Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2024

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 91 - 120 of 30567

Full-Text Articles in Entire DC Network

Tourism Carrying Capacity At Petungkriyono Forest And Its Supporting Areas, Nurwidya Ambarwati Dec 2024

Tourism Carrying Capacity At Petungkriyono Forest And Its Supporting Areas, Nurwidya Ambarwati

Journal of Environmental Science and Sustainable Development

Supported by a variety of diversity and landscapes, the development of tourism in the Petungkriyono area is growing rapidly. Optimizing ecotourism services in the Petungkriyono forest without disrupting the ecosystem and damaging the environment can be done by limiting the number of visitors at tourism sites. This study aims to find out information about the tourism capacity of some tourist attractions in the local forest. This study uses the Cifuentes model to predict the maximum number of visitor capacities that can be accommodated in a tourist attraction called Physical Carrying Capacity (PCC), Real Carrying Capacity (RCC), and Effective Carrying Capacity …


International Economic Agreements As Impediments To Carbon Tax Climate Change Mitigation: Is The Un Framework Tax Convention The Way Forward?, Edwin Vanderbruggen Dec 2024

International Economic Agreements As Impediments To Carbon Tax Climate Change Mitigation: Is The Un Framework Tax Convention The Way Forward?, Edwin Vanderbruggen

Indian Journal of International Economic Law

This article outlines some of the international legal impediments to domestic environmental tax policies in furtherance of climate change mitigation, i.e. certain WTO rules on trade in goods, fuel tax exemptions in aviation treaties, and tax stabilisation provisions that are protected under the umbrella clause of investment treaties. It argues that international action is the most effective and often the only option to address those legal obstacles. The emergence of the United Nations Framework Convention on International Tax Cooperation (‘FTC’) is, in that regard, a timely development. Given the central institutional role UN-related bodies already have in climate change, sea …


Enhanced Calendar Interface Using Ai For Visualizing Meeting Relationships, Ajay Prasad Dec 2024

Enhanced Calendar Interface Using Ai For Visualizing Meeting Relationships, Ajay Prasad

Defensive Publications Series

Current calendar applications lack the ability to effectively visualize relationships between interconnected meetings and do not provide an easy-to-use interface to view the progression of project-related meetings over time or to see the relationships between various meetings. This disclosure describes an enhanced calendar application and associated user interface powered by artificial intelligence (AI) that can automatically identify and visually represent relationships between meetings. With user permission, AI techniques are used to analyze meeting data and/or metadata to determine if two meetings are related. Related meetings are displayed via visual elements such as connecting lines, colors, tooltips, etc. to enable users …


Augmenting Calendar View With Visual Representations Of Event Information, Gulmohar Khan, Ramprasad Sedouram Dec 2024

Augmenting Calendar View With Visual Representations Of Event Information, Gulmohar Khan, Ramprasad Sedouram

Defensive Publications Series

Visual representations in current calendar applications provide minimal to no event information beyond the time slot, title, and location. For effective scheduling and time management, users often need to know additional event information which can be accessed only by opening and consulting each calendar event separately. This disclosure describes techniques to address these shortcomings by augmenting calendar views with richer visual depictions of individual events to enable users to view contextually relevant event-related information at a glance. With appropriate user permissions, the richer depictions are provided by overlaying multiple relevant pieces of data and interactive elements in the visual depiction …


Artificial Intelligence To Quantify Employee Communication And Personality Dynamics Dec 2024

Artificial Intelligence To Quantify Employee Communication And Personality Dynamics

Defensive Publications Series

Systems and methods for evaluating an employee’s professional personality are provided. The systems and methods may enable the use of artificial intelligence to perform sentiment analysis on one or more employee communications, and quantify one or more personality characteristics based on the one or more employee communications. The systems and methods may compare the quantified personality characteristics to one or more employees, and may generate one or more employee scores for employees for each of the one or more personality characteristics.


