bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Effect of Variation of Palm Fronds Absorbent Concentration In Adsorption Process to Reduce Free Fatty Acid Content on Tengkawang Oil
Authors: Puspita Filda Agum , Oktaviani Eva Pramuni , Rakasiwi Rinjani Ratih , Ivontianti Wivina Diah 
Published: August 2024

Tengkawang oil that hasn’t through purification process contains free fatty acid that can affect its quality, where this essence is the polluter that must be removed because it can caused a rancid. The removal of free fatty acid content on Tengkawang oil was done through adsorption process utilizing palm fronds adsorbent by using its cellulose content. Palm fronds went through dilegnification process using 10% of NaOH, then adsorption process was conducted with adsorbent concentration variety 5, 10, 15, 20 and 25%. Adsorbent characterized by utilizing FTIR and SAA, from FTIR result shows that palm fronds contain berlignocellulose function cluster, after delignification the C=C lignin compound function cluster still can be found on FTIR result and after adsorption O-H cluster went through intensity decrement which shows that cellulose content and hydroxyl (-OH) cluster reacted with adsorbat. Furthermore, there’s absorption on C-H function cluster that indicates the existence of free fatty acid compound and other polluter that adsorbed by palm fronds adsorbent. The characteristic of palm fronds adsorbent after delignification process was conducted shows the pore size is on micropore range with surface area of 6.480 m2/g, pore volume of 0.01138 cc/g and pore radius of 12.4 Å. The result of the research shows decreasing percentage of free fatty acid, capacity value and adsorption effectiveness of Tengkawang oil that the highest is on adsorbent concentration as much as 25% with decreasing percentage of free fatty acid as much as 4.68%, adsorption capacity as much as 207.19 mg/g and adsorption effectiveness as much as 36.28%. Keywords: adsorption; delignification; free fatty acid; tengkawang oil
DETECTING OF PROBABILITY OF FINANCIAL STATEMENT FRAUD USING FRAUD HEXAGON MODEL: Evidence from Indonesian Public Companies
Authors: Sari Sahda Purnama , Hanafi Mamduh Mahmadah 
Published: August 2024

Many of Indonesian public companies had proven guilty that have committed financial statement fraud.The purpose of this research is for detecting financial statement fraud using fraud hexagon model consists of pressure, opportunity, rationalization, ccompetence, arrogance & collusion variabels. The sample in this reaserch specifically chose companies that were proven to have committed financial statement fraud and used logistical regression estimation technique assisted by STATA 14.The results of this reaserch shows that pressure proxied by financial stability, rationalization proxied by total accruals and collusion proxied by state owned enterprises (SOEs) have positive effect significantly on probability of financal statement fraud. Consequently, change of receivables, change of directors, CEO education, CEO narcissism, managerial ownership and CEO duality have negative effect on probability of financial statement fraud. meanwhile, external pressure, financial target, ineffective monitoring and auditor switching have no efffect on probability of financial statement fraud. The fraud hexagon model can be used for financial statement fraud detection because the results support the collusion variable proxied by state owned enterprises (SOEs) which indicates that regulation, supervision and punishment are still weak for parties proven to have committed financial statement fraud.
Window Function Expression: Let the Self-Join Enter
Authors: Bača Radim 
Published: August 2024

Window function expressions (WFEs) became part of the SQL:2003 standard, and since then, they have often been implemented in database systems (DBS). They are especially essential to OLAP DBSs, and people use them daily. Even though WFEs are a heavily used part of the SQL language, the amount of research done on their optimization in the last two decades is not significant.
WFE does not extend the expressive power of the SQL language, but it makes writing SQL queries easier and more transparent. DBSs always compile SQL queries with WFE using a sequence of partition-sort-compute operators, which we call a linear strategy. Plans resulting from the linear strategy are robust and, in many cases, efficient.
This article introduces an alternative strategy using a self-join, which is not considered in the current DBSs. We call it the self-join strategy, and it is based on an SQL query transformation where the result query uses a self-join query plan to compute WFE. One output of this work is a tool that can automatically perform such SQL query transformations.
We created a microbenchmark showing that the self-join strategy is more effective than the linear strategy in many cases. We also performed a cost-based experiment to evaluate the query optimizers' ability to select an appropriate strategy. The article's main aim is to show that usage of the self-join strategy for queries with WFE is beneficial if selected in a cost-based manner.
BYO: A Unified Framework for Benchmarking Large-Scale Graph Containers
Authors: Wheatman Brian , Dong Xiaojun , Shen Zheqi , Dhulipala Laxman , Łącki Jakub , Pandey Prashant , Xu Helen 
Published: August 2024

