Digital Commons Network^™

Educating Nurse Practitioners To Avoid Urine Cultures To Prevent Overuse Of Antibiotics, Diane Evelen Deangelo

Walden Dissertations and Doctoral Studies

Unnecessary antibiotics are often ordered for positive urine cultures in long-term care (LTC) residents despite a lack of symptoms, indicating asymptomatic bacteriuria (ASB). Treating ASB with antibiotics can result in antibiotic-resistant organisms, allergic reactions to antibiotics, and secondary infections such as clostridium difficile. The purpose of this DNP project was to provide an evidence-based education intervention regarding management of ASB and UTIs with the hope of increasing the knowledge among nurse practitioners (NPs) that could be translated into practice and result in a decreased antibiotic use in LTC patients. The DNP project was grounded in Knowles’ adult learning theory and …

Physicians’ Perceptions And Intent To Use Mcdonald Guidelines For Diagnosing Multiple Sclerosis, Daniel E. O'Brien

Walden Dissertations and Doctoral Studies

Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system that affects close to 400,000 patients in the United States and roughly 2.3 million people around the world. Because this is a growing global public health concern, researchers and clinicians are calling for a more efficient adoption of these McDonald MS guidelines in clinical practice as outlined in newly diagnosed guidelines. The purpose of this quantitative correlational study was to examine the relationship between the independent variables gender, guidelines knowledge, years in practice and intent to use the McDonald MS guidelines for diagnosing MS among physicians. …

Marital Status And Human Immunodeficiency Virus Mortality In A Southern County, Javis Nkwanwoh

Walden Dissertations and Doctoral Studies

Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome (HIV/AIDS) remains a substantial cause of mortality, particularly among U.S. segments of the population. Marriage is protective of HIV/AIDS mortality due to monogamy; however, the increased risk of HIV/AIDS mortality among other marital subgroups is understudied. The purpose of this study was to examine the association between marital status and HIV/AIDS mortality among a cohort of HIV infected individuals in a southern county. Mills' behavior theory guided this research as it posits that all behaviors are acquired through conditioning, which occurs through the interaction with the environment. The study had a quantitative research design …

Embracing Dynamic Models For Gene Drive Management, Andrew J. Golnar, Emily W. Ruell, Alun L. Lloyd, Kim M. Pepin

United States Department of Agriculture Wildlife Services: Staff Publications

Robust methods of predicting how gene drive systems will interact with ecosystems is essential for safe deployment of gene drive technology. We describe how quantitative tools can reduce risk uncertainty, streamline empirical research, guide risk management, and promote cross-sector collaboration throughout the process of gene drive technology development and implementation.

Gene drive technologies, although diverse in design and mode of action, are molecular architectures that promote the transmission of genetic information between generations. In theory, the release of one gene-drive-modified organism (GDMO) has the potential to irreversibly alter species, ecosystems, and environmental processes at a global scale (although in practice …

Economic Effects Of Predation By Scaup On Baitfish And Sportfish Farms, Carole R. Engle, Stephen Clements, Brian S. Dorr, J. Brian Davis, Luke A. Roy, Anita M. Kelly

United States Department of Agriculture Wildlife Services: Staff Publications

Fish-eating birds have been found to consume baitfish and sportfish raised on farms in the United States. Understanding the on-farm economic effects of such wildlife conflicts is essential for wildlife management agencies to make informed decisions. Lesser scaup, while not widely considered a fisheating bird, will consume farmed fish. Baitfish and sportfish farms in Arkansas (the major baitfish and sportfish producingstate in the U.S.) were surveyed to gather data on the cost of protecting farm crops from scaup. The values of lost sales revenue from the various species of baitfish and sportfish consumed by scaup were estimated based on a …

Evidence On The Effectiveness Of Small Unmanned Aircraft Systems (Suas) As A Survey Tool For North American Terrestrial, Vertebrate Animals: A Systematic Map Protocol, Jared A. Elmore, Michael F. Curran, Kristine O. Evans, Sathishkumar Samiappan, Meilun Zhou, Morgan B. Pfeiffer, Bradley F. Blackwell, Raymond B. Iglay