Democracy, Race, And Nature: The Radicalism Of Anti-Capitalist Politics, Inés Valdez Dec 2024

Democracy, Race, And Nature: The Radicalism Of Anti-Capitalist Politics, Inés Valdez

Emancipations: A Journal of Critical Social Analysis

No abstract provided.


It Seems We Are All Imperial Environmentalists Now, Kieran Dunn Dec 2024

It Seems We Are All Imperial Environmentalists Now, Kieran Dunn

Emancipations: A Journal of Critical Social Analysis

No abstract provided.


Introduction, Alasia Nuti Dec 2024

Introduction, Alasia Nuti

Emancipations: A Journal of Critical Social Analysis

No abstract provided.


Immanent Critique And Dialogical Critical Theory, Paul Apostolidis Dec 2024

Immanent Critique And Dialogical Critical Theory, Paul Apostolidis

Emancipations: A Journal of Critical Social Analysis

No abstract provided.


How (Not) To Decolonize Marx/Ism, Terrell Carver, Gokboru S. Tanyildiz Dec 2024

How (Not) To Decolonize Marx/Ism, Terrell Carver, Gokboru S. Tanyildiz

Emancipations: A Journal of Critical Social Analysis

Since the late 1970s, postcolonial theorizing and decolonizing activisms have directed attention to a taken-for-granted Eurocentrism in Marx/ism. Since the early 2000s, the explosion in available texts, published in original languages and in English translation, has enabled these critiques to develop. Scholars of Marx and activists within Marxism have sometimes responded defensively with apologetics. In this article we analyze an exemplar of this dogmatic and moralizing genre, showing how it deploys three tropes that commonly structure intellectual biography and scholarly commentary. These three story-telling devices are: projection, passivity, and hermeticism. Shifting gear, and proceeding from an agent-oriented reading strategy, we …


The Effect Of Annona Muricata Leaves’ Extract On Wnt Signaling Pathway In Induced Colorectal Cancer In Mice, Layane Massri, Jamilah Borjac, Alaa Matar, Dania Natour Dec 2024

The Effect Of Annona Muricata Leaves’ Extract On Wnt Signaling Pathway In Induced Colorectal Cancer In Mice, Layane Massri, Jamilah Borjac, Alaa Matar, Dania Natour

BAU Journal - Science and Technology

Background: Colorectal cancer (CRC) is a significant global health issue. The Wnt signaling pathway, activated by mutations in APC and β-catenin genes, plays a crucial role in CRC development, leading to the activation of inflammatory pathways involving COX-2 and iNOS, as well as the continuous transcription of cell cycle-related genes promoting CRC pathogenesis. Annona muricata (A. muricata), a tropical tree with various biological activities, including anti-cancerous properties, was investigated for its potential effect on mice induced with colon cancer using 1,2-dimethylhydrazine (DMH, 20 mg/kg) over 12 weeks, and treated with oral A. muricata extract (100 mg/kg, 5 days/week).

Methods: Histopathological …


Development Of An Injectable Chitosan-Based Bioink For Enhanced Bone Fracture Healing Via Msc-Derived Osteogenesis, Zeina H. Adel, Jana A. Hassan, Hala H. Muhammed, Haneen M. Elsaeid, Raghad M. Nasr, Ahmed M. Deghidy Dec 2024

Development Of An Injectable Chitosan-Based Bioink For Enhanced Bone Fracture Healing Via Msc-Derived Osteogenesis, Zeina H. Adel, Jana A. Hassan, Hala H. Muhammed, Haneen M. Elsaeid, Raghad M. Nasr, Ahmed M. Deghidy

BAU Journal - Science and Technology

Worldwide, bone fractures are a major public health concern and, there is an urgent requirement to create new treatments to accelerate the rate of the bone healing process. This research mainly relies on creating a hydrogel that satisfies the bone marrow mesenchymal stem cells (BM-MSCs) and makes it a suitable medium to differentiate into osteogenic cells. We combine the BM-MSCs with a chitosan polymer-based hydrogel, infused with PVA to enhance bone healing, this unique mixture forms " Bioink ". We induced a closed fracture model in the rat's right humerus, followed by injection of a single dosage of bioink. On …


