Comparison the effects of nitric oxide and spermidin pretreatment on alleviation of salt stress in chamomile plant (Matricaria recutita L.)

Salt stress is an important environmental stress that produces reactive oxygen species in plants and causes oxidative injuries. In this investigation, salt stress reduced the shoot and root length, while increased the content of malondealdehyde, Hydrogen peroxide, and the activity of Ascorbate peroxidase andguaiacol peroxidase. Pretreatment of chamomile plants under salt stress with sodium nitroprussideand Spermidin caused enhancement of growth parameters and reduction of malondealdehyde and Hydrogen peroxide content. Pretreatment of plants with sodium nitroprusside remarkably increased Ascorbate peroxidase activity, while Spermidin pre-treatment significantly increased guaiacol peroxidase activity. Application of sodium nitroprusside or Spermidin with Methylene blue which is known to block cyclic guanosine monophosphate signaling pathway, reduced the protective effects of sodium nitroprussideand Spermidin in plants under salinity condition. The result of this study indicated that Methylene blue could partially and entirely abolish the protective effect of Nitric oxide on some physiological parameter. Methylene blue also has could reduce the alleviation effect of Spermidin on some of parameters in chamomile plant under salt stress, so with comparing the results of this study it seems that Spermidin probably acts through Nitric oxide pathway, but the use of 2-4- carboxyphenyl- 4,4,5,5- tetramethyl-imidazoline-1-oxyl-3-oxide is better to prove

It\u27s Not a Fad: Incorporating Mobile Devices Into the Classroom

According to a 2013 survey, about 40% of college students have used tablets for coursework and two-thirds have used a smartphone. Students also report that they would like to use their mobile devices more often in their courses. This session will provide the opportunity to learn about strategies for incorporating the use of mobile devices in the classroom, including WU-texter, an application developed and implemented by Ron in a computer science course.https://openscholarship.wustl.edu/lib_present/1012/thumbnail.jp

Pengaruh Sistem Cache Berbasis In-memory pada Aplikasi Web untuk Meningkatkan Kinerja Akses Data

Dalam era digital, jumlah pengguna internet terus meningkat, dengan penetrasi internet di Indonesia mencapai 79,5% pada tahun 2024. Seiring dengan meningkatnya jumlah pengguna, kinerja website menjadi faktor utama dalam memberikan pengalaman yang optimal. Waktu respon yang lambat dan beban server yang tinggi dapat menyebabkan penurunan kepuasan pengguna. Salah satu solusi yang dapat diterapkan untuk meningkatkan kinerja aplikasi web adalah sistem caching, yang memungkinkan penyimpanan sementara data untuk mempercepat akses dan mengurangi beban server. Database relasional (RDBMS) masih menjadi pilihan utama dalam penyimpanan data, tetapi memiliki keterbatasan dalam kecepatan akses karena penyimpanan berbasis harddisk. Sebagai alternatif, In-Memory Database (IMDB) seperti Redis menawarkan kecepatan akses yang lebih tinggi dengan menyimpan data langsung di memori RAM. Pengelolaan cache juga memerlukan strategi yang tepat dalam menentukan data yang harus dipertahankan atau dihapus saat cache penuh. Algoritma penggantian cache seperti Least Recently Used (LRU), Least Frequently Used (LFU), Random Replacement, dan First In First Out (FIFO) memiliki keunggulan masing-masing dalam mempertahankan efisiensi cache. Berdasarkan hal tersebut, penelitian ini bertujuan untuk menganalisis “Pengaruh Sistem Cache Berbasis In-Memory Database pada Aplikasi Web dalam Meningkatkan Kinerja Akses Data.” Hasil penelitian ini diharapkan dapat memberikan wawasan bagi pengembang dalam memilih teknologi dan strategi caching yang optimal untuk meningkatkan efisiensi aplikasi web serta mengurangi waktu akses data secara signifikan

Influence of chlorhexidine 2% and sodium hypochlorite 5.25% on micro-tensile bond strength of universal adhesive system (G-Premio Bond)

