mohammad mahdavi

In this research, an analytical expression of the Weibel electromagnetic instability growth rate is investigated for strongly coupled plasma in the presence of Coulomb collisions in the beam-plasma interaction under a low-frequency wave condition. In this regard, the distribution function governing the relativistic beam and plasma particles have been considered as semi-Maxwellian and Kappa distribution functions respectively. The effect of the temperature anisotropy parameter, the spectral index, quantum and relativistic parameters on Weibel electromagnetic instability growth rate have been investigated in collisional and non-collisional states. The obtained results show that the Coulomb collision frequency of particles plays an important role in suppressing the unstable modes in isotropic plasmas due to increase in the free energy of the plasma. Therefore, it was concluded that the Weibel instability growth rate in collision state has a more stable situation than in the non-collisional state in the strongly coupled plasma with Kappa distribution function.

Alfred North Whitehead's "process philosophy," a novel and influential perspective in contemporary philosophy, examines the organic and interconnected relationships between the various elements of existence and processes. This approach, stemming from philosophical and scientific insights, posits that reality is not understood as a static and fixed collection of entities, but rather as a dynamic and interwoven network of events and endless change.  These continuous changes represent a perpetual transformation in the nature of being. In this context, the concept of "becoming" is depicted as the most fundamental principle in Whitehead's organismic thought. The importance of this is particularly evident in understanding the continuous changes in existence and the interactions between events and entities.  Furthermore, the impact of these changes on theological viewpoints and human conceptions of God and the world in general is highly noteworthy. This research aims to utilize an analytical method to investigate the influence of process philosophy on the formation and development of "process theology." From the perspective of process theology, conceptions and viewpoints regarding God as a being undergoing "process" and transformation are clearly incompatible with the traditional approach that identifies God as a static and unchanging being. This contradiction can lead to significant consequences and transformations in contemporary religious thought and in our understanding of the relationship between humanity and God, and generally create new areas and serious challenges for traditional faith.

The Arterial Switch Operation (ASO) has been the preferred surgical method for Transposition of great arteries (TGA) since its introduction over 40 years ago. Although initial survival rates have improved significantly, long-term complications often require reoperation. In this retrospective cohort study, medical records of 302 patients with TGA, who underwent ASO between 2004 and 2022, were reviewed. Data on demographic and morphological characteristics, surgical reports, and follow-up interventions were collected. Reoperation data, including surgical and catheter-based interventions, were analyzed. Thirty-seven reoperations were performed on 31 patients, with a reoperation rate of 10.26%. Open surgical interventions included Right Ventricle Outflow Tract Obstruction (RVOTO) relief (3.31%), neo-aortic root and valve surgery (0.66%), ascending aorta replacement (0.33%), VSD closure (0.33%), and pacemaker implantation (2.31%). Catheter-based interventions included balloon angioplasty (1.65%) and stent implantation (1.65%) for RVOTO, with additional procedures for aortic arch stenosis (0.66%) and coronary artery stenosis (0.33%). Residual shunts were treated in 0.99% of cases. ASO has revolutionized the management of TGA, providing infants a chance at a normal, healthy life. As our understanding of congenital heart defects grows, ASO remains pivotal in enhancing patient outcomes. Despite the average time to reoperation being 4 years, regular follow-up is essential. Gradual complication development necessitates periodic monitoring to prevent escalation requiring surgical intervention.

Kawasaki disease (KD) is an acute, self-limiting vasculitis that predominantly affects children under five years of age. It is recognized as the leading cause of acquired coronary artery disease in this age group.

This manuscript presents two cases of KD complicated by significant coronary artery abnormalities, which ultimately necessitated heart transplantation.

Emphasizing the importance of early diagnosis and treatment, this study underscores the critical need for continued research to improve outcomes for affected patients.

The insertion of a central venous catheter (CVC) is a necessary procedure prior to pediatric cardiac surgery. Although CVC insertion is generally safe, the occurrence of complications, while infrequent, can include the rare combination of pneumothorax and hemothorax. This study reports a rare case of concurrent pneumothorax and hemothorax in a 5-year-old child with cardiac arrest after induction of anesthesia. A 5-year-old patient, eligible for either the Fontan procedure, suffered a cardiac arrest following CVC insertion. An echocardiogram, performed immediately, ruled out cardiac tamponade. However, the presence of both hemothorax and pneumothorax necessitated the insertion of a pigtail catheter and chest tube. In pediatric patients requiring CVC via the subclavian vein, it is prudent to establish peripheral venous access a priori. This precautionary measure ensures the availability of a conduit for fluid resuscitation, should the need arise.

