Academic literature on the topic 'Mold Max 60™'
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Journal articles on the topic "Mold Max 60™"
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Deliephan, Aiswariya, Janak Dhakal, Bhadriraju Subramanyam, and Charles G. Aldrich. "Use of Organic Acid Mixtures Containing 2-Hydroxy-4-(Methylthio) Butanoic Acid (HMTBa) to Mitigate Salmonella enterica, Shiga Toxin-Producing Escherichia coli (STEC) and Aspergillus flavus in Pet Food Kibbles." Animals 13, no. 5 (2023): 877. http://dx.doi.org/10.3390/ani13050877.
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Post-processing operations of extruded pet food kibbles involve coating the product with fats and flavorings. These processes increase the risk for cross-contamination with food-borne pathogens such as Salmonella and Shiga toxin-producing Escherichia coli (STEC), and mycotoxin-producing molds such as Aspergillus spp. after the thermal kill step. In this study, the antimicrobial effects of two types of organic acid mixtures containing 2-hydroxy-4-(methylthio) butanoic acid (HMTBa), Activate DA™ and Activate US WD-MAX™, against Salmonella enterica, STEC and Aspergillus flavus when used as a coating on pet food kibbles were evaluated. Using canola oil and dry dog digest as fat and flavor coatings, the efficacy of Activate DA (HMTBa + fumaric acid + benzoic acid) at 0%, 1% and 2%, and Activate US WD-MAX (HMTBa + lactic acid + phosphoric acid) at 0%, 0.5% and 1% was tested on kibbles inoculated with a cocktail of S. enterica serovars (Enteritidis, Heidelberg and Typhimurium) or Shiga toxin-producing E. coli (STEC) serovars (O121, and O26) at 37 °C for 0, 12, 24, 48, 72 h, 30 and 60 days. Similarly, their efficacy was tested against A. flavus at 25 °C for 0, 3, 7, 14, 21, 28 and 35 days. Activate DA at 2% and Activate US WD-MAX at 1% reduced Salmonella counts by ~3 logs after 12 h and 4–4.6 logs after 24 h. Similarly, STEC counts were reduced by ~2 logs and 3 logs after 12 h and 24 h, respectively. Levels of A. flavus did not vary up to 7 days, and afterwards started to decline by >2 logs in 14 days, and up to 3.8-log reduction in 28 days for Activate DA and Activate US WD-MAX at 2% and 1%, respectively. The results suggest that the use of these organic acid mixtures containing HMTBa during kibble coating may mitigate post-processing enteric pathogen and mold contamination in pet food kibbles, with Activate US WD-MAX being effective at a lower concentration (0.5–1%) compared to Activate DA.
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YOGI, RUANTO, SEPRIANTO DICKY, and ARNOLDI DWI. "PENGARUH PARAMETER PEMBUATAN OBJEK DARI BAHAN TIMAH(SN) METODE GRAVITY CASTING DENGAN CETAKAN SILICONE TERHADAP NILAI KEKERASAN." Machinery: Jurnal Teknologi Terapan 1, no. 1 (2020): 17–22. https://doi.org/10.5281/zenodo.4540888.
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Pada pengerajin timah pada umumnya masih menggunakan cara yang kurang efektif dalam proses pengecoran yaitu penggunaan jenis model yang terbuat dari logam yang menyulitkan dalam pembentukan variasi model, dan juga para pengrajin pun dalam pembuatan cetakan masih mengunakan cetakan pasir,logam,. Untuk menciptakan produk yang berkualitas dengan pengecoran menggunakan metode grafity casting maka dalam hal ini model akan dicetak menggunakan alat DLP 3D printer dengan bahan resin. Sehingga dapat menciptakan variasi model yang lebih detail lalu cetakan menggunakan silikon untuk membuat cetakan sehingga menciptakan cetakan yang mudah dibentuk terhadap variasi model yang detail. Faktor-faktor yang diselidiki adalah tekanan vakum cetakan dan media pendingin dengan respon kekerasan dari spesimen uji. Pada proses pengujian menggunakan alat uji kekerasan ALBERT GNHEM HORGEN dan Profil Proyektor PJ-A3000 Mitutoyo. Data hasil tes dianalisis menggunakan metode ANOVA dengan desain level faktorial tipe 2, desain 2 interaksi faktorial (2FI), dan replikasi 3 dimodelkan oleh perangkat lunak Design-Expert (Trial).
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He, Chao, Qian Li, Huaidong Xiao, et al. "Effects of Mixing Ratio and Lactic Acid Bacteria Preparation on the Quality of Whole-Plant Quinoa and Whole-Plant Corn or Stevia Powder Mixed Silage." Microorganisms 13, no. 1 (2025): 78. https://doi.org/10.3390/microorganisms13010078.
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Quinoa is the only single plant that can meet all the nutritional needs of human, and its potential for feed utilization has been continuously explored, becoming a prosperous industry for poverty alleviation. In order to further tap the feeding value of whole quinoa, develop quinoa as a feed substitute for conventional crops such as corn, and improve its comprehensive utilization rate, this experiment analyzed the silage quality and mycotoxin content of mixed silage of whole-plant quinoa (WPQ) with whole-plant corn (WPC) or stevia powder(SP) in different proportions, and further improved the silage quality of mixed silage by using two lactic acid bacteria preparations (Sila-Max and Sila-Mix). The quality, microbial population, and mycotoxin levels of quinoa and corn silage, as well as that of the mixed silage of quinoa and stevia, were evaluated using single-factor analysis of variance. The impact of various lactic acid bacteria preparations on the quality of whole-quinoa and whole-corn mixed silage was investigated through two-factor analysis of variance. WPQ and WPC were mixed at the ratio of 5:5 (QB5), 6:4 (QB6), 7:3 (QB7), 8:2 (QB8), 9:1 (QB9) and 10:0 (QB10). SP was mixed with WPQ at the supplemental levels of 0.2% (QB10S2), 0.4% (QB10S4), 0.6% (QB10S6), 0.8% (QB10S8) and 1.0% (QB10S10). After 60 days of silage, the silage indexes, the number of harmful microorganisms, and the mycotoxin levels were measured, to explore the appropriate ratio of mixed silage. The membership function analysis showed that the quality of mixed silage of WPQ with SP was better, and the optimal addition amount of SP was 0.6%. The results of Max and Mix on the quality improvement test of WPQ with WPC mixed silage showed that the two lactic acid bacteria formulations increased CP and AA content, and reduced NH3-N/TN; pH was significantly lower than the control group (p < 0.01), and LA was significantly higher than the control group (p < 0.01). The microbial count results showed that the addition of lactic acid bacteria preparation significantly reduced the number of molds and aerobic bacteria, and the effect of Mix was better than that of Max. When the mixing ratio was between QB7 and QB10, mold was not detected in the lactic-acid-bacteria preparation groups. Max and Mix significantly reduced the levels of mycotoxins, both of which were far below the range of feed safety testing, and 16S rRNA sequencing revealed that the silage microbiota varied with different mixing ratios and whether lactic acid bacteria preparations were used. Max and Mix increased the relative abundance of Firmicutes, with Mix having a more significant effect, especially in the QB6 (65.05%) and QB7 (63.61%) groups. The relative abundance of Lactobacillus was significantly higher than that of the control group (p < 0.05). The relative abundance of Enterobacteriaceae and Streptococcus were negatively and positively correlated with the addition level of quinoa, respectively. Comprehensive analysis showed that adding 0.6% SP to the WPQ and using Mix in mixed silage of WPQ and WPC with the proportion of WPQ no less than 70% had the best silage effect, and was more beneficial to animal health.
