Synthesis and characterization of iron oxide nanomaterials using Horizontal Vapor Phase Crystal (HVPC) growth technique for glucose sensing application

This study investigated the capability of the grown Iron Oxide nanoparticles (NPs) for faster glucose detection. Horizontal Vapor Phase Crystal (HVPC) Growth Technique was utilized in the synthesis of Iron Oxide NPs from 99.99% purity Magnetite Iron Oxide (Sigma- Aldrich) bulk material. Different parameters were varied such as the growth environment (without external magnetic field, with external magnetic field), size of the sealed tube (10cm, 12cm, 14cm), growth temperature (10000 C, 11000C, 12000C) and dwell time (8hr, 9 hr, 10 hr). Scanning electron Microscope (SEM) and Energy Dispersive X-ray (EDX) confirmed that the Iron Oxide nanowires and almost uniform size nanoparticles approximately 50nm in diameter were formed utilizing the optimum parameters such as 1000oC growth temperature, 8 hours dwell time, 12 cm size of sealed tube and the presence of external magnetic field in the growth environment. The application of the external magnetic field enhanced the Superparamagnetic (SPM) property of the grown Iron Oxide NPs above the Curie temperature. The net magnetic moment determined the direction of magnetic force of attraction present in the grown NPs. Particles to particles- chain assembly were observed in which some NPs were interconnected forming nanowires/ agglomerated nanowires in the vapor - solid phase nucleation. The magnetic field also lessened the effect of gravity which aligned the formation along the field. Glucose oxidase (GOx) and chitosan have been immobilized by physical adsorption onto electrode with Iron Oxide NPs. Amperometric electrochemical circuit setup was used to determine the glucose sensing ability of the modified electrode with iron oxide NPs while varying some factors such as glucose concentration, applied DC potential and electrolyte solution. At α = 0.05, since F(27.52 54.48) \u3e FC(3.29 4.49), two- way ANOVA reveals that there was a significant difference between the current responses while varying the electrolytes for different modified electrodes. Among the modified electrodes, G/FeO/CH/GOx and SS/FeO/GOx showed highest sensitivity and longest limit of detection correspondingly. The correlation coefficients (ave. r = 0.74; 0.99) indicates that there was a linear relationship between the response current versus varying concentrations and applied DC potential. Iron Oxide NPs integrated in modified electrode in an amperometric- electrochemical circuit also showed low detection limit (0.008mM), fast response time (Iron Oxide NPs magnetic property was considered in the modification of the electrode for Amperometric- Electrochemical circuit for glucose sensing application since the magnetic field reinforces the attraction of the particles to the electrodes surface

LET as predictor of teaching performance: The case of PNU graduates across disciplines (2007-2010)

This study discusses the relationship between the performance in the Licensure Examination for Teachers (LET) taken by PNU graduates and their teaching performance. The LET scores, obtained from PRC, and teaching performance evaluation scores given by the Head, Peer and Self, were correlated. The results indicate that there is a negligible link between the scores in the LET and the teaching performance of the respondents. However, positive significant correlations, although weak, are found in the case of CLLL, COS, and 2007 examinees. The “Very Satisfactory” or “Outstanding” teaching performance evaluation rating earned by the respondents indicates the knowledge, skills, and philosophies learned during the pre‐service training. Finally, this research posits that an emerging paradigm of teaching performance must be progressively developed

The major genetic determinants of HIV-1 control affect HLA class I peptide presentation.

