scholarly journals New Light on Old Fingermarks: The Detection of Historic Latent Fingermarks on Old Paper Documents Using 1,2-Indanedione/zinc

2020 ◽  
Author(s):  
Jemmy T. Bouzin ◽  
Jason Merendino ◽  
Stephen M. Bleay ◽  
Georgina Sauzier ◽  
Simon W. Lewis
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Zinc Chloride ◽  
Preliminary Investigation ◽  
High Quality ◽  
Different Ages ◽  
Over Time ◽  
Paper Substrates

This study explores trends in the effectiveness of 1,2-indandione/zinc chloride (IND/Zn) for visualizing latent fingermarks on paper substrates of various ages. Preliminary investigation of contemporaneous documents showed that high quality fingermarks could be deposited through incidental handling, although smudging and overlapping were evident. IND/Zn was then applied to incidentally handled documents up to 80 years old and successfully developed potentially identifiable fingermarks, significantly increasing the established timescale for fingermark detection with amino acid sensitive reagents. The results indicate that IND/Zn remains effective over longer periods than has been previously demonstrated, although a comparison between documents of different ages suggest that progressive diffusion of the target amino acids occurs over time, affecting the proportion of potentially identifiable marks.The findings of this study reinforce the applicability of IND/Zn for the detection of historic latent fingermarks on old paper documents.

scholarly journals New Light on Old Fingermarks: The Detection of Historic Latent Fingermarks on Old Paper Documents Using 1,2-Indanedione/zinc

2020 ◽  
Author(s):  
Jemmy T. Bouzin ◽  
Jason Merendino ◽  
Stephen M. Bleay ◽  
Georgina Sauzier ◽  
Simon W. Lewis
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Zinc Chloride ◽  
Preliminary Investigation ◽  
High Quality ◽  
Different Ages ◽  
Over Time ◽  
Paper Substrates

This study explores trends in the effectiveness of 1,2-indandione/zinc chloride (IND/Zn) for visualizing latent fingermarks on paper substrates of various ages. Preliminary investigation of contemporaneous documents showed that high quality fingermarks could be deposited through incidental handling, although smudging and overlapping were evident. IND/Zn was then applied to incidentally handled documents up to 80 years old and successfully developed potentially identifiable fingermarks, significantly increasing the established timescale for fingermark detection with amino acid sensitive reagents. The results indicate that IND/Zn remains effective over longer periods than has been previously demonstrated, although a comparison between documents of different ages suggest that progressive diffusion of the target amino acids occurs over time, affecting the proportion of potentially identifiable marks.The findings of this study reinforce the applicability of IND/Zn for the detection of historic latent fingermarks on old paper documents.

scholarly journals High-Quality Draft Genome Sequence of Kallotenue papyrolyticum JKG1 T Reveals Broad Heterotrophic Capacity Focused on Carbohydrate and Amino Acid Metabolism

2015 ◽  
Vol 3 (6) ◽  
Author(s):  
Brian P. Hedlund ◽  
Senthil K. Murugapiran ◽  
Marcel Huntemann ◽  
Alicia Clum ◽  
Manoj Pillay ◽  
...  
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Genome Sequence ◽  
Amino Acid Metabolism ◽  
Acid Metabolism ◽  
Draft Genome ◽  
Draft Genome Sequence ◽  
High Quality ◽  
Encoding Genes

The draft genome of Kallotenue papyrolyticum JKG1 T , a member of the order Kallotenuales , class Chloroflexia , consists of 4,475,263 bp in 4 contigs and encodes 4,010 predicted genes, 49 tRNA-encoding genes, and 3 rRNA operons. The genome is consistent with a heterotrophic lifestyle including catabolism of polysaccharides and amino acids.

scholarly journals Leri: a web-server for identifying protein functional networks from evolutionary couplings

2020 ◽  
Author(s):  
Ngaam J. Cheung ◽  
Arun T. John Peter ◽  
Benoit Kornmann
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Protein Function ◽  
Structure Prediction ◽  
High Performance ◽  
Web Server ◽  
Functional Networks ◽  
Computational Results ◽  
High Quality ◽  
Recent Developments

ABSTRACTInformation on the co-evolution of amino acid pairs in a protein can be used for endeavors such as protein engineering, mutation design, and structure prediction. Here we report a method that captures significant determinants of proteins using estimated co-evolution information to identify networks of residues, termed “residue communities”, relevant to protein function. By taking advantage of recent developments in high-performance and parallel computing, we constructed a web-server, Leri, that identifies relevant residue communities to allow researchers to investigate how a protein evolves and folds for function(s). All the data of the computational results including high-quality images can be downloaded and presented for publication. This web-server, written in C++, is sufficiently rapid to enable the studies on proteins of up to 400 amino acids.