Navigating Wound Closure Strategies: Primary Closure Vs. Delayed Primary Closure In Digestive Surgery—A Systematic Review And Meta-Analysis On Surgical Site Infections, Lam Sihardo, Arnetta Nl Lalisang, Afid B. Putra, Bagus A. Suryawiditya Dec 2024

Navigating Wound Closure Strategies: Primary Closure Vs. Delayed Primary Closure In Digestive Surgery—A Systematic Review And Meta-Analysis On Surgical Site Infections, Lam Sihardo, Arnetta Nl Lalisang, Afid B. Putra, Bagus A. Suryawiditya

The New Ropanasuri Journal of Surgery

Introduction. Surgical site infection (SSI) is a significant concern following digestive surgery, with varying incidence rates based on wound contamination levels. The choice between Primary Closure (PC) and Delayed Primary Closure (DPC) impacts SSI occurrence, making it essential to evaluate their comparative effectiveness. DPC is hypothesized superior to PC to prevent SSI or wound infection after a contaminated abdominal surgery.

Methods. This systematic review study was carried out through PubMed, Scopus, and Cochrane (CENTRAL). Quality was assessed using Risk of Bias (ROB-2) tool. All results were summarized, and quantitative analysis was performed using a random-effect model. This study …


The Significance Of Aldehyde Dehydrogenase 1 In Cancers, Anh L. Nguyen, Caroline O. B. Facey, Bruce M. Boman Dec 2024

The Significance Of Aldehyde Dehydrogenase 1 In Cancers, Anh L. Nguyen, Caroline O. B. Facey, Bruce M. Boman

Department of Pharmacology and Experimental Therapeutics Faculty Papers

The goal of this paper is to discuss the role of ALDH isozymes in different cancers, review advances in ALDH1-targeting cancer therapies, and explore a mechanism that explains how ALDH expression becomes elevated during cancer development. ALDH is often overexpressed in cancer, and each isoform has a unique expression pattern and a distinct role in different cancers. The abnormal expression of ALDHs in different cancer types (breast, colorectal, lung, gastric, cervical, melanoma, prostate, and renal) is presented and correlated with patient prognosis. ALDH plays a significant role in various cellular functions, such as metabolism, oxidative stress response, detoxification, and cellular …


The Complexity And Significance Of Fibroblast Growth Factor (Fgf) Signaling For Fgf-Targeted Cancer Therapies, Anh Nguyen, Caroline Facey, Bruce Boman Dec 2024

The Complexity And Significance Of Fibroblast Growth Factor (Fgf) Signaling For Fgf-Targeted Cancer Therapies, Anh Nguyen, Caroline Facey, Bruce Boman

Department of Pharmacology and Experimental Therapeutics Faculty Papers

Fibroblast growth factors (FGFs) have diverse functions in the regulation of cell proliferation and differentiation in development, tissue maintenance, wound repair, and angiogenesis. The goal of this review paper is to (i) deliberate on the role of FGFs and FGF receptors (FGFRs) in different cancers, (ii) present advances in FGF-targeted cancer therapies, and (iii) explore cell signaling mechanisms that explain how FGF expression becomes dysregulated during cancer development. FGF is often mutated and overexpressed in cancer and the different FGF and FGFR isoforms have unique expression patterns and distinct roles in different cancers. Among the FGF members, the FGF 15/19 …


Uso Pa Ba Ang Pakikibaka: Kontekstuwalisasyon Ng Piling Awiting Makabayan Sa Panahon Ng Pandemya, Ronnel B. Agoncillo Jr. Dec 2024

Uso Pa Ba Ang Pakikibaka: Kontekstuwalisasyon Ng Piling Awiting Makabayan Sa Panahon Ng Pandemya, Ronnel B. Agoncillo Jr.