Infectious and inflammatory diseases have repeatedly shown strong genetic associations within the major histocompatibility complex (MHC); however, the basis for these associations remains elusive. To define host genetic effects on the outcome of a chronic viral infection, we performed genome-wide association analysis in a multiethnic cohort of HIV-1 controllers and progressors, and we analyzed the effects of individual amino acids within the classical human leukocyte antigen (HLA) proteins. We identified >300 genome-wide significant single-nucleotide polymorphisms (SNPs) within the MHC and none elsewhere. Specific amino acids in the HLA-B peptide binding groove, as well as an independent HLA-C effect, explain the SNP associations and reconcile both protective and risk HLA alleles. These results implicate the nature of the HLA-viral peptide interaction as the major factor modulating durable control of HIV infection

Daratumumab-based treatment for immunoglobulin light-chain amyloidosis

none269siBACKGROUND Systemic immunoglobulin light-chain (AL) amyloidosis is characterized by deposition of amyloid fibrils of light chains produced by clonal CD38+ plasma cells. Daratumumab, a human CD38-targeting antibody, may improve outcomes for this disease. METHODS We randomly assigned patients with newly diagnosed AL amyloidosis to receive six cycles of bortezomib, cyclophosphamide, and dexamethasone either alone (control group) or with subcutaneous daratumumab followed by single-agent daratumumab every 4 weeks for up to 24 cycles (daratumumab group). The primary end point was a hematologic complete response. RESULTS A total of 388 patients underwent randomization. The median follow-up was 11.4 months. The percentage of patients who had a hematologic complete response was significantly higher in the daratumumab group than in the control group (53.3% vs. 18.1%) (relative risk ratio, 2.9; 95% confidence interval [CI], 2.1 to 4.1; P<0.001). Survival free from major organ deterioration or hematologic progression favored the daratumumab group (hazard ratio for major organ deterioration, hematologic progression, or death, 0.58; 95% CI, 0.36 to 0.93; P=0.02). At 6 months, more cardiac and renal responses occurred in the daratumumab group than in the control group (41.5% vs. 22.2% and 53.0% vs. 23.9%, respectively). The four most common grade 3 or 4 adverse events were lymphopenia (13.0% in the daratumumab group and 10.1% in the control group), pneumonia (7.8% and 4.3%, respectively), cardiac failure (6.2% and 4.8%), and diarrhea (5.7% and 3.7%). Systemic administration-related reactions to daratumumab occurred in 7.3% of the patients. A total of 56 patients died (27 in the daratumumab group and 29 in the control group), most due to amyloidosis-related cardiomyopathy. CONCLUSIONS Among patients with newly diagnosed AL amyloidosis, the addition of daratumumab to bortezomib, cyclophosphamide, and