This paper, aims to evaluate the impacts of potential climate change on the stream flow of a semiarid catchment (called Merek) in western Iran using Distributed Catchment Scale Model (DiCaSM) and IHACRES lumped model and compare their ability in simulation of the future stream flow in this area. The joint probability plot was used to generate seasonal climatic change factors (% change in rainfall and change in temperature ◦C) to apply as an input to the DiCaSM model. A suite of 15 Atmosphere-Ocean Global Circulation Models (AOGCMs) from the Coupled Model Inter-comparison Project (CMIP) with monthly rainfall and temperature data for the baseline period were evaluated. By analyzing the models, finally, the three best models, including GFDLCM3, CNRM-CM5 and NorESM1-M models, which reproduce the climatic behavior of monthly temperature and precipitation values, were selected. To study the impact of future climatic change on water supply, this study applied the RCP Scenarios. It proved an acceptable performance in reproducing of the historical observations three Representative Concentration Pathways (RCP2.6, RCP4.5, and RCP8.5) scenarios for the future period 2040−2069. Results indicated that both hydrological models were able to simulate the observed stream flow successfully in the study catchment. The projections of three AOGCMs showed that the future temperature would be increased in the area, while there was no agreement between the models in simulation of future rainfall. Changes in stream flow simulated by DiCaSM model were ranged from −5.2% to 6.2% for the period 2040−2069, while for IHACRES model, the changes ranged from −37.7% to 10.1%. Overally the model performed extremely well for both the calibration and validation years. It is recommended to use these hydrological models for a general evaluation of climate change impact in water resources studies.

Today, the management of the relatives of state agents has become one of the most important governance issues in the country. Therefore, the current research is done with the aim of designing an interactive model for the management of agents' relatives in Islamic governance. this research , In terms of its purpose is practical and in terms of its method, is placed in the category of exploratory qualitative research. for this research Grounded Theory method was used And 17 professors of East Azerbaijan universities who are experts in the research field and had experience in executive management at macro levels were interviewed. Data analysis was done in three stages of open, central and selective coding, and the result was the extraction of 148 open codes, 22 selective codes and 10 central codes.Then, within the framework of Strauss-Corbin's method, the final and comprehensive model of interaction with agents' relatives was designed with emphasis on their management and control, which is the central category of this research; Legitimacy and acceptability of the system as causal factors, Monopoly and high expectations of managers and their relatives as underlying factors, Deterioration of human and administrative forces as intervening factors, Gaining and restoring legitimacy as a strategy, And the educational and systemic solutions were identified and categorized as the consequences of the model. The strict control of the relatives of the government administrators became the central category of the model Because of more codes implying it.

The temperature turbulence generated by the ponderomotive force of the high-power laser can significantly modify P-11B fusion reactivity. The results of this study have shown that higher temperature turbulence leads to an increased requirement for the confinement parameter in P-11B fuel. As a result, achieving ignition necessitates greater driver energy and a longer development time. Additionally, a 50% reduction in the temperature turbulence parameter yields a substantial 71% decrease in the confinement parameter, accompanied by a 21% increase in the maximum fusion energy fraction. When the temperature turbulence exceeds a value of 10, the bremsstrahlung surpasses the fusion power, making ignition unattainable. The findings underscore the importance of maintaining temperature turbulence below 1 to approach the ignition conditions required for P-11B fuel.

The principle of the priority of existence (asalat al-wujud), a fundamental tenet of Islamic philosophy, particularly in the transcendental theosophy (ḥikmat mutaʿāliya) of Mulla Sadra, posits the precedence of existence over essence. This theory considers existence as an independent and primary reality from which the essence of beings is derived. In Islamic philosophy, "asalat" signifies the source of effect, and the external realization of an object is through this primordial principle. This article, employing an analytical-descriptive approach and examining the works of Avicenna (Ibn Sina), traces the roots of Sadra's theory of the priority of existence in the pre-transcendental theosophical thought of this philosopher, demonstrating that Avicenna's statements can illuminate this theory. Evidence such as the equivalence of existence and goodness, the indifference of essence to existence and non-existence, the supervention of existence upon essence, and the inherent contingency of existence, indicates the roots of Mulla Sadra's theory of the priority of existence in Avicennan thought. However, differences and distinctions exist between the priority of existence in transcendental theosophy and Avicenna's concept, which are discussed in detail in the article. The theological implications of this theory can have profound effects on our understanding of being, God, the human relationship with God, prophethood, imamate, the embodiment of actions, and so on. These implications demonstrate the depth and breadth of this theory's influence on various areas of Islamic theology.