A fundamental building block in any graph algorithm is a
graph container -
- a data structure used to represent the graph. Ideally, a graph container enables efficient access to the underlying graph, has low space usage, and supports updating the graph efficiently. In this paper, we conduct an extensive empirical evaluation of graph containers designed to support running algorithms on large graphs. To our knowledge, this is the first
apples-to-apples
comparison of graph containers rather than overall systems, which include confounding factors such as differences in algorithm implementations and infrastructure.

We measure the running time of 10 highly-optimized algorithms across over 20 different containers and 10 graphs. Somewhat surprisingly, we find that the average algorithm running time does not differ much across containers, especially those that support dynamic updates. Specifically, a simple container based on an off-the-shelf B-tree is only 1.22× slower on average than a highly optimized static one. Moreover, we observe that simplifying a graph-container Application Programming Interface (API) to only a few simple functions incurs a mere 1.16× slowdown compared to a complete API. Finally, we also measure batch-insert throughput in dynamic-graph containers for a full picture of their performance.
To perform the benchmarks, we introduce BYO, a unified framework that standardizes evaluations of graph-algorithm performance across different graph containers. BYO extends the Graph Based Benchmark Suite (Dhulipala et al. 18), a state-of-the-art graph algorithm benchmark, to easily plug into different dynamic graph containers and enable fair comparisons between them on a large suite of graph algorithms. While several graph algorithm benchmarks have been developed to date, to the best of our knowledge, BYO is the first system designed to benchmark graph containers.
Fast Commitment for Geo-Distributed Transactions via Decentralized Co-Coordinators
Authors: Zhang Zihao , Hu Huiqi , Zhou Xuan , Tu Yaofeng , Qian Weining , Zhou Aoying 
Published: August 2024

In a geo-distributed database, data shards and their respective replicas are deployed in distinct datacenters across multiple regions, enabling regional-level disaster recovery and the ability to serve global users locally. However, transaction processing in geo-distributed databases requires multiple cross-region communications, especially during the commit phase, which can significantly impact system performance.
To optimize the performance of geo-distributed transactions, we propose Decentralized Two-phase Commit (D2PC), a new transaction commit protocol aiming to minimize the negative impact of cross-region communication. In D2PC, we employ multiple co-coordinators that perform commit coordination in parallel. Each co-coordinator is responsible for collecting 2PC votes and making a PreCommit decision in its local region. This approach allows for the concurrent invocation of multiple cross-region network round trips, and each region can end its concurrency control locally before replication is complete, thus significantly reducing the chances of blocking and enhancing system concurrency. Moreover, we propose the bypass leader replication reply method, leveraging decentralized co-coordinators to bypass the leader for message transmission, thereby reducing the commit latency. Experimental results have demonstrated that D2PC can reduce commit latency by 43% and improve throughput by up to 2.43 × compared to the geo-distributed transaction processing methods based on 2PC.
DEX: Scalable Range Indexing on Disaggregated Memory
Authors: Lu Baotong , Huang Kaisong , Liang Chieh-Jan Mike , Wang Tianzheng , Lo Eric 
Published: August 2024

Memory disaggregation can potentially allow memory-optimized range indexes such as B+-trees to scale beyond one machine while attaining high hardware utilization and low cost. Designing scalable indexes on disaggregated memory, however, is challenging due to rudimentary caching, unprincipled offloading and excessive inconsistency among servers.
This paper proposes DEX, a new scalable B+-tree for memory disaggregation. DEX includes a set of techniques to reduce remote accesses, including logical partitioning, lightweight caching and cost-aware offloading. Our evaluation shows that DEX can outperform the state-of-the-art by 1.7--56.3×, and the advantage remains under various setups, such as cache size and skewness.
Cones between the cones of positive semidefinite forms and sums of squares
Authors: Goel Charu , Hess Sarah , Kuhlmann Salma 
Published: August 2024