dexamethasone was associated with higher frequencies of hematologic complete response and survival free from major organ deterioration or hematologic progression.noneKastritis E.; Palladini G.; Minnema M.C.; Wechalekar A.D.; Jaccard A.; Lee H.C.; Sanchorawala V.; Gibbs S.; Mollee P.; Venner C.P.; Lu J.; Schonland S.; Gatt M.E.; Suzuki K.; Kim K.; Cibeira M.T.; Beksac M.; Libby E.; Valent J.; Hungria V.; Wong S.W.; Rosenzweig M.; Bumma N.; Huart A.; Dimopoulos M.A.; Bhutani D.; Waxman A.J.; Goodman S.A.; Zonder J.A.; Lam S.; Song K.; Hansen T.; Manier S.; Roeloffzen W.; Jamroziak K.; Kwok F.; Shimazaki C.; Kim J.-S.; Crusoe E.; Ahmadi T.; Tran N.; Qin X.; Vasey S.Y.; Tromp B.; Schecter J.M.; Weiss B.M.; Zhuang S.H.; Vermeulen J.; Merlini G.; Comenzo R.L., Bradley Augustson, Fiona Kwok, Peter Mollee, Simon Gibbs, Chantal Doyen, Greet Bries, Isabelle Vande Broek, Ka Lung Wu, Koen Theunissen, Koen Van Eygen, Michel Delforge, Nathalie Meuleman, Philip Vlummens, Angelo Maiolino, Breno Moreno de Gusmão, Carlos Eduardo Miguel, Edvan Crusoe, Fernanda Moura, Fernanda Seguro, Jandey Bigonha, Juliane Musacchio, Karla Zanella, Laura Garcia, Marcelo Eduardo Zanella Capra, Reijane Alves de Assis, Rosane Bittencourt, Vania Hungria, Walter Braga, Wolney Barreto, Christopher Venner, Donna Reece, Emilie Lemieux-Blanchard, Kevin Song, Michael Sebag, Selay Lam, Victor Zepeda, Haitao Zhang, Jianda Hu, Jin Lu, Juan Li, Songfu Jiang, Ting Niu, Wenming Chen, Xiaonong Chen, Zhen Cai, Zhou Fude, Maja Oelholm Vase, Morten Salomo, Niels Abildgaard, Alain Fuzibet, Anne-Marie Stoppa, Arnaud Jaccard, Bertrand Arnulf, Bruno Moulin, Bruno Royer, David Ghez, Denis Caillot, Dominique Chauveau, Franck Bridoux, Lauriane Clement-Filliatre, Lionel Karlin, Lotfi Benboubker, Mamoun Dib, Margaret Macro, Mohamad Mohty, Olivier Decaux, Olivier Hermine, Olivier Tournilhac, Philippe Moreau, Salomon Manier, Sylvain Choquet, Véronique Dorvaux, Alexander Carpinteiro, Axel Nogai, Britta Besemer, Christoph Roellig, Roland Fenk, Stefan Knop, Stefan Schönland, Timon Hansen, Argiris Symeonidis, Efstathios Kastritis, Gabor Mikala, Tamás Masszi, Zsolt Nagy, Celia Suriu, Hila Magen, Iuliana Vaxman, Lev Shvidel, Meir Preis, Moshe Gatt, Noa Lavi, Osnat Jarchowsky, Tamar Tadmor, Yael Cohen, Angelo Vacca, Giovanni Palladini, Mario Boccadoro, Maurizio Martelli, Maurizio Musso, Michele Cavo, Chihiro Shimazaki, Hiroyuki Takamatsu, Kazutaka Sunami, Kenshi Suzuki, Nagaaki Katoh, Shinsuke Iida, Takayuki Ikezoe, Tomoaki Fujisaki, Yuta Katayama, Chang Ki Min, Ho-Jin Shin, Jin Seok Kim, Jung Yong Hong, Ki Hyun Kim, Sung-Soo Yoon, Aline Ramirez, Alvaro Cabrera, Christian Ramos, David Gomez Almaguer, Deborah Martinez, Guillermo Ruiz, Helen Dayani Caballero, Juan Antonio Flores Jimenez, Annemiek Broijl, Laurens Nieuwenhuizen, Monique Minnema, Paula Ypma, Wilfried Roeloffzen, Dominik Dytfeld, Grzegorz Charlinski, Grzegorz Helbig, Krzysztof