United States Department of Agriculture Wildlife Services: Staff Publications

Background: Small unmanned aircraft systems (sUAS) are replacing or supplementing manned aircraft and groundbased surveys in many animal monitoring situations due to better coverage at finer spatial and temporal resolutions, access, cost, bias, impacts, safety, efficiency, and logistical benefits. Various sUAS models and sensors are available with varying features and usefulness depending on survey goals. However, justification for selection of sUAS and sensors are not typically offered in published literature and existing reviews do not adequately cover past and current sUAS applications for animal monitoring nor their associated sUAS model and sensor technologies, taxonomic and geographic scope, flight conditions and …

Rabies Post-Exposure Healthcare-Seeking Behaviors And Perceptions: Results From A Knowledge, Attitudes, And Practices Survey, Uganda, 2013, Sarah C. Bonaparte, Laura Adams, Barnabas Bakamutumaho, Galileu Barbosa Costa, Julie M. Cleaton, Amy Gilbert, Modupe Osinubi, Emily G. Pieracci, Sergio Recuenco, Victor Tugumizemu, Joseph Wamala, Ryan M. Wallace

United States Department of Agriculture Wildlife Services: Staff Publications

Background Rabies is a viral disease of animals and people causing fatal encephalomyelitis if left untreated. Although effective pre- and post-exposure vaccines exist, they are not widely available in many endemic countries within Africa. Since many individuals in these countries remain at risk of infection, post-exposure healthcare-seeking behaviors are crucial in preventing infection and warrant examination.

Methodology A rabies knowledge, attitudes, and practices survey was conducted at 24 geographically diverse sites in Uganda during 2013 to capture information on knowledge concerning the disease, response to potential exposure events, and vaccination practices. Characteristics of the surveyed population and of the canine-bite …

Differing Alterations Of Odor Volatiles Among Pathogenic Stimuli, Patrick Millet, Talia Martin, Maryanne Opiekun, Gary K. Beauchamp, Bruce A. Kimball

United States Department of Agriculture Wildlife Services: Staff Publications

Alterations of the volatile metabolome (the collection of volatiles present in secretions and other emanations) that occur in response to inflammation can be detected by conspecifics and chemometric analyses. Using a model system where mouse urinary metabolites are altered by treatment with lipopolysaccharide (found in the outer cell membrane of gram-negative bacteria), we hypothesized that alteration of body odor volatiles will vary according to the pathogen responsible for inducing the inflammation. We tested this hypothesis by treating mice with different immunogens that engage different immune signaling pathways. Results suggest that alterations of body odor volatiles resulting from inflammation do contain …

Using Object-Based Image Analysis To Detect Laughing Gull Nests, Benjamin F. Martini, Douglas A. Miller

United States Department of Agriculture Wildlife Services: Staff Publications

Remote sensing has long been used to study wildlife; however, manual methods of detecting wildlife in aerial imagery are often time-consuming and prone to human error, and newer computer vision techniques have not yet been extensively applied to wildlife surveys. We used the object-based image analysis (OBIA) software eCognition to detect laughing gull (Leucophaeus atricilla) nests in Jamaica Bay as part of an ongoing monitoring effort at the John F. Kennedy International Airport. Our technique uses a combination of high resolution 4-band aerial imagery captured via manned aircraft with a multispectral UltraCam Falcon M2 camera, LiDAR point cloud data, and …

Impact Of The Histidine‐Containing Phosphocarrier Protein Hpr On Carbon Metabolism And Virulence In Staphylococcus Aureus, Linda Pätzold, Anne-Christine Brausch, Evelyn-Laura Bielefeld, Lisa Zimmer, Greg A. Somerville, Markus Bischoff, Rosmarie Gaupp

School of Veterinary and Biomedical Sciences: Faculty Publications

Carbon catabolite repression (CCR) is a common mechanism pathogenic bacteria use to link central metabolism with virulence factor synthesis. In gram‐positive bacteria, catabolite control protein A (CcpA) and the histidine‐containing phosphocarrier protein HPr (encoded by ptsH) are the predominant mediators of CCR. In addition to modulating CcpA activity, HPr is essential for glucose import via the phosphotransferase system. While the regulatory functions of CcpA in Staphylococcus aureus are largely known, little is known about the function of HPr in CCR and infectivity. To address this knowledge gap, ptsH mutants were created in S. aureus that either lack the open reading …