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Vu, Quang Duc. "Effect of contact blast loading on the plastic deformation forming ability of large steel pipes." EUREKA: Physics and Engineering, no. 4 (July 19, 2024): 124–32. http://dx.doi.org/10.21303/2461-4262.2024.003262.
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Plastic deformation forming with metal pipe blanks by contact blast loading inside pipes is an interesting moldless forming technique, also a complex and error-prone process. Some advantages are very characteristic of this forming technique such as no cost of mold, tooling and low energy consumption, no complicated control equipment compared to other forming techniques such as casting, rolling, tube hydrostatic forming, bending – welding. Up to now, the calculation and design of this forming technique mainly use some existing reference empirical formulas, so the experimental results are only suitable in the range of small pipe diameters, and still there are significant deviations for larger pipe diameters. In order to increase the predictability and accuracy of forming process by contact blast loading inside large pipes, this paper presents a study on the influence of the mass of highly explosive material – TNT to the forming ability of large steel pipes from API-5LX-42 mild steel materials by modern 3D numerical simulation – using Abaqus/Cae software. Four output criteria with maximum values are used to evaluate the efficiency of this forming process, including maximum diameter of the blast zone (Dmax£2D0), Von Mises stress (Smax£UTS), Hoop plastic strain component (PE22max£1), and Pipe wall thinning rate (eT-max£60 %). The results of this research on the plastic deformation forming process using numerical simulation can be used for the next experimental step to evaluate the difference between simulation and experiment, as well as use this data in the calculation and design of pipe products with circular or square cross-sections to save both time and money of trial and error before application in actual manufacturing
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Puello Yocum, B., and J. Lavik. "60-Year-Old Patient with Invasive Mold Infection Consequent to an Encounter with a Barnyard Animal." American Journal of Clinical Pathology 158, Supplement_1 (2022): S131—S132. http://dx.doi.org/10.1093/ajcp/aqac126.279.
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Abstract Introduction/Objective Lichtheimia and Scedosporium species are ubiquitous fungi associated with a range of clinical presentations. We report a complex soft tissue coinfection caused by Lichtheimia spp. and Scedosporium spp. following a puncture wound by a rooster spur. Methods/Case Report A 60-year-old immunosuppressed man with a history of heart transplant presented with a non-healing wound 2-months after sustaining a lower leg puncture secondary to a rooster spur. The patient was previously treated with Augmentin for presumed cellulitis without improvement. To characterize the ongoing disease process, the wound was sampled with tissue portions routed for both histopathologic review and culture. In short order, the biopsy demonstrated invasive hyaline pauciseptate fungal hyphae consistent with organisms of the Mucorales order. In congruence, culture rapidly revealed a mucoraceous mold, subsequently identified as a Lichtheimia spp. Thus, the patient was treated with liposomal amphotericin B. However, days later, a second fungus - a Scedosporium spp. - was isolated from the original specimen. Consequently, isavuconazonium sulfate therapy was added. Re-review of the initial biopsy enabled distinction of two populations of fungal hyphae plausibly representing both molds. Despite numerous debridements and optimal medical management, the patient was ultimately referred for amputation. Results (if a Case Study enter NA) NA. Conclusion When encountered in an immunocompromised host, providers understandably respond to an invasive mucoraceous mold with alarm followed by quick, decisive action. However, septate molds, such as the Scedosporium spp., can also be aggressive. Further, the presence of more than one invasive mold presents a treatment challenge as the mucormycetes may require surgery coupled with amphotericin B therapy; whereas, the a Scedosporium spp. may be wholly resistant to amphotericin B. This case illustrates the critical role that an alert pathologist plays in guiding management through integration of data from different diagnostic modalities. It also constitutes an emphatic reminder that an illness may be caused by more than one actionable, invasive fungus.
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Moh, Eun Ho, Kyo Shik Park, Jeong Woo Jo, and Myeong Hui Yu. "A Study on the Improvement of Safety Management by Improving the Production Quality of PC(Precast Concrete) : PC Slab Falling Accident in Construction of Logistics Warehouse." Forum of Public Safety and Culture 19 (November 30, 2022): 15–30. http://dx.doi.org/10.52902/kjsc.2022.19.15.