scholarly journals Study of amino acid composition of filling for extruded grain crops

2021 ◽  
pp. 90-94
Author(s):  
U. Ch. Сhomanov ◽  
G. E. Zhumalieva ◽  
M. Ch Tultabayev ◽  
G. S. Aktokalova ◽  
R. K. Kassimbek ◽  
...  
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Shelf Life ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Essential Amino Acids ◽  
The Body ◽  
High Quality ◽  
Grain Crops ◽  
Grain Products

In this paper, the amino acid composition of protein filling for extruded grain products is studied. According to research, essential amino acids make up more than 1/3 of all amino acids, which means that the protein filling is of high quality. The article considers covering the daily requirement of amino acids of the body with protein filling. It was found that the protein filling contains a rich amino acid composition, and allows you to get extruded grain products with a long shelf life.

scholarly journals Hemodialysis—Nutritional Flaws in Diagnosis and Prescriptions. Could Amino Acid Losses Be the Sharpest “Sword of Damocles”?

Nutrients ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1773 ◽  
Author(s):  
Piergiorgio Bolasco
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Hemodialysis Patients ◽  
Calorie Intake ◽  
Protein Energy Wasting ◽  
Slowing Down ◽  
Protein Energy ◽  
Determining Factor ◽  
Over Time

This review aims to highlight the strengths and weaknesses emerging from diagnostic evaluations and prescriptions in an intent to prevent progression over time of malnutrition and/or protein-energy wasting (PEW) in hemodialysis (HD) patients. In particular, indications of the most effective pathway to follow in diagnosing a state of malnutrition are provided based on a range of appropriate chemical-clinical, anthropometric and instrumental analyses and monitoring of the nutritional status of HD patients. Finally, based on the findings of recent studies, therapeutic options to be adopted for the purpose of preventing or slowing down malnutrition have been reviewed, with particular focus on protein-calorie intake, the role of oral and/or intravenous supplements and efficacy of some classes of amino acids. A new determining factor that may lead inexorably to PEW in hemodialysis patients is represented by severe amino acid loss during hemodialysis sessions, for which mandatory compensation should be introduced.

Stability of Disodium Sulfobenzylpenicillin in Large Volume Parenteral Solutions

1978 ◽  
Vol 12 (7) ◽  
pp. 418-423
Author(s):  
Hiroshi Fukuchi ◽  
Minoru Yoshida ◽  
Michio Kumagai ◽  
Teruaki Kitaura
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Thin Layer ◽  
Large Volume ◽  
Degradation Product ◽  
Degradation Products ◽  
Residual Rate ◽  
The Stability ◽  
Layer Chromatography ◽  
Over Time

The stability of disodium sulfobenzylpenicillin (SB-PC) in several large-volume parenteral solutions was studied. A study was also made of the influences of other additive drugs upon the stability of SB-PC in SB-PC IV fluid admixtures. Quantitative determinations were made by iodometry of the residual rate over time of SB-PC. The residual rate of SB-PC in 5-fluorouracil (5-FU injection)-10 percent glucose admixture was 67 percent after 24 hours at 25 °C, (77 °F) and in aminophylline (aminophylline injection J.P.)-10 percent glucose admixture it was 54 percent after 24 hours. It was found that the decomposition of SB-PC was due to amines which were added to these injections. In an admixture of amino acid and SB-PC, the residual rate of SB-PC decreased linearly with the increase in amino acid concentration. In the 12 kinds of amino acids used in this study, the greatest decrease was observed in the admixture with lysine, the residual rate being 76.7 percent. For the study of degradation products of SB-PC, thin layer chromatography was employed and a spot of the degradation product was detected at an Rf value of 0.2.

scholarly journals Qualitative Protein Hydrolyzed from Nerita undata in supralittoral rocks and mezolittoral zone of Hasa Cape using TLC

2021 ◽  
Vol 9 (2) ◽  
pp. 118-123
Author(s):  
Healthy Kainama ◽  
Hanoch J. Sohilait ◽  
Christian Jacob Souisa
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Essential Amino Acids ◽  
Coastal Communities ◽  
High Quality ◽  
Peptide Bonds ◽  
High Quality Protein ◽  
Kjeldahl Method ◽  
Acetic Acid Water ◽  
Layer Chromatography

Gastropods are the sources of protein for coastal communities in the Maluku islands. We conducted analysis quantitative and qualitative of protein in Nerita undata meat from Hasa Cape in Saparua Island. The percentage of protein was analyzed by the Kjeldahl method. Qualitative analysis began with breaking peptide bonds in protein to amino acid components by sulphuric acid and barium hydroxide hydrolyzed. We identified amino acid compounds by using thin-layer chromatography (TLC) in butanol-acetic acid-water (8:1:1, v/v) as eluent. The result showed that N. undata meat contains 11.15% of protein and twelve amino acid compounds. There are seven essential amino acids in N. undata meat from supralittoral rocks and mezolittoral zone of Hasa cape is a source of quality protein. Thus, this species can be considered as a source of high-quality protein.