Heart transplantation brings about a shift in lifestyle and quality of life for children and adolescents post-surgery. Enhancing the quality of life in pediatric heart transplant recipients is among the crucial responsibilities of nurses. This study aimed to investigate the impact of a tele-nursing supportive educational program on adherence to treatment and quality of life in children aged 12-18 years.

This study was a quasi-experimental single-group design. This study investigated the effectiveness of interactive and supportive education programs on the quality of life and medication adherence of 41 pediatric patients referred to a specialized hospital for heart transplantation in Tehran. Participants were selected through census sampling and received education through communication software such as WhatsApp, Skype, and Telegram, which were chosen by the patients and their parents. The program lasted for eight weeks, and data were collected using a socio-demographic questionnaire, the Pediatric Quality of Life Inventory for Cardiac Problems, and the Modanloo Medication Adherence Scale. The collected data were analyzed using SPSS version 16.

Results showed a significant improvement in the mean score of quality of life and its dimensions (p=0.001) as well as the medication adherence score and its dimensions (p=0.001) following the implementation and follow-up of the intervention program.

The intervention program had a positive impact on the quality of life and medication adherence of the participants. Tele-nursing interventions can be an effective and accessible method to enhance treatment adherence and improve the quality of life for pediatric heart transplant recipients.

Islamic societies, influenced by Islamic teachings, are moving towards a destination where they will experience the replacement of the exploitative capitalist civilization of the West with a justice-oriented civilization. This civilizational transition is carried out on the assumption of the comprehensiveness of Islamic law in responding to the material and spiritual needs of human society on the one hand and disillusionment with the material civilization of the West on the other hand. Thus, the ground is prepared for the emergence of the last divine reserve and the establishment of the final and global civilization of Islam, namely the government of Imam Mahdi(A.S). In order to play a role in this civilizational transition, each individual in society has duties and obligations, one of which, from the perspective of the Supreme Leader, is “hard work and effort.” In this article, an attempt has been made to examine some of the requirements and requirements of hard work and effort for the realization of the new Islam. The findings of the research, which was based on a descriptive-analytical and documentary method, showed that a value-based view of work, strengthening work conscience, matching work with expertise and commitment, and entrepreneurship are among the most important strategies of work culture in order to realize a modern Islamic civilization.

Candida species are known as one of the most prevalent agents causing opportunistic gastrointestinal infections in immunodeficient patients.

In this study, species distribution of Candida was determined in pediatric heart transplant recipients with and without gastrointestinal symptoms.

In this study, 59 stool samples were collected from heart transplant recipients including patients with and without gastrointestinal symptoms aged between 1-17 years. The patients underwent heart transplant surgery at Rajaei Cardiovascular, Medical & Research Center, in Tehran. Sabouraud dextrose agar was used for the initial culture, and CHROMagar Candida media were used for initial differentiation. Definitive species identification of Candida isolates was performed using PCR-RFLP and sequencing following DNA extraction.

In the present study 13 (22 %) overgrowth isolates associated with patients with gastrointestinal symptoms were positive for Candida spp. using microscopy and culture. The Candida spp. including C. albicans 5 (38.5%), C. glabrata 4 (30.7%), C. guilliermondii 2 (15.4%), and mixed infection of C. albicans and C. glabrata 2 (15.4%) were identified.

C. albicans was the predominant species in pediatric heart transplant recipients with Candida intestinal colonization that was substantiated by the presence of pseudohyphae on microscopy, which could be consider as an evidence of invasion.

The beam-plasma particles distribution function is one of the parameters which plays an important role in the energy-traveling mechanism of the relativistic electrons generated by the laser-plasma interaction in the Inertial Confinement Fusion Plasma. This paper investigates an analytical expression of the beam-plasma particles distribution function effect such as the Kappa, Semi-relativistic Maxwellian and bi-Maxwell distributions on the Weibel electromagnetic instability growth rate in strongly coupled plasmas under the low-frequency wave condition. The obtained results show that the maximum growth rate of the beam- plasma particles with semi-Maxwell distribution function is based on the temperature anisotropy parameter, density gradient, quantum and relativistic parameters has the highest possible value compared to the other two beam-plasma particles distribution functions. Also, the bi-Maxwellian distribution function has a more stable growth rate than the Kappa and the semi-Maxwell distribution functions.