An Evaluation Of The Anti-Carcinogenic Response Of Major Isothiocyanates In Non-Metastatic And Metastatic Melanoma Cells, Melina Mitsiogianni, Sotiris Kyriakou, Ioannis Anestopoulos, Dimitrios T. Trafalis, Maria V. Deligiorgi, Rodrigo Franco, Aglaia Pappa, Mihalis I. Panayiotidi

School of Veterinary and Biomedical Sciences: Faculty Publications

Malignant melanoma is one of the most deadly types of solid cancers, a property mainly attributed to its highly aggressive metastatic form. On the other hand, different classes of isothiocy- anates, a class of phytochemicals, present in cruciferous vegetables have been characterized by considerable anti-cancer activity in both in vitro and in vivo experimental models. In the current study, we investigated the anti-cancer response of five isothiocyanates in an in vitro model of melanoma consisting of non-metastatic (A375, B16F-10) and metastatic (VMM1, Hs294T) malignant melanoma as well as non-melanoma epidermoid carcinoma (A431) and non-tumorigenic melanocyte-neighboring keratinocyte (HaCaT) cells. Our aim …

Il-10 As A Th2 Cytokine: Differences Between Mice And Humans, Mahima T. Rasquinha, Meghna Sur, Ninaad Lasrado, Jay Reddy

School of Veterinary and Biomedical Sciences: Faculty Publications

The discovery of interleukin (IL)-10 more than 30 years ago marked the beginning of our understanding of how cytokines regulate immune responses, based on cross-regulation between T helper (Th)1 and Th2 cytokines. Although multiple cell types were shown to produce IL-10, its identity as a Th2 cytokine remained strong since it was rigidly associated with Th2 clones in mice, whereas both Th1 and Th2 clones could secrete IL-10 in humans. However, as new Th1/Th2 cell functionalities emerged, anti-inflammatory action of IL-10 gained more attention than its inhibitory effect on Th1 cells, which may occur as an indirect consequence of suppression …

Covid-19 And The Hipaa Privacy Rule: Asked And Answered, Stacey A. Tovino

Faculty Articles

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes coronavirus disease 2019 (COVID-19), raises important and vexing privacy and security issues. Public health officials, law and policy makers, and members of the general public disagree, for example, regarding the amount and type of individually identifiable health data that should be collected, used, and disclosed for public health surveillance, public health investigation, and public health intervention. Stakeholders also diverge in their opinions regarding the sufficiency of federal and state data privacy and security laws. Some stakeholders believe that current statutes and regulations are sufficient to protect individually identifiable …

Health Systems Approach To Ensure Quality And Safety Amid Covid-19 Pandemic In Pakistan, Nousheen Pradhan, Anam Shahil Feroz, Syed Mairajuddin Shah

Community Health Sciences

Ensuring quality and safe care during the coronavirus disease 2019 (COVID-19) pandemic offers a challenge to already strained health systems in low and middle-income countries (LMICs), such as Pakistan with less shock-absorbing capacities. There is a dearth of evidence on mechanisms to provide optimum quality care to COVID-19 patients in the resource-constrained healthcare environment. The lessons learned from the Ebola virus outbreak for the deficient health systems and quality improvement are considered to propose strengthening the health systems response to deliver quality-assured care to patients during the current pandemic. In this regard, the World Health Organization (WHO) health systems framework …

Effect Of Mutation And Vaccination On Spread, Severity, And Mortality Of Covid-19 Disease, Dr Hossam Zawbaa, Hasnaa Osama, Ahmed El‐Gendy, Haitham Saeed, Hadeer S. Harb, Yasmin M. Madney, Mona Abdelrahman, Marwa Mohsen, Ahmed M.A. Ali, Mina Nicola, Marwa O. Elgendy, Ihab A. Ibrahim, Mohamed E.A. Abdelrahim

Articles

Coronavirus disease 2019 (COVID-19) has had different waves within the same country. The spread rate and severity showed different properties within the COVID-19 different waves. The present work aims to compare the spread and the severity of the different waves using the available data of confirmed COVID-19 cases and death cases. Real-data sets collected from the Johns Hopkins University Center for Systems Science were used to perform a comparative study between COVID-19 different waves in 12 countries with the highest total performed tests for severe acute respiratory syndrome coronavirus 2 detection in the world (Italy, Brazil, Japan, Germany, Spain, India, …

Quantification Of Bacterial Shedding From The Respiratory Tract Of Health Care Workers Wearing Paprs And Other Types Of Air-Purifying Respirators On Sterile Conditions In A Simulated Operating Rooms (Ors), Segun Olanrewaju Ajewole

