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治癌良「芝」—探討樟芝萃取物對口腔癌幹細胞的影響

研究旨在檢測牛樟芝菌絲萃取物4-Acetylantroquinonol B和Antrodin C對口腔癌幹細胞的影響。過去研究發現細胞膜蛋白CD44的表現與癌幹性有密切關係,因此本實驗著重於追蹤CD44的表現情況。透過3D懸浮培養獲得腫瘤球來擴增癌幹細胞群並用流式細胞儀分析。隨著兩種牛樟芝萃取物的濃度增加,CD44表現量下降,顯示此二化合物可能可以抑制其表現。實驗顯示牛樟芝萃取物不僅抑制癌幹細胞的存活率,且在低濃度下顯著抑制成球效率,還能促進癌幹細胞的凋亡。研究結果說明牛樟芝萃取物對癌幹細胞有影響,而這個發現可能可以提供潛在的治療靶點,有益未來口腔癌治療發展。

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Evaluating the Impact of the AI-Powered Interactive Journal “I Am Great Because of Me” on Reducing Impostor Syndrome Among High Performing Students

Impostor Syndrome, a psychological phenomenon where individuals doubt their abilities despite evident achievements, can hinder personal and academic development. This study aims to evaluate the effectiveness of the interactive journal “I am Great Because of Me”, integrated with artificial intelligence (AI), in addressing Impostor Syndrome among high-performing students. The journal features innovative tools such as the Clance Impostor Phenomenon Scale (CIPS) test accessible via QR code, self-acknowledgement pages, and virtual consultations powered by AI chatbots. These elements aim to support self-reflection, provide real-time diagnostics, and deliver actionable recommendations for users. The ADDIE model was employed for the journal's development, incorporating feedback from experts and users. Likert scales and Cohen’s D analysis were used to evaluate satisfaction, usability, and impact. Results showed that 90.1% of students expressed high satisfaction with the journal’s accessibility, interactivity, and capacity to enhance self-awareness and motivation. A pre-test and post-test conducted on the intervention group revealed a significant reduction in Impostor Syndrome by 42.5%, with an effect size of 2.84, categorized as "very large." Features such as the self-acknowledgement worksheets helped students recognize their strengths, while AI consultations offered additional psychological support. Expert validation emphasized the journal’s clarity, relevance, and objectivity, noting the absence of bias in AI-driven suggestions. The journal was praised for its accurate content, ease of use, interactivity, and the protection of user data, ensuring a safe and private environment for self-development. Students found the journal beneficial not only for addressing Impostor Syndrome but also for fostering personal growth and self-confidence. This research demonstrates the potential of combining psychological theories with AI-driven tools in education. The journal “I am Great Because of Me” effectively aids students in overcoming Impostor Syndrome and improving self-perception. It serves as a scalable solution for schools and individuals aiming to tackle similar psychological challenges. Future studies are encouraged to explore its application in broader contexts to maximize its impact.

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沙波紋與新月丘—從地球到火星

本研究旨在探究風成沙紋的型態和其移動速度及新月形沙丘的演化過程。利用吹出式風洞建立穩定且單一風向的風場,並運用不同粒徑的石英沙,以研究不同情況下沙紋和沙丘的變化。研究發現,風成沙紋的波長變化不僅受到風速、粒徑等特性的影響,還可能受到波峰後渦流長度的影響。另外觀察沙紋移動速度的變化後,可以明顯的發現與風速有高度正相關,亦討論能量的變化,並試圖建立風速與移動速度的轉換模型。在新月形沙丘演化過程的模擬中,我們歸納出三個主要時期:延伸期、崩落期和消逝期。我們也針對這些結果進行質性分析,透過觀察與討論,進一步了解沙紋與沙丘之變化過程與形成條件。最後我們比較了火星橫向風成脊(TAR)的形狀、動力及分布差異,推論其可能成因,希望進一步探究行星地表形貌的形成和演化過程。

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Synthesis of fluconazole analogues with focusing on resistant strains Candida

