Does anyone have published/ unpublished literature of highly siderophile elements (i.e., Au+PGE) in Arcahaean shales?

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Why is there a need to teach Filipino Philosophy as Introduction to the Philosophy of the Human Person in Senior High School?

Filipino Philosophy is a mere course in Higher Education. I think that it is better to teach Filipino Philosophy as a core subject at the Senior High School Level.

25 February 2024 924 3 View

Meta analysis for cross sectional, single group studies?

Can anyone show me how to meta analyse data from the following studies? Our analysis is a little different to traditional meta analyses in that the studies we are analysing aren't interventions &...

23 October 2020 1,146 9 View

How to get the reliability analysis (Cronbach Alpha) of Forced-Choice Questionnaire with 3 choices which are Least = 0, Neutral = 1, and Most =2?

My respondents are 92 and I have 180 questions. I am using SPSS, and the software says "scale or part of scale has zero variance and will be bypassed". Can anyone help me?

26 July 2020 9,141 1 View

We examine a Variant All-Pass Band-Pass Narrow Filter circuit ?

This Project continues as an examination of ALL-PASS Band-Pass circuits. Project Paper : updated Feb 01, 2022 "Analog Phase-Filtering in Active-Band-Pass Circuits" emphasizing the use of...

18 November 2019 295 55 View

How to relate results of Welch 2 sample t-test vs two one-sided test for equivalence TOST?

Please, I have the next doubt: I have two samples (two different treatments) , and I want to prove that there is no difference in the average outcome. I test the data using the two one-sided test...

29 May 2018 7,386 2 View

Looking for publications on posttraumatic growth and moral injury?

I am looking for recent studies that have examined the relationship between treatment(s) for moral injury and posttraumatic growth. Any recommendations or citations are appreciated. Thanks.

23 March 2018 5,258 4 View

Let's say that I have a plot of Biomass concentration v/s time. How do I determine the specific growth rate curve?

I am fairly new to the field of Biotechnology.

19 February 2018 6,109 5 View

Please recommend published research on the longitudinal interactions/influence/correlation of Depressive Symptoms and Occupational Distress?

Please recommend published research on the longitudinal interactions/influence/correlation of Depressive Symptoms and Occupational Distress?: We have a prospective study of clergy. We have...

08 February 2018 2,239 3 View

Can anybody please confirm if this fish is Ostorhinchus aureus?

TL ~25mm. See at Rottnest Island on 28 April 2017 in a group of three conspecifics. Any thoughts greatly appreciated as it is out of range.

27 April 2017 7,038 2 View

Can anyone help identify these four juvenile fish, seen together at Rottnest Island, Western Australia?

Size: range from A (~80mm) to D (~120mm). Rottnest Island on 20/4/17. Could they all be juvenile Spangled Emperor (Lethrinus nebulosus) or a closely related Lethrinid? Any help with identification...

22 April 2017 4,643 3 View

Is the black sediment consider as sand? If not, how can I filter it out?

Hi researchers! I'm working on soil texture analysis, and the end result for sand is doubtful because there is black sediment appearing after drying, as shown in the figure. Is it considered sand?...

30 July 2024 557 2 View

Prevent sedimentation and maintain the suspension of powder particles in the resin ?

Hello, I am experiencing an issue with mixing micro powder with resin in a 3D printer. The problem is that sedimentation occurs after a short period (about half an hour to an hour). Could you...

23 July 2024 1,672 0 View

How do I prepare a working stock solution of 14C sodium bicarbonate to get a final activity of 3uCi?

I need to make a stock solution for radioisotopic incubations of freshwater sediments to study dark primary productivity but I have some confusion as to how I calculate the concentration of 14C...

15 July 2024 5,898 0 View

Is there any possible explanation for the statement written below?

Low magenic concenrartion indicating enhanced chemical weathering associated with warm and wet climate in detrital sediments.

14 July 2024 1,381 4 View

Increasing Area Ratio on Quality control Standard on LCMS ?

Hello everyone. During my analyses on LC MSMS, the area ratio (Standard Area/Isotopically labelled Standard Area) increases with time for the quality control point. I'm having trouble explaining...

08 July 2024 3,150 2 View

How is the preparation to obtain secondary metabolic extracts?

Hi everyone! I am working with bacteria and fungal collected from marine sediments. I would to know the methodology since the preparation of biomass until the extraction and stored of secondary...

03 July 2024 6,177 3 View

Collecting/storing plant stable isotope samples?

Hello! I am planning to collect plant leaf samples for stable isotope analysis. I will be collecting them from the field and storing fresh tissue on ice. I have heard that bringing along a food...

01 July 2024 9,125 1 View

What are some reliable methods to measure the concentration of H2 gas at ppb levels?

We'll have vials in which we expect H2 generation to occur. Over the first few days, the amount of generated H2 is expected to be at ppb level. GC (+ TCD) detector is best when your H2 level is...

18 June 2024 254 3 View

Geology Doctorate. Available for Post-doc and guest faculty. Please give suggestions. Anywhere in world ?

Geology Doctorate. Available for Post-doc and guest faculty. Please give suggestions. Anywhere in world.

09 June 2024 1,805 4 View

Can anyone provide information as to the method for a "Mathews hand test" to determine sediment thickness?

Can anyone provide information as to the method for a "Matthews (Mathews?) hand test" to determine sediment thickness? I'm looking for information on this method, but have not come accross it in...

06 June 2024 5,262 1 View