachagani Sep 2020

Acinar Transformed Ductal Cells Exhibit Differential Mucin Expression In A Tamoxifen-Induced Pancreatic Ductal Adenocarcinoma Mouse Model, Kavita Mallya, Dhanya Haridas, Parthasarathy Seshacharyulu, Ramesh Pothuraju, Wade M. Junker, Shiv Ram Krishn, Sakthivel Muniyan, Raghupathy Vengoji, Surinder K. Batra, Satyanarayana Rachagani

Journal Articles: Biochemistry & Molecular Biology

Pancreatic cancer (PC) is acquired postnatally; to mimic this scenario, we developed an inducible KrasG12D; Ptf1a-CreER™ (iKC) mouse model, in which Kras is activated postnatally at week 16 upon tamoxifen (TAM) administration. Upon TAM treatment, iKC mice develop pancreatic intraepithelial neoplasia (PanIN) lesions and PC with metastasis at the fourth and fortieth weeks, respectively, and exhibited acinar-to-ductal metaplasia (ADM) and transdifferentiation. Kras activation upregulated the transcription factors Ncoa3, p-cJun and FoxM1, which in turn upregulated expression of transmembrane mucins (Muc1, Muc4 and Muc16) and secretory mucin (Muc5Ac). Interestingly, knockdown of KrasG12D in multiple PC cell lines resulted …

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Legacy And Novel Per- And Polyfluoroalkyl Substances In Juvenile Seabirds From The U.S. Atlantic Coast, Anna R. Robuck, Mark G. Cantwell, James P. Mccord, Lindsay M. Addison, Marisa Pfohl, Mark J. Strynar, Richard Mckinney, David R. Katz, David N. Wiley, Rainer Lohmann Sep 2020

Legacy And Novel Per- And Polyfluoroalkyl Substances In Juvenile Seabirds From The U.S. Atlantic Coast, Anna R. Robuck, Mark G. Cantwell, James P. Mccord, Lindsay M. Addison, Marisa Pfohl, Mark J. Strynar, Richard Mckinney, David R. Katz, David N. Wiley, Rainer Lohmann

Graduate School of Oceanography Faculty Publications

Per- and polyfluoroalkyl substances (PFAS) are anthropogenic, globally distributed chemicals. Legacy PFAS, including perfluorooctane sulfonate (PFOS), have been regularly detected in marine fauna but little is known about their current levels or the presence of novel PFAS in seabirds. We measured 36 emerging and legacy PFAS in livers from 31 juvenile seabirds from Massachusetts Bay, Narragansett Bay, and the Cape Fear River Estuary (CFRE), United States. PFOS was the major legacy perfluoroalkyl acid present, making up 58% of concentrations observed across all habitats (range: 11–280 ng/g). Novel PFAS were confirmed in chicks hatched downstream of a fluoropolymer production site in …

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Simultaneous Analytical Determination Of Methyl Salicylate And Thymol In Selected Malaysian Traditional Medicines, Muhammad Shahariz Mohamad Adzib Sep 2020

Simultaneous Analytical Determination Of Methyl Salicylate And Thymol In Selected Malaysian Traditional Medicines, Muhammad Shahariz Mohamad Adzib

Student Works (2020-2029)

Various topical formulations comprise of methyl salicylate and thymol due to their analgesic and anti-inflammatory properties. The huge demand has led traditional medicines being susceptible to adulteration with synthetic drugs or their analogues to enhance their efficacy and to minimise the cost of obtaining the limited natural substance. The objectives of this study are to analyse a suitable analytical method for simultaneous determination of methyl salicylate and thymol in selected Malaysian traditional medicines using High Performance Liquid Chromatography (HPLC) and to screen the selected Malaysian traditional medicines for possible methyl salicylate and thymol adulteration using the analytical method. Most literature …

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Practical Model For Improved Classification Of Trace Chemical Residues On Surfaces In Active Spectroscopic Measurements, Cara P. Murphy, John P. Kerekes, Derek A. Wood, Anish K. Goyal Sep 2020

Practical Model For Improved Classification Of Trace Chemical Residues On Surfaces In Active Spectroscopic Measurements, Cara P. Murphy, John P. Kerekes, Derek A. Wood, Anish K. Goyal

Articles

No abstract provided.

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Practical Model For Improved Classification Of Trace Chemical Residues On Surfaces In Active Spectroscopic Measurements, Cara P. Murphy, John Kerekes, Derek Wood, Anish Goyal Sep 2020

Practical Model For Improved Classification Of Trace Chemical Residues On Surfaces In Active Spectroscopic Measurements, Cara P. Murphy, John Kerekes, Derek Wood, Anish Goyal

Articles

Trace chemical detection and classification in stand-off reflection-based spectro- scopic data is challenging due to the variability of measured data and the lack of physics-based models that can accurately predict spectra. Most available models assume that the chemical takes the form of spherical particles or uniform thin films. A more realistic chemical presentation that could be encountered is that of a nonuniform chemical film that is deposited after evaporation of the solvent that contained the chemical. We present an improved signature model for this type of solid film. The proposed model, called sparse transfer matrix, includes a log-normal distribution of …

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The Rider (2020-09-07), Jacqueline Peraza Sep 2020

The Rider (2020-09-07), Jacqueline Peraza

The Rider Archives

Vol.6 No.3

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