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On 16th of November 2021, the PC slab had been fallen out and dropped to approximately 10M downstairs slab during the PC slab concrete pouring work on the rooftop floor of new logistics warehouse construction in Hwaseoung, Gyeonggi-do, and this accident was mainly caused by the bending fracture of concrete since the weaker strength of the upper compressed concrete compared to the tensile strength of central lower parts failed to withstand the high stress of upper topping concrete pouring. For the investigation of root-cause for above mentioned accident, the design compressive strength had been tested by utilizing the core sampling(extracting) method for the PC slab which was fallen out while pouring topping concrete, and as a result, the average compressive strength of three(3) concrete specimens collected from the relevant member through the destructive test was observed as 21.7MPa (No.1 – 20.6MPa, No.2 – 18.1MPa, No.3 – 26.5 MPa) which is only 55% level of the design compressive strength of 40MPa. The main cause that the average compressive strength was observed at about 55% level of the design compressive strength of 40MPa is the failure to comply with the required standard/specification for steam curing during the PC production processing. The required conditions to be complied for the steam curing are 60±10℃(Max. 80℃ or less) of curing temperature, 20℃/h or less of temperature rise rate and shall be managed by the concrete maturity, however, it was reported as a result of investigating the PC manufacturer that the strength had not reached to the standard strength before the mold deformation due to the steam curing with low temperature condition at opened space. The logistics warehouses have been continuously requested to be expanded after COVID-19 Pandemic, and the demand of PC which has merit in logistics warehouse construction work has been rapidly increasing. As a result, the operation rate of PC manufacturers currently reaches the maximum production limit, instead, PCs have been indiscriminately produced at small workplaces which have not able to satisfy the design compressive strength, construction quality and safety requirements. In the current situation, the construction site and workers are exposed to the potential risk of falling accidents since any relevant law or regulation on non-securing quality requirements such as the compressive strength is not stipulated yet. For this reason, the PC products with secured quality requirements shall delivered and construction safety management shall be improved by implementation of PC Factory Certification System at the earliest. For the purpose of this study, the PC factory certification system should be introduced, the research method was selected based on PC drop accidents and domestic and international operational cases of each country's certification system.
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Singh, Swati, Hina Kausar Butt, Mayurika Subodhkumar Tyagi, Sivanesan Dhandayuthapani, and Priyanka Gulati. "Breaking the mold: Unveiling male breast cancer through a compelling case study." Santosh University Journal of Health Sciences 9, no. 2 (2023): 240–42. http://dx.doi.org/10.4103/sujhs.sujhs_65_23.
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ABSTRACT Breast cancer in men is rare, it represents <1% of all male cancers, it usually presents between the ages of 60 and 70 years with an age peak at 67 years. Unlike in women, where screening studies are performed, in men, it is usually diagnosed later, because the low incidence of this cancer in male patients and the absence of early signs and symptoms lead to a delayed search for medical attention. Even though more data is emerging about this disease, the poor level of awareness often results in late presentation and delayed diagnosis in our country. The present study reported the case of a 63-year-old man who presented in the outpatient department with a large breast lump and a short history of 2 months; he was diagnosed on fine-needle aspiration cytology with an invasive ductal carcinoma. The case is presented for the rarity and to discuss awareness, regarding early diagnosis, and proper management.
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Tiarsa, Ezra Rheinsky, Yandri Yandri, Tati Suhartati, Heri Satria, Bambang Irawan та Sutopo Hadi. "The Stability Improvement of Aspergillus fumigatus α-Amylase by Immobilization onto Chitin-Bentonite Hybrid". Biochemistry Research International 2022 (14 березня 2022): 1–9. http://dx.doi.org/10.1155/2022/5692438.
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Enzyme immobilization is a powerful method to improve the stability, reuse, and enzymatic properties of enzymes. The immobilization of the α-amylase enzyme from Aspergillus fumigatus on a chitin-bentonite (CB) hybrid has been studied to improve its stability. Therefore, this study aims to obtain the higher stability of α-amylase enzyme to reduce industrial costs. The procedures were performed as follows: production, isolation, partial purification, immobilization, and characterization of the free and immobilized enzymes. The CB hybrid was synthesized by bentonite, chitin, and glutaraldehyde as a cross-linker. The free enzyme was immobilized onto CB hybrid using 0.1 M phosphate buffer pH 7.5. The free and immobilized enzymes were characterized by optimum temperature, Michaelis constant (KM), maximum velocity V max , thermal inactivation rate constant (ki), half-life (t1/2), and transformation of free energy because of denaturation (ΔGi). The free enzyme has optimum temperature of 55°C, KM = 3.04 mg mL−1 substrate, V max = 10.90 μ molemL − 1 min − 1 , ki = 0.0171 min−1, t1/2 = 40.53 min, and ΔGi = 104.47 kJ mole−1. Meanwhile, the immobilized enzyme has optimum temperature of 60°C, KM = 11.57 mg mL−1 substrate, V max = 3.37 μ molemL − 1 min − 1 , ki = 0.0045 min−1, t1/2 = 154.00 min, and ΔGi = 108.17 kJ mole−1. After sixth cycle of reuse, the residual activity of the immobilized enzyme was 38%. The improvement in the stability of α-amylase immobilized on the CB hybrid based on the increase in half-life was four times of the free enzyme.
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Koch, James L., Marcin Horbowicz, and Ralph L. Obendorf. "Methanol, pectin and pectinesterase changes during soybean seed maturation." Seed Science Research 9, no. 4 (1999): 311–20. http://dx.doi.org/10.1017/s096025859900032x.
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AbstractMethanol accumulates in maturing seeds, correlating with preharvest deterioration. Since the source of methanol may be from pectin de-methylation, methanol, cell wall uronic acid, pectin methyl esterification, pectinesterase (PE; EC 3.1.1.11) activity, and neutral sugar composition and partitioning of cell wall polysaccharides were determined during soybean (Glycine max[L.] Merrill) seed development, maturation, and desiccationin planta. Axis cell wall polysaccharides were more easily solubilized, richer in uronic acid, rhamnose, and xylose, and less rich in galactose than cotyledon cell wall polysaccharides. Methanol accumulated to 9.7 μg per two cotyledons and 0.5 μg per axis; total methanol decreased to 3 μg per two cotyledons during loss of green color. Total uronic acid increased from 0.12 to 0.27 mg per axis and 0.9 to 4 mg per cotyledon between 24 and 50 days after flowering (DAF). After loss of green color, pectin methyl esterification in axes increased from 7 to 24 mole% between 50 and 60 DAF but decreased to 14 mole%by 62 DAF in latter stages of seed desiccation. In cotyledons, methyl esterification ranged from 25 to 40 mole% and was 31 mole% after desiccation. PE activity increased 100 fold in axes, including a 30-fold increase in activity after loss of green color at 46 DAF. Cotyledon PE activity was 40-fold higher than in axes at 24 DAF, declined 75% by 56 DAF, and then increased 5 fold during desiccation. Pectin methyl de-esterification by PE is sufficient to be the sole source for methanol accumulation in seed tissues during development and maturation.
