Direct Writing on Paper Substrate to Prepare Silver Electrode Structures for Flexible Sensors

With the rapid development of the electronics industry, electronic products based on silicon and glass substrates electronic products will gradually be unable to meet the rising demand. Flexibility, environmental protection, and low costs are important for the development of electronic products. In this study, an efficient and low-cost method for preparing silver electrode structures by direct writing on paper has been demonstrated. Based on this method, a flexible paper-based sensor was prepared. The liquid printing ink used mainly comprises a precursor liquid without pre-prepared nanomaterials. The precursor liquid is transparent with good fluidity. Simple direct writing technology was used to write on the paper substrate using the precursor ink. When the direct-writing paper substrate was subsequently heated, silver nanostructures precipitated from the precursor liquid ink onto the paper substrate. The effect of different temperatures on the formation of the silver nanostructures and the influence of different direct writing processes on the structures were studied. Finally, a paper-based flexible sensor was prepared for finger-bending signal detection. The method is simple to operate and low in cost and can be used for the preparation of environment-friendly paper-based devices.

Polymer Optical Waveguide Grating-Based Biosensor to Detect Effective Drug Concentrations of Ginkgolide A for Inhibition of PMVEC Apoptosis

In this work, we successfully developed a fluorinated cross-linked polymer Bragg waveguide grating-based optical biosensor to detect effective drug concentrations of ginkgolide A for the inhibition of pulmonary microvascular endothelial cell (PMVEC) apoptosis. Fluorinated photosensitive polymer SU-8 (FSU-8) as the sensing core layer and polymethyl methacrylate (PMMA) as the sensing window cladding were synthesized. The effective drug concentration range (5–10 µg/mL) of ginkgolide A for inhibition of PMVEC apoptosis was analyzed and obtained by pharmacological studies. The structure of the device was optimized to be designed and fabricated by direct UV writing technology. The properties of the biosensor were simulated with various refractive indices of different drug concentrations. The actual sensitivity of the biosensor was measured as 1606.2 nm/RIU. The resolution and detection limit were characterized as 0.05 nm and 3 × 10−5 RIU, respectively. The technique is suitable for safe and accurate detection of effective organic drug dosages of Chinese herbal ingredients.

Teaching Simple Present in Writing Through Short Story on Youtube To Accounting Students at University of Bina Sarana Informatika

<p><span lang="EN-US">This research discusses the use of short story on YouTube in teaching simple present tense to Accounting students. The development of technology has influenced in English teaching learning ways. There are some skills that should be mastered by the learners in learning English, they are listening, speaking, reading and writing. Technology can be used in all English skills, such as the use of YouTube in teaching writing. There are many short stories on YouTube that can be used as one of the media in teaching writing. Simple present is used to show the activity which is done repeatedly. It is also used to show about general truth or fact. It is chosen as the students, especially Accounting students, still have difficulties in implementing simple present in the sentence. The method used in this research was descriptive qualitative method and the participants of this research were the students from Accounting Department, 1st semester of University Bina Sarana Informatika. The results of the research are: (1) most students have understood about the pattern of the verb used in simple present tense; (2) most of them have known about using verbs or auxiliary verbs; and (3) some of them made mistakes of the writing of the verb and auxiliary verb.</span></p>

An enzyme-free capacitive glucose sensor based on dual-network glucose-responsive hydrogel and coplanar electrode

A physical capacitive sensor for glucose detection consisting of interdigital carbon electrodes (ICEs) fabricated by a direct laser writing technology and glucose-responsive hydrogel (DexG-Con A hydrogel) built by in situ UV curing.

Application of Interactive Methods in the Process of Teaching Archeology to Correspondence Students

Purpose. Having emerged about a hundred years ago, the correspondence form of higher education in our country has not yet lost its relevance. This form of education implies that students must largely learn on their own. However, it should be noted that there are professions, including teachers, where the role of a University teacher in the formation of a future specialist is great. The purpose of this article is to show the prospects of implementing interactive methods in the learning process of part-time students based on the example of teaching archeology. Results. The need to teach archeology as a science for future teachers is determined by the specific character of studying material sources, which implies certain requirements for the methodology of teaching such material in school. Therefore, it is necessary to acquaint future teachers with the features of archeology for further successful teaching at school, conducting educational activities, in the classroom with part-time students using DCTTRW (the development of critical thinking through reading and writing) technology. We should particularly note the work with students of the archaeological department of the Multidisciplinary Museum of NSPU. Conclusion. The experience of using interactive methods in the process of teaching archeology to part-time students at the pedagogical university has shown their high potential. Students receive an opportunity to learn particular technologies and training techniques, gain experience in their use. Interactive technologies contribute to the formation of two groups of competencies for part-time students: research and communication.

Words in Space and Time: Historical Atlas of Language Politics in Modern Central Europe

With forty-two extensively annotated maps, this atlas offers novel insights into the history and mechanics of how Central Europe’s languages have been made, unmade, and deployed for political action. The innovative combination of linguistics, history, and cartography makes a wealth of hard-to-reach knowledge readily available to both specialist and general readers. It combines information on languages, dialects, alphabets, religions, mass violence, or migrations over an extended period of time. The story first focuses on Central Europe’s dialect continua, the emergence of states, and the spread of writing technology from the tenth century onward. Most maps concentrate on the last two centuries. The main storyline opens with the emergence of the Western European concept of the nation, in accord with which the ethnolinguistic nation-states of Italy and Germany were founded. In the Central European view, a “proper” nation is none other than the speech community of a single language. The Atlas aspires to help users make the intellectual leap of perceiving languages as products of human history and part of culture. Like states, nations, universities, towns, associations, art, beauty, religions, injustice, or atheism—languages are artefacts invented and shaped by individuals and their groups.