Malay Journal

Ang mga awitin ay isang magandang daluyan ng pagpapahayag ng mensahe kabilang ang pagpapataas ng diwang makabayan sa pamamagitan ng pagiging malay sa mga isyung panlipunan buhat ng pagmamahal sa bayan. Sa kasaysayan ay marami nang makabayang awitin ang napakikinggan sa mainstream media o tampok na midya, higit pa, ilan sa mga ito ay naging inspirasyon para sa ilang pagbabagong panlipunan. Sa pagpasok naman ng panahon ng pandemya (taong 2020–2022) at laganap na korupsiyon at katiwalian ay may ilang makabayang awitin pang sumalungat sa usong genre at tema ng mga awiting nangunguna sa mga tsart. Layunin ng papel na ito …


Biphasic Models Improved S-Metolachlor Dissipation Endpoint Predictions, K. Badou-Jeremie Kouame, Mary Savin, Cammy Willett, Thomas R. Butts, Erin Grantz, Matthew Bertucci, Samantha E. Robinson, Rodrigo Werle, Nilda Roma-Burgos Dec 2024

Biphasic Models Improved S-Metolachlor Dissipation Endpoint Predictions, K. Badou-Jeremie Kouame, Mary Savin, Cammy Willett, Thomas R. Butts, Erin Grantz, Matthew Bertucci, Samantha E. Robinson, Rodrigo Werle, Nilda Roma-Burgos

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Accurate predictions of herbicide dissipation endpoints are essential for making environmental management decisions, estimating the duration of weed control, and deciding crop replant and rotation options. The performance of the single first-order (SFO), first-order multiple-compartment (FOMC), bi-exponential (BEXP), first-order double-exponential decay (FODED), and first-order two-compartment (FOTC) was evaluated to describe S-metolachlor dissipation. Results showed that the BEXP and FOTC were not appropriate. The FODED was ranked as the top model with the lowest Akaike's information criterion (AICc) value among the other three candidate models and was followed by the FOMC model. The SFO displayed the largest root mean square …


What Is It Like To Be A Diplomat? Reflections On Donald Griffin And Emotion, Oliver H. Turnbull Dec 2024

What Is It Like To Be A Diplomat? Reflections On Donald Griffin And Emotion, Oliver H. Turnbull

Animal Sentience

This commentary addresses three aspects of Donald Griffin’s work: (1) his thoughts beyond cognition, on emotion; (2) his views on the earliest origins of mind, including primitive forms of consciousness; and (3) his diplomatic use of memorable phrases to facilitate change.


Monetary Policy Uncertainty And Agricultural Climate Risk: Does The Agricultural Kuznets Curve Exist?, Chien-Chiang Lee, Farzan Yahya, Md Reza Sultanuzzaman Dec 2024

Monetary Policy Uncertainty And Agricultural Climate Risk: Does The Agricultural Kuznets Curve Exist?, Chien-Chiang Lee, Farzan Yahya, Md Reza Sultanuzzaman

Bulletin of Monetary Economics and Banking

This study explores the impact of Monetary Policy Uncertainty (MPU) on Agricultural Climate Risk (AGCR) in China, particularly in light of recent climate vulnerabilities in the agricultural sector, highlighted by recent floods. Using balanced panel data from 31 provinces between 2010 and 2022, diagnostic tests confirm cross-sectional dependence and slope heterogeneity, and the Westerlund cointegration test indicates a long-term relationship among variables. Results from generalized panel quantile regression show that MPU positively affects AGCR, especially at lower quantiles, but this effect can be moderated by agricultural insurance. The findings also confirm an agricultural Kuznets curve, where agricultural productivity initially increases …