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Alemany, Regina, Britta Sichelschmidt, Dagmar Meyer zu Heringdorf, Holger Lass, Chris J. van Koppen, and Karl H. Jakobs. "Stimulation of Sphingosine-1-phosphate Formation by the P2Y2 Receptor in HL-60 Cells: Ca2+ Requirement and Implication in Receptor-Mediated Ca2+ Mobilization, but Not MAP Kinase Activation." Molecular Pharmacology 58, no. 3 (2000): 491–97. http://dx.doi.org/10.1124/mol.58.3.491.
Full textBook chapters on the topic "Mold Max 60™"
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Bouzas Sabater, Marc, Josep Burch Rius, and David Vivó Codina. "Elements per al coneixement de la monetització de la vil·la romana del Collet (Calonge i Sant Antoni, Baix Empordà)." In Miscellany on the Rural World in the Roman Period. Documenta Universitaria, 2023. https://doi.org/10.33115/b/9788499846620_6.
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La vil·la romana del Collet està situada al litoral de l’extrem nord‑est de la península Ibèrica. Les seves primeres fases de la vil·la, des de finals del segle II aC fins els anys 60‑70 dC, estan molt vinculades a l’explotació vitivinícola. En aquells darrers anys va ser objecte d’una intensa reforma que es va perllongar fins al seu abandonament en el segle V. Tot i que des d’inicis del segle IV, el sector de la vil·la més pròxim al mar devia estar abandonat. En aquest article s’estudien les 27 monedes localitzades fins l’actualitat en aquesta vil·la amb l’objectiu de complementar la identificació de les seves fases.
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Bouzas Sabater, Marc, Josep Burch Rius, and David Vivó Codina. "Elements per al coneixement de la monetització de la vil·la romana del Collet (Calonge i Sant Antoni, Baix Empordà)." In Miscellany on the Rural World in the Roman Period. Documenta Universitaria, 2023. https://doi.org/10.33115/10.33115/b/9788499846620_6.
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La vil·la romana del Collet està situada al litoral de l’extrem nord‑est de la península Ibèrica. Les seves primeres fases de la vil·la, des de finals del segle II aC fins els anys 60‑70 dC, estan molt vinculades a l’explotació vitivinícola. En aquells darrers anys va ser objecte d’una intensa reforma que es va perllongar fins al seu abandonament en el segle V. Tot i que des d’inicis del segle IV, el sector de la vil·la més pròxim al mar devia estar abandonat. En aquest article s’estudien les 27 monedes localitzades fins l’actualitat en aquesta vil·la amb l’objectiu de complementar la identificació de les seves fases.
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Burke, Rebecca, and Sriram Yennurajalingam. "Sleep Disturbance in Palliative Care." In Hospice and Palliative Medicine and Supportive Care Flashcards. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190633066.003.0009.
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Sleep disturbance is a persistent source of suffering in palliative care patients. Symptoms such as difficulty falling asleep, staying asleep, early awakening, or nonrestorative sleep are all indicative of sleep disorders. Poor sleep can have consequential effects on perception of pain, fatigue, mood, and quality of life. It is not only a prevalent symptom in the primary care population but also may in fact affect more than 60% of the palliative care population. In addition to the complexities of treatment, insomnia often serves as a red herring to alarm physicians of underlying conditions. Therefore, it is essential that palliative care physicians maintain a high index of suspicion for such confounding conditions as restless leg syndrome, sleep apnea, and delirium. This chapter highlights the intricacies of sleep disturbance and focuses on the most common patient presentations.
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Kamala, B., J. Ranjani, K. R. Saradha, K. S. Mahanaga Pooja, and N. Priyadharshini. "MENTAL DEPRESSION DISORDER PREDICTION USING MACHINE LEARNING APPROACH." In Futuristic Trends in Computing Technologies and Data Sciences Volume 3 Book 5. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bact5p2ch2.
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Depression is a medical disorder that disturbs the positive thinking of a person, how they feel and act. It disturbs the peace of an individual and leads the individual to physical and emotional problems which in turn affect their health. A depressive person develops aversion to living and is prone to suicide in most cases. It is observed that depression is most likely to appear during the late teens to mid - 20’s and women are more prone to depression than men. The reasons for depression may be many but one of the most significant one is the usage of social media. According to a study given by WHO it is estimated that depression affects 3.8 % of total population which includes 5.0 % among adults and 5.7 % among people above 60 years [1]. There has been tremendous increase in using Machine Learning (ML) for medical diagnosis. Most of the prediction models are based on imaging. This study aims to deploy a Machine Learning (ML) technique to measure DTI MRI scans of mood affected and non – affected individuals.[11] The Process is done using supervised methods of machine learning and support vector machine algorithm is used. This helps us in choosing the algorithm that provides the best accuracy. A large dataset is trained and classifiers are tested to distinguish affected and non – affected individuals based on the DTI MRI scans produced
Conference papers on the topic "Mold Max 60™"
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Johnson, M. L., and M. B. Tomson. "Ferrous Carbonate Precipitation Kinetics and Its Impact CO2 Corrosion." In CORROSION 1991. NACE International, 1991. https://doi.org/10.5006/c1991-91268.
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Abstract Recent evidence indicates that ferrous carbonate (FeCO3, siderite) plays a critical role in forming corrosion resistant scale. The temperature dependent precipitation kinetics of ferrous carbonate were studied using a powerful new "temperature ramped" approach. The activation energy calculated using a second order precipitation model (123 kJ/mol) qualitatively indicates that precipitation was controlled by surface reaction rate over the temperature interval studied. At low temperatures (&lt;60 C), precipitation is expected to progress more slowly than corrosion reactions. At elevated temperatures (&gt;175 C), transport limited ferrous carbonate deposition should be limited by the corrosion reaction. Corroding surfaces may be immediately passivated by FeCO3 precipitation at high temperature. At intermediate temperatures, ferrous carbonate may drive the corrosion reaction by removing iron from solution at approximately the same rate as it is provided by corrosion. The techniques developed in this research could easily be adapted for use with a number of other reduced metal systems.