Graduate Theses, Dissertations, and Problem Reports (ETD)

The role of powered air- purifying respirators (PAPRs) in healthcare settings during infectious diseases outbreaks and highly contagious pathogens (e.g., SARS, HINI, Ebola, COVID etc.) has attracted much interest based on the level of respiratory protection they provide and their many positive user features. A common practice among healthcare workers to minimize airborne contaminant exposure has been to use surgical masks or N95 filtering facepiece respirators (FFRs). Surgical masks have been shown to offer minimal respiratory protection and while N95 FFRs offer better respiratory protection, they are not comfortable to use for a prolonged period. With current PAPR designs, exhaled …

My Body, My Choice: Biblical, Rabbinic, And Contemporary Halakhic Responses To Abortion, Adena Berkowitz

Touro Law Review

Since the Supreme Court grounded the right to an abortion in a constitutional right to privacy, legal and societal debate has continued around the status of a fetus in utero, a woman’s countervailing claims, and the interests of states and society as a whole. As American courts have faced an issue that intertwines legal, moral, and philosophical questions, so too the halakhic process confronts analogous complexities. The main line of Jewish tradition makes a much-needed contribution to the discussion of abortion. Without sharing the view that the fetus is from conception fully a person, it stops short of a complete …

Insecticide Treated Nets And Malaria Control Strategy In Sierra Leone, Henry Nk Biayemi

Walden Dissertations and Doctoral Studies

AbstractMalaria is a deadly disease and endemic in Sierra Leone. It is the leading cause of morbidity and mortality amongst children younger than five years in Sierra Leone. Insecticide treated nets (ITNs) are not used widely despite free distribution, low health risks, and proven ability to reduce malaria. The purpose of this quantitative crosssectional study was to investigate the association between a set of independent variables (parental education, parents' economic status, household size, and residence) and the use of ITNs among children under five years of age in Sierra Leone. The study used a secondary dataset from the Ministry of …

Citizens' Perspectives On Accountability Of Nongovernmental Organizations Providing Drinking Water In Northern Ghana, Abdul-Nashiru Mohammed

Walden Dissertations and Doctoral Studies

AbstractAccountability is an important concept in public administration and across multiple sectors. NGOs work towards achieving their social purpose and yet, they are perceived to be accountable only to their donors but not to citizens. The purpose of this qualitative case study was to explore perspectives of citizens in three districts: Bongo, Wa, and Sagnarigu in Northern Ghana on how NGOs demonstrate accountability in fulfilling their commitments in drinking water provision. It specifically investigated the lived experiences of citizens: local government authorities, traditional authorities, and individual citizens from the districts. Research literature emphasized upward accountability resulting in a gap observed …

Association Between Asymptomatic Malaria Infection And Pregnancy Outcome In Delta State, Nigeria, Sadiatu Sally Obi

Walden Dissertations and Doctoral Studies

Pregnant women are vulnerable due to the pregnancy-induced suppressed immunity in malaria-endemic areas. Asymptomatic malaria in pregnancy (MiP) threatens both the mother, fetus, and neonate via chronic placental malaria which impacts maternal-neonatal exchange. Some studies reported that MiP risk factors vary across locations, however, there are few studies on MiP and pregnancy outcome in Nigeria. The purpose of this study was to investigate the association between asymptomatic placental malaria infection and pregnancy outcome among parturients in Asaba, Delta State, Nigeria. This study was developed with a quantitative methodology that utilized primary and secondary healthcare data from 483 subjects aged 18–49 …

A Quality Improvement Evaluation Of A Hospitalist Telemedicine Program, Kelly Marie Awes

Walden Dissertations and Doctoral Studies

Critical access hospitals (CAHs) encounter unique challenges in terms of providingquality resources to their community, often lacking quality measures and continuity comparable to larger regional and tertiary hospitals. One CAH in rural Minnesota implemented an overnight hospitalist telemedicine service to address concerns with provider resources and quality practice. An evaluation of quality improvement implementation was completed to address data regarding ER transfers and inpatient length of stay (LOS). Following the triple aim framework to improve patient care, population health, and decrease costs, Donabedian’s model of quality improvement was utilized. Three months of pre and postimplementation data were collected one year …