A facile synthetic route for constructing 2-thioxoquinazolin-4(1H)-one derivative through cyclization reactions using readily available starting materials 2-aminobenzoic acids, alkyl/aryl amines, and carbon disulfide is described. These reactions occur under mild conditions, producing the desired products with good to high yields. Molecular docking was conducted to assess the activities of the 2-thioxoquinazolin-4(1H)-one derivative against breast cancer protein (PDB ID: 1JNX), liver cancer protein (PDB ID: 2H80), and colon cancer protein (PDB ID: 4UYA). Furthermore, an ADME/T analysis was performed to evaluate the impact of these compounds on human metabolism.

The most prevalent form of leishmaniasis is cutaneous leishmaniasis (CL), which manifests as a single ulcerative or nodular lesion that usually heals on its own. The aims of this study were to investigate the histopathologic and clinical features of CL patients.

This cross-sectional study was accomplished on 70 CL patients that referred to Razi dermatology hospital in Iran, over a five-year period from 2016 to 2020. Included patients were those who were diagnosed clinically suspected patients whom their disease was confirmed through histopathology examination.

The age of patients ranged from 2 to 76 years with a mean of 42.26 ± 20.86 years. The majority of patients were men (54.3%). The plaque form lesions were the most frequent type (64.3%). Respecting lesion site, face, and upper limbs were more frequent with the abundances of 47.1% and 34.3%, respectively. All of the patients had evidence of cellulitis on ultrasound. The most prevalent change of epidermis was hyperkeratosis (42.8%). Regarding dermal histopathologic changes, infiltration of lymphocytes (61.4%), plasma cells (58.6%), and histiocytes (48.6%), as well as granuloma formation (54.3%) and leishman body presence (54.3%) were the dominant changes. Some patients had atypical forms of CL as six of them had lupoid cutaneous leishmaniasis (LCL) and five had sporotrichoid cutaneous leishmaniasis (SCL).

In this study, men and those who were in middle age were more susceptible to be infected, so it suggests considering them particularly in the preventive programs. Moreover, histopathological findings of CL, including LCL and SCL, are presented. These findings may be beneficial for dermatologists and dermatopathologists to differentiate them from other cutaneous diseases.

Despite its rarity, pulmonary capillary hemangiomatosis (PCH) presents a significant diagnostic challenge. Due to its similarity to other pulmonary vascular diseases, such as pulmonary veno-occlusive disease, it is characterized by abnormal pulmonary capillary proliferation, which is a rare cause of primary pulmonary hypertension. This case was the first reported instance of PCH in Shahid Rajaee Heart Hospital in Tehran, Iran, in 2023, which was confirmed by genetic testing. It highlighted the importance of considering PCH among the differential diagnoses for pulmonary hypertension, even in adolescent patients. The 13-year-old patient’s main complaints were progressive exertional dyspnea and chest pain. He had no previous medical history and had not taken any pharmaceutical or herbal medications. Critical clinical findings included a heart murmur, an electrocardiogram revealing right ventricular hypertrophy, and echocardiogram evidence of pulmonary hypertension. The main diagnosis was PCH, as shown by CT findings of pulmonary artery dilatation and diffuse nodular ground glass opacities. Genetic tests indicated pathogenic EIF2AK4 mutations and suspicion of PCH. Therapeutic intervention included vasodilator therapy, which exacerbated the patient’s condition. This case emphasized the importance of maintaining a high index of suspicion for rare causes of pulmonary hypertension, such as PCH. The outcome was to prepare the patient for lung transplantation. To differentiate PCH from other pulmonary vascular diseases, a combination of clinical presentation, radiologic studies, genetic analysis, and response to treatment is required to determine appropriate management, particularly lung transplantation.