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Hua, Fred, Jeff Sarver, John Jevec, and Gerald Gordon. "General Corrosion Studies of Candidate Container Materials in Environments Relevant to Nuclear Waste Repository." In CORROSION 2002. NACE International, 2002. https://doi.org/10.5006/c2002-02530.
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Abstract Alloy 22 (UNS N06022) and Ti Grade 7 (UNS R52400) have been proposed as the corrosion resistant materials for fabricating the waste package outer barrier and the drip shield, respectively, for the proposed nuclear waste repository at the Yucca Mountain Project. In this work, the general corrosion behavior of welded and annealed Alloy 22 and Ti Grade 7 in BSW-12 environments from 60° to 105°C was studied by simple immersion test for four weeks and eight weeks. The corrosion rate for Alloy 22 was found to be 0.003 mpy at 60°C and 0.012 mpy at 105°C (0.075 and 0.30 microns/year) and 0.008 mpy at 60°C to 0.026 mpy at 105°C (0.2 and 0.65 microns/year) for Ti Grade 7. The corrosion of Ti Grade 7 and Alloy 22 is discussed in terms of the corrosion rates as functions of temperature and exposure time and the correlation between the corrosion behavior and surface morphology. For Ti Grade 7, the imperfections (precipitates, inclusions, stringers, pores etc.) inherited from materials processing may serve as the sites of preferential dissolution or “traps” for corrosion products. In case of Alloy 22, the existence of graphite particles (or carbides) did not seem to deteriorate the excellent corrosion resistance of both annealed and welded materials. The apparent activation energies for Ti Grade 7 and Alloy 22 in BSW-12 environment were found to be approximately 22.4 - 23.5 KJmol-1 and 24.9 - 26.8 KJ mol-1, respectively. There was no obvious difference between the annealed and welded materials.
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Crolet, J. L., and M. R. Bonis. "Algorithm of the Protectiveness of Corrosion Layers 2 - Protectiveness Mechanisms and H2S Corrosion Prediction." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10365.
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Abstract The predictions of the so called CO2 or sweet corrosion and the so called H2S or sour corrosion are questions raised and still pending for some 60 years. A reliable prediction actually requires to understand when high or low corrosion rates are encountered in E&P operations (field data), how they can occur (comprehension of the various mechanisms ruling the corrosion layer protectiveness), and finally why they do occur (link between data and mechanisms). So far, however, and despite long lasting researches, these three aspects had always been studied separately. In Part 1, the specific chronology of the CO2 and H2S themes was reminded, and the concept of corrosion layer protectiveness refined, especially in the presence of two acid gases with iron solubility values as different as for FeCO3 and the various iron sulfides. The why of the CO2 corrosion prediction was also made fully explicit. This field based prediction tool was indeed well known for some 25 years, but it remained partly unexplained. Therefore, the additional explanations of Part 1 not only support it, but also enable a much more simple formulation. The present paper is aimed at doing the same for H2S corrosion, explaining the why of H2S corrosion, from the recently gathered field experience. It also refines the previous protectiveness mechanisms in sour media, especially through an in-depth analysis of 50 years experience in the production of the Lacq field in France (considered in the early 50's as a giant field of deep sour gas). This analysis extends from the very beginning of early production until the final exhaustion, and it emphasizes the never yet considered role of the isothermal decompression of reservoir water, as well as the inevitable trapping of water slugs at the bottom of HP gas wells. It also describes and explains a new type of profuse and non protective corrosion layer. It was named "calcic" (Ca) because its structure is made of both CaCO3 and FeS, and in H2S corrosion, it may form in any CaCl2 brine saturated in CaCO3. Despite huge PH2S in wells, the perfect solubility of dissolved iron within such layers is due to the immediate removal of any cathodic alkalization and any sulfide ion by CaCO3 precipitation. This new Ca layer is to be added to the former non protective insoluble anionic layers (IA), in which the internal iron solubility is due to a local shortage in either H2S alone (IA1) or both H2S and CO2 (IA2). The field data base presented in 2009 is also revisited in the light of this new information. Especially, it is shown that the well data base has still to be complemented, but in a mechanism minded way, i.e. by keeping in mind the background of these three non protective layers specific to H2S corrosion. Similarly, the data base on sour wells shall start from the very first minute traces of H2S in the acid gas mix, since regarding mechanisms, the so called "CO2 fields with H2S traces" are no longer relevant to a prediction by the previous algorithm of Part 1, but by the present Part 2, as "sour fields with minute H2S mole fractions". Altogether, it already appears that sour oil wells are never corrosive at least above 3 % H2S in the acid gas mix. The same is true for gas wells with an active aquifer, i.e. producing their reservoir water in the same way as oil wells, and as long as depletion will not completely alter the raw petroleum data given in the present field data base. Conversely, the bottomhole of HP gas wells above 450 bar with no active aquifer will soon or later pass through a corrosive period, due to the presence of trapped water slugs, whereas the condensing zone at the top will never be corrosive. Naturally, more field data are still necessary for refining the thresholds, but the present algorithm can already be used for predicting sour weight loss corrosion in a great many wells. It is also worth noting that the present Part 1 and Part 2 can be illustrated by a common logigram of the downhole "weak acid corrosion".
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Viviani, Cristiane, Karen Jardim, Jonatas Borges, et al. "IMPACTS OF COMPUTERIZED COGNITIVE TRAINING FOR OLDER ADULTS IN A COVID-19 PANDEMIC CONTEXT." In XIII Meeting of Researchers on Alzheimer's Disease and Related Disorders. Zeppelini Editorial e Comunicação, 2021. http://dx.doi.org/10.5327/1980-5764.rpda103.