Relationship Between Cultural And Religious Practices And Ebola Virus In Freetown, Sierra Leone, Richmond Samuel Kpange

Walden Dissertations and Doctoral Studies

The 2014 Ebola virus epidemic in the West Coast of Africa was a historically unprecedented epidemic with a sustained spread in multiple West African nations, including Sierra Leone. The World Health Organization (WHO) classified Sierra Leone as a high Ebola-affected country as it reported the highest number of deaths (14,124) during the last Ebola outbreak compared to other Ebola-affected countries. Public health experts have given little attention to the impact of sociocultural factors on infectious diseases, especially Ebola. The purpose of this study was to ascertain whether there is a relationship between the spread of EVD and a patient’s gender, …

Relationship Between Cultural And Religious Practices And Ebola Virus In Freetown, Sierra Leone, Richmond Samuel Kpange

Walden Dissertations and Doctoral Studies

The 2014 Ebola virus epidemic in the West Coast of Africa was a historically unprecedented epidemic with a sustained spread in multiple West African nations, including Sierra Leone. The World Health Organization (WHO) classified Sierra Leone as a high Ebola-affected country as it reported the highest number of deaths (14,124) during the last Ebola outbreak compared to other Ebola-affected countries. Public health experts have given little attention to the impact of sociocultural factors on infectious diseases, especially Ebola. The purpose of this study was to ascertain whether there is a relationship between the spread of EVD and a patient’s gender, …

Pseudomonas Aeruginosa Vaccine Development Using Dual-Species Whole Cell And Subunit Vaccines, Catherine Bell Blackwood

Graduate Theses, Dissertations, and Problem Reports (ETD)

Pseudomonas aeruginosa is a Gram-negative opportunistic pathogen which can cause severe, recurrent, and chronic infections. The pathogen is highly adaptable, and pneumonia caused by it is associated with high morbidity and mortality, especially in individuals with the genetic disorder cystic fibrosis. Antibiotic resistance amongst clinical isolates of P. aeruginosa is steadily increasing, and multi-drug resistant strains are prevalent. There is currently no vaccine available for commercial use against P. aeruginosa. For these reasons, we sought to understand the immunity to P. aeruginosa induced by whole cell vaccination and identify antigens for development of future subunit vaccines. In this dissertation, …

Health Disparities By Sexual Orientation Components In The United States, Julia Kay Wolf

Graduate Theses, Dissertations, and Problem Reports (ETD)

Fundamental cause theory encourages researchers to consider broad social conditions that put people at risk of individual-level health-related risks that can lead to health disparities between social groups. Stigma has recently been proposed as a fundamental cause of health disparities as it influences multiple disease outcomes, affects access to resources, and is consistently related to health inequities across historical and geographical contexts. Minority stress theory describes how sexual minorities endure excess stressors in the form of prejudice and discrimination due to their stigmatized status. Considering both frameworks, I explore how stigmatized sexual orientation minority respondents compare to their sexual majority …

The Challenges In Health Care For Pregnant Women In U.S. Correctional Institutions, Mahnoor Yunus

UC Law Journal of Race and Economic Justice

No abstract provided.

The Next Surges Are Here: What Can American Governments Lawfully Do In Response To The Ongoing Covid-19 Pandemic?, Jeff Thaler

Mitchell Hamline Law Journal of Public Policy and Practice

No abstract provided.

Comparison Between The Prevalence Of Probable Post-Traumatic Stress Disorder Among Different Flood Types In Thailand, Natakorn Ritbunyakorn

Chulalongkorn University Theses and Dissertations (Chula ETD)

Floods are one of the most common natural disasters in Thailand. Floods may have a long-term psychological impact on survivals. Post-traumatic stress disorder (PTSD) usually diagnosed among flood victims. However, there is limited information on PTSD from different flooding events in Thailand. This study aimed to determine the prevalence and associated factors of having probable PTSD among different flood types in Thailand. A secondary data analysis was performed using a dataset from previous cross-sectional survey conducted from 2019 to 2020 in Nakhon Sawan and Nakhon Si Thammarat provinces selected from the expert reviews’ discussion. The analysis was performed on 376 …

การพัฒนาเครื่องมือประเมินคุณภาพชีวิตประจำวันโดยผู้ป่วยหรือผู้ดูแลเพื่อการบริบาลผู้ป่วยมะเร็งระยะท้าย, พรทิพย์ ปรีชาไชยวิทย์