The system of existence and the system of this material world are designed and governed based on Divine Wisdom, and on the other hand, Divine Wisdom is the origin of actual wisdom in human life. Therefore, as the caliph of God, by being created with the Attribute of Divine Wisdom, man can realize a wise life for himself and others in the society. Therefore, this research, by using the descriptive-explanatory method, wants to answer the basic question that what are the effective aspects of achieving the position of wisdom in society and what effect can it have on human life style? In this research, it has been tried for applying the belief in the Attribute of Divine Wisdom, first the Wisdom of God from different aspects and then the effects of faith in His Wisdom in human life. The findings of the research show that belief in Divine Wisdom in society and the creation of human beings as wisdom in giving meaning to life, strengthening the family, protecting the privacy of the family, responsibility and prosperity, making firm of work, production of knowledge, wisely using and etc., have a v very important role. The results of the this research show that man finds real life based on the belief in God, the Wise, and in this style of life, man naturally considers the model that has the most harmony to achieve closeness to God as desirable in his personal and social life. Therefore, with his own will and authority, he puts all his life's affairs in the path of this goal and all the actions and attributes of man have the Divine color and smell, and in this way, the functions and different aspects of man can be transformed into the manifestation of God.

Computed tomography (CT) imaging has a large portion in the dose of patients from radiological procedures; therefore, accurate calculation of radiation risk estimation in this modality is inevitable. In this study, a method for determining the patient‑specific effective dose using the dose–length product (DLP) index in lung CT scan using Monte Carlo (MC) simulation is introduced.

EGSnrc/BEAMnrc MC code was used to simulate a CT scanner. The DOSxyznrc simulation code was used to simulate a specific voxelized phantom from the patient’s lungs and irradiate it according to X‑ray parameter of routing lung CT scan, and dose delivered to thorax organs was calculated. Three types of phantoms were simulated according to three different body habits (slim, standard, and fat patients) in two groups of men and women. A factor was used to convert the relative dose per particle in MC code to the absolute dose. The dose was calculated in all lung organs, and the effective dose was calculated for all three groups of patient body habits. DLP index and volume CT dose index (CTDIvol) were extracted from the patient’s dose report in the CT scanner. The DLP to effective dose conversion factor (k‑factor) for patients with different body habitus was calculated.

Lung radiation dose in slim, standard, and fat patients in men was 0.164, 0.103, and 0.078 mGy/mAs and in women was 0.164, 0.105, and 0.079 mGy/mAs, respectively. The k‑factor in the group of slim patients, especially in women, was higher than in other groups.

CT scan dose indexes for slim patients are reported to be underestimated in studies. The dose report in CT scan systems should be modified in proportion to the patient’s body habitus, to accurately estimate the radiation risk.

This paper investigates the influence of temperature anisotropy on the ignition criterion of deuterium-tritium fuel in fast ignition fusion schemes that rely on short-pulse lasers-generated shock waves. The results show that increasing the temperature anisotropy parameter, β = T⊥/T∥, unexpectedly increases the fraction of alpha particles created and deposited into the ignition domain. For β < 1, the maximum confinement parameter remains below 4 g/cm2, whereas for β > 1, it exceeds 4 g/cm2. The fusion energy fraction, fα, decreases throughout the laser pulse irradiation of the fuel (1 picosecond). A 100-fold increase in the temperature anisotropy parameter, β, leads to a 38% increase in the required plasma density times the hot spot dimension for fuel ignition. However, for β less than 1, the fusion energy fraction deposited decreases with time and reaches its minimum value of about 0.1 at the end of the laser pulse.

The purpose of the current research is to explain the Islamic view on kinship and nepotism, which has become an important issue in the country's administrative system and the Islamic political system.

by using the citation method and with an inferential approach, the events related to the reign of two innocent leaders; Prophet (pbuh) and Imam Ali (pbuh) who had the opportunity to rule were studied and investigated.

The findings showed that the Masoom (Infallible) leaders emphasized the numerous harms and negative consequences of nepotism for the Islamic government and continuously avoided installing relatives in material and political positions and appointed their worthy relatives only in spiritual matters such as Jihad and Tabligh, without any suspicion of material exploitation.

In accordance with the public interest and considering that in Islamic thought, government positions are not considered privileges, but only for the fulfillment of duties; No matter how powerful and efficient the rulers' relatives are, their presence only in positions related to spiritual affairs and jihad is acceptable and strengthens the Islamic system.

