1,722,507 research outputs found

    M270 DynaBeads Streptavidin with biotinylated BSA Droplets in Dual Phase Lab-in-Tubing Microfluidics

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    Droplets consisting of Dynabeads M-270 Streptavidin (Invitrogen) and 10 mg of VECTB2007 biotinylated bovine serum albumin (BSA) (Vector Laboratories) at varying concentrations (Control, 2.5µg/mL, 5µg/mL, 10µg/mL, 20µg/mL, 40µg/mL) in dual-phase microfluidics at 50µL/min flowrate. Non-biotinylated BSA in PBS buffer is used as the negative control

    ARCHITECTED MATERIALS FOR FUNCTIONAL PROPERTIES

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    Questa tesi analizza l'influenza della morfologia dei nanomateriali e dell'ingegneria interfacciale sulla dinamica del trasferimento di carica in sistemi eterostrutturati. Lo studio inizia con una valutazione sistematica di nanoparticelle di TiO2 e di array di nanotubi di TiO2 (TNTAs), rivelando che i TNTAs in fase anatase con un'altezza ottimizzata di 8 μm mostrano un'attività superiore nella reazione di evoluzione dell'idrogeno (HER), grazie a percorsi di trasporto di carica migliorati e a proprietà elettroniche favorevoli. Successivamente, è stato esplorato il ruolo della chimica superficiale nel controllo del trasferimento di carica interfacciale utilizzando nanocristalli di perovskite CsPbBr3 (PNCs) con lunghezze di catena dei leganti controllate. I leganti a catena corta hanno facilitato un trasferimento elettronico più efficiente verso le nanostrutture di TiO2, con gli array di nanotubi che hanno superato le pellicole di nanoparticelle nelle configurazioni allo stato solido. Le perovskiti drogati con Mn hanno ulteriormente evidenziato il comportamento di quenching dipendente dalla morfologia del TiO2, sebbene approfondimenti più dettagliati sulla dinamica dei portatori di carica richiedano tecniche spettroscopiche avanzate. Infine, i quantum dots core–shell CdTe/CdSe sono stati interfaccati con morfologie di TiO2, rivelando comportamenti contrastanti tra le fasi in soluzione e in film sottile. In soluzione, le nanoparticelle di TiO2 hanno promosso un quenching più marcato, mentre nei film sottili, i TNTAs hanno consentito un'estrazione di carica più efficiente e un trasporto direzionale, portando a una degradazione fotocatalitica efficace del colorante Rhodamine B in soluzione acquosa. Complessivamente, questo lavoro dimostra che l'ottimizzazione della morfologia, della fase e della chimica superficiale dei nanomateriali è fondamentale per migliorare i processi di trasferimento di carica e l'attività fotocatalitica. Le conoscenze acquisite offrono una strada per la progettazione di nanostrutture ibride ad alte prestazioni per la generazione fotocatalitica di idrogeno e per applicazioni optoelettroniche correlate.This thesis investigates the influence of nanomaterial morphology and interfacial engineering on charge transfer dynamics in a heterostructure system. The study begins with a systematic evaluation of TiO2 nanoparticles and nanotube arrays (TNTAs), revealing that anatase-phase TNTAs with an optimized height of 8 μm exhibit superior hydrogen evolution reaction (HER) activity, driven by enhanced charge transport pathways and suitable morphology. Subsequently, the role of surface chemistry in governing interfacial charge transfer was explored using CsPbBr3 perovskite nanocrystals (PNCs) with controlled ligand chain lengths. Short-chain ligands facilitated more effective electron transfer to TiO2 nanostructures, with nanotube arrays outperforming nanoparticle films in solid-state configurations. Mn-doped perovskites further highlighted the morphology-dependent quenching behaviour of TiO2, though deeper insights into charge carrier dynamics require advanced spectroscopic techniques. Finally, CdTe/CdSe core–shell quantum dots were interfaced with TiO2 morphologies, revealing contrasting behaviours between solution and thin-film phases. In solution, TiO2 nanoparticles promoted stronger quenching, while in thin films, TNTAs enabled more efficient charge extraction and directional transport leading to efficient photocatalytic degradation of aqueous Rhodamine B dye. Collectively, this work demonstrates that fine-tuning nanomaterial morphology, phase, and surface chemistry is critical to optimizing charge transfer processes and photocatalytic activity. The insights gained may provide a pathway for designing high-performance, hybrid nanostructures for photocatalysis and other optoelectronic applications

    Qari Mesir yang disegani: Sheikh Abdul Basit Muhammad Abdul Samad / Nurhafizah Ahmad and Fadzilawani Astifar Alias