Fungal infections, particularly those caused by resistant strains like Candida auris and Candida glabrata, pose a significant threat to global health. The widespread use of azole antifungals, such as fluconazole, has driven the emergence of multidrug-resistant strains, undermining the efficacy of existing treatments. These challenges necessitate the development of novel antifungal agents with enhanced activity and reduced resistance profiles. To address resistance mechanisms, we designed and synthesized hybrid molecules combining triazole and thiazolidine-2,4-dione (TZD) pharmacophores. This strategy leverages dual mechanisms of action: inhibiting fungal CYP51, a key enzyme in ergosterol biosynthesis, and disrupting fungal cell wall integrity. The structural versatility of hybrid molecules allows for targeted modifications to enhance antifungal potency, binding specificity, and pharmacokinetics. Using a stepwise synthetic approach, triazole-containing piperazine derivatives were first prepared and coupled with TZD-based carboxylic acids via optimized condensation reactions. The structures of the synthesized compounds were confirmed through advanced spectroscopic methods, including 1D/2D NMR and high-resolution mass spectrometry. The antifungal activity of these hybrids was evaluated in vitro against clinical and reference strains of Candida spp. and Aspergillus fumigatus. Among the synthesized compounds, 6a demonstrated notable activity against Candida parapsilosis (MIC 0.06 μg/mL), comparable to voriconazole. Compound 4b exhibited moderate activity against C. parapsilosis (MIC 1–2 μg/mL) and A. fumigatus (MIC 8 μg/mL). However, most compounds showed limited efficacy against highly resistant strains such as C. albicans 8R and C. krusei. This study highlights the potential of hybrid triazole-TZD molecules in overcoming resistance and improving antifungal efficacy. While promising, further optimization is required to broaden the spectrum of activity and enhance efficacy against multidrug-resistant pathogens. These findings contribute to the growing field of antifungal drug development, emphasizing hybrid approaches as a viable solution for combating fungal resistance.

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Plantastic Pods: The Grow Stick Rooting Revolution for Seeds & Cuttings

Cultivating plants from seeds or cuttings is a fundamental aspect of gardening and agriculture. While traditional methods have been practiced for centuries, there is a persistent need for innovative and efficient approaches to enhance plant growth and development. This section explores the challenges associated with traditional propagation methods and examines potential solutions offered by emerging technologies and materials. Plant propagation is necessary to allow efficient multiplication and distribution of desirable plant varieties (Sorensen & Garland, 2024). Plant propagation is the process of creating new plants. There are two primary methods of propagation: sexual and asexual. .Sexual propagation involves the union of pollen and egg, drawing genetic material from two parent plants to create a new, genetically diverse offspring. This process utilizes the floral parts of a plant. .Asexual propagation, on the other hand, involves taking a part of a single parent plant and inducing it to regenerate into a new plant. The resulting offspring is genetically identical to its parent. This method utilises the vegetative parts of a plant, such as stems, roots, or leaves. One emerging technology that has garnered attention in this field is the use of cocopeat, a sustainable growing medium derived from coconut husks (Pane et al. 2021). Cocopeat has been extensively studied as a potential alternative to peat moss in plant propagation (Gericke, 1940). It offers a favourable balance between air porosity and water holding capacity, promoting root development and nutrient uptake (Kalaivani and Jawaharlal, 2019). Furthermore, cocopeat is a renewable and environmentally-friendly resource, making it an attractive option for sustainable seedling cultivation. Research has shown that the use of cocopeat as a growing medium can enhance the growth of both vegetables and various ornamental plants, such as Impatiens. The biostimulant effect of the Trichoderma atroviride fungus, which can readily colonize coir, has been observed to increase aboveground biomass, flower production, pigments, and nutrient concentration in these plants (Traversari et al., 2024).

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Production of Nano-Composite Artificial Bone Tissue Using Bioceramic Synthesis from Bio-Waste

Certain specially structured ceramics, which can be used as biomaterials to replace bone, have recently started being utilized in the medical field. The aim of this study is to produce high-bioactivity silica from corn cob waste, a widely available organic material in nature, and combine it with calcium oxide (CaO) obtained by grinding organic mussel shell waste with high bioactivity. This combination is intended to synthesize dicalcium silicate (2CaO.SiO₂) to develop an alternative tissue scaffold with high bioactivity, capable of replacing bone, for existing titanium alloys. The goal is to incorporate this scaffold into PEEK (polyether ether ketone), a novel tissue scaffold material, at varying percentages to create a next-generation innovative bone substitute material. An additional objective is to demonstrate through biocompatibility tests that the produced ceramic-polymer biocomposite exhibits antibacterial activity against Staphylococcus aureus.

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基於LS1043A多核處理器之嵌入式系統開機速度之精準計時方案

電子智能系統被廣泛應用在現代人的日常生活中,但是使用任何電子系統都必須面對系統失效的風險,就像我使用電腦可能會當機一樣。在智能車輛的應用中,電子系統的可靠性與我們的人身安全直接相關。一旦發生系統失效的狀況,恢復系統正常運行的最後一個手段是重新啟動系統,藉由系統重啟來恢復系統的正常功能。因此系統重啟的耗時,對系統的可靠性至為重要。 LS1043A晶片是多核心高階處理器,能夠運行完整的Linux操作系統。由於LS1043A架構及功能的複雜性,它的開機程序需要遵守嚴格的步驟,耗時也比一般的微控制器更長。在這個實驗中,我將了解LS1043A處理器的架構著手,由此設計一個計時器,能做到精準量測開機時間達千分之一秒,使開機時間成為能夠量化的指標。本實驗的計時方案是一個通用的設計概念,可用來量測不同類型高階處理器的開機耗時及系統可靠性評估之參考指標。