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Background: Healthy aging it is possible to compensate for normative changes in cognitive performance, such as during digital learning, in which processes can benefit the global cognition and mood of healthy older adults. Objective: To verify the impacts of computerized cognitive training through an online platform, on mood, frequency of forgetfulness, memory complaints and quality of life of active older adults. Methods: 66 healthy elderly people were invited and divided into two groups, training group (n=32) and control group (n=34). Protocol: a sociodemographic questionnaire, the Memory Complaint Questionnaire (MAC-Q), a MAC-Nair forgetfulness frequency scale, the Geriatric Depression Scale (GDS-15), the Geriatric Anxiety Inventory (GAI), and a questionnaire of Quality of Life Assessment Control, Autonomy, Selfrealization and Pleasure (CASP-19). Results: Elderly aged 60 to 92 years, who attended higher education (39.39%) and postgraduate education (42.42%). Participants in the training group had a reduction in the MAC-Q, MAC-Nair and GAI scores, post-cognitive intervention, and the deltas of the scores (Post – Pre). Additionally, there were significant differences between groups, in the total quality of life scale - CASP 19 - in the posttest. Conclusion: That participating in a computerized cognitive intervention made it possible to reduce memory complaints, reduce the frequency of forgetfulness, reduce anxiety symptoms and improve self-reported quality of life.
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Oliveira, Rafael Arantes, Aline Mansueto Mourão, Aline Silva de Miranda, et al. "Cognitive impairment and mood disorder in the subacute phase of Ischemic Stroke." In XIII Congresso Paulista de Neurologia. Zeppelini Editorial e Comunicação, 2021. http://dx.doi.org/10.5327/1516-3180.657.
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Background: Ischemic strokes (IS) patients usually present cognitive deficits and psychiatric disorders. Studies describe this coexistence in the chronic phase, although alterations may relate with acute damage to emotion and cognition circuits Objectives: Assess cognitive and psychiatric symptoms during the subacute phase of IS. Design and setting: A prospective study, screening patients admitted in the Stroke Unit of Hospital Municipal Odilon Behrens, in Belo Horizonte, Minas Gerais, Brazil. Methods: Adults with acute IS and healthy controls were submitted to neuropsychological tests between 30 and 60 days after the event. Incidental, immediate and working memory, learning, late recall, recognition, phonemic verbal fluency, attention and facial emotion recognition were evaluated. Results: Eighteen patients were evaluated in the subacute phase, and twenty-one participants composed the control group, showing no socioeconomic differences between them. There was significant difference in immediate memory (p <0,01), late recall (p<0,05) and recognition (p<0,03) tests from the Brief Cognitive Screening Battery, and in the depression subscale from Hospital Anxiety and Depression Scale (p <0,04). Although there was no significant difference in Facial Emotion Recognition Test (p=0,745), the expression of sadness positively correlated with levels of anxiety (rho=0,587, p<0,05) and depression (rho=0,598, p<0,01), while the expression of fear negatively correlated with depressive symptoms (rho=0,481, p<0,05). Conclusion: Cognitive deficits and psychiatric symptoms in the subacute phase of IS are probably associated with memory impairments. Furthermore, depression and anxiety symptoms may influence the emotion recognition.
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Bhowmick, Sankha, Bharat D. Nath, John D. Biggers, and Mehmet Toner. "Thermostability Studies of Desiccated Murine Spermatozoa Nuclear DNA to Predict the Beneficial Effect of Trehalose in Long Term Storage." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33684.
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Long term preservation of mouse sperm in a desiccated state using sugars like trehalose may offer attractive economic benefits in the management of rapidly increasing transgenic mouse strains. The goal of the current study was to evaluate the protective effect of intracellular trehalose on sperm nucleus by predicting the long-term nuclear degradation kinetics of desiccated spermatozoa using an Arrhenius model whose parameters are obtained from high temperature-short time storage studies. B6D2F1 sperm isolated in an EGTA supplemented tris-HCl buffer (with or without 0.5M intracellular trehalose) were convectively dried with inert nitrogen gas in a controlled manner to moisture content &gt;5%. The samples were then vacuum packed and stored at 22, 37, 45, 60 and 90°C for 1, 3 or 7 days. Following rehydration, the sperm sample was assayed for DNA damage using the sperm chromatin structure assay (SCSA). Results indicate significantly (p&gt;0.05) lower DNA degradation for cells dried with intracellular trehalose at 45, 60 and 90°C for 1, 3 or 7 days compared to cells dried without trehalose. Based on a 10% increase in the index of injury, the calculated activation energy and frequency factors were 10.33 kcal/mole and 5.4×105 hr−1 respectively for cells dried in EGTA solution only. The corresponding numbers for cells dried in EGTA solution supplemented with 0.5M trehalose were 5.7 kcal/mole and 43.73 hr−1. Based on these parameters the time required for 10% DNA degradation are 279 and 759 hours for samples desiccated in plain EGTA vs. trehalose supplemented EGTA. These results indicate the beneficial effect of intracellular trehalose for the long-term storage of desiccated sperm.
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Koksalan, T., R. Kumar, E. Omara, et al. "Hydrogen Discovery in Abu Dhabi, UAE? A Geochemical Journey to Decipher the Source of 60 Mole% Hydrogen and in an Annulus-B of an Oil Producer Well." In ADIPEC. SPE, 2024. http://dx.doi.org/10.2118/222509-ms.