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    Mesir mempunyai ramai qari terkenal yang memberi sumbangan besar kepada dunia penyebaran ilmu al-Quran. Generasi al Quran yang muncul di Mesir adalah kerana persekitaran yang kondusif untuk mempelajari dan mendalami ilmu al Quran. Terdapat ramai qari Mesir yang terkenal, antaranya ialah Sheikh Muhammad Siddiq Al Minshawi, Sheikh Mahmud Khalil Al Husari dan Sheikh Abdul Basit Muhammad Abdul Samad. Mari kita kenali qari Mesir yang telah memberi sumbangan besar dalam ilmu al Quran, iaitu Sheikh Abdul Basit Muhammad Abdul Samad

    FBR_practicioner_implications – Supplemental material for Firm Acquisitions by Family Firms: A Mixed Gamble Approach

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    Supplemental material, FBR_practicioner_implications for Firm Acquisitions by Family Firms: A Mixed Gamble Approach by Katrin Hussinger and Abdul-Basit Issah in Family Business Review</p

    FBR_research_questions – Supplemental material for Firm Acquisitions by Family Firms: A Mixed Gamble Approach

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    Supplemental material, FBR_research_questions for Firm Acquisitions by Family Firms: A Mixed Gamble Approach by Katrin Hussinger and Abdul-Basit Issah in Family Business Review</p

    Pengaruh Beban Pajak Penghasilan Atas Bunga Deposito Berjangka Dan Tingkat Bunga Deposito Berjangka Terhadap Return On Asset (Roa)

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    Abdul Basit Baehaqi judul skripsi Peugaruh Behan Pajak Penghasifan Atas Bonga Deposito Berjangka dan Tingkat Bonga Deposito Berjangka Temadap Return On Asset (Studi Empiris pada Perusahaan Perhankan di Bmsa Efek Indonesia Tahon 2003-2007) Skripsi, strata satu (SI) program studi Akuntansi pada Faknltas Ekonomi dan Ilmu Sosial U1N Jakarta, 2008. Tujuan dari penelitian ini adalah untuk mengetahui peng,iruh individual dan pengaruh simultan dari behan pajak peughasilan atas harga deposito berjaugka dau tingkat hunga deposito berjangka terhadap return on asset

    Body Measurements and Body Condition Scoring as Basis for Estimation of Live Weight in Nili-Ravi Buffaloes

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    Implementation of management recommendations for the Nili-Ravi buffalo in small-and medium scale commercial dairy production systems in Pakistan is hampered by difficulties to determine body weight (BW) of the animal. A workable and reliable method of predicting BW of this breed by using body measurements and body condition scoring (BCS) was therefore explored. Nili-Ravi buffaloes (n=211) were divided into three age groups (1-3 years = G1; &gt;3-8 years = G2; &gt;8 years = G3). Animals were weighed on a mechanical scale and their heart girth (HG), body length (BL) and shoulder height (SH) were measured. In addition, BCS was performed using a 5 point scale. Recorded data were subjected to simple and multiple linear regression analysis. The overall mean values of BW, HG, BL, SH and BCS were 359 +/- 160.9 kg, 170 +/- 30.1 cm, 130 +/- 19.2 cm, 125 +/- 14.5 cm and 3.8 +/- 0.77. With correlation coefficients (r) of 0.97 (HG), 0.94 (BL), 0.93 (SH) and 0.43 (BCS), the relationship between the individual independent variable with BW were significant (P&lt;0.01) in all cases. The multiple linear regression between BW and HG, BL and BCS was highly significant (P&lt;0.001) for each of the three groups (G1: r(2) = 0.95, G2: r(2) = 0.86, G3: r(2) = 0.83). Buffalo farmers who lack mechanical or electronic scales to regularly determine BW of their animals can thus combine simple morphometric body measurements (HG, BL) with BCS or just rely on HG in order to calculate feed requirements, monitor growth, determine breeding age, marketing weight and estimate the animals' cash value. (C) 2013 PVJ. All rights reserve

    Rheological Characterisation of the Strain-Hardening Limestone Calcined Clay Cement (SHLC3) Composites for Shot-Creting

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    Strain-hardening cement-based composites (SHCC) are attractive candidates to strengthen concrete elements under exceptional loadings, owing to their elevated dissipation capability. For advanced application technologies, like, e.g. shotcrete, the deterministic control of the rheological parameters is necessary for successfully handling the material in the fresh state, especially when highly reactive binder systems such as limestone calcined clay (LC3) are adopted. In this article, an advanced rheological technique, namely large-amplitude oscillation shear (LAOS), is adopted to characterise the intrinsic rheological properties of strain-hardening limestone calcined clay-based (SHLC3) composite, including ultra-high molecular weight polyethylene (UHMWPE) fibres. To evaluate the efficiency of the LAOS technique, the fibre-reinforced composite and the corresponding mortar (i.e. without fibres) are investigated in terms of shear stress, shear strain, storage and loss moduli, complex viscosity at the critical and the cross-over strain, as these parameters effectively govern the technological processes at the fresh state of shotcrete, like pumping and spraying and the quality of adhesion with the substrate
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