Chulalongkorn University Theses and Dissertations (Chula ETD)

การศึกษาครั้งนี้มีวัตถุประสงค์ 1) เพื่อพัฒนาเครื่องมือการรายงานผลเกี่ยวกับภาวะสุขภาพด้วยตนเองสำหรับผู้ป่วยมะเร็งระยะท้ายที่ได้รับการดูแลแบบประคับประคอง (PROMs-TCP) และทดสอบความตรงและความเที่ยงของเครื่องมือ PROMs-TCP 2) การพยากรณ์สถานะสุขภาพด้วยแบบจำลอง Markov การศึกษาประกอบด้วย 3 ขั้นตอน ได้แก่ 1) การพัฒนาเครื่องมือใช้เทคนิคการทบทวนวรรณกรรม ร่วมกับการประชุมกลุ่มย่อย ในกลุ่มผู้เชี่ยวชาญ และกลุ่มพยาบาลที่ปฏิบัติงานในคลินิกดูแลผู้ป่วยแบบประคับประคอง และทดสอบความถูกต้องของเนื้อหาโดยการประเมินของผู้เชี่ยวชาญ 2) การทดสอบความตรงและความเชื่อถือได้ของเครื่องมือ โดยเก็บข้อมูลนาน 10 วัน ในอาสาสมัคร จำนวน 169 ราย ตรวจสอบความถูกต้องตามเกณฑ์ ความตรงเชิงจำแนก ความไวต่อการเปลี่ยนแปลง และความน่าเชื่อถือภายในและภายนอก 3) การพยากรณ์สถานะสุขภาพด้วยแบบจำลอง Markov ผลการศึกษาพบว่า เครื่องมือประเมินคุณภาพชีวิตโดยผู้ป่วยหรือผู้ดูแลเพื่อการบริบาลผู้ป่วยมะเร็งระยะท้าย หรือเครื่องมือการรายงานผลเกี่ยวกับภาวะสุขภาพด้วยตนเองสำหรับผู้ป่วยมะเร็งระยะท้ายที่ได้รับการดูแลแบบประคับประคอง (PROMs-TCP) ประกอบด้วย 6 ข้อคำถาม ความถูกต้องของเนื้อหารายข้อคำถาม (I-CVI) อยู่ระหว่าง 0.8 ถึง 1 และความถูกต้องของแบบสอบถามทั้งฉบับ (S-CVI) เท่ากับ 0.97 ความสัมพันธ์ระหว่าง PROMs-TCP และ Palliative care Outcome Scale (POS) อยู่ในระดับปานกลางถึงสูง (r = -0.7 ถึง -0.8) เครื่องมือ PROMs-TCP มีจุดตัดที่ 4 คะแนน คัดกรองสถานะสุขภาพไม่ดี ภายใต้พื้นที่ใต้โค้ง Receiver Operating Characteristic (ROC) เท่ากับ 0.91 (95% CI 0.90, 0.93) ความไวร้อยละ 76.91 ความจำเพาะร้อยละ 88.67 การทดสอบความเชื่อถือได้ของเครื่องมือ พบว่ามีความสอดคล้องภายในอยู่ในระดับดี ค่า Cronbach’s alpha coefficient = 0.85 ความสอดคล้องภายนอกระหว่างผู้ป่วยกับผู้ดูแล และระหว่างผู้ป่วยกับพยาบาลที่ให้การดูแล อยู่ในระดับปานกลางถึงดี (Cohen's Weighted …

Synthesis Of Intracellular And Extracellular Gold Nanoparticles With A Green Machine And Its Antifungal Activity, Nurbanu Gürsoy, Betül Yilmaz Öztürk, İlknur Dağ

Turkish Journal of Biology

Green synthesis method is being increasingly used in the development of safe, stable, and eco-friendly nanostructures with biological resources. In this study, extracellular and intracellular synthesis of gold nanoparticles (AuNPs) was carried out using green algae Chlorella sorokiniana Shihira & R.W. Fresh algae were isolated and identified from Musaözü Pond located in the province of Eskişehir and then extraction process were performed. Optimization studies were studied using pH value, metal salt concentration, and time parameters for extracellular synthesis and using only time parameter for intrasellular synthesis. Since more controlled and optimum conditions can be achieved in the production of AuNPs …