Jamroziak, Sebastian Grosicki, Wieslaw Jedrzejczak, Albert Oriol Rocafiguera, Elham Askari, Fernando Escalante Barrigon, Isabel Krsnik Castello, Javier De la Rubia Comos, Jesus Martin Sanchez, Joaquin Martinez Lopez, Jose Angel Hernandez Rivas, Luis Felipe Casado Montero, Maria Jesus Blanchard Rodriguez, Maria Teresa Cibeira Lopez, Maria Victoria Mateos Manteca, Marta Sonia Gonzalez Perez, Mercedes Gironella Mesa, Rafael Rios Tamayo, Ramon Lecumberri Villamediana, Ricarda Garcia Sanchez, Sunil Lakhwani, Yolanda Gonzalez, Hareth Nahi, Kristina Carlsson, Markus Hansson, Ulf-Henrik Mellqvist, Ali Unal, Burhan Ferhanoglu, Hayri Ozsan, Levent Undar, Mehmet Turgut, Mehmet Yilmaz, Meral Beksac, Muhlis Cem Ar, Muzaffer Demir, Sevgi Besisik, Ashutosh Wechalekar, Jamie Cavenagh, Jim Cavet, Mark Cook, Rachel Hall, Adam Waxman, Anuj Mahindra, Cesar Rodriguez Valdes, Christine Ye, Craig Reeder, Daphne Friedman, David Siegel, Divaya Bhutani, Edward Libby, Eva Medvedova, Frank Passero, Giada Bianchi, Giampaolo Talamo, Guido Tricot, Hans Lee, Heather Landau, Jan Moreb, Jason Valent, Jeffrey Matous, Jeffrey A Zonder, Jesus Berdeja, Jonathan Kaufman, Keith Stockerl-Goldstein, Keren Osman, Ketan Doshi, Kevin Barton, Larry Anderson, Manisha Bhutani, Mehmet Kocoglu, Michael Rosenzweig, Michael Schuster, Michaela Liedtke, Morie Gertz, Naresh Bumma, Natalie Callander, Raymond Comenzo, Robert Vescio, Roger Pearse, Sandy W Wong, Stacey A Goodman, Stefano Tarantolo, Taimur Sher, Tibor Kovacsovics, Tomer Mark, Vaishali Sanchorawala, William BensingerKastritis E.; Palladini G.; Minnema M.C.; Wechalekar A.D.; Jaccard A.; Lee H.C.; Sanchorawala V.; Gibbs S.; Mollee P.; Venner C.P.; Lu J.; Schonland S.; Gatt M.E.; Suzuki K.; Kim K.; Cibeira M.T.; Beksac M.; Libby E.; Valent J.; Hungria V.; Wong S.W.; Rosenzweig M.; Bumma N.; Huart A.; Dimopoulos M.A.; Bhutani D.; Waxman A.J.; Goodman S.A.; Zonder J.A.; Lam S.; Song K.; Hansen T.; Manier S.; Roeloffzen W.; Jamroziak K.; Kwok F.; Shimazaki C.; Kim J.-S.; Crusoe E.; Ahmadi T.; Tran N.; Qin X.; Vasey S.Y.; Tromp B.; Schecter J.M.; Weiss B.M.; Zhuang S.H.; Vermeulen J.; Merlini G.; Comenzo R.L., Bradley Augustson, Fiona Kwok, Peter Mollee, Simon Gibbs, Chantal Doyen, Greet Bries, Isabelle Vande Broek, Ka Lung Wu, Koen Theunissen, Koen Van Eygen, Michel Delforge, Nathalie Meuleman, Philip Vlummens, Angelo Maiolino, Breno Moreno de Gusmão, Carlos Eduardo Miguel, Edvan Crusoe, Fernanda Moura, Fernanda Seguro, Jandey Bigonha, Juliane Musacchio, Karla Zanella, Laura Garcia, Marcelo Eduardo Zanella Capra, Reijane Alves de Assis, Rosane Bittencourt, Vania Hungria, Walter Braga, Wolney Barreto, Christopher Venner, Donna Reece, Emilie Lemieux-Blanchard, Kevin Song, Michael Sebag, Selay Lam, Victor Zepeda, Haitao Zhang, Jianda Hu, Jin Lu, Juan Li, Songfu Jiang, Ting Niu, Wenming Chen, Xiaonong Chen, Zhen Cai, Zhou Fude, Maja Oelholm Vase, Morten Salomo, Niels