Abstract
For n, d ∈ ℕ, the cone 𝓟
n+1,2d
of positive semidefinite real forms in n + 1 variables of degree 2d contains the subcone Σ

n+1,2d
of those representable as finite sums of squares of real forms. Hilbert [11] proved that these cones coincide exactly in the Hilbert cases (n + 1, 2d) with n + 1 = 2 or 2d = 2 or (n + 1, 2d) = (3, 4).
In this paper, we induce a filtration of intermediate cones between Σ

n+1,2d
and 𝓟
n+1,2d
via the Gram matrix approach in [4] on a filtration of irreducible projective varieties V

k−n
⊊ … ⊊ Vn
⊊ … ⊊ V
0 containing the Veronese variety. Here, k is the dimension of the vector space of real forms in n + 1 variables of degree d. By showing that V
0, …, V

n
(and V

n+1 when n = 2) are varieties of minimal degree, we demonstrate that the corresponding intermediate cones coincide with Σ

n+1,2d
. We moreover prove that, in the non-Hilbert cases of (n + 1)-ary quartics for n ≥ 3 and (n + 1)-ary sextics for n ≥ 2, all the remaining cone inclusions are strict.
Study on the promotion multiple of blood flow velocity on human epidermal microcirculation of volcanic rock polymer fiber seamless knitted fabric
Authors: Qian Shuxian , Jin Zimin , Zhang Yixing , Fang Chengxiao , Jin Jing , Sun Yuqiang , Zheng Cong 
Published: August 2024

Abstract
As a material that can release infrared rays, volcanic rock polymer fibers can be used in textiles to improve human microcirculation, which is helpful to relieve chronic inflammatory diseases such as perishoulder arthritis. In this article, there are two different kinds of exterior yarns. Volcanic rock blended polyester, volcanic rock blended polyamide, polyester and polyamide are chosen as the material type of exterior yarn Ⅰ, whereas the material type of exterior yarn II is conductive polyamide yarn. The exterior yarn feed ratio of exterior yarn Ⅰ and exterior yarn II is designed as 8:0, 7:1 and 6:2 when weft plain stitch, 1 + 1 mock rib and 1 + 3 mock rib are used as the knitted structure of the fabric. According to the three-factor four-level orthogonal experimental design method, the sample protocol was established, and 16 knitted sample fabrics were produced. Then, the promotion multiple of blood flow velocity on human epidermal microcirculation of each sample was tested and analyzed. The results show that the promotion multiple of blood flow velocity on human epidermal microcirculation of the fabrics woven by volcanic rock polymer fibers is better than that of the blank control group, and the difference between fabrics with different volcanic rock polymer fibers is small. The higher the proportion of exterior yarn Ⅰ is, the better the promotion multiple of blood flow velocity on human epidermal microcirculation of fabric will be. The effect of knitted structure on the promotion multiple of blood flow velocity on human epidermal microcirculation of fabrics is not obvious. This study provides reference for the design of medical or health textiles for chronic inflammatory diseases.
Omega-3 fatty acids prevent gestational diabetes mellitus via modulation of lipid metabolism
Authors: Zhang Xuan , Li Fang , Yang Botao , Zhang Wei , Wang Yingchun 
Published: August 2024

Abstract
The incidence rate of gestational diabetes mellitus (GDM) remains high among pregnant women in the second trimester of pregnancy. However, the main clinical approach to alleviate the symptoms of GDM is to control the diet. Our study explored the therapeutic effects of omega-3 fatty acids (ω-3 FAs) on GDM at the cellular and animal levels. We found that ω-3 FAs can promote the transformation of M0 macrophages into anti-inflammatory M2 macrophages. The transformed M2 macrophages promoted β-oxidation and reduced hepatocyte lipid synthesis (P < 0.05), thereby promoting hepatic function and preventing the excessive accumulation of lipid droplets in the hepatocyte cell line HepG2. Supplementation of ω-3 FAs in pregnant GDM mice significantly reduced fasting blood glucose levels, glucose tolerance test, and insulin tolerance test indices, and lipid accumulation in the liver and effectively prevented the occurrence of liver fibrosis (P < 0.05). These therapeutic effects may be mediated through the anti-inflammatory effects of ω-3 FAs (P < 0.05). ω-3 FAs also had positive effects on the offspring of pregnant GDM mice, as demonstrated by reduced birth mortality and improved glycemic stabilization (P < 0.05). In conclusion, this study provides a possible translational medicine strategy for the treatment of GDM.
Refractory hypertension complicated with Turner syndrome: A case report
Authors: Hu Sisi , Liu Jichun , Tang Haixia , Xie Xiangrong , Wei Youquan 
Published: August 2024