The practical dimension of human existence is related to his actions; Actions that shape his personality and with the guidance of practical wisdom can be transformed into wise actions and cause human happiness. The findings of the research, which is based on the descriptive and analytical method and based on library sources, show that Farabi paid special attention to the practical dimension of human existence in his view in the field of Madina Fazeleh; So that the actions of the people of Madina, along with knowledge, are among the components that cause Madina to become virtuous and Fazeleh, and if the people of Madina have knowledge; But if there is weakness in their actions, it will not be a utopia, and according to Farabi's own interpretation, it is an immoral and Faseghe Medina. It means a Medina whose inhabitants believe and know God and goodness; But in practice, they do not adhere to their knowledge. In the same way, the analysis of the works of Allameh Muhammad-Taqi Ja'fari shows that he considers action to be the main component after awareness and knowledge to reach an Intelligible life and even believes that the reasonableness of a Intelligible life is not only through theoretical Intellect, but also includes theoretical and practical Intellect. Examining the views of two thinkers shows that they both pay attention to wise action as the main component and acknowledge its role in individual and social life.

In this research, the effect of deuterium beam energy distribution function resulting from TNSA and RPA mechanisms on the fast ignition of D/He-3 fuel pellet has been investigated. The fuel is irradiated with a deuterium beam through a conical guide. The energy distribution function will be different in different mechanisms. Penetration depth and stopping power of ignitor beam with mono- energy, Maxwellian and Gaussian distribution of energy are calculated. Calculations show that the Maxwellian beam from TNSA mechanism, penetrates up to about 100 μm in the fuel and the height of deposition peak is still in plasma corona. The height of the peak has also increased about 25 times compared to the case where the Gaussian beam is considered. Also, the obtained results are shown that the energy deposit of the deuterium beam resulting the RPA mechanism will be completely localized and will be more concentrated in the dense fuel core.

In human education, there must be evidence to make Ashraf a creature, and the context of this formation must undoubtedly be provided by families, so the family is the first and most fundamental factor in the development of human personality. This research has been done with the aim of explaining parenting style in Islamic attitude. The present study is of descriptive-analytical type. The statistical population includes all adolescents and young people in Tabriz in the age range of "12 to 30" in 1400, of which 340 people were selected by simple random sampling. The research tool is a standard questionnaire. The results indicate that there is no significant relationship between parents 'education, parents' occupation, class mental affiliation, gender and age group (adolescent / youth) with the variable of parenting style in the Islamic attitude. Also, the value of Pearson correlation coefficient between the dimensions of the variable of parenting style in the Islamic attitude is significant at the level of 99% and there is a positive and direct relationship between the dimensions of the variable of parenting style in the Islamic attitude.

The realization of the Mahdavi utopia for humans is one of the goals that Islam has sought to achieve. From the point of view of Islam, originality is with cultural progress, and reaching the ideal city of Mahdavi is the goal of human evolution in the path of cultural progress. Based on this, the Qur'anic society has paid special attention to the foundation of the family as the center of attention for rulings, rights, manners and ethics, and has strengthened its position with numerous teachings. In order for the family to be able to move in the direction of creating the utopia of Mahdavi city, it must know the requirements of the new era and take very deliberate and purposeful steps. This article has taken a special look at the issue of family with analytical and descriptive method and has examined the cultural components of the family for the realization of Mahdavi's utopia. According to the desired findings which are mentioned in the article, paying attention to the requirements such as creating easy marriage conditions, good company as recommended by the Holy Qur'an to have an ideal life, being responsible and paying attention to affairs and... moving towards the realization of this It provides a life-saving idea.

Carbon dots are spherical nanoparticles that behave differently from other carbon allotropes (carbon nanotubes, activated carbon, graphenes, and fullerenes) and have interesting and significant optoelectronic properties. Carbon dots have attracted a lot of attention due to their harmless elements in their structure (environmentally friendly), low toxicity, high and stable sensitivity, fast response and cheap price compared to other quantum nanoparticles.Conditions and synthetic methods of carbon dots have an essential role in their quality and will improve the properties of the final product. In this study, for the first time, modified carbon dots with active functional groups are synthesized in one step using the microwave method. The synthesized carbon dot was evaluated by instrumental techniques and the presence of nitrogen and oxygen groups in the surface and structure of the synthesized carbon dot was confirmed. The excitation wavelength of 365 nm has a strong emission in the wavelength of about 436 nm. The size of the synthesized carbon dot is about 20 nanometers. Using devices such as UV-Vis, scanning electron microscope (SEM) and transient electron microscopy (TEM), the presence of gold nanoparticles synthesized by red apple peel extract was investigated.The results show that gold nanoparticles prepared using red apple peel extract have a size of 13-20 nm, spherical morphology and good dispersion that are stable for a long time.