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橡實代謝物與飛鼠小腸內生菌共發酵產物之應用

This study primarily investigates the components of food residues in the stomach of flying squirrels and the metabolism of the intestinal bacteria Floricoccus tropicus. Using nuclear magnetic resonance (NMR) hydrogen spectrum analysis, the signals of long-chain fatty acids were detected in both n-hexane and 75% ethanol extracts of flying squirrel gastric residues and acorns, suggesting that acorns may be a primary food source for the flying squirrels. The study also identified Floricoccus tropicus, one of the lactic acid bacteria, from the intestines of flying squirrels and discovered its role in the metabolism of fatty acids in acorns. Results showed that polyunsaturated fatty acids significantly decreased during fermentation, indicating that they were converted into short-chain fatty acids with anti-inflammatory properties. In the antibacterial activity experiments, the acorn grease showed no inhibitory effects before fermentation, but after fermentation, the acorn grease exhibited inhibitory effects against E. coli. Furthermore, in anti-inflammatory tests, fermented acorn grease samples significantly suppressed the production of NO and TNF-α in LPSinduced RAW 264.7 cells, with greater inhibition at higher concentrations. In conclusion, the lactic acid bacteria Floricoccus tropicus was found to metabolize fatty acids of acorns into compounds with antibacterial and anti-inflammatory effects.

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Wrong seating around the table

本研究探討在一場圓桌會議中,n人逐一亂序入場找尋各自對應的名牌編號(1~n號)入座,其中1號第一個入場並坐到了k號位,此後入場的人們若發現與自己編號相同的位置是空的,就直接入座;若與自己編號相同的位置被占走了,就以逆時針方向尋找空位入座。在上述的規則下,若共有n 人,且 1 號坐到 k號位的情況,給予與問題相關統計量的組合證明。後續本研究將規則改為1 ~ p號 按照順序進場且皆想坐到 k 號位的前提下,探討了坐錯的人們是怎麼樣的循環和坐錯人數的次數分佈。並多數的研究結果皆與 stirling numbers of the first kind 有相關。 本研究還 探討了共有 n 人,且 1 號坐到 k號位的情況下, 坐錯人數的標準差函數的遞增情況 與對數函數完全曲線相關。

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潮間帶微生物動態:探索隨機中性與環境因子對細菌與古菌群落演替之影響

本研究探討了潮間帶環境中細菌與古菌的群落結構及其生態功能,並評估了隨機過程與環境因子對群落演替的影響。我們於金門南門海域的潮間帶進行了五次採樣,我們使用次世代定序(Next Generation Sequencing)進行16S rRNA 基因的定序技術分析了該區域微生物的豐度變化及其功能特性。結果顯示,細菌群落以變形菌門為優勢群,而古菌群落則以亞硝侏儒菌科為主。隨機中性模型的結果顯示古菌的豐度顯著受到隨機擴散的影響,而細菌群落則主要由鹽度、溫度和溶解氧等環境因子所驅動。經由Picrust2 代謝路徑預測的結果顯示,古菌與細菌共享多種基本代謝途徑,顯示出它們在生態上的互補性;同時,各自特有的代謝途徑則體現了它們對環境壓力的不同適應方式。本研究為潮間帶微生物群落的動態變化及生態功能提供了新的發現。

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富貴角風稜石形成機制之探討

臺灣北部海岸富貴角地區的風稜石母岩為兩輝安山岩,經過風化、風蝕及海蝕而形成目前獨特之外觀。這些岩石源自火山噴發形成的熔岩流,岩漿冷卻形成熔岩塔,裂解後受外營力作用逐漸成形。不同地理位置的風稜石受侵蝕的影響差異顯著:海岸邊的風稜石同時受到海浪和風的影響,外型較圓鈍;陸地部分則因受到海蝕影響較小,外型較為尖銳。另外,本研究利用噴砂實驗進一步驗證不同風速和風向對風稜石生成過程的影響,並分析其形態差異及地質學意義。

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應用機器學習與遙感指數於紅樹林植物分類與碳匯分析

本研究應用遙感技術和機器學習方法,提出了三個創新應用,目的在提升紅樹林生態系統的分類監測和藍碳儲量評估。 首先,建立機器學習模型(隨機森林演算法),對紅樹林植物進行自動分類,分類準確率達94.74%。此模型能夠應用於特定區域的長期監測,捕捉紅樹林覆蓋範圍和植物變化的動態趨勢。並且開發了RGBN(Red-Green-Blue-NIR Mangrove Index)遙感指數,此指數主要結合可見光波段和近紅外波段,能有效提升了紅樹林植被健康狀況評估的準確度,並具有廣泛的區域適用性,不限於特定研究區域,適用於全球範圍的紅樹林監測。最後,本研究成功整合並編寫了InVEST模型的程式碼,本模型進一步應用於紅樹林藍碳價值評估,未來將透過收集詳細的土地利用、碳匯數據及生物物理參數,量化紅樹林的藍碳價值,為碳交易與藍碳管理提供科學依據。

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