Aim: One of the reasons for the failure of adhesion in composite restorations and secondary caries may be the chemical irrigants used during the endodontic treatment. NaOCl is widely used for the biomechanical preparation of root canals due to its antimicrobial properties and capacity to dissolve organic material. In addition, another very effective decontamination solution is chlorhexidine 2%. There are few studies about the effect of root canal irrigation solutions on bond strength of universal adhesives therefore, in this study we have investigated the influence of CHX 2% and NaOCl 5.25% on micro-tensile bond strength of G-Premio Bond. Methods: Twenty-four human teeth were randomly allocated to the following groups: G1, immersion in saline solution 0.9% for 30 minutes (control); G2, immersion in CHX 2% for 30 minutes; G3, immersion in NaOCl 5.25% for 30 minutes. After restoration, the dentin/resin interface was tested by micro-tensile bond strength. The surfaces morphology was analyzed by Scanning Electron Microscopy. Data were analyzed by ANOVA followed by Tukey test in SPSS software Version 24. Results: There was a statistically significant difference between G3 and G1 (P < 0.05). There were no statistically significant differences among G1 and G2, G2 and G3. Conclusion: Root canal irrigation with NaOCl 5.25% significantly reduced the micro-tensile bond strength in the G-Premio Bond at self-etch mode, but the use of CHX did not make a significant difference

The relationship of mood status, quality of life, and dietary intake with migraine symptoms among women with migraine

Background and aims: Migraine is a neurologic disorder with wide global spread. Quality of life (QOL) and dietary factors are important parameters in migraine management. The aim of this study was to evaluate the relationship of mood status, QOL, and dietary intake with migraine symptoms among women with migraine. Methods: This cross-sectional study was conducted on 143 women with migraine aged 20–40 years who were randomly selected from two clinics in Isfahan, Iran. Data were collected using the Food Frequency Questionnaire for Assessing Dietary Patterns, a visual analogue scale for migraine headaches, the Migraine-Specific Quality of Life Questionnaire, and the Depression Anxiety Stress Scale. The serum level of calcitonin gene-related peptide (CGRP) was also measured. Results: Participants’ age and number of sleeping hours per 24 hours had significant relationship with migraine severity, depression and anxiety had significant relationship with migraine severity and the duration of migraine attacks, and QOL had significant relationship with migraine severity and the duration and frequency of migraine attacks. Daily intake of riboflavin also had significant relationship with frequency of migraine attacks, while daily intake of water had significant relationship with migraine severity (P 0.05). The relationships of vitamin D and magnesium intake with depression were also significant (P < 0.05). Conclusion: Serum level of CGRP has no significant relationship with migraine attacks, while depression, anxiety, QOL, and magnesium and vitamin D intake have significant relationship with migraine attacks. Keywords: Migraine, Depression, Mood status, Quality of life, Dietary intak

Comparison of the Efficacy of Dexamethasone and Methylprednisolone in Infiltration Injection for Postendodontic Pain in Patients with Necrotic Pulp: A Randomized Controlled Clinical Trial

Purpose. Postendodontic pain is one of the problems of root canal therapy. +is clinical study aimed to evaluate the effect of infiltration injection of dexamethasone and methylprednisolone on postendodontic pain in patients with necrotic pulp. Methods. A total of 80 volunteers with necrotic pulp teeth were included and assigned to two groups (n � 40). After the administration of local anesthesia and before root canal therapy, in group 1, an infiltration injection of 1 ml of dexamethasone was done and in group 2, an infiltration injection of 1 ml of methylprednisolone was done in the buccal vestibule of each tooth. Patients’ pain was reported using a visual analogue scale at pretreatment and 6, 12, 24, and 48 hours after treatment. Results. +ere was no significant difference between the two groups receiving dexamethasone and methylprednisolone at pretreatment and 6, 12, 24, and 48 hours after endodontic treatment. Conclusions. Infiltration injection of dexamethasone and methylprednisolone had a significant effect in reducing pain after the endodontic treatment in necrotic pulp teeth, but between 6 and 12 hours, methylprednisolone had significantly more effect on pain relief than dexamethasone. Overall, the use of any of these drugs to reduce postendodontic pain is recommended