Cultural Adaptation And Environmental Challenges: A Case Study Of Nubian Communities In Egypt Through The Lens Of Cultural Ecology Theory, Imam Wicaksono, Sherif Sa’Ad Algayyar, Ahmed Hassan Mohammad Hassan Dec 2024

Cultural Adaptation And Environmental Challenges: A Case Study Of Nubian Communities In Egypt Through The Lens Of Cultural Ecology Theory, Imam Wicaksono, Sherif Sa’Ad Algayyar, Ahmed Hassan Mohammad Hassan

Journal Of Middle East and Islamic Studies

The purpose of this study is to investigate how the ecological changes brought about by the building of the Aswan Dam have affected the Nubian community's social structure, cultural identity, and coping mechanisms. The study emphasizes how important it is to comprehend how people interact with their surroundings considering modernization, which frequently jeopardizes the viability of regional customs. In addition to a literature review approach, a thematic analysis grounded in Julian Steward's cultural ecology theory—which highlights how societies adjust to changes in their physical surroundings—was used. The results show that ecological changes have profoundly impacted the Nubian people's cultural rites, …


Designing And Manufacturing Low-Cost, Tendon-Driven Soft Robots, Ted Winter-Glasgow, Pablo Borja Dec 2024

Designing And Manufacturing Low-Cost, Tendon-Driven Soft Robots, Ted Winter-Glasgow, Pablo Borja

School of Engineering, Computing and Mathematics

Soft robots have the potential to solve many problems in areas like robotics surgery, human-robot interaction, unmanned exploration tasks, and food harvesting. However, several aspects of soft robotics are still in development, e.g., efficient designs, actuation methods, modeling, and control. This paper provides some designs of tendon-driven soft robots that can be used for educational and research purposes, boosting the understanding of these systems. The proposed designs focus on five features: low manufacturing costs, accessible fabrication methods, simple assembly processes, an open-source approach, and durability.


Mastering Russian Case: Learning Challenges, Current Textbook Approaches, And New Perspectives, Olesya Kisselev, Angelina Rubina Dec 2024

Mastering Russian Case: Learning Challenges, Current Textbook Approaches, And New Perspectives, Olesya Kisselev, Angelina Rubina

Russian Language Journal

Russian case morphology is recognized as a persistent challenge to second (L2) and heritage language (HL) speakers of Russian by researchers and practitioners alike. However, little classroom-based and pedagogy-oriented literature exists on the matter. In this paper, we address this research gap. First, we present a review of the literature that attempts to explain the challenging nature of mastering Russian grammatical cases from the cognitive linguistic, structural, and psycholinguistic perspectives. We then describe the general approaches to teaching and learning Russian cases found in the most commonly used Russian language textbooks in the United States. Finally, we discuss a pedagogical …


Costume Design And Social Status Visualization In Javanese Dance At Pura Mangkunegaran, Sriyadi -. Sriyadi, R.M. Pramutomo, Yoni Wulan Sari, Luh Elvina Dec 2024

Costume Design And Social Status Visualization In Javanese Dance At Pura Mangkunegaran, Sriyadi -. Sriyadi, R.M. Pramutomo, Yoni Wulan Sari, Luh Elvina

Paradigma: Jurnal Kajian Budaya

The design of costumes holds a crucial role in visualizing the social status of characters in Javanese dance. By employing symbolic systems, costume design conveys this status to the audience. This study investigates the relationship between costume design and the depiction of social status in Javanese dance at Pura Mangkunegaran. Utilizing a qualitative methodology with an ethnocoreological approach, the research draws on a literature review as its primary data source. This review involves analyzing various documents, photographs, and videos. The findings indicate that accessories and attributes within costume design are integral to the symbolic system that represents social status. As …


The Voice Of The Voiceless: Countering The Festival And Elevating Reyog Obyokan As Cultural Capital, Albert Tallapessy, Ikwan Setiawan Dec 2024