Test strips for examining reactivity of fingerprints visualization methods on absorptive surfaces with amino acids

2015 ◽  
Vol 288 ◽  
pp. 104-107
Author(s):  
Tomasz Szczepański ◽  
◽  
Urszula Więckiewicz ◽  
Krzysztof Klemczak ◽  
◽  
...  
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Zinc Chloride ◽  
Fluorescence Emission ◽  
Routine Laboratory ◽  
Test Strips ◽  
Fluorescence Measurements ◽  
Acid Reaction ◽  
Acid Test ◽  
Amino Acid Concentrations

This article provides the results of research on the uniformity of amino acid test strips used with fluorescent DFO method. Ready to use amino acid test strips made of the absorptive material containing four reactive fields of exponentially decreasing amino acid concentrations, designed for DFO, ninhydrin, 1,2-indanedione methods were used in the study. The test strips were treated with DFO solution in order to measure the fluorescence emission level of DFO-amino acid reaction product for respective reaction fields. Based on the obtained results, the repeatability of emitted fluorescence measurements was observed, thus confirming the usability of test strips in DFO method verification of newly prepared reagents as well as the use of this method in routine laboratory work. Based on the findings, it should be assumed that test strips are also effective and suitable for verification of correctness of preparation of working solutions for the remaining amino acid based fingerprint visualization methods such as: ninhydrin, 1,2-indanedione, and 1,2-indanedione with zinc chloride.

scholarly journals Chemical compositions of elastins isolated from aortas and pulmonary tissues of humans of different ages

1972 ◽  
Vol 127 (1) ◽  
pp. 261-269 ◽  
Author(s):  
R. John ◽  
J. Thomas
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Cross Linking ◽  
Chemical Compositions ◽  
Amino Acid Compositions ◽  
Different Ages ◽  
Older Subjects ◽  
The Cross ◽  
Carbohydrate Contents

1. Elastins were isolated from the visceral pleuras and parenchymas of lungs of humans of different ages. 2. The elastin content of pleuras increased whereas that of parenchymas remained constant with increasing age. 3. The amino acid compositions and carbohydrate contents of elastins isolated from both pulmonary tissues changed in the same way with increasing age of the subjects. These changes were similar to those observed in elastins isolated from the aorta. 4. Similar glycoproteins were isolated from pleuras and aortas, and were more difficult to extract from the elastins of older subjects. Contamination with these glycoproteins was responsible for the changes in composition of elastin, as the age of the tissue from which it was extracted increased. 5. The amount of the cross-linking amino acids desmosine and isodesmosine was lower in elastins isolated from both aorta and pulmonary tissues of senile subjects than those from younger subjects.

Effects of intraperitoneal injections of DL-methionine on the voluntary intake and wool growth of sheep fed sole diets of hay, silage and pasture differing in digestibility

1976 ◽  
Vol 86 (1) ◽  
pp. 141-149 ◽  
Author(s):  
T. N. Barry
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Dry Matter ◽  
Dry Matter Intake ◽  
Amino Acid Supplementation ◽  
High Quality ◽  
Wool Growth ◽  
Methionine Supplementation ◽  
Ad Libitum ◽  
Voluntary Intake

SUMMARYPenned Romney wether sheep were fed ad libitum diets of untreated silage and hay made from the same pasture (Expt 1), untreated silage (Expt 2), and high quality fresh pasture (Expt 3). Voluntary intake and wool growth were measured. In each experiment half of the sheep were given intraperitoneal injections three times per week which supplied the equivalent of 1·03 g DL-methionine/day.Relative to silage in Expt 1, hay increased voluntary dry matter intake, depressed apparent nitrogen digestibility and increased wool growth. Methionine supplementation increased voluntary intake and wool growth with animals fed on hay or silage in Expt 1 and with those fed on silage in Expt 2, but had no effect on either variate with the diet of fresh pasture.Wool sulphur content, measured in Expts 2 and 3, was increased by methionine supplementation, and it was calculated that 34 and 15% respectively of the sulphur administered as methionine was recovered in the wool.The effects produced by methionine supplementation in this work are compared with those produced from different forms of post-ruminal amino acid supplementation in sheep fed a variety of diets. Factorial estimates of the requirements for sulphur of sheep and cattle in different physiological states have been calculated, and are discussed in relation to results of trials involving supplementation with sulphur-containing amino acids.

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