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Abstract Hydrogen, the lightest and most prevalent element in the cosmos, has attracted notable interest as a possible resource beneath the Earth's surface. Being a pervasive and vital component of the earth's crust, making up about 0.5% of the earth's mass, hydrogen is integral to a variety of geological activities like hydrothermal events, diagenesis, and metamorphism. Its existence in geological structures, especially within the circular spaces of wells, raises compelling debates regarding its origins, pathways, and concentrations. Investigating subsurface hydrogen necessitates an interdisciplinary strategy that entails geochemical examinations, geophysical explorations, and geological projections to demystify its movements and reactions. Prospective origins of endogenic hydrogen may include biological activity, interactions between water and rocks, volcanic activity, sedimentary environments, and the microbial breakdown of organic compounds, with each source imparting distinct geochemical traces. The exploration of hydrogen in the subsurface involves a multidisciplinary approach, combining geochemical analysis, geophysical surveying, and geological modeling to unravel the complexities of its behavior. Its presence within geological formations, particularly in the annular spaces of wells, poses intriguing questions as well as necessitates proper understanding to mitigate any potential danger or contamination risks associated with its migration and potential impact on drilling operations and well integrity. 60 mole% "Hydrogen", 39.7 mole% "Nitrogen" and "Methane" in traceable amounts has been observed in an annulus-B of a well in Abu Dhabi, UAE. Comprehensive geochemical characterization that included isotope and noble gas analysis was performed on produced gas, annular space gas and produced water samples collected from the well with the objective to determine the origin of high concentrations of hydrogen and nitrogen accumulating in the annular space. Geochemical analysis results indicate that radiolysis in basement rocks might seem a plausible source of the hydrogen in the annulus-B gas because both the hydrogen and nitrogen isotope data are consistent with a crustal source. However, this is a very speculative idea because the hydrogen generation process in basement rocks is very slow and the H2 would require a highly efficient and direct migration fairway directly to the annulus-B space. Hydrogen is not found in the reservoir gases produced from the well or in any of the other wells producing in the field. Furthermore, the noble gas results demonstrate that migration from deeper basement sources did not occur while significant degassing from water did. The data suggest that hydrogen generation in the Annulus-B space is operational and related to a problem with the cathode protection system in the well. Cathodic protection systems are considered to be the principal source of hydrogen in the annuli of water and oil/gas wells. Also, the high nitrogen concentration (39.7 mole%) in the annulus-B gas is problematic. Two possible sources for this N2, based on the N isotope value of +10.1‰, are denitrification and ammonium released from clays by brine interaction. Brown (2019) considers the latter as the only significant source for gases with nitrogen heavier than 7‰, but then he does report denitrification N2 with ẟ15N values in the 3 to 30‰ range. A denitrification source would implicate microbial processes and the N2 would be associated with microbial CH4. There is only a trace of methane in this gas (0.055 mole%) along with wisps of C2+. The 3He/4He ratio (R/Ra = 0.0354) clearly indicates crustal gas. An ammonium source is the most likely interpretation. It is independent of thermal maturity and the process is active where brine interacts with clays containing ammonium. Nitrogen is a common and often major component of evaporite deposit gases (Warren, 2016). The annulus-B nitrogen might be associated with Rus Formation evaporites or any other evaporites that exist in that area. In light of the results, we conclude by recommending that future research prioritize the evaluation of the wells cathode protection system integrity, as well as a comprehensive analysis of the produced gases to identify potential microbial activity, thermal maturity of hydrocarbons, and relationships between methane, hydrogen, and produced water. A thorough gas geochemistry study of the producing wells in the field should also be conducted to establish a baseline for fugitive nitrogen and hydrogen investigations. Additionally, collecting annulus-B water samples and analyzing the carbon isotope ratio of dissolved methane could provide valuable insights. Finally, a detailed evaluation of geological and geophysical data is necessary to constrain plausible sources and migration pathways of N2 and H2
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Abdulhameed, Isam M., and Nese Yaman. "INNOVATIVE INDEX FOR OPTIMIZING USING SALINE WATER IN IRRIGATION." In 12. JEEP INTERNATIONAL SCIENTIFIC AGRIBUSINESS CONFERENCE, MAK 2025 – KOPAONIK. Association science and business center WORLD; Institute for plant protection and environmen, 2025. https://doi.org/10.46793/mak2025.047a.
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According to the climate change in arid and semi-arid regions, saline water will be used in irrigation to mitigate the water gap between available water resources and the water demand. Using saline water to expand the irrigated area was followed by decreasing the crop yield due to osmotic potential, so an optimal indicator must be prepared to optimize the use of saline water. As climate changes effects water quantity and quality, the aim of this study is to mitigate the climate effects on water by improving the mathematical models and computer programs that are constructed to optimize the use of saline water in irrigation. This paper proposes an innovative indicator depending on the use of two water resources, river high quality water (1dS/m), and saline drainage water (6dS/m). The relation between Total Dissolved Salts (TDS) and Electrical Conductivity (EC), in saline drainage water is derived from field data of 400 samples taken during 2 years from the Main Outfall Drain (MOD) in Iraq. This paper proposes an innovative indicator depending on the use of two water resources, river high quality water (1dS/m), and saline drainage water (6dS/m). The relation between Total Dissolved Salts (TDS) and Electrical Conductivity (EC), in saline drainage water is derived from field data of 400 samples taken during 2 years from the Main Outfall Drain (MOD) in Iraq. The study concluded that there is a nonlinear relation between TDS and EC for saline water. The Crop Productivity Index (CPI) is proposed in this study and defined as a ratio of the volume of fresh water saved according to the use of saline water to the yield losses due to salinity effects. As this ratio is a benefit-cost ratio, its value must be greater than 1, in this study, the CPI critical value is 1.1. CPI depends on the water salinity and the crop tolerance to salinity, the maximum CPI value for 40 plants selected in this study is 6.43 for barely, (the highest field crop tolerance), while the lowest CPI is 0.4 for bean, (sensitive crop tolerance). The CPI values of many sensitive crops are less than the critical value, that means the irrigation of these crops by saline water is uneconomical financially insufficient. CPI recommends that the relative yield of any crop irrigated by saline water must be more than 60% to optimize the saline water use.
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Kurfess, Rebecca, Rangasayee Kannan, Thomas Feldhausen, Kyle Saleeby, A. John Hart, and David Hardt. "Towards Directed Energy Deposition of Metals Using Polymer-Based Supports: Hardness of 316L Stainless Steel Deposited on Carbon-Fiber-Reinforced ABS." In ASME 2022 17th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/msec2022-85562.
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Abstract Directed energy deposition (DED) is increasingly considered for manufacturing aerospace components and mold tooling with internal cooling channels, and for repair applications, but the design space of DED is limited: steep overhangs and bridge geometries are difficult or impossible to manufacture because support structures must be rigid and monolithic. Dissimilar metals may be used as supports, but these have proven difficult to manufacture and remove. Polymer supports in DED could provide a lower-cost, easily removable alternative, but the suitability of polymer substrates for DED components has not been explored. Crucial to the viability of this concept is understanding the thermal and mechanical stability of metal deposition onto polymers, and the properties of the solidified metal. Here, the deposition of 316L stainless steel onto carbon-fiber-reinforced ABS is investigated. Solid, box-shaped structures were manufactured with different inter-layer cooling times to study the interface between the metal and polymer composite and to determine the effect on the metal of the formation of carbonaceous polymer char generated during the DED process. Micro-hardness measurements across components with varying inter-layer cooling times were critically analyzed and correlated to the underlying structural changes in 316L at the interface. Due to the infiltration of char, the hardness of the metal directly adjacent to the polymer composite substrate was over 60% greater than the expected hardness value of deposited 316L stainless steel in the component with no interlayer cooling time.