Abstract
Hypertension is commonly classified into essential hypertension and secondary hypertension, although definitive classification can be challenging in some cases. Here, we discussed a patient who admitted for refractory hypertension, exhibiting various clinical manifestations including inadequate estrogen secretion, underdeveloped secondary sexual characteristics, primary amenorrhea, short stature, multiple moles, and somatic abnormalities. The patient was finally diagnosed with Turner syndrome (TS) based on clinical findings and chromosomal analysis. The genetic karyotype identified was 46,X,i(X)(q10).
Interaction of ncRNAs and the PI3K/AKT/mTOR pathway: Implications for osteosarcoma
Authors: Shao Weilin , Feng Yan , Huang Jin , Li Tingyu , Gao Shengguai , Yang Yihao , Li Dongqi , Yang Zuozhang , Yao Zhihong 
Published: August 2024

Abstract
Osteosarcoma (OS) is the most common primary malignant bone tumor in children and adolescents, and is characterized by high heterogeneity, high malignancy, easy metastasis, and poor prognosis. Recurrence, metastasis, and multidrug resistance are the main problems that limit the therapeutic effect and prognosis of OS. PI3K/AKT/mTOR signaling pathway is often abnormally activated in OS tissues and cells, which promotes the rapid development, metastasis, and drug sensitivity of OS. Emerging evidence has revealed new insights into tumorigenesis through the interaction between the PI3K/AKT/mTOR pathway and non-coding RNAs (ncRNAs). Therefore, we reviewed the interactions between the PI3K/AKT/mTOR pathway and ncRNAs and their implication in OS. These interactions have the potential to serve as cancer biomarkers and therapeutic targets in clinical applications.
Assessing the need for the adoption of digitalization in Indian small and medium enterprises
Authors: Pandey Vineet , Kumar Amit , Gupta Sumit 
Published: August 2024

Abstract
Manufacturing has experienced an immense transformation since the emergence of Industry 4.0. Digitalization has substantially improved production efficiency and product quality, and innovative business models have emerged. The backbone of emerging countries like India comprises small and medium enterprises (SMEs) that provide jobs for millions of families. Small and medium-sized businesses (SMBs) account for around 31% of the nation’s GDP and 43% of 2021–2022 exports, both significant contributors to economic growth when there is a substantial labour pool. Therefore, they are often known as India’s growth engine. Unfortunately, in today’s highly competitive digital market, they fail to keep pace with technological innovations and keep their employees up to date. This article discusses the significance of digitalization for India’s SMEs, addressing the hurdles and the methods to remove them. New consumer markets have been established due to government programs like Make in India, Digital India, and E-Government.
On Laguerre-Sobolev matrix orthogonal polynomials
Authors: Fuentes Edinson , Garza Luis E. , Saiz Martha L. 
Published: August 2024

Abstract
In this manuscript, we study some algebraic and differential properties of matrix orthogonal polynomials with respect to the Laguerre-Sobolev right sesquilinear form defined by

⟨

p
,
q

⟩

S

≔

∫

0

∞

p

*

(

x

)

W

L

A

(

x

)

q

(

x

)

d
x
+
M

∫

0

∞

(

p
′

(

x

)

)

*

W

(

x

)

q
′

(

x

)

d
x
,

{\langle p,q\rangle }_{{\bf{S}}}:= \underset{0}{\overset{\infty }{\int }}{p}^{* }\left(x){{\bf{W}}}_{{\bf{L}}}^{{\bf{A}}}\left(x)q\left(x){\rm{d}}x+{\bf{M}}\underset{0}{\overset{\infty }{\int }}{(p^{\prime} \left(x))}^{* }{\bf{W}}\left(x)q^{\prime} \left(x){\rm{d}}x,

where

W

L

A

(

x

)

=

e

−
λ
x

x

A

{{\bf{W}}}_{{\bf{L}}}^{{\bf{A}}}\left(x)={e}^{-\lambda x}{x}^{{\bf{A}}}

is the Laguerre matrix weight,

W

{\bf{W}}

is some matrix weight,

p

p

and

q

q

are the matrix polynomials,

M

{\bf{M}}

and

A

{\bf{A}}

are the matrices such that

M

{\bf{M}}

is non-singular and

A

{\bf{A}}

satisfies a spectral condition, and

λ

\lambda

is a complex number with positive real part.
Synthesis and crystal structure of methyl 2-((5-bromo-4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-yl)thio)acetate, C18H16BrN3O2S
Authors: Xian-Zhu Yuan , Ting-Qun Qiu , Yan-Hua Li , Jin Guo , Zhi-Qiang Yi 
Published: August 2024