The Voice Of The Voiceless: Countering The Festival And Elevating Reyog Obyokan As Cultural Capital, Albert Tallapessy, Ikwan Setiawan

Paradigma: Jurnal Kajian Budaya

This article examines two performance models of Reyog Ponorogo: the festival model and the obyokan model. These two competing models represent differing perspectives on one side, the interests of the artists and the community, and on the other, the interests of the state. By applying cultural studies theories, particularly those of representation and hegemony, this study analyzes data collected through observations of Reyog performances at both festival and obyokan events, as well as interviews with artists and community members. The findings reveal that the obyokan model emphasizes an egalitarian spirit, allowing artists greater aesthetic freedom and providing the community with …


Archaeological Evidence From Gua Ladori, North Konawe, Southeast Sulawesi, M Sabri, R. Cecep Eka Permana Dec 2024

Archaeological Evidence From Gua Ladori, North Konawe, Southeast Sulawesi, M Sabri, R. Cecep Eka Permana

Paradigma: Jurnal Kajian Budaya

The presence of archaeological sites, specifically caves, in North Konawe Regency provides evidence of human habitation dating back to prehistoric times. Despite the challenges posed by difficult terrain and limited access, which hinder archaeological research, the Gua Ladori site in Bendewuta Village, Oheo District, North Konawe, is notable for its rich assemblage of artifacts. This study aims to identify the archaeological remains at Gua Ladori and assess their significance within the prehistoric context of Sulawesi, with a particular focus on North Konawe. The research methodology involves three stages: data collection, data processing and analysis, and conclusion drawing. The findings reveal …


European Soft Law Instruments For Sustainability Agreements – Presentation Of Procedural Issues, Critical Analysis And Recommendations For The President Of The Occp, Agata Zawłocka-Turno Dec 2024

European Soft Law Instruments For Sustainability Agreements – Presentation Of Procedural Issues, Critical Analysis And Recommendations For The President Of The Occp, Agata Zawłocka-Turno

internetowy Kwartalnik Antymonopolowy i Regulacyjny (internet Quarterly on Antitrust and Regulation)

The article focuses on the procedural aspects of soft law tools employed by competition authorities in Europe, in order to help businesses advance sustainable development. In response to global challenges, such as the climate crisis, some authorities have introduced guidelines and informal guidance to enable companies to undertake pro-environmental collaboration, without breaching competition laws. Examples include guidelines from the European Commission, as well as those from the UK, Dutch, and French competition authorities. The article examines how effective these tools are, their impact on legal certainty for businesses, and explores how a similar approach could be implemented by the Polish …


Nos Inhibition Sensitizes Metaplastic Breast Cancer To Pi3k Inhibition And Taxane Therapy Via C-Jun Repression, Tejaswini Reddy, Akshjot Puri, Liliana Guzman-Rojas, Christoforos Thomas, Wei Qian, Jianying Zhou, Hong Zhao, Bijan Mahboubi, Adrian Oo, Young-Jae Cho, Baek Kim, Jose Thaiparambil, Roberto Rosato, Karina Ortega Martinez, Maria Florencia Chervo, Camila Ayerbe, Noah Giese, David Wink, Stephen Lockett, Stephen Wong, Jeffrey Chang, Savitri Krishnamurthy, Clinton Yam, Stacy Moulder, Helen Piwnica-Worms, Funda Meric-Bernstam, Jenny Chang Dec 2024

Nos Inhibition Sensitizes Metaplastic Breast Cancer To Pi3k Inhibition And Taxane Therapy Via C-Jun Repression, Tejaswini Reddy, Akshjot Puri, Liliana Guzman-Rojas, Christoforos Thomas, Wei Qian, Jianying Zhou, Hong Zhao, Bijan Mahboubi, Adrian Oo, Young-Jae Cho, Baek Kim, Jose Thaiparambil, Roberto Rosato, Karina Ortega Martinez, Maria Florencia Chervo, Camila Ayerbe, Noah Giese, David Wink, Stephen Lockett, Stephen Wong, Jeffrey Chang, Savitri Krishnamurthy, Clinton Yam, Stacy Moulder, Helen Piwnica-Worms, Funda Meric-Bernstam, Jenny Chang