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Araújo, Gustavo Silva de, Cleidilaine Ramos de Oliveira, Rayssa Gomes Santos Palmeira, et al. "Epidemiological profile of work-related mental disorders in Paraíba from 2015-2023." In V Seven International Multidisciplinary Congress. Seven Congress, 2024. http://dx.doi.org/10.56238/sevenvmulti2024-135.
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Since the 1990s, the increase in work-related psychiatric complaints in Brazil, including in Paraíba-PB, highlights the relationship between work and illness. Data were collected on work-related mental disorders in Paraíba. This study aims to provide a comprehensive epidemiological analysis of work-related mental disorders in Paraíba, seeking to identify trends and risk factors. Using data from the IT Department of SUS-DATASUS (2015-2023), an ecological study was adopted to evaluate aspects such as age group, race, sex, occupation, diagnosis, evolution, issuance of Work Accident Report (CAT) and absence due to wear. The analysis reveals significant trends: the most affected age group is 40-60 years old (50.24%), with an increase among workers aged 20-39 years old (175.86%). Predominance of cases in mixed race (51.86%), with an increase of 1016.67%. Higher prevalence in women (77.87%), with 2.26 times more absences (69.37%). Neurotic and mood disorders were the most common (87%), progressing to temporary disability in 84% of cases. There was an increase in the issuance of CAT (215.38%), but 54.44% were not notified. Elementary school teachers were the most affected (27.97%). The increase in notifications among brown individuals may be associated with the growing recognition and acceptance of racial self-declaration. Female predominance reiterates the social overload of gender, resulting in physical and mental exhaustion. Furthermore, the prevalence of mood disorders in workers with multiple assignments and low pay suggests a possible relationship with continuous exposure to specific stressors. The urgency of interventions to promote the mental health of workers, especially women and mixed race, is highlighted. The lack of psychological support can lead to temporary or permanent disabilities. Multidisciplinary actions are essential to preserve mental health and improve the quality of life in the workplace in Paraíba.
Reports on the topic "Mold Max 60™"
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Droby, Samir, Michael Wisniewski, Ron Porat, and Dumitru Macarisin. Role of Reactive Oxygen Species (ROS) in Tritrophic Interactions in Postharvest Biocontrol Systems. United States Department of Agriculture, 2012. http://dx.doi.org/10.32747/2012.7594390.bard.
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To elucidate the role of ROS in the tri-trophic interactions in postharvest biocontrol systems a detailed molecular and biochemical investigation was undertaken. The application of the yeast biocontrol agent Metschnikowia fructicola, microarray analysis was performed on grapefruit surface wounds using an Affymetrix Citrus GeneChip. the data indicated that 1007 putative unigenes showed significant expression changes following wounding and yeast application relative to wounded controls. The expression of the genes encoding Respiratory burst oxidase (Rbo), mitogen-activated protein kinase (MAPK) and mitogen-activated protein kinase kinase (MAPKK), G-proteins, chitinase (CHI), phenylalanine ammonia-lyase (PAL), chalcone synthase (CHS) and 4-coumarate-CoA ligase (4CL). In contrast, three genes, peroxidase (POD), superoxide dismutase (SOD) and catalase (CAT), were down-regulated in grapefruit peel tissue treated with yeast cells. The yeast antagonists, Metschnikowia fructicola (strain 277) and Candida oleophila (strain 182) generate relatively high levels of super oxide anion (O2−) following its interaction with wounded fruit surface. Using laser scanning confocal microscopy we observed that the application of M. fructicola and C. oleophila into citrus and apple fruit wounds correlated with an increase in H2O2 accumulation in host tissue. The present data, together with our earlier discovery of the importance of H₂O₂ production in the defense response of citrus flavedo to postharvest pathogens, indicate that the yeast-induced oxidative response in fruit exocarp may be associated with the ability of specific yeast species to serve as biocontrol agents for the management of postharvest diseases. Effect of ROS on yeast cells was also studied. Pretreatment of the yeast, Candida oleophila, with 5 mM H₂O₂ for 30 min (sublethal) increased yeast tolerance to subsequent lethal levels of oxidative stress (50 mM H₂O₂), high temperature (40 °C), and low pH (pH 4). Suppression subtractive hybridization analysis was used to identify genes expressed in yeast in response to sublethal oxidative stress. Transcript levels were confirmed using semi quantitative reverse transcription-PCR. Seven antioxidant genes were up regulated. Pretreatment of the yeast antagonist Candida oleophila with glycine betaine (GB) increases oxidative stress tolerance in the microenvironment of apple wounds. ROS production is greater when yeast antagonists used as biocontrol agents are applied in the wounds. Compared to untreated control yeast cells, GB-treated cells recovered from the oxidative stress environment of apple wounds exhibited less accumulation of ROS and lower levels of oxidative damage to cellular proteins and lipids. Additionally, GB-treated yeast exhibited greater biocontrol activity against Penicillium expansum and Botrytis cinerea, and faster growth in wounds of apple fruits compared to untreated yeast. The expression of major antioxidant genes, including peroxisomal catalase, peroxiredoxin TSA1, and glutathione peroxidase was elevated in the yeast by GB treatment. A mild heat shock (HS) pretreatment (30 min at 40 1C) improved the tolerance of M. fructicola to subsequent high temperature (45 1C, 20–30 min) and oxidative stress (0.4 mol-¹) hydrogen peroxide, 20–60 min). HS-treated yeast cells showed less accumulation of reactive oxygen species (ROS) than non-treated cells in response to both stresses. Additionally, HS-treated yeast exhibited significantly greater (P≥0.0001) biocontrol activity against Penicillium expansum and a significantly faster (Po0.0001) growth rate in wounds of apple fruits stored at 25 1C compared with the performance of untreated yeast cells. Transcription of a trehalose-6-phosphate synthase gene (TPS1) was up regulated in response to HS and trehalose content also increased.