Abstract
C18H16BrN3O2S, triclinic, P1̄ (no. 2), a = 11.5820(4) Å, b = 12.0492(4) Å, c = 14.3048(5) Å, α = 73.673(3)°, β = 88.190(3)°, γ = 72.686(3)°, V = 1826.02(12) Å3, Z = 4, R

gt
(F) = 0.0580, wRref
(F
2) = 0.1565, T = 296(2) K.
Quantitative analysis of mixed lipid nanostructures in rat skin by HPLC-MS
Authors: Al-Tannak Naser F. , Abouelatta Samar M. , Fahmy Nesma M. , Hemdan Ahmed M. 
Published: August 2024

Abstract
Liquid chromatography-mass spectrometry (LC-MS) is a very sensitive technique for determining small concentrations of drugs in fixed dose combinations or even those deposited in skin layers. Therefore, an LC-MS method was applied for determining the drugs under investigation, namely, clioquinol (CLIO), tolnaftate (TOL), and betamethasone (BETA) in Quadriderm® cream and mixed lipid nanostructures (MLNs) prepared in laboratory in the presence of potential interferents, and was applied as a dermato-kinetic study in rat’s skin. The separation was achieved within 4.5 min by using C18 column as a stationary phase and the mobile phase used were 20% phase A composed of 0.1% formic acid (v/v) and 80% phase B composed of 0.1% formic acid in acetonitrile (v/v), coupled with triple quadrupole mass spectrometer. MLNs were prepared and characterized to be compared with the conventional commercially available Quadriderm® cream. The proposed method was accurate and precise with a linearity range of 0.2–20.0 µg·mL−1 for BETA, and 0.5–400.0 µg·mL−1 for CLIO and TOL and a better bioavailability of the new formulation was obtained ensuring the capability of the nanoparticles to accumulate the drugs within the skin layers. In conclusion, the LC-MS method was accurate and precise for the determination of the three drugs under investigation in cream dosage form and skin tissues.
JOÃO BURIDAN E A RETOMADA DA SUPOSIÇÃO NATURAL
Authors: Miquelanti Roberta Magalhães 
Published: August 2024

Esse artigo tem como objetivo tratar de uma noção comum nos tratados lógicos do século XIII, mas que praticamente desaparece nas teorias no século XIV: a suposição natural. Primeiramente, tentaremos mostrar como essa noção aparece no século XIII, especialmente na obra de Pedro da Espanha. Num segundo momento, trataremos da interpretação dessa noção no quadro nominalista do filósofo medieval João Buridan (séc. XIV). O papel da suposição natural nesse quadro é cobrir os casos em que os termos de uma proposição supõem por tudo aquilo que significam, sejam coisas passadas, presentes e futuras, característica que torna possível que a proposição seja verdadeira mesmo se as coisas às quais seus termos se referem não existem no mundo no momento da avaliação da proposição. Tentaremos mostrar como a manutenção da suposição natural em sua teoria exige: (i) uma reorganização do quadro dos tipos de suposição, e (ii) a inserção da suposição natural em que um quadro proposicional.
DA NEUROÉTICA À NEUROBIOÉTICA
Authors: Dall'Agnol Darlei 
Published: August 2024

Resumo: Neste artigo, argumento que a neuroética possui uma base cientificista equivocada dificultando a compreensão da ética necessária para a neurociência e suas aplicações tecnológicas. Por isso, defendo que a neuroética deve ser transformada em neurobioética para tratar problemas morais a partir de princípios tais como o respeito pela pessoa, justiça social etc. Para ilustrar, discuto alguns temas específicos daquilo que chamo ‘neurobioética.’ Abstract: In this paper I argue that neuroethics has a problem in its scientificist assumptions making difficult to understand the ethics needed for the neurosciences e their technological applications. I maintain that neuroethics must be transformed into neurobioethics in order to better discuss moral problems in this domain using principles such as respect for persons, social justice etc. To illustrate, I examine some specific issues in the domain of ‘neurobioethics.’