Faculty, Staff and Student Publications

Metaplastic breast cancer (MpBC) is a highly chemoresistant subtype of breast cancer with no standardized therapy options. A clinical study in anthracycline-refractory MpBC patients suggested that nitric oxide synthase (NOS) inhibitor NG-monomethyl-l-arginine (L-NMMA) may augment anti-tumor efficacy of taxane. We report that NOS blockade potentiated response of human MpBC cell lines and tumors to phosphoinositide 3-kinase (PI3K) inhibitor alpelisib and taxane. Mechanistically, NOS blockade leads to a decrease in the S-nitrosylation of c-Jun NH


Scheme For The Development Of Sharia-Compliant Financial Inclusion For Farmers On Dryland Area Through The Optimization Of Biological Assets, Kartika Nur Rakhman, Nur Fatwa Dec 2024

Scheme For The Development Of Sharia-Compliant Financial Inclusion For Farmers On Dryland Area Through The Optimization Of Biological Assets, Kartika Nur Rakhman, Nur Fatwa

Journal Of Middle East and Islamic Studies

Farmers in the Gunungkidul Regency are mostly categorized as impoverished. Resource constraints make it challenging for them to progress. One of the problems they face is the lack of capital for their businesses and daily needs. To meet these needs, they often resort to borrowing from loan sharks. This occurs partly due to the absence of assets they can use to access financing from Sharia-compliant financial institutions. This research aimed to assess the feasibility of biological assets, particularly teak trees (Tectona grandis), to be accepted as collateral in Sharia-compliant financing. Additionally, this study aimed to provide an alternative …


Metakaolin-Based Geopolymer Concrete; Synthesis, Development And Characterization, Heba Fouad Dec 2024

Metakaolin-Based Geopolymer Concrete; Synthesis, Development And Characterization, Heba Fouad

Theses and Dissertations

Geopolymers are rendered as an essential sustainable replacement to the widely used Ordinary Portland Cement (OPC) which causes immense carbon dioxide emissions, hence a detrimental impact on society’s health and the environment. Geopolymers are three-dimensional networks of polymerized tetrahedral silicate and aluminate in the form of Q4(4Al), Q4(3Al) and Q4(2Al) which act as the principal binding phase in concrete. Past research has reported the synthesis of geopolymers from different aluminosilicates precursors, their characterization, and their wide range properties. However, previous studies still have not properly investigated effective range of synthesis ratios for a particular source material, optimum curing regimes, short- …


Exploring Proteins Within The Coccolith Matrix, Craig J. Dedman, Nishant Chauhan, Alba González-Lanchas, Chloë Baldreki, Adam A. Dowle, Tony R. Larson, Renee B.Y. Lee, Rosalind E.M. Rickaby Dec 2024

Exploring Proteins Within The Coccolith Matrix, Craig J. Dedman, Nishant Chauhan, Alba González-Lanchas, Chloë Baldreki, Adam A. Dowle, Tony R. Larson, Renee B.Y. Lee, Rosalind E.M. Rickaby

School of Geography, Earth and Environmental Sciences

Coccolithophores comprise a major component of the oceanic carbon cycle. These unicellular algae produce ornate structures made of calcium carbonate, termed coccoliths, representing ~ 50% of calcite production in the open ocean. The exact molecular mechanisms which direct and control coccolith formation are unknown. In this study, we report on the presence and functional features of proteins within the coccoliths produced by a range of model coccolithophore species including: the globally abundant and well-studied Gephyrocapsa huxleyi (formerly Emiliania huxleyi) and related Gephyrocapsa oceanica, as well as the larger and more heavily calcified Coccolithus braarudii. Protein features were compared between species …