Abildgaard, Alain Fuzibet, Anne-Marie Stoppa, Arnaud Jaccard, Bertrand Arnulf, Bruno Moulin, Bruno Royer, David Ghez, Denis Caillot, Dominique Chauveau, Franck Bridoux, Lauriane Clement-Filliatre, Lionel Karlin, Lotfi Benboubker, Mamoun Dib, Margaret Macro, Mohamad Mohty, Olivier Decaux, Olivier Hermine, Olivier Tournilhac, Philippe Moreau, Salomon Manier, Sylvain Choquet, Véronique Dorvaux, Alexander Carpinteiro, Axel Nogai, Britta Besemer, Christoph Roellig, Roland Fenk, Stefan Knop, Stefan Schönland, Timon Hansen, Argiris Symeonidis, Efstathios Kastritis, Gabor Mikala, Tamás Masszi, Zsolt Nagy, Celia Suriu, Hila Magen, Iuliana Vaxman, Lev Shvidel, Meir Preis, Moshe Gatt, Noa Lavi, Osnat Jarchowsky, Tamar Tadmor, Yael Cohen, Angelo Vacca, Giovanni Palladini, Mario Boccadoro, Maurizio Martelli, Maurizio Musso, Michele Cavo, Chihiro Shimazaki, Hiroyuki Takamatsu, Kazutaka Sunami, Kenshi Suzuki, Nagaaki Katoh, Shinsuke Iida, Takayuki Ikezoe, Tomoaki Fujisaki, Yuta Katayama, Chang Ki Min, Ho-Jin Shin, Jin Seok Kim, Jung Yong Hong, Ki Hyun Kim, Sung-Soo Yoon, Aline Ramirez, Alvaro Cabrera, Christian Ramos, David Gomez Almaguer, Deborah Martinez, Guillermo Ruiz, Helen Dayani Caballero, Juan Antonio Flores Jimenez, Annemiek Broijl, Laurens Nieuwenhuizen, Monique Minnema, Paula Ypma, Wilfried Roeloffzen, Dominik Dytfeld, Grzegorz Charlinski, Grzegorz Helbig, Krzysztof Jamroziak, Sebastian Grosicki, Wieslaw Jedrzejczak, Albert Oriol Rocafiguera, Elham Askari, Fernando Escalante Barrigon, Isabel Krsnik Castello, Javier De la Rubia Comos, Jesus Martin Sanchez, Joaquin Martinez Lopez, Jose Angel Hernandez Rivas, Luis Felipe Casado Montero, Maria Jesus Blanchard Rodriguez, Maria Teresa Cibeira Lopez, Maria Victoria Mateos Manteca, Marta Sonia Gonzalez Perez, Mercedes Gironella Mesa, Rafael Rios Tamayo, Ramon Lecumberri Villamediana, Ricarda Garcia Sanchez, Sunil Lakhwani, Yolanda Gonzalez, Hareth Nahi, Kristina Carlsson, Markus Hansson, Ulf-Henrik Mellqvist, Ali Unal, Burhan Ferhanoglu, Hayri Ozsan, Levent Undar, Mehmet Turgut, Mehmet Yilmaz, Meral Beksac, Muhlis Cem Ar, Muzaffer Demir, Sevgi Besisik, Ashutosh Wechalekar, Jamie Cavenagh, Jim Cavet, Mark Cook, Rachel Hall, Adam Waxman, Anuj Mahindra, Cesar Rodriguez Valdes, Christine Ye, Craig Reeder, Daphne Friedman, David Siegel, Divaya Bhutani, Edward Libby, Eva Medvedova, Frank Passero, Giada Bianchi, Giampaolo Talamo, Guido Tricot, Hans Lee, Heather Landau, Jan Moreb, Jason Valent, Jeffrey Matous, Jeffrey A Zonder, Jesus Berdeja, Jonathan Kaufman, Keith Stockerl-Goldstein, Keren Osman, Ketan Doshi, Kevin Barton, Larry Anderson, Manisha Bhutani, Mehmet Kocoglu, Michael Rosenzweig, Michael Schuster, Michaela Liedtke, Morie Gertz, Naresh Bumma, Natalie Callander, Raymond Comenzo, Robert Vescio, Roger Pearse, Sandy W Wong, Stacey A Goodman, Stefano Tarantolo, Taimur Sher, Tibor Kovacsovics, Tomer Mark, Vaishali